Article
Chemistry, Physical
He Wang, Chenhong Liu, Xiaoli Yang, Jiali Gu, Mengyuan Niu, Lin Yang, Zhengyu Bai
Summary: In this study, a CoFe2O4-NC electrocatalyst with excellent ORR activity and long-term stability was synthesized through the incorporation of CoFe2O4 nanoparticles in N-doped carbon nanotubes. The obtained electrocatalyst outperformed previously reported catalysts with a higher half-wave potential and continuous cycling. This work opens up a new direction for the development of low-cost and efficient ORR electrocatalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Haiyun Fan, Tao Wang, Hao Gong, Cheng Jiang, Zhipeng Sun, Manman Zhao, Li Song, Jianping He
Summary: Heteroatoms doped carbon nanotubes prepared through a solid-state pyrolytic conversion strategy show increased defects in the carbon plane due to effective introduction of sulfur, leading to improved oxygen reduction reaction (ORR) activity. The resultant catalyst exhibits remarkable half-wave potential and durability, outperforming traditional Pt/C catalyst, with high peak power density and excellent rate capability in zinc-air batteries.
Article
Chemistry, Physical
Jin Zhang, Lu Bai, Chun Jin, Mingyue Xiao, Jingjun Liu
Summary: Fe-N-C catalysts are promising candidates to replace platinum group metal catalysts in proton exchange membrane fuel cells. However, their activity still lags behind commercial Pt/C catalysts. In this study, we propose a method to enhance the intrinsic activity of Fe-N-C catalysts by introducing active sites with ketone functional groups. A self-supporting interpenetrating network catalyst composed of carbon nanotubes and carbon nanoparticles is synthesized, which features abundant ketone functional groups. Density functional theory results confirm that ketone groups can enhance the oxygen reduction reaction activity of FeN4 active sites. This offers a new approach to improve the activity of Fe-N-C catalysts co-doped with oxygen and nitrogen in acidic systems.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Green & Sustainable Science & Technology
Y. Li, R. Zhang, Y. Cheng, H. Tang
Summary: The presence of iron phthalocyanine significantly enhances the electron transfer in the oxygen evolution/reduction reaction (OER/ORR) and carbon dioxide reduction reaction (CO2RR), leading to lower overpotentials and faster reaction kinetics. The highly redox flexible FePc acts as an electron pool to quickly exchange electrons with the ultrafine NiOx nanoclusters, providing fast electron transfer during the electrochemical catalytic process.
MATERIALS TODAY SUSTAINABILITY
(2022)
Article
Chemistry, Physical
Eirini Zagoraiou, Fotios Paloukis, Maria K. Daletou
Summary: This study utilized oxpyMWCNT functionalized with pyridine groups as a support to develop Pt supported catalysts, examining the impact of different metal loadings. It was found that using this support allowed for small particle size and homogeneous dispersion, affecting the correlation between properties and electrocatalytic activity.
APPLIED SURFACE SCIENCE
(2021)
Article
Energy & Fuels
Qian Liu, Dan Yu, Chunhui Zhang, Faming Gao
Summary: For the first time, researchers have synthesized quinary PtPdNiAuCu nanotubes and quaternary PtPdNiCu NTs, PtPdCu NTs, and used them as low-platinum-content oxygen reduction reaction catalysts in fuel cells. The quinary nanotubes exhibited higher mass activity and better endurance compared to the quaternary nanotubes and commercial Pt/C.
Review
Chemistry, Multidisciplinary
N. Limani, A. Boudet, N. Blanchard, B. Jousselme, R. Cornut
Summary: The article discusses the importance of developing renewable energy sources for a sustainable modern society in the face of the world energy crisis. It focuses on the role of scanning probe microscopy in researching electrocatalysts and energy materials, with an emphasis on progress in non-noble electrocatalytic materials.
Article
Chemistry, Multidisciplinary
Fanfan Ni, Yuanyuan Ma, Junliang Chen, Wei Luo, Jianping Yang
Summary: Boron-iron nanochains (B-Fe NCs) serve as efficient catalysts for nitrate reduction reaction (NRR) with unique advantages in optimizing NRR catalytic performance, showing promising potential for broad applications.
CHINESE CHEMICAL LETTERS
(2021)
Article
Chemistry, Physical
Sakshi Gautam, Sachin Chugh, Byron D. Gates
Summary: Low concentrations of surfactants were used as templates during Pt electrodeposition to synthesize high-surface-area multifaceted Pt nanoparticles. The electrochemical active surface area (A (ecsa)) and activity for the oxygen reduction reaction (ORR) were evaluated. The use of surfactants as templates during electrodeposition led to an increase in A (ecsa) and mass activity of the Pt nanostructures.
