Article
Chemistry, Physical
Madeleine Han, Isabel Gomez-Recio, Daniel Gutierrez Martin, Nathaly Ortiz Pena, Maria Luisa Ruiz-Gonzalez, Mohamed Selmane, Jose M. Gonzalez-Calbet, Ovidiu Ersen, Andrea Zitolo, Benedikt Lassalle-Kaiser, David Portehault, Christel Laberty-Robert
Summary: Manganese and cobalt perovskite oxides are highly active electrocatalysts for ORR and OER. By synthesizing different perovskite nanoparticles and using X-ray absorption spectroscopy and electron energy loss spectroscopy, we found that the oxidation states of Mn and Co in single B-site perovskites change during electrocatalysis, while they remain unchanged in mixed Mn/Co perovskite. This study highlights the importance of cationic composition and vacancy control in tuning oxygen electrocatalysis.
Article
Chemistry, Physical
Madeleine Han, Isabel Gomez-Recio, Daniel Gutierrez Martin, Nathaly Ortiz Pena, Maria Luisa Ruiz-Gonzalez, Mohamed Selmane, Jose M. Gonzalez-Calbet, Ovidiu Ersen, Andrea Zitolo, Benedikt Lassalle-Kaiser, David Portehault, Christel Laberty-Robert
Summary: Manganese and cobalt perovskite oxides are highly active electrocatalysts for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), respectively. The role of cationic composition and charge state in these perovskites in the mechanism of oxygen electrocatalysis for ORR and OER have been questioned. The results suggest that cationic substitutions and control of cationic vacancies can tune the rate-determining steps of the electrocatalytic cycles.
Review
Chemistry, Multidisciplinary
Yanhui Song, Bingshe Xu, Ting Liao, Junjie Guo, Yucheng Wu, Ziqi Sun
Summary: This Review examines the latest advances in 2D metal (hydr)oxide nanosheets in electrocatalysis, discussing the relationship between electronic structure and catalytic properties, and proposing a series of strategies for enhancing electrocatalysis performance through electronic structure tuning. Perspectives on current challenges and future trends for designing 2D metal (hydr)oxide electrocatalysts with significant catalytic activity are outlined.
Article
Chemistry, Multidisciplinary
Yu Li, Gao Chen, Hsiao-Chien Chen, Yanping Zhu, Liangshuang Fei, Longwei Xu, Tiancheng Liu, Jie Dai, Haitao Huang, Wei Zhou, Zongping Shao
Summary: Although the bulk properties of catalytic materials can be easily regulated by doping, their surface where electrocatalysis occurs is often hard to be controlled. In this work, a surface tailoring strategy is proposed to finely manipulate the surface cation configuration of a Ruddlesden-Popper perovskite La2NiO4. By removing surface-enriched inactive La element and forming active Ni-Fe pairs, the surface tailored catalyst exhibits exceptional water oxidation performance. The study demonstrates that a dynamically reconstructed thin-layer surface with an equal amount of Ni and Fe elements, combined with a steady La-terminated subsurface, is the key to achieving high OER activity and durability.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Engineering, Environmental
Xiaoran Zhang, Yunqiu Wang, Kun Wang, Yilin Huang, Dandan Lyu, Feng Yu, Shuangbao Wang, Zhi Qun Tian, Pei Kang Shen, San Ping Jiang
Summary: In this study, N, S co-doped graphene nanosheets were synthesized effectively by pyrolysis of a mixture of 2,6-diaminopyridine as N source and ammonium persulfate as S source. By tuning the ratio of graphitic-N and thiophenic-S dopants in the nanosheets, the active sites were engineered to achieve optimized intermediates energy for three-reaction pathways, leading to enhanced electrocatalytic activity and selectivity for water-cycled reactions such as HER, OER, and ORR.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Harish Singh, David Prendergast, Manashi Nath
Summary: This article systematically studied the effect of anion electronegativity and covalency on the electrocatalytic performance of copper-based chalcogenides (Cu2X, X= O, S, Se, and Te) in overall water splitting. The results showed that Cu2Te exhibited the highest oxygen evolution reaction (OER) activity and could sustain high current density for a long time. Density functional theory calculations were used to probe the intrinsic catalytic activity of these chalcogenide surfaces, and it was found that the hydroxyl adsorption plays a critical role in the onset and progress of OER activity. The -OH adsorption energy was also found to be a simple and accurate descriptor for explaining the catalytic efficiency.
