Article
Materials Science, Ceramics
Jieming Chen, Xiaojuan Chen, Ning Li, Yunqing Liang, Chunmu Yu, Liang Yao, Yiqi Lai, Yaole Huang, Hefeng Chen, Yuxiang Chen, Zijian Fan
Summary: This study successfully designed a series of La1-xSrxCoO3/Ag3PO4 photocatalysts, which significantly enhanced the photocatalytic performance by Sr doping and creating more oxygen vacancies. The optimal degradation performance for TC was achieved when x = 0.9.
CERAMICS INTERNATIONAL
(2021)
Article
Environmental Sciences
Yang Liu, Zhuofeng Hu, Jimmy C. Yu
Summary: Doping S into the lattice of BiOBr to synthesize S-BiOBr significantly enhances the degradation efficiency and kinetic constant for the visible-light-driven degradation of ibuprofen. This is attributed to the band structure tuning by S-doping, leading to higher visible light utilization efficiency. OH radicals play a synergistic role with holes in the degradation process on S-BiOBr, which is more efficient than the reported single hole- or superoxide-dominant reactions.
Article
Chemistry, Physical
Hongbo Xiao, Pengyun Liu, Wei Wang, Ran Ran, Wei Zhou, Zongping Shao
Summary: In this study, silver-doped and moderately reduced Sr2TiO4 photocatalysts were synthesized, showing improved morphological characteristics and enhanced hydrogen generation performance.
MATERIALS TODAY ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Ping Yan, Tao Yang, Minxi Lin, Yanan Guo, Zipeng Qi, Qiquan Luo, Xin-Yao Yu
Summary: A novel beta-Ni(OH)2/Ni-Ru SAs heterostructured nanosheet array is developed through plasma activation and Ru single atoms doping, which greatly enhances the HER activity of Ni(OH)2. The heterostructure exhibits low overpotential and small Tafel slope in alkaline solution, and also demonstrates excellent HER performance in alkaline seawater and neutral solutions. The plasma activation and Ru SAs doping play important roles in enhancing water adsorption and accelerating the kinetics of water dissociation.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Jian-Xiang Mao, Ji-Chao Wang, Huiling Gao, Weina Shi, Hai-Peng Jiang, Yuxia Hou, Renlong Li, Wanqing Zhang, Lu Liu
Summary: This study successfully synthesized a series of Step-scheme CuBi2O4/Na doped P25 photocatalysts and demonstrated their efficient performance in hydrogen evolution. The heterojunction structure and S-scheme carrier transfer mechanism were proven to be effective in achieving high photocatalytic activity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Green & Sustainable Science & Technology
Xuanpu Wang, Youji Li, Teng Li, Zhiliang Jin
Summary: This research demonstrates the excellent photocatalytic hydrogen evolution capability of a composite bimetallic sulfide ZnCo2S4 and CdS. The synergistic effect of zinc ions and cobalt ions enriches the redox-active sites, improving the hydrogen production efficiency of the catalyst. The experimental results show that the hydrogen evolution amount of the composite catalyst is 10 times that of single CdS, and the catalyst exhibits good stability. The apparent quantum efficiency of the composite catalyst with the best hydrogen evolution activity reaches 17.96%. This work provides a feasible method for expanding the application of CdS in the field of photocatalytic hydrogen evolution.
ADVANCED SUSTAINABLE SYSTEMS
(2023)
Article
Chemistry, Multidisciplinary
Wei Guan, Lin Zhang, Peng Wang, Ying Wang, Haoyu Wang, Xingchen Dong, Ming Meng, Lina Sui, Zhixing Gan, Lifeng Dong, Liyan Yu
Summary: Doping impure atoms or introducing crystal defects can enhance the photocatalytic activity of semiconductors. In this study, a molybdenum-doped thin ZnIn2S4 material was prepared using a one-pot solvothermal method, in which the coordination of Mo doping and S vacancies enhanced visible light absorption, facilitated the separation of photogenerated carriers, and provided active sites for photocatalytic reactions. The optimized Mo-doped Sv-ZnIn2S4 exhibited a significantly higher hydrogen evolution rate compared to the original ZnIn2S4, demonstrating a new strategy for developing efficient 2D atomic photocatalysts for hydrogen evolution.
