Article
Chemistry, Physical
Kejie Zhang, Zhen Mou, Shihai Cao, Shuang Wu, Xueting Xu, Caolong Li
Summary: Heterojunction photocatalysts containing CdS and NiS nanoparticles were synthesized, and the photocatalytic H2 evolution rate of the obtained NiS/CdS composite was 39.42 times higher than that of pure CdS.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Environmental
Wangyang Ma, Dewen Zheng, Bihua Xiao, Yuxi Xian, Qian Zhang, Shanyu Wang, Jin Liu, Ping Wang, Xianhai Hu
Summary: Cocatalyst plays a crucial role in enhancing the efficiency of photocatalytic water decomposition for hydrogen production. In this study, a novel Ni2P/CdS photocatalyst was synthesized through a modified impregnation method, and it was found that the addition of Ni2P significantly improved the photocatalytic activity and stability of Ni2P/CdS.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Tiantian Cao, Jingjing Xu, Mindong Chen
Summary: In this study, MoSx/CdS/KTaO3 ternary heterojunction photocatalysts were successfully prepared, and their photocatalytic hydrogen production activity was improved. The optimized photocatalyst exhibited a high rate of hydrogen evolution under visible light and showed good stability. This research provides beneficial insights for efficiently utilizing sunlight to decompose water for hydrogen production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Yuqing Hu, Puhui Deng, Wenying Wang, Linping Zhang, Yu Hou
Summary: Element doping and collaboration with other cocatalysts are important strategies to improve CdS's photoelectrochemical properties. In this study, manganese cadmium sulfides (MnxCd1-xS) were synthesized by a solvothermal method. The Mn0.5Cd0.5S sample showed the best photocatalytic hydrogen production, and further enhancement was achieved by coupling Ni-POMs as cocatalysts. The highest efficiency was observed for 15-Ni-4-Mn0.5Cd0.5S, which formed a double type-II heterojunction.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Lu Chen, Feng Chen, Shaoming Ying, Ruowen Liang, Guiyang Yan, Xuxu Wang, Yuzhou Xia
Summary: In this study, a WC@C cocatalyst was prepared and successfully enhanced the photocatalytic hydrogen evolution rate of CdS nanorods. The WC@C/CdS composite photocatalyst with a 7 wt% content of WC@C exhibited excellent photocatalytic performance with high hydrogen evolution rate and apparent quantum efficiency, as well as good stability in continuous cycling experiments.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Wen-Xiong Shi, Zhi-Yong Liu, Zhi-Ming Zhang
Summary: Photocatalytic splitting of water for hydrogen production is a potential solution for environmental pollution and the energy crisis. By microwave synthesis, H3PMo12O40 (PMo12) can serve as a co-catalyst with CdS nanosheets to form a well-designed composite photocatalyst without the need for precious metals. The small loading of PMo12 (1.8% Mo) exhibits highly efficient photocatalytic performance, achieving a maximum hydrogen production six times higher than that of isolated CdS nanosheets. XPS analysis confirms the charge transfer process, where PMo12 accelerates the separation of photogenerated carriers, shortens the charge transfer distance, and substantially enhances the efficiency and stability of water cleavage to hydrogen. This combination of polyoxometalates and CdS has promising applications in sustainable solar energy utilization strategies.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Xiaolei Liu, Qingzhe Zhang, Yong Wang, Chen Wang, Guolong Song, Dongling Ma
Summary: In this study, a photocatalyst with multi-interfacial charge transfer was developed, achieving both broadband H2 production and high activity through optimizing the photoinduced interfacial charge transfer at the CdS/CuS interface and the synergistic effect of NiS cocatalyst for H2 production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Jiakun Wu, Bowen Sun, Hui Wang, Yanyan Li, Ying Zuo, Wenjing Wang, Haifeng Lin, Shaoxiang Li, Lei Wang
Summary: The unique 2D tandem heterojunction constructed in this study demonstrates efficient electron transfer channels for spatial separation and directional migration of photo-induced charge carriers, along with exceptional light harvesting capacity and abundant active sites, achieving outstanding photocatalytic H-2 evolution activity.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Materials Science, Multidisciplinary