JOURNAL OF PHYSICS-ENERGY
(2023)
Article
Chemistry, Physical
Harish S. Chavan, Chi Ho Lee, Akbar I. Inamdar, Jonghoon Han, Sunjung Park, Sangeun Cho, Nabeen K. Shreshta, Sang Uck Lee, Bo Hou, Hyunsik Im, Hyungsang Kim
Summary: This study successfully prepared a catalyst with excellent electrocatalytic performance by changing the composition ratio of nickel-vanadium layered double hydroxides. The optimized catalyst exhibited ultralow overpotentials and Tafel slope, as well as long-term stability. This research is of great importance for the design of advanced water oxidation catalysts.
Article
Nanoscience & Nanotechnology
Dingzhong Luo, Baopeng Yang, Zongwei Mei, Qing Kang, Gen Chen, Xiaohe Liu, Ning Zhang
Summary: In this study, an element doping strategy was proposed to optimize the d-band state of serpentine materials for enhanced oxygen evolution reaction (OER) activity. The results showed that Fe3+ doping significantly improved the OER activity of Ni3Ge2O5(OH)(4) nanosheets by reducing the Gibbs free energy change in the rate-determining step. The Fe3+ doped nanosheets exhibited reduced adsorptive/formative resistance of intermediates and enhanced charge transfer, leading to improved OER kinetics.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Green & Sustainable Science & Technology
Huan Liu, Ji Qi, Ming Feng, Hang Xu, Ruiping Liu, Nan Li, Chen Wang, Yuan Zhang, Yuting Zhang, Weiming Lu
Summary: Transition metal oxides (TMOs) have been extensively studied in various electrochemical processes due to their low cost, stability, and activity. The study focused on the oxygen evolution reaction (OER) activity of Van der Waals La2/3Sr1/3MnO3 (LSMO) membrane as a function of continuous strain manipulation via curvature change, showing approximately 800% OER activity tunability with only around 0.4% in situ strain modulation. Additionally, changes in the in-plane interaction strength of the e(g) orbital were found to correspond to the sensitive OER tunability, favoring 3dx(2)-y(2) orbital occupancy in LSMO for OER enhancement.
ADVANCED SUSTAINABLE SYSTEMS
(2021)
Article
Chemistry, Multidisciplinary
Zhi-Peng Wu, Huabin Zhang, Shouwei Zuo, Yan Wang, Song Lin Zhang, Jing Zhang, Shuang-Quan Zang, Xiong Wen (David) Lou
Summary: A highly efficient bimetallic Ni-Fe selenide-derived OER electrocatalyst is reported in this study, with the structure-activity correlation of the active centers studied. It was found that the active center located on Ni sites showed moderate bindings with oxygenous intermediates, leading to enhanced OER performance.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Qian Lin, Daying Guo, Ling Zhou, Lin Yang, Huile Jin, Jun Li, Guoyong Fang, Xi'an Chen, Shun Wang
Summary: Needled-like heterostructure Co1-xS/Co(OH)F catalysts with excellent OER catalytic performance were successfully fabricated. The advantages of this catalyst design include increased active sites, optimized adsorption and desorption energy in the OER process, and the enhanced local electric field effect of the needle-like structure.
Article
Chemistry, Multidisciplinary
Yonggui Zhao, Wenchao Wan, Nanchen Dongfang, Carlos A. Triana, Lewis Douls, Chong Huang, Rolf Erni, Marcella Iannuzzi, Greta R. Patzke
Summary: In this study, a sulfur heteroatom tuning strategy was introduced to optimize the performance of active Ni and Fe centers in coordination polymer catalysts. The sulfur engineering of Ni/Fe-CPs was found to facilitate dioxygen formation by optimizing the local electronic structure of their active centers. The sulfur-doped Ni/Fe-CPs showed higher OER activity compared to sulfur-free NiFe-based electrocatalysts.