Article
Chemistry, Physical
Xibao Li, Bangbang Kang, Fan Dong, Zhiqiang Zhang, Xudong Luo, Lu Han, Juntong Huang, Zhijun Feng, Zhi Chen, Jilin Xu, Biaolin Peng, Zhong Lin Wang
Summary: This work successfully prepared a novel S-scheme heterojunction composite using a solvent evaporation induced self-assembly method, exhibiting excellent photocatalytic performance. By adjusting the composite ratios, the electron migration and free radical generation were effectively enhanced.
Article
Chemistry, Multidisciplinary
Hongye Qin, Yukun Ye, Jinhong Li, Wenqi Jia, Siyu Zheng, Xuejie Cao, Guangliang Lin, Lifang Jiao
Summary: Nickel hydroxide has been identified as a promising electrocatalyst for urea oxidation reaction. By doping vanadium and creating oxygen vacancies, the catalyst's activity is enhanced by increasing the number of active sites and lowering the energy barrier for the reaction.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Yuanyuan Li, Shengli Zhu, Yanqin Liang, Zhaoyang Li, Shuilin Wu, Chuntao Chang, Shuiyuan Luo, Zhenduo Cui
Summary: The doping effect of Mo and S on the photocatalytic hydrogen generation activity of g-C3N4 under visible light irradiation was investigated in this study. By using a simple one-step heating technology, Mo and S co-doped porous g-C3N4 nanosheets were successfully prepared, showing efficient photocatalytic activity and stability.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Zhao Mo, Zhihuan Miao, Pengcheng Yan, Peipei Sun, Guanyu Wu, Xingwang Zhu, Cheng Ding, Qiang Zhu, Yucheng Lei, Hui Xu
Summary: The ideal photocatalyst for photocatalytic water splitting should have strong light absorption, fast charge separation/transfer ability, and abundant active sites. Heteroatom doping offers a promising approach for optimizing photocatalytic activity. In this study, boron (B) and sulfur (S) dopants were simultaneously introduced into graphitic carbon nitride (g-C3N4) nanotubes using a supramolecular self-assembly strategy. The developed B and S co-doped g-C3N4 nanotubes exhibited outstanding photocatalytic performance, achieving a conversion rate of H2O to H-2 of 9.321 mmol g(-1)h(-1), with an external quantum efficiency of 5.3% under irradiation at λ = 420 nm. The introduction of B dopants facilitated H2O adsorption and interatomic electron transfer, while S dopants promoted the oxidation ability of g-C3N4 and inhibited recombination. Furthermore, the simultaneous introduction of B and S optimized the electronic and energy level structures of g-C3N4 for efficient charge transfer, ultimately maximizing photocatalytic performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Environmental
Dingren Ma, Liu Yang, Zhongyi Sheng, Yang Chen
Summary: Doping with sodium and inducing oxygen vacancies have significantly improved the photocatalytic performance of ZnWO4. The synergistic effects of doping and vacancies enhance the adsorption and activation of reactants, leading to an increased rate of benzene oxidation.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Z. G. Tai, G. T. Sun, X. H. Zhang, X. B. Yang, T. Wang, Z. Y. Fang, Q. Ye, L. C. Jia, H. Q. Wang
Summary: CdTe nanocrystals are embedded into ultrathin ZnIn2S4 nanosheets to construct ZnIn2S4/CdTe heterostructures, which exhibit excellent catalytic activity. The enhancement is attributed to nanoscale heterojunctions and sulfur vacancies, promoting charge separation and facilitating the H2 generation reaction. The research provides new insights into the regulation of charge transfer through embedding nanocrystals.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Siyi Li, Yushu Wang, Jingchao Wang, Chin Ho Kirk, Haimei Wang, Jianguo Sun, Yu Liu, Binbin Liu, Tianyong Zhang, Shuang Jiang, John Wang, Bin Li
Summary: The S-scheme heterojunction between co-doped g-C3N4 and W18O49 enhances the photocatalytic performance and electron transfer by utilizing the SPR effect and internal electric field. The COCN-W18O49 composite shows significantly improved degradation and hydrogen evolution performance compared to GCN, COCN, and W18O49.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Lin Liu, Jiaqing Liu, Weijie Yang, Jun Wan, Feng Fu, Danjun Wang
Summary: The ZIS-S/CNTs/RP nanocomposite, fabricated using an energy band alignment steering strategy, exhibited superior photocatalytic H-2 evolution performance due to efficient photogenerated electron-hole separation and Z-scheme charge transfer mechanism.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Zirong Shen, Zehua Luo, Junying Chen, Yingwei Li