Renqian Jiang, Xiaoyan Cai, Xiuquan Gu, Ding Yang, Junying Zhang, Yulong Zhao, Liang Mao
Summary: Sulfur vacancies were successfully introduced into the ZnIn2S4 lattice through plasma etching and annealing in this work, leading to enhanced photocatalytic performance. Plasma etching showed a better effect on improving the hydrogen evolution reaction of ZIS compared to annealing, despite the latter producing more sulfur vacancies.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Yuchao Yao, Xiaoxi Ni, Dongyan Xu, Xiaojin Li
Summary: Structural and morphological modulations are crucial for increasing the surface active sites of semiconductor photocatalysts. In this study, a novel CdS/Ni3S4/Ni2P@C heterostructure was fabricated by preparing carbon-encapsulated Ni3S4/Ni2P with a high surface area. The assembly of CdS nanowires and highly porous Ni3S4/Ni2P@C enhanced the visible-light response capability of the catalyst. The hydrogen production rate of the heterostructure catalyst was 26 times higher than that of CdS alone in a photolytic aquatic hydrogen system.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Qingru Zeng, Lin Zheng, Longfei Wang, Yiming Liu, Qingguo Yu, Toyohisa Fujita, Deqian Zeng
Summary: Co2P/ZnSe composites were synthesized through a solvothermal method and exhibited efficient H-2 production via photocatalytic water splitting. The excellent performance of these composites can be attributed to the intimate interfaces formed by the in-situ growth of ultrafine Co2P onto ZnSe, as well as the cocatalytic role of Co2P in promoting charge separation and transfer. This work provides valuable insights into the preparation and photocatalytic mechanism of ZnSe anchored with metal phosphide, which can be extended to other solar energy conversion systems.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Hao Zhang, Hongjie Zhu, Haitao Zhao, Mingyu Dou, Xingliang Yin, Hua Yang, Dacheng Li, Jianmin Dou
Summary: Photocatalytic water splitting for hydrogen production has been a research hotspot in recent years. Cobalt-based molecular cocatalysts for proton reduction have attracted wide attention due to their high activity and selectivity. In this study, CdS nanorods were used as photosensitizers and a novel dinuclear cobalt-bis(thiosemicarbazone) complex was used as a cocatalyst to achieve efficient visible-light-driven hydrogen evolution. The proposed three-component system exhibited significant hydrogen evolution with a high quantum yield.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Wenjing Wang, Teng Hou, Jiakun Wu, Hanchu Chen, Hui Wang, Yan-Yan Li, Shao-Xiang Li, Haifeng Lin, Lei Wang
Summary: The construction of hollow NiCo2S4@ZnS/CdS heterostructures demonstrated significantly enhanced photocatalytic performance for visible-light driven hydrogen production. The unique architecture with uniform microspheres and tunable composition coating layer showcased excellent catalytic activity and stability, attributed to efficient charge transfer and numerous active sites.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Chemistry, Multidisciplinary
Congrong Lu, Shiwen Du, Yanfei Zhao, Qi Wang, Kuankuan Ren, Chunhe Li, Weidong Dou
Summary: The low separation efficiency of photogenerated charges and severe photocorrosion inhibit the application of CdS in photocatalytic water splitting. By decorating CdS nanowires with Ag2S nanoparticles to construct a heterojunction, the photocatalytic performance is significantly improved, with an optimal H-2 evolution rate and enhanced electron transfer. Experimental characterizations and theoretical calculations systematically study the structure, optical properties, and surface chemical state of Ag2S/CdS nanocomposites, demonstrating the acceleration of photoinduced electrons transfer and efficient separation of electron-hole pairs.
Article
Chemistry, Multidisciplinary
Li Huang, Ruchao Gao, Liuying Xiong, Perumal Devaraji, Wei Chen, Xiying Li, Liqun Mao
Summary: The study fabricated 2D/2D sheets of Ni2P/CdS heterostructure for photocatalytic H-2 evolution, demonstrating that Ni2P acted as an excellent cocatalyst providing abundant active sites, significantly improving the separation efficiency of photogenerated electrons and holes.