Review
Chemistry, Multidisciplinary
Shenzhou Li, Tanyuan Wang, Qing Li
Summary: This review introduces the catalytic mechanism of Pt-based electrocatalysts and summarizes the effects of metal-support interactions (MSI) on supported Pt electrocatalysts. The prospect of optimizing the performance of Pt-based electrocatalysts by engineering MSI is exhibited.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Yu Zhang, Weimeng Chi, Baiqing Zhang, Zhuoxun Yin, Xinzhi Ma, Yang Zhou, Wei Chen, Lingling Xu, Jinlong Li
Summary: A nanosheet catalyst composed of carbon nanotubes encapsulated with MoC/Mo2C is reported, showing low overpotentials and outstanding performance in a two-electrode system. It demonstrates exceptional durability, highlighting its promising potential for large-scale water-splitting applications.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Analytical
Ruobing Zheng, Lili Zhu, Changdian Li, Ziqiang Wu, Yanan Huang, Jie Yang, Renhuai Wei, Xuebin Zhu, Yuping Sun
Summary: Misfit-layered Ca3Co4O9 was investigated as an oxygen evolution reaction catalyst for electrochemical water splitting. Oxygen vacancies were effectively induced by ball milling, as confirmed by electronic paramagnetic resonance and X-ray photoelectron spectrometer measurements. The sample with a ball milling time of 24 hours showed the best electrochemical performance, attributed to the induced oxygen vacancies and enhanced specific surface area. This work provides an effective route for improving the electrochemical oxygen evolution reaction performance of misfit-layered cobaltates.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Yan Cheng, Yongzhen Ma, Zhener Dang, Renrui Hu, Chenjiao Liu, Mi Chen, Lei Gao, Ying Lin, Tong Wang, Guanjun Chen, Haibo Yang
Summary: This study developed a facile template-free and one-step method to construct unique multi-cavity mesoporous carbon microspheres for enhanced microwave absorption. The quantity of mesopores can be effectively regulated through controlling the addition of acetone. The porous structure plays a significant role in dielectric and absorption capability. Carbon microspheres with appropriate mesoporous structure showed attractive absorption performance even at a thickness of only 1.6 mm.
Article
Chemistry, Multidisciplinary
Hoang-Long Du, Karolina Matuszek, Rebecca Y. Hodgetts, Khang Ngoc Dinh, Pavel V. Cherepanov, Jacinta M. Bakker, Douglas R. MacFarlane, Alexandr N. Simonov
Summary: Electrochemical lithium-mediated nitrogen reduction can be used to synthesize ammonia from renewables, but integrating it into electrolyzer devices is challenging due to the lack of understanding of the relationship between performance and proton transport parameters. In this study, a top-performance N-2 electroreduction system was used to investigate the correlation between reaction metrics and proton carrier properties, including alcohols, a phosphonium cation, tetrahydrofuran, a Bronsted acid, ammonium, and water. The study showed that optimized electrolyte compositions are required for productive carriers, and ammonia electrosynthesis with the phosphonium cation and iso-propanol achieved performance close to the ethanol benchmark. It was also found that ethanol undergoes irreversible degradation through reaction with oxidized solvent, unlike iso-propanol and phosphonium cation proton carriers.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Chun-Yu Cheng, Yuan-Yuan Guo, Yi-Ming Zou, Amanda Jiamin Ong, Alfred Iing Yoong Tok, Shuzhou Li
Summary: The melting mechanisms of Pt-based multimetallic nanoparticles (NPs) were investigated using molecular dynamics (MD) simulation. The study found that the melting and coalescence behaviors of heterogeneous Pd-Pt NPs with different sizes and compositions varied, and PtPd alloy could form at the Pd/Pt interface before complete melting of Pd NP. Furthermore, a two-step melting process was observed in Pd/Pt/Ir trimetallic NPs.
Article
Nanoscience & Nanotechnology
Bo Niu, Delong Cai, Zhihua Yang, Xiaoming Duan, Wenjiu Duan, Donghui Long, Shuzhou Li, Dechang Jia, Yu Zhou
Summary: The high-temperature dielectric loss of hexagonal boron nitride (h-BN) ceramics can be reduced by orienting grains, leading to a minimized defect ions transport and lower dielectric loss.