Summary: Using few-layered nanosheet-assembled hierarchical BiOBr nanotubes with rich oxygen vacancies (OVs) as efficient photocatalysts, the simultaneous study of charge transfer and energy transfer steps in a photoexcitation process is proposed. The optimized BiOBr photocatalyst shows improved charge carrier separation and transfer, as well as enhanced exciton generation, resulting in high efficiency for photocatalytic CO2 reduction. The dominant reactive oxygen species, singlet oxygen (O-1(2)), is identified for the first time as originating from an energy transfer process, while the minor effect of superoxide anion radical (O-center dot(2)-) is observed in the photocatalytic aerobic oxidation of sulfides.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jianmin Chen, Yajing Wang, Fengliang Wang, Yingwei Li
Summary: Controllable product selectivity in CO2 hydrogenation is achieved by light-induced switching of reaction pathways over Co decorated Pt@UiO-66-NH2. With light irradiation, the main product CO is switched to CH3OH via the formate pathway, resulting in a significantly higher space-time yield of CH3OH. Mechanism investigation reveals that excited UiO-66-NH2 can transfer electrons to Pt nanoparticles and Co sites, promoting the CO2-to-*HCOO conversion and suppressing the reverse water gas shift (RWGS) pathway.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Chenghong Hu, Yue Zhang, Anqian Hu, Yajing Wang, Xiaoming Wei, Kui Shen, Liyu Chen, Yingwei Li
Summary: A strategy of synergistically near- and long-range regulation is reported to effectively modulate the electronic structure of single-atom sites. ZnN4S1/P-HC exhibits excellent performance for CO2 reduction reaction (CO2RR) with a Faraday efficiency of CO close to 100%. The coupling of CO2RR with hydrazine oxidation reaction in a two-electrode electrolyzer can greatly lower the cell voltage, theoretically saving 46% of energy consumption.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Wen Yao, Anqian Hu, Jieting Ding, Nanshu Wang, Ze Qin, Xianfeng Yang, Kui Shen, Liyu Chen, Yingwei Li
Summary: An etching-functionalization strategy was developed to construct a tannic-acid-functionalized MOF with a unique hollow-wall and 3D-ordered macroporous structure. This MOF can be further used as a precursor for the synthesis of cobalt supported on oxygen/nitrogen co-doped carbon composites with H-3DOM structures and hydrophilic surface. The resulting catalyst exhibits high electrocatalytic activity in the oxygen reduction reaction.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yu Xin, Kui Shen, Tongtian Guo, Liyu Chen, Yingwei Li
Summary: This study explores the use of a metal-organic framework templated pyrolysis strategy to prepare cobalt/nitrogen-codoped carbon nanosheet arrays on carbon cloth as efficient and low-cost bifunctional electrocatalysts for seawater electrolysis. The optimized electrocatalyst shows remarkable reduction in energy consumption and prevents undesired anodic corrosion caused by chlorine oxidation reaction. It achieves high efficiency in hydrazine-assisted water electrolysis system for hydrogen production.
Article
Chemistry, Physical
Yajing Wang, Jianmin Chen, Liyu Chen, Yingwei Li
Summary: This study reports the design of ZrO2-anchored dual-atom Pt-Ni pairs for the reverse water-gas-shift (RWGS) reaction. The dual-atom material achieves a CO selectivity of 99.8% and a space-time yield of 157.2 mu molCO g(cat)(-1) s(-1) at atmospheric pressure. Theoretical calculations show that the dual-atom Pt-Ni pairs can direct the dual electronic transfer paths to efficiently activate CO2 in the RWGS reaction and enable facile desorption of the CO product.
Article
Chemistry, Physical
Ze Qin, Liyu Chen, Yingwei Li, Kui Shen
Summary: Researchers have synthesized a bifunctional catalyst with core-shell distributed ZrO2 and Co nanoparticles, which can catalyze the one-pot tandem reaction of nitroarenes with CO2 to form formamides. The catalyst exhibits high yield and good recyclability, providing valuable insights for the design of efficient catalysts for tandem CO2 fixation reactions.
Article
Chemistry, Physical
Yang Chen, Jiafeng Wu, Yingwei Li
Summary: Stepwise electrocatalytic strategy of catalysis-immobilization-deposition is proposed to achieve the consistency of diffusion and catalysis of polysulfides. A sandwich-like stepwise electrocatalyst composed of Co nanoparticles, mesoporous SiO2, and iron single atom is designed as the catalysis core, immobilization interlayer, and deposition shell, respectively. The S/Co-NP@SiO2@Fe-SA cathode delivers high reversible capacity and areal capacity, shedding light on a new host design concept for high-performance lithium-sulfur batteries.