ACS APPLIED ENERGY MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Liyuan Xiao, Zhenlu Wang, Jingqi Guan
Summary: This paper provides a detailed review of the topological structure design and synthesis methods of covalent organic frameworks (COFs), and analyzes their design principles. It also summarizes the applications of COFs and their derivatives in the field of electrocatalysis, and proposes optimization strategies. Finally, it explores the application prospects and challenges of COFs and their derivatives in electrocatalysis, providing guidance for future research.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Chemistry, Inorganic & Nuclear
Kayode Adesina Adegoke, Nobanathi Wendy Maxakato
Summary: This study presents recent advancements in the application of porous metal oxide electrocatalysts for energy conversion technologies. It discusses the evolution of porous material sciences, the importance of oxides in electrocatalysis, and the synthesis and analysis techniques for porous metal oxides. Additionally, it summarizes the fundamental concepts, mechanisms, performances, challenges, and prospects of different energy conversion technologies, emphasizing the critical role of oxygen defects.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Jesus Cebollada, David Sebastian, Maria Jesus Lazaro, Maria Victoria Martinez-Huerta
Summary: In this study, porous N-doped carbon nanocomposites (NC) were prepared by combining mussel-inspired polydopamine (PDA) chemistry and transition metals using a solvothermal carbonization strategy. The complexation between dopamine catechol groups and transition metal ions resulted in hybrid structures with embedded metal nanoparticles. Cu, Co, Mn, and Fe N-doped carbon nanocomposites showed efficient catalytic activity and excellent stability toward ORR. The N-doped carbon layers protected the metal nanoparticles, further enhancing the ORR performance of the composites.
Article
Environmental Sciences
J. X. Flores-Lasluisa, D. Salinas-Torres, M. Lopez-Ramon, C. Moreno-Castilla, M. A. Alvarez, E. Morallon, D. Cazorla-Amoros
Summary: The study showed that the calcination temperature of the synthesized MnFe2O4 solid nanospheres significantly influenced their electrocatalytic properties, while the presence of manganese species played a key role in the oxygen reduction reaction activity. Among the tested materials, MSN200/CB and MSN350/CB showed the best electrochemical performances and outstanding stability.
ENVIRONMENTAL RESEARCH
(2022)
Review
Materials Science, Multidisciplinary
Da Sol Jeong, Hyeon Suk Shin, Jieun Yang
Summary: The demand for new catalysts for renewable energy production is crucial, and metal-phthalocyanine (MPc) electrocatalysts have shown potential as alternatives. Understanding the structural effects on the electrochemical catalysis of MPcs is important.
SCIENCE CHINA-MATERIALS
(2022)
Review
Chemistry, Inorganic & Nuclear
Liyuan Xiao, Zhenlu Wang, Jingqi Guan
Summary: Metal organic frameworks (MOFs) are promising electrocatalysts due to their high porosity, large specific surface area, and adjustable structure. This article summarizes the synthesis strategies of 2D MOFs and their derivatives, as well as the factors influencing the geometries and electronic structures of active sites. The electrocatalytic applications of 2D MOFs and their derivatives in various reactions are reviewed, and the effect of geometric construction and electronic configuration on electrocatalytic performance is discussed. Finally, the development prospects and challenges of 2D MOFs and their derivatives are proposed.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Chemistry, Applied
Zi-Xin Ge, Yu Ding, Tian-Jiao Wang, Feng Shi, Pu-Jun Jin, Pei Chen, Bin He, Shi-Bin Yin, Yu Chen
Summary: The research presents a facile pyrolysis strategy to synthesize high-quality holey platinum nanotubes and enhances their catalytic activity for formic acid electrooxidation and hydrogen evolution reactions through modification. A two-electrode FAEOR boosted water electrolysis system is constructed using these modified catalysts, achieving energy-saving and efficient production of pure hydrogen.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Yue Zhao, Zi-Han Yuan, Jiang-Tao Huang, Ming-Yao Wang, Bin He, Yu Ding, Pu-Jun Jin, Yu Chen
Summary: A Rh metallene-supported Pt nanoparticle electrocatalyst with ultra-small Pt nanoparticles uniformly attached to the Rh surface was successfully synthesized. Pt/Rhlene exhibited a 3.60-fold Pt-mass activity enhancement for the ethylene glycol oxidation reaction compared with commercial Pt black, and maintained high stability and excellent poisoning-tolerance during electrocatalysis, thanks to the specific physical/chemical properties of Rhlene. The superior electrocatalytic performance of Pt/Rhlene may pave the way for synthesizing other metallene-supported noble metal nanoparticle hybrids for various electrocatalytic applications.