SCRIPTA MATERIALIA
(2023)
Article
Chemistry, Physical
Guanjun Chen, Jinheng Ma, Junxuan Zhang, Ying Lin, Tong Wang, Yan Cheng, Haibo Yang, Fei Ma
Summary: A ternary hybrid consisting of Pt nanocrystals, ultrathin nanoflower-like nickel carbonate hydroxide (NiCH) and porous carbon is designed to improve the operational durability of Pt-based anodic electrocatalysts in direct methanol fuel cells (DMFCs). The NiCH facilitates CO poisoning removal by dissociating water molecules and accelerating charge transfer, while porous carbon offsets the poor conductivity of NiCH. The hybrid catalyst demonstrates high stability, retaining over 39% of its initial activity after 5000 s of testing and experiencing only a 25% reduction in peak current after 8000 CV cycles. This work provides a promising candidate for the design of DMFCs anodic electrocatalysts.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Jiayin Li, Cheng Qian, Yunfei Hu, Jianfeng Huang, Guanjun Chen, Liyun Cao, Fangmin Wang, Koji Kajiyoshi, Yong Zhao, Yijun Liu, Zhenjiang Li, Hong Yang, Zhanwei Xu
Summary: The fabrication of transition-metal catalytic materials for sodium-selenium batteries is a promising strategy, and it is important to understand the effects of bonding interactions and electronic structures on the sodium storage process. This study demonstrates that a lattice-distorted nickel structure can form different bonding structures with Na2Se4, which enhances the catalytic activity in Na-Se batteries. By using this nickel structure as an electrode, rapid charge transfer and high cycle stability are achieved. The electrode exhibits excellent storage performance, with a capacity of 345 mAh g(-1) at 1 C after 400 cycles. The regulated electronic structure in the distorted nickel structure promotes the formation of a Ni-3-Se tetrahedral bonding structure, which facilitates the redox reaction of Na2Se4 during the electrochemical process. This study provides insights for the design of high-performance bonding structures in conversion-reaction-based batteries.
Article
Chemistry, Multidisciplinary
Chin Guan Ho, Magdiel I. Setyawati, Glen M. DeLoid, Ke Li, Sunil S. Adav, Shuzhou Li, Say Chye Joachim Loo, Philip Demokritou, Kee Woei Ng
Summary: Exploitation of nature-derived materials is important for environmental sustainability, and cellulose is particularly interesting due to its abundance. Cellulose nanofibers (CNFs) have found applications as emulsifiers and lipid digestion modulators in food. This report demonstrates that CNFs can be modified to modulate toxin bioavailability in the gastrointestinal tract by forming inclusion complexes and promoting interaction with surface hydroxyl groups. Functionalized CNFs (FCNFs) were shown to effectively interact with the pesticide boscalid, and using an in vitro GIT simulation platform, it was found that FCNFs had a greater effect in retarding triglyceride digestion and binding boscalid in a simulated intestinal fluid environment. Overall, FCNFs have the potential to be developed into a functional food ingredient for modulating food digestion and toxin uptake.
Article
Chemistry, Physical
Tong Wang, Leyan Zhang, Aoyu Zhang, Jiaxiang Liu, Luo Kong, Guanjun Chen, Yan Cheng, Ye Tian, Haibo Yang, Yongming Hu, Zhuo Xing, Chunchun Li, Li Jin
Summary: The NBT-KBT-KNN ceramic solid solution was synthesized by solid phase method with different KNN content. XRD, Raman, and SEM results confirmed the formation of solid solutions with a stable perovskite structure. The addition of KNN enhanced the relaxor ferro-electrics properties and improved the energy storage performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Tian Chen Li, Congjian Lin, Min Luo, Pinji Wang, Dong-Sheng Li, Shuzhou Li, Jiang Zhou, Hui Ying Yang
Summary: An efficient adsorptive additive strategy is proposed to reshape the electric double layer and regulate Zn interfacial chemistry, solving the problem of unstable Zn interface caused by undesired dendrites and parasitic side reactions. The self-adaptive adlayer constructed creates a horizontally aligned Zn deposition along the (002) plane and a localized environment lacking H2O and SO4 (2-), resulting in thermodynamically stable and highly reversible Zn electrochemistry. The achieved reversible plating/stripping of 3800 h and high Coulombic efficiency of 99.8% demonstrate the potential for practical application in a scalable, low-cost, rechargeable battery.