Article
Chemistry, Multidisciplinary
Jieting Ding, Danyu Guo, Nanshu Wang, Hao-Fan Wang, Xianfeng Yang, Kui Shen, Liyu Chen, Yingwei Li
Summary: This study reports a defect engineering strategy to facilitate the structural transformation of MOFs to metal oxyhydroxides during OER, resulting in enhanced activity. Defective MOFs with abundant unsaturated metal sites are constructed, which can be more easily transformed to metal oxyhydroxides compared to non-defective MOFs. Furthermore, the metal oxyhydroxides derived from defective MOFs exhibit more oxygen vacancies, which greatly improve the OER activity.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Dongwen Guo, Kai Jiang, Hui Gan, Yanwei Ren, Jinxing Long, Yingwei Li, Biaolin Yin
Summary: Developing well-defined structures and desired properties for porous organic polymer (POP) supported catalysts by controlling their composition, size, and morphology is of great significance. Herein, we report a preparation of polyaniline (PANI) supported Pd nanoparticles (NPs) with controllable structure and morphology. The Pd/PANI catalysts with different charge transfer properties between Pd and PANI, as well as different dispersions of the metal NPs, greatly improve the turnover frequency (TOF) in the reductive coupling of furfural derivatives to potential bio-based plasticizers.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Wenyuan Lyu, Yang Liu, Jingyi Zhou, Datong Chen, Xin Zhao, Ruiqi Fang, Fengliang Wang, Yingwei Li
Summary: Photocatalytic conversion of low-concentration CO2 is a promising way to address environmental and energy issues. In this study, oxygen vacancy contained Co3O4 hollow nanoparticles were designed and fabricated to enhance the conversion of low-concentration CO2. By breaking the local structural symmetry and creating asymmetric active sites, the binding and structural polarization of CO2 molecules were improved, leading to unprecedented activity under laboratory light source or natural sunlight.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Chemical
Xin Zhao, Ruiqi Fang, Fengliang Wang, Zirong Shen, Xianfeng Yang, Xiang-Peng Kong, Yingwei Li
Summary: A novel defect-induced strategy is used to fabricate Cu single-atom sites with unsaturated coordination configurations. Cu is stabilized using polyvinyl pyrrolidone and pores are generated in adjacent areas. The Cu atoms are distributed on C2 sites at the edge of pores in carbon support. The Cu1C2 moiety with unsaturated coordination configurations exhibits superior catalytic performance in the oxidative coupling reaction.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Xin Zhao, Ruiqi Fang, Fengliang Wang, Yingwei Li
Summary: A newly developed precise locating carbonization strategy is reported for the fabrication of 21 kinds of dual-metal single-atom catalysts with N, S co-coordinated configurations. The CoN3S1/CuN4@NC catalyst shows remarkable performance in O-2 activation and enables a spontaneous process through its dynamic configuration, significantly outperforming the CoN4/CuN4@NC and CoN3S1@NC counterparts. Hence, CoN3S1/CuN4@NC exhibits attractive performance in the domino synthesis of natural flavone and 19 kinds of derivatives.
Article
Chemistry, Physical
Jiafeng Wu, Yuanyi Feng, Yang Chen, Ting Fan, Yingwei Li
Summary: In this study, a dual-metal Zn-Co single-atom catalyst loaded on a double-shelled nitrogen-doped carbon material is designed to enable efficient confinement and catalytic conversion of lithium polysulfides. The catalyst exhibits a synergistic effect of dual-redox sites and an ingenious double-shelled structure, effectively reducing the energy barrier and diffusion of polysulfides compared to single-component counterparts. When used as a sulfur host, the catalyst shows satisfactory sulfur electrochemistry, including excellent reversible performance and superior areal capacity.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Xin Zhao, Ruiqi Fang, Fengliang Wang, Xiangpeng Kong, Yingwei Li
Summary: A versatile complexation-deposition strategy was demonstrated for the synthesis of 13 kinds of dual-metal single-atom (SA) site pairs with uniform and exclusive coordination configurations. The CuN4/CoN2P2 site pairs exhibited significantly enhanced catalytic activity and selectivity in the synthesis of natural flavonoids, attributed to the unsymmetrical electron distribution over the sites.