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, Multidisciplinary
Chenze Chai, Qinghai Shu, Qiang Su, Jian Wang, Xijuan Lv, Dongxu Wang, Lixiang Zhong
Summary: The combination of 3-nitro-1,2,4-triazol-5-one (NTO) and ammonium perchlorate (AP) can effectively harness the advantages of both materials. By employing density functional theory (DFT) and ab initio molecular dynamic (AIMD) studies, the interaction mechanism between NTO and AP on multiple scales has been investigated. The results show that the combination of NTO and AP can form an excellent NTO/AP co-crystal with high feasibility.
Article
Biochemistry & Molecular Biology
Syama Lenus, Pallavi Thakur, Sai Smruti Samantaray, Tharangattu N. Narayanan, Zhengfei Dai
Summary: Metal phosphorus trichalcogenide (MPX3) materials have attracted attention as potential host electrodes in lithium batteries due to their environment-friendliness and advantageous X-P synergic effects. Two-dimensional iron thio-phosphate (FePS3) nanoflakes were synthesized using a salt-template synthesis method, and their electrochemical application in a high-capacity lithium primary battery (LPB) demonstrated a high specific capacity, energy density, and power density. The observed discharge mechanism of the FePS3-based primary cell and the findings from post-mortem analyses provide mechanistic insight into its high capacity.
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
Chemistry, Physical
Yaoda Liu, Thangavel Sakthivel, Feng Hu, Yahui Tian, Dongshuang Wu, Edison Huixiang Ang, Hang Liu, Shengwu Guo, Shengjie Peng, Zhengfei Dai
Summary: Researchers have developed a non-precious pH-robust electrocatalyst for efficient and stable water electrolysis. This catalyst exhibits excellent catalytic activity for hydrogen and oxygen evolution reactions in alkaline electrolytes, achieving ultralow overpotentials and high OER current density.
ADVANCED ENERGY MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Qiaomei Luo, Lan Sun, Yiwei Zhao, Chen Wang, Hongqiang Xin, Danyang Li, Fei Ma
Summary: In this study, a hollow NiCoP/MoS2-V heterostructure with 63.2% 1T-MoS2 was synthesized by a simple solvothermal method. The heterostructure showed abundant catalytic active sites, improved mass transfer properties, and optimized electronic states. The low energy difference between 2H and 1T phases and near zero free energy of hydrogen adsorption resulted in enhanced kinetics and excellent catalytic performances. Specifically, the NiCoP/MoS2-V composite exhibited low overpotential (74.6 mV at 10 mA cm-2) and superior stability in alkaline electrolytes, opening up new possibilities for developing high-activity electrocatalysts.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Multidisciplinary Sciences
Lingfei Tang, Bowen Chen, Zhonghan Zhang, Changqi Ma, Junchao Chen, Yage Huang, Fengrui Zhang, Qingyu Dong, Guoyong Xue, Daiqian Chen, Chenji Hu, Shuzhou Li, Zheng Liu, Yanbin Shen, Qi Chen, Liwei Chen
Summary: Solid polymer electrolytes (SPEs) are considered promising electrolyte for long-cycling lithium metal batteries (LMBs). However, the narrow electrochemical stability window (ESW) of typical SPEs limits the improvement of LMBs' specific capacity and energy density. In this study, a polyfluorinated crosslinker was applied to enhance the oxidation resistance of SPEs, resulting in a wide ESW and improved performance of high-voltage LMBs.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Yuanmiao Sun, Jiarui Wang, Shibo Xi, Jingjing Shen, Songzhu Luo, Jingjie Ge, Shengnan Sun, Yubo Chen, John V. Hanna, Shuzhou Li, Xin Wang, Zhichuan J. Xu
Summary: In this study, the relationship between surface reconstruction of spinel electrocatalysts and metal-oxygen covalency polarity was investigated. It was found that a stronger metal-oxygen covalency contributes to a more thorough surface reconstruction towards oxyhydroxides. The researchers also developed a criterion to evaluate the reconstruction degree and provide guidelines for cation selection in spinel pre-catalyst design.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Danyang Li, Qiaomei Luo, Hongqiang Xin, Chen Wang, Yiwei Zhao, Huizhong Bai, Fei Ma
Summary: A controllable fabrication method for heterogeneous catalysts has been developed, where renewable particles are generated on graphitized wood-derived carbon frameworks and molybdenum disulfide nanoflakes are anchored on CNTs. The resulting hybrid electrode exhibits superior performance for the hydrogen evolution reaction, with low overpotential and high stability.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Materials Science, Ceramics
Yuchen Liu, Yu Zhou, Dechang Jia, Zhihua Yang, Wenjiu Duan, Daxin Li, Shuzhou Li, Ralf Riedel, Bin Liu
Summary: Using ab-initio calculations, the atomic structure and mechanical properties of amorphous silicoboron carbonitride ceramics with 13 different compositions in the Si-BN-C phase diagram were investigated. The chemical bonds and local structures in the amorphous network are dependent on the elemental composition. The mechanical properties of SiBCN ceramics are greatly influenced by their local structural characteristics. SiB2C3N2 and SiB3C2N3 with low Si contents and moderate C and/or BN contents exhibit high elastic moduli, high tensile/shear strengths, and good debonding capability. The optimization of SiBCN ceramics can be guided based on these discoveries.