ACS ENERGY LETTERS
(2023)
Review
Chemistry, Physical
Huaming Yu, Chade Lv, Chunshuang Yan, Guihua Yu
Summary: This review emphasizes the importance of aqueous aluminum metal batteries (AMBs) and identifies the instability of the aluminum anode/electrolyte interface (AEI) as the main challenge to the further development of AMBs. The review also provides a systematic overview of recent progress in rational interface engineering principles and offers suggestions and perspectives for optimizing the aluminum anode and aqueous electrolytes to enable a stable and durable AEI.
Review
Nanoscience & Nanotechnology
Moorthy Krishnamachari, Syama Lenus, K. Pradeeswari, R. Arun Pandian, Mohanraj Kumar, Jih-Hsing Chang, Senthil Pandian Muthu, Ramasamy Perumalsamy, Zhengfei Dai, Paranthaman Vijayakumar
Summary: Fundamental structural modification techniques of nanomaterials can be used to control the electronic structure of active sites and improve electrocatalytic activities. Appropriate surface reconstruction is necessary to overcome large electrochemical overpotential. Understanding fundamental structural modification mechanisms, such as the Janus structure, spillover effect, d-band center shift theory, and interfacial coupling, is essential. The Mott-Schottky (M-S) effect is a fundamental interface and valence engineering strategy that has gained interest recently due to its ability to enable mass transport, regulate the density of states, enable rapid electron transfer via band bending, and create a synergistic effect at the metal-semiconductor interface.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Siwen Zhao, Mingwei Chang, Jiyuan Liu, Guoshuai Shi, Yuqin Yang, Huoliang Gu, Jianghong Zhang, Chunlei Yang, Haonan Tong, Chenyuan Zhu, Kecheng Cao, Shuzhou Li, Liming Zhang
Summary: Mitigating nitrogen oxide emissions is crucial for addressing global warming and improving air quality. Electrochemically converting nitrogen oxide pollutants into valuable fuels such as ammonia and hydroxylamine is of great significance, but current methods are hindered by complex reaction pathways and slow kinetics. In this study, we demonstrated that monodispersed transition-metal sites, specifically iron and nickel, can efficiently electrocatalyze nitric oxide conversion with high selectivity, activity, and durability. The metal centers strongly regulate the distribution of nitrogen products, with nickel favoring ammonia production and iron exhibiting superior selectivity towards hydroxylamine. Operando Fourier transform infrared spectroscopy provided insights into the different NO adsorption capabilities of single-atomic nickel and iron, which explain the different reduction pathways observed.
Review
Chemistry, Multidisciplinary
Sijia Zhao, Ya Chen, Yaoda Liu, Jun Cheng, Zhengfei Dai
Summary: Electrocatalytic water splitting is important for producing clean hydrogen energy to mitigate the energy crisis and reduce pollution. Layered metal phosphosulphides (MPS3) have attracted significant interest in the catalytic community, but their low intrinsic activity hinders their application as efficient electrocatalysts for water splitting. Strategies such as exfoliation, doping, and heterojunction construction have been proposed to enhance the performance of MPS3-based electrocatalysts. This review provides guidance for the design and development of advanced electrocatalysts for hydrogen production.
Article
Chemistry, Physical
Jade Nadine S. Ang, Manjunath Chatti, Khang N. Dinh, Stuart R. Batten, Alexandr N. Simonov, David R. Turner
Summary: When immobilised on an electrode surface, MOFs can effectively enhance the OER for green hydrogen synthesis. This study investigates the potential catalytic effect of a macrocyclic amine core coordinating to cobalt ions. The modified nickel foam electrode sustained a stable OER rate at low overpotential, confirming the transformation of MOF into active cobalt oxyhydroxide.