Article
Materials Science, Multidisciplinary
Qi Xue, Zixin Ge, Zihan Yuan, Jiangtao Huang, Bin He, Yu Chen
Summary: A one-dimensional Au core@AuPt0.20Rh0.08 alloy shell nanowires (Au@AuPt0.20Rh0.08 CS-NWs) with long aspect ratio and cross-linked network architecture were synthesized, showing excellent electrocatalytic performance for ethanol oxidation reaction. The trimetallic synergistic effect between Au, Pt, and Rh atoms was responsible for the higher peak current density, better resistance to CO poisoning, and more lasting stability of Au@AuPt0.20Rh0.08 CS-NWs compared with Au@AuPt0.28CS-NWs and commercial Pt black electrocatalyst.
MATERIALS TODAY PHYSICS
(2023)
Article
Engineering, Environmental
Xiao-Hui Wang, Ze-Nong Zhang, Zhe Wang, Yu Ding, Quan-Guo Zhai, Yu-Cheng Jiang, Shu-Ni Li, Yu Chen
Summary: A handy template-post phosphatization approach is used to prepare ultra-thin CoNi0.2P nanosheets attached to nickel foam, which exhibit high electroactivity for hydrogen evolution reaction and glycol oxidation reaction. This work expands the territory for energy-saving co-generation of hydrogen and value-added chemical products.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Xuhui Li, Yanpin Liu, Haifei Xu, Yangfan Zhou, Xinbing Chen, Zhongwei An, Yu Chen, Pei Chen
Summary: Highly efficient bifunctional catalysts for ORR and OER are essential for rechargeable Zn-air batteries. In this study, Fe3O4 and CoO nanoparticles were integrated into carbon nanoflowers to create an electrocatalyst that reduced the potential gap between ORR and OER to 0.79 V. The Zn-air battery assembled with this catalyst exhibited superior performance compared to Pt/C, including a higher open-circuit voltage, longer discharge time, higher specific capacity, and larger power density.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Ze-Nong Zhang, Qing-Ling Hong, Xiao-Hui Wang, Hao Huang, Shu-Ni Li, Yu Chen
Summary: Nitrate is a viable alternative to nitrogen for ammonia production due to its properties of low bond energy, large water-solubility, and high chemical polarity. The electroreduction reaction of nitrate (NO3RR) is an effective and environmentally friendly strategy for nitrate treatment and ammonia production. In this study, Au nanowires decorated ultrathin Co3O4 nanosheets are proposed as an efficient electrocatalyst for nitrate-to-ammonia electroreduction. The nanohybrids achieve a high catalytic performance and an enhanced NH3 yield rate due to the effect of heterostructure and localized surface plasmon resonance (LSPR) property of Au-NWs.
Article
Chemistry, Physical
Xuefang Zhu, Xing Fan, Haiping Lin, Shuni Li, Quanguo Zhai, Yucheng Jiang, Yu Chen
Summary: The electrochemical nitrite reduction reaction provides a sustainable approach for repairing imbalances in the nitrogen cycle. In this study, the combination of electrocatalysis and enzymatic catalysis leads to an efficient and clean process for ammonia production. The reduction of NO2- to NH3 is achieved through an electroenzymatic cascade reaction on a bioconjugate, which utilizes a modified enzyme fixed on carbon nanotubes. The results demonstrate high efficiency and selectivity, making this approach promising for the conversion of nitrite to ammonia.
ADVANCED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Fangcheng Sun, Xinzhu Wang, Dongchuang Wu, Mohamed El-Khouly, Tingan Zheng, Bin Zhang, Yu Chen
Summary: The major disadvantages of MXene with abundant low-valence metal species are poor environmental stability and poor solution processability. The best way to address these problems is to covalently functionalize MXene with highly soluble conjugated polymers. Using 4-bromobenzoyl-functionalized MXene as a template, poly[(9,9-dihexyl9H-fluorene)-alt-(1,4-diethynylbenzene)] (PDFD) polymer chains were grown directly from the MXene surface. The resulting PDFD-MXene showed enhanced solubility, bistable electrical switching, and resistive random access memory (RRAM) performance. It also displayed outstanding environmental stability when exposed to damp air.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Xi-Lai Liu, Yu-Chuan Jiang, Jiang-Tao Huang, Wei Zhong, Bin He, Pu-Jun Jin, Yu Chen
Summary: PdPt bimetallenes are obtained through galvanic replacement reaction and demonstrate significantly enhanced electroactivity for formate oxidation and hydrogen evolution reactions. Inspired by their excellent electroactivity, a two-electrode system is constructed, which achieves hydrogen production at a significantly lower voltage compared to traditional water electrolysis.