Article
Chemistry, Physical
Wanan Deng, Yanan Li, Fang Wang, Qingxiang Ma, Shixiong Min
Summary: This study introduces a free-standing cathode Pd@CWM, demonstrating superior electrocatalytic activity and stability for the pH-universal hydrogen evolution reaction, offering a promising design strategy for large-scale clean fuel production.
Article
Energy & Fuels
Mengxia Cui, Fang Wang, Zhengguo Zhang, Shixiong Min
Summary: The porous carbon membrane PECM prepared by direct carbonization of Pleurotus eryngii shows excellent electrochemical performance and can be directly used for supercapacitor assembly, exhibiting high capacitance and cycling stability. This offers new insights into utilizing biomass for the preparation of value-added carbon materials for supercapacitor applications.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Wenjing Li, Fang Wang, Zhengguo Zhang, Shixiong Min
Summary: In this study, a self-supported chainmail electrocatalyst was developed as an advanced air cathode for rechargeable Zn-air batteries. The electrocatalyst exhibited efficient oxygen reduction and oxygen evolution reactions, providing abundant reaction sites. The rechargeable battery assembled with the electrocatalyst demonstrated excellent stability and power density.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Hui Pan, Fang Wang, Shixiong She, Zhengguo Zhang, Shixiong Min
Summary: In this study, an effective strategy for improving the electrocatalytic CO2 reduction reaction (CO2RR) performance of a Zn foil electrode is reported. The oxide-derived and CTAB-modified Zn electrode (OD-Zn-CTAB) prepared by electrochemically reducing the air-annealed Zn foil electrode in the presence of CTAB exhibits high electrocatalytic activity and selectivity for CO production. The greatly enhanced CO2RR performance of OD-Zn-CTAB can be attributed to the increased number of active sites originating from the surface reconstruction and the formation of a favorable CTAB-modified electrode/electrolyte (E/E) interface that can efficiently adsorb and activate CO2 while inhibiting the competitive H-2 evolution reaction.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
Fang Wang, Wenbo Li, Hui Pan, Zhengguo Zhang, Chao Kong, Shixiong Min
Summary: Intermetallic molybdenum disilicide (MoSi2) has been discovered as a novel, active, and durable cocatalyst for efficient photocatalytic H-2 production. It exhibits favorable H-2 evolution kinetics and lower overpotential, outperforming other Mo-based cocatalysts and transition metal disilicides. This study highlights the great potential of transition metal silicides as low-cost and efficient cocatalysts for constructing high-performance photocatalysts/systems for solar energy conversion.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Chemistry, Physical
Zhengguo Zhang, Zhicheng Wei, Fang Wang, Shixiong Min
Summary: In this study, a carbon membrane-based hybrid electrode (Co2P@CTF) is developed by directly carbonizing Co-containing tofu aerogel. The Co species self-phosphorize during carbonization to form highly dispersed carbon-coated Co2P nanoparticles. This hybrid electrode demonstrates high capacitance and cycling stability in supercapacitors.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Multidisciplinary
Tongliang Liu, Fang Wang, Zhengguo Zhang, Shixiong Min
Summary: In this study, it is reported that the biomass-derived lignosulfonate (LS) can act as a quasi-homogenous electron mediator, efficiently promoting the electron transfer from the excited erythrosin B (ErB) to the in situ generated Pt cocatalyst. This enhances the photocatalytic H2 evolution activity by over 10 fold compared to the system without LS.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Fang Wang, Kailu Li, Alkut Anwar, Zhengguo Zhang, Weibing Xu, Shixiong Min
Summary: Instead of considering endogenous Fe in CGS waste as waste, it can be transformed into a supported Fe2P cocatalyst through an in situ exsolution strategy for efficient solar H-2 evolution reaction. The upcycling of endogenous metals from industrial solid wastes into efficient cocatalysts provides a promising means for developing cost-efficient and high-performance photocatalysts/photocatalytic systems for large-scale solar energy conversion.