MOLECULAR SYSTEMS DESIGN & ENGINEERING
(2023)
Article
Chemistry, Physical
Aoyu Zhang, Tong Wang, Jiaxiang Liu, Jiaqi Liu, Guanjun Chen, Haibo Yang, Luo Kong, Yan Cheng, Ye Tian, Chunchun Li, Li Jin
Summary: The BSZT-NBT ceramics exhibit superb energy storage performance, including ultra-high energy storage efficiency and elevated energy density. They also demonstrate excellent temperature and frequency stability, as well as outstanding charge-discharge performance. The introduction of NBT effectively improves the energy storage capability of BT-based ceramics. The BSZT-NBT ceramics hold promise for addressing the limitations of lead-free ceramic capacitors and advancing their practical applications in electronic devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Bolun Yu, Denan Li, Qianqian Zhu, Shufan Yao, Lifeng Zhang, Yanshuo Li, Zhenxin Zhang
Summary: This study successfully improved the catalytic activity of a zeolitic octahedral metal oxide by incorporating a single zinc species into its micropore. The zinc incorporation achieved a high ethane conversion rate and ethylene selectivity. Mechanism study showed that the isolated zinc site played a crucial role in activating oxygen and ethane, as well as stabilizing intermediates and transition states.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Ruoqi Liu, Hao Fei, Jian Wang, Ting Guo, Fangyang Liu, Zhuangzhi Wu, Dezhi Wang
Summary: This work successfully synthesized a high-performing S-enriched MoS2 catalyst for electrocatalytic nitrogen reduction reaction (NRR), demonstrating high activity and selectivity. The synergistic effect of the 1T phase and bridging S22- species was shown to play a positive role in NRR performances, and DFT calculations revealed the mechanism behind the improved performance.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Pan Xia, Lele Zhao, Xi Chen, Zhihong Ye, Zhihong Zheng, Qiang He, Ignasi Sires
Summary: This study presents a modified gas-diffusion electrode (GDE) for highly efficient and stable H2O2 electrosynthesis by using trace polymethylhydrosiloxane (PMHS). DFT calculations provide an in-depth understanding of the roles of PMHS functional groups.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Kwangchol Ri, Songsik Pak, Dunyu Sun, Qiang Zhong, Shaogui Yang, Songil Sin, Leliang Wu, Yue Sun, Hui Cao, Chunxiao Han, Chenmin Xu, Yazi Liu, Huan He, Shiyin Li, Cheng Sun
Summary: Different B-doped rGO catalysts were synthesized and their 2e- oxygen reduction reaction (ORR) performance was investigated. It was found that the 2e- ORR selectivity of B-doped rGO was influenced by the B content and oxygen mass transfer conditions. The synthesized catalyst exhibited high 2e- ORR selectivity and was capable of degrading organic pollutants continuously.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Li Lv, Lin Lei, Qi-Wen Chen, Cheng-Li Yin, Huiqing Fan, Jian-Ping Zhou
Summary: Monoclinic phase La2Ti2O7 and orthorhombic phase Bi4Ti3O12 are widely used in photocatalysis due to their layered crystal structure. The electronic structures of these phases play a crucial role in their photocatalytic activity. Heat treatment in a nitrogen atmosphere introduces more oxygen vacancies into the S-scheme heterojunction, leading to enhanced NO removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Choe Earn Choong, Minhee Kim, Jun Sup Lim, Young June Hong, Geon Joon Lee, Keun Hwa Chae, In Wook Nah, Yeomin Yoon, Eun Ha Choi, Min Jang
Summary: In this study, the synergistic effect between argon-plasma-system (AP) and catalysts in promoting the production of reactive species for water remediation was investigated. By altering the oxygen vacancies concentration of CeO2/Bi2O3 catalyst, the production of hydrated electrons was stimulated for PFOA removal. The results showed that the built-in electric field in the Bi/Ce0.43 interface enhanced electron migration and eaq- generation, leading to improved PFOA removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yushan Wu, Di Xu, Yanfei Xu, Xin Tian, Mingyue Ding