JOURNAL OF ADVANCED CERAMICS
(2023)
Review
Chemistry, Multidisciplinary
Marliyana Aizudin, Wangqin Fu, Rafeeque Poolamuri Pottammel, Zhengfei Dai, Huanwen Wang, Xianhong Rui, Jixin Zhu, Cheng Chao Li, Xing-Long Wu, Edison Huixiang Ang
Summary: Graphene-based materials (GBMs) have unique properties that make them a promising choice for rechargeable battery electrodes. The development of lithium-ion batteries (LIBs) has been limited by lithium resources, high costs, and safety concerns, leading to the exploration of zinc-based alternatives. This review highlights recent advancements in GBMs and their composites for potential applications in various rechargeable batteries.
Article
Chemistry, Multidisciplinary
Bo Han, Lixiang Zhong, Cailing Chen, Jie Ding, Carmen Lee, Jiawei Liu, Mengxin Chen, Shuen Tso, Yue Hu, Chade Lv, Yu Han, Bin Liu, Qingyu Yan
Summary: Main group element-based materials, specifically aluminum-based defective metal-organic frameworks (MOFs), show promising capabilities as electrocatalysts for sustainable ammonia production via electrochemical nitrogen reduction reaction (N2RR) under ambient conditions. Defective aluminum sites in the aluminum-fumarate (Al-Fum) MOF play a crucial role in promoting N2RR activity. The defective Al-Fum exhibits stable and efficient electrochemical N2RR, with a high production rate of 53.9 μg(NH3) h(-1)mg(cat)(-1) and a Faradaic efficiency of 73.8% under ambient conditions.
Article
Chemistry, Multidisciplinary
Huaming Yu, Dongping Chen, Xuyan Ni, Piao Qing, Chunshuang Yan, Weifeng Wei, Jianmin Ma, Xiaobo Ji, Yuejiao Chen, Libao Chen
Summary: In this study, l-carnitine (l-CN) is proposed as an efficient additive to stabilize both electrodes and extend the lifespan of aqueous Zn-ion batteries. The simultaneous presence of quaternary ammonium cations, COO- anions, and hydroxyl groups in a trace amount of added l-CN has a significant impact on the behavior of Zn2+ deposition/insertion and water molecule activity. The addition of l-CN leads to ultralong life in the symmetric cell with an 87-fold improvement in cycle life (over 6000 h, 1 mA cm(-2)/1 mA h cm(-2)) for dendrite-free Zn plating/stripping and enables the Zn//V2O5 full cell to achieve 3500 cycles with a high capacity retention.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Physical
Xiaoyi Li, Jianfeng Huang, Zixuan Liu, Qian Chen, Guanjun Chen, Yifei Zhang, Koji Kajiyoshi, Yong Zhao, Yijun Liu, Liyun Cao, Liangliang Feng
Summary: This study presents a zinc-doped CoP nanosheet catalyst (Zn-CoP/CF) with a three-dimensional array structure grown in situ on a cobalt foam substrate, which effectively improves the electrocatalytic overall water splitting performance.
CATALYSIS SCIENCE & TECHNOLOGY
(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, Applied
Fengyang Jing, Chade Lv, Liangliang Xu, Yaru Shang, Jian Pei, Pin Song, Yuanheng Wang, Gang Chen, Chunshuang Yan
Summary: Aqueous zinc ion batteries (ZIBs) have gained attention due to their low cost and high safety. However, traditional manganese oxide cathode materials face challenges such as low electronic conductivity, slow ions diffusion kinetics, and structural collapse. In this study, a hollow nanocube cathode material derived from Prussian blue analogue precursor was developed, which has amorphous nature, allowing for better ions and electrons transport kinetics and preventing structural collapse.
JOURNAL OF ENERGY CHEMISTRY
(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)