Article
Chemistry, Physical
Shixiong Min, Huaiyu Chang, Huanhuan Tao, Fang Wang
Summary: A highly defective, self-supported porous carbon membrane (HDPCM) electrode was developed by CO2-assisted thermal etching of carbonized wood. The as-fabricated HDPCM is heteroatom-free and exhibits abundant intrinsic carbon defects, resulting in enhanced CO2 adsorption and activation capability. It showed high efficiency for electrocatalytic CO2-to-CO conversion, with a FECO of 81.1% and a j(CO) of -3.88 mA cm(-2) at -0.66 V versus RHE. After hydrophobic treatment, the HDPCM could be directly used as an integrated gas-diffusion electrode (GDE) in the flow cell, achieving a much enhanced and relatively stable j(CO) (-50 mA cm(-2) at -0.76 V vs. RHE). This work not only provides an effective strategy for creating intrinsic defects on carbon-based electrocatalysts but also offers new insights into the development of integrated metal-free carbon-based GDEs for large-scale CO2 electroreduction.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Huanhuan Tao, Fang Wang, Zhengguo Zhang, Shixiong Min
Summary: Surface N-coordinated Cu catalysts were developed by direct calcination of a sole N-containing Cu-2(OH)(3)NO3 precursor and in situ electroreduction during CO2 electrolysis. The best N-Cu catalyst achieved a CO2-to-ethylene (C2H4) faradaic efficiency (FE) of 73.2% with a partial current density of -700.8 mA cm(-2) at -1.09 V versus the reversible hydrogen electrode (RHE) in a flow cell, outperforming surface N-free Cu catalysts significantly.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Chemistry, Multidisciplinary
Huaiyu Chang, Hui Pan, Fang Wang, Zhengguo Zhang, Yaming Kang, Shixiong Min
Summary: This study reports a self-supported electrode, Ni single atoms supported on hierarchically porous N-doped carbonized wood, which efficiently and stably converts CO2 to CO. The electrode has abundant open microchannels and active sites, leading to a high conversion efficiency of CO2 to CO and potential applications in large-scale CO2 reduction systems.
Article
Chemistry, Inorganic & Nuclear
Fang Wang, Tongliang Liu, Zhaoting Liu, Zhengguo Zhang, Shixiong Min
Summary: This study develops a monolithic cocatalyst by controllably growing Ni2P nanowire arrays on a Ni foam substrate. The monolithic cocatalyst has high specific surface areas, excellent structural integrity, and can provide ample active sites for HER and maximize light utilization efficiency. It also exhibits excellent HER activity and stability, and can be easily separated from the reaction solution.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Physical
Wenfei Dong, Nan Zhang, Sanxiu Li, Shixiong Min, Juan Peng, Wanyi Liu, Dongping Zhan, Hongcun Bai
Summary: The electrocatalytic reduction of CO2 using electricity produced from renewable resources is an effective strategy for reducing CO2 emissions and promoting sustainable energy development. This study successfully synthesized a low Mn-content single-atom catalyst with efficient electrocatalytic performance for the CO2 reduction reaction.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Hui Pan, Fang Wang, Zhengguo Zhang, Shixiong Min
Summary: This study demonstrates the ability to enhance the CO2RR on a Zn foil electrode by directly introducing cationic surfactants with long-alkaryl chains in the electrolyte. The addition of CTAB in the KHCO3 solution significantly improves the CO2RR efficiency, resulting in a higher CO Faradaic efficiency (FECO) and CO current density (j(CO)) compared to the Zn foil electrode without CTAB. The enhanced CO2RR efficiency is attributed to the dynamic adsorption of positively charged long-alkaryl chains on the polarized Zn foil electrode, which promotes the penetration and adsorption of CO2 while suppressing the competing HER. DFT calculations further reveal that the CTAB-modified E/E interface reduces the energy barrier of *CO desorption, enhancing the efficiency of CO2 reduction to CO.
SUSTAINABLE ENERGY & FUELS
(2022)
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)