Summary: Efficient synthesis of primary amines from carbonyl compounds was achieved via reductive amination using Ru@NC-Al2O3 as a catalyst, exhibiting high activity and selectivity under mild conditions.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yilan Jiang, Peifang Wang, Tingyue Chen, Keyi Gao, Yiran Xiong, Yin Lu, Dionysios D. Dionysiou, Dawei Wang
Summary: By controlling the content of Co and Ni in Co1-xNixFe2O4, the production of O-1(2) from H2O2 can be regulated. NiFe2O4, with the lowest lattice distortion degree, can efficiently produce O-1(2) as the dominant reactive oxygen species. The system also exhibits significant resistance to water matrix interference.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Jia-Cheng E. Yang, Min -Ping Zhu, Daqin Guan, Baoling Yuan, Darren Delai Sun, Chenghua Sun, Ming-Lai Fu
Summary: This study successfully modulated the electron configuration and spin state of millimetric metal catalysts by adjusting the support curvature radius. The electronic structure-oriented spin catalysis was found to affect the degradation of pollutants, providing new insights for the design and production of highly active, reusable, and stable catalysts.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Tao Zhong, Su Tang, Wenbin Huang, Wei Liu, Huinan Zhao, Lingling Hu, Shuanghong Tian, Chun He
Summary: In this study, a highly efficient photocatalyst for the elimination of CH3SH was developed by engineering different crystal facets and coupling them with PHI. Cu (111)/PHI exhibited the highest elimination efficiency and showed good stability and reusability. The enhanced surface electron pump effect and effective adsorption mechanisms were revealed through comprehensive characterizations and DFT calculations.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Feifei Yang, Tianyu Zhang, Jiankang Zhao, Wei Zhou, Nicole J. Libretto, Jeffrey T. Miller
Summary: A Ni3Sn intermetallic nano particle was found to have geometrically isolated Ni sites that could selectively cleave C-O bonds in biomass derivatives. This nano particle showed high activity and selectivity towards 2-methylfuran, unlike Ni nanoparticles that produced other unwanted products derived from the aromatic rings.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Lulu Qiao, Di Liu, Anquan Zhu, Jinxian Feng, Pengfei Zhou, Chunfa Liu, Kar Wei Ng, Hui Pan
Summary: This study reveals that surface evolution plays a crucial role in enhancing the electrocatalytic performance of transition metal oxides for electrochemical nitrate reduction reaction (e-NO3RR). Incorporating nickel into Co3O4 can promote surface reconstruction and improve the adsorption of intermediates and reduce energy barriers, leading to enhanced catalytic performance. The reconstructed cobalt-nickel hydroxides (CoyNi1_y(OH)2) on the catalyst's surface serve as the active phase.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Xinyu Song, Yang Shi, Zelin Wu, Bingkun Huang, Xinhao Wang, Heng Zhang, Peng Zhou, Wen Liu, Zhicheng Pan, Zhaokun Xiong, Bo Lai
Summary: This study explores the discriminative activities and mechanisms for activation of O-O bond in peroxy compounds via single-atom catalysts (SACs) with higher coordination numbers (M-N5). The atomic catalyst (Fe-SAC) with Fe-N5 as the active center was constructed, effectively activating peroxymonosulfate (PMS), peroxydisulfate (PDS), and hydrogen peroxide (H2O2). The study demonstrates the degradation efficiencies of acyclovir are related to the O-O bond length in different peroxy compounds, and reveals the discriminative mechanisms for activation of O-O bond in different Fenton-like systems.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Yangzhuo He, Hong Qin, Ziwei Wang, Han Wang, Yuan Zhu, Chengyun Zhou, Ying Zeng, Yicheng Li, Piao Xu, Guangming Zeng
Summary: A dual-metal-organic framework (MOF) assisted strategy was proposed to construct a magnetic Fe-Mn oxycarbide anchored on N-doped carbon for peroxymonosulfate (PMS) activation. The FeMn@NC-800 catalyst exhibited superior activity with almost 100% degradation of sulfamethazine (SMZ) in 30 minutes. The study provided insights for the rational design of high-performance heterogeneous catalysts and proposed a novel nonradical-based catalytic oxidation for environmental cleaning.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