Article
Chemistry, Physical
Bo-Qiang Miao, Bin Sun, Tian-Jiao Wang, Feng Shi, Pei Chen, Pu-Jun Jin, Dong-Sheng Li, Fu -Min Li, Yu Chen
Summary: Alkaline direct ethanol fuel cells are future energy technologies with high energy density. However, the lack of robust anodic electrocatalysts limits their energy conversion efficiency. In this study, rhodium-bismuth alloy nanodendrites (RhBi-NDs) are used as efficient and anti-poisoning electrocatalysts for ethanol oxidation reaction (EOR), showing superior electrocatalytic performance with high mass activity, Faradaic efficiency, and stability. The mechanism involves the improvement of oxidation ability and electronic interaction between Bi and Rh, which suppress the undesirable C2 pathway and promote the desired C1 pathway for EOR on RhBi-NDs.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Chemical
Mingxia Yang, Senqing Fan, Jiaojiao Chen, Yu Chen, Chuang Li, Jiaxin Meng, Haijie Qing, Yangchao Liu, Zeyi Xiao
Summary: An electrocatalytic membrane structured reactor (EMSR) with MnO2 catalyst loaded in Ti membrane pores was used for n-propanol oxidation coupled with hydrogen evolution. MnO2@Ti EMSR via flow-through mode significantly enhanced the conversion rate of n-propanol, selectivity of propionic acid, and Faraday efficiency compared to MnO2/Ti membrane with immobilized MnO2. The improved catalytic performance was attributed to enhanced contact and mass transfer. In addition, the cell voltage and energy consumption during n-propanol oxidation coupled with hydrogen evolution were reduced compared to water splitting with oxygen evolution reaction. These findings provide a promising strategy for coproduction of propionic acid and hydrogen.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Jia-Min Huo, Ying Wang, Jiang-Nan Xue, Wen-Yu Yuan, Quan-Guo Zhai, Man-Cheng Hu, Shu-Ni Li, Yu Chen
Summary: The precise design of low-cost, efficient, and definite electrocatalysts is crucial for sustainable renewable energy. This study successfully synthesized M-FeNi layered double hydroxides with excellent urea oxidation reaction performance by tuning the lattice expansion. The introduction of high-valence metal and the hollow structure promoted the formation of active species and mass transport. This research provides a new direction for constructing nanostructures and modulating electronic structures, which has potential implications for the development of auxiliary electrocatalysts.
Article
Chemistry, Applied
Yuling Chen, Yali Wen, Qun Zhou, Lina Shen, Fanghui Du, Pai Peng, Yu Chen, Junwei Zheng
Summary: Pd nanoparticles loaded Co3O4 catalysts (Pd@Co3O4) constructed from zeolitic imidazolate framework-67 (ZIF-67) demonstrate excellent performance and mechanism for the ethanol oxidation reaction, which can provide valuable inspiration for the design of high-performing catalysts.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Physical
Han-Yue Yang, Kai-Yue He, Xuan Ai, Xue Liu, Yun Yang, Shi-Bin Yin, Pu-Jun Jin, Yu Chen
Summary: In this study, pyridine-functionalized silver nanosheets were successfully synthesized as an electrocatalyst for nitrate electroreduction reaction (NO3RR), showing higher activity compared to pure silver catalysts. The modulation of electronic structures using a chemical functionalization strategy provides valuable insights for the rational design of noble metal-based electrocatalysts.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Applied
Qi Xue, Zhe Wang, Yu Ding, Fumin Li, Yu Chen
Summary: Electrocatalysis is a process that is influenced by the interface and the activity of the catalyst relies on the adsorption/desorption behaviors of the reactants/intermediates/products on the active sites. Chemical functionalization of noble metal surfaces with polyamines (PAM) is an effective strategy to tune the electrocatalytic performance of noble metal nanocrystals. This article introduces the PAM-assisted synthesis mechanism of noble metal nanocrystals and describes the effects of adsorbed PAM on various aspects of noble metal-based catalysts, as well as their applications in important reactions.
CHINESE JOURNAL OF CATALYSIS
(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)
