Article
Chemistry, Applied
Xin Zhang, Jingyun Jiang, Hao Li
Summary: By tuning the crystal structure of ZrO2 support, the Pd/ZrO2 catalysts exhibited excellent efficiency in vanillin hydrodeoxygenation (HDO), achieving approximately 100% yield of 2-methoxy-4-methylphenol (MMP) under mild conditions. The catalyst with ZS3 support showed the best performance due to the catalytic synergy of exposed metal active sites, oxygen vacancies, and acid sites.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Vinod K. Paidi, Byoung-Hoon Lee, Docheon Ahn, Ki-Jeong Kim, Younghak Kim, Taeghwan Hyeon, Kug-Seung Lee
Summary: Oxygen vacancies significantly alter the Ti local symmetry of TiO2 nanocrystals, affecting the electronic structure. The distorted Ti local symmetry at the surface exists in two forms (D-2d and C-3v), suggesting promising opportunities for structural design of TiO2 nanocrystals.
Article
Chemistry, Physical
Yingdong Zhou, Li Liu, Guiying Li, Changwei Hu
Summary: In the study, it was found that Co/mix-ZrO2 catalyst showed the highest activity and stability for methyl laurate hydrogenation, with the oxygen vacancies and exposed Co crystal planes playing important roles in influencing the reaction.
Article
Chemistry, Inorganic & Nuclear
Guobing Hu, Mengzhu Shi, Wenxiang Wang, Changsheng Zhu, Zeliang Sun, Jianhua Cui, Weizhuang Zhuo, Fanghang Yu, Xigang Luo, Xianhui Chen
Summary: Researchers have synthesized a new layered heterostructure [(Fe,Al)(OH)(2)][FeSe](1.2), opening a new path for exploring superconductivity in iron-based superconductors. After lithiation process, this superconductor exhibits a critical temperature of 40K.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Yi Zhou, Wenbiao Zhang, Jialai Hu, Dan Li, Xing Yin, Qingsheng Gao
Summary: The ultrathin Ni-Fe layered-double-hydroxides (LDH) with inherent oxygen vacancies (VO) were successfully fabricated via coprecipitation, achieving low overpotential during oxygen evolution reaction (OER) in potassium hydroxide solution. The presence of VO was experimentally and theoretically proven to boost surface reconstruction and enhance OER activity, highlighting the correlation between electrocatalysis and both the catalyst's surface and bulk properties.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Yuan Huang, Li Zhang, Li-Wen Jiang, Xiao-Long Liu, Ting Tan, Hong Liu, Jian-Jun Wang
Summary: This study reports a highly efficient pre-electrocatalyst of iron diselenide with phosphorus doping (P-FeSe2) for oxygen evolution reaction (OER). The phosphorus-doped Se vacancies can modulate the electronic structure of FeSe2 and facilitate OER kinetics, resulting in enhanced electrical conductivity and electrochemical surface area. The in situ formed FeOOH species on the surface of P-FeSe2 nanorods acts as an active component for OER and exhibits low overpotential, leading to the high potential of the fabricated electrocatalyst for various reactions.
Article
Nanoscience & Nanotechnology
Yu Sun, Qiao Wang, Zhongyuan Liu
Summary: This study proposes a novel and facile method to synthesize controllable thin-layered Co3O4 catalysts with graphene as a conductive matrix, enhancing overall N2 fixation performance. The sandwiched Co3O4-x/GO catalysts show exposed coordination unsaturated active sites and numerous oxygen vacancies, leading to excellent electrochemical NRR activity. The introduction of oxygen vacancies in thin-layered cobalt oxides increases the density of states near the Fermi level, accelerating the rate-determining step of the NRR. The sandwiched Co3O4-x/GO catalyst also exhibits low overpotential and outstanding durability for the anode OER.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Guolang Zhou, Xiaoliang Gao, Shizheng Wen, Xinglong Wu, Lili Zhang, Tianshi Wang, Pusu Zhao, Jingzhou Yin, Wenshuai Zhu
Summary: In this study, ultrathin CoNiMg-LDH nanosheets with abundant oxygen vacancies were synthesized, and superior performance in supercapacitors was achieved. This highlights the positive role of magnesium in regulating oxygen vacancies.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Xue-Wen Wu, Shao-Lun Cui, Sheng Liu, Guo-Ran Li, Xue-Ping Gao
Summary: The use of anodic aluminum oxide (AAO) membranes to create highly ordered channels on the metallic lithium anode surface can prevent dendritic lithium deposition, thus improving the cycling performance of lithium batteries.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Multidisciplinary Sciences
Panlong Zhai, Mingyue Xia, Yunzhen Wu, Guanghui Zhang, Junfeng Gao, Bo Zhang, Shuyan Cao, Yanting Zhang, Zhuwei Li, Zhaozhong Fan, Chen Wang, Xiaomeng Zhang, Jeffrey T. Miller, Licheng Sun, Jungang Hou
Summary: Rational design of single atom catalyst is critical for efficient sustainable energy conversion. Single-atomic-site ruthenium stabilized on defective nickel-iron layered double hydroxide nanosheets achieve superior HER and OER performance in alkaline media.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Keyu Wang, Haolan Tao, Chen Liang, Shiyi Li, Yulin Wu, Yixing Wang, Linzhou Zhuang, Cheng Lian, Honglai Liu, Zhi Xu
Summary: This study demonstrates the production of efficient NiFe-based OER electrocatalysts with enhanced mass transfer ability through an argon plasma-engraving strategy, resulting in significantly improved OER catalytic performance in alkaline solution.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Junchuan Yao, Fangqing Wang, Wenjun He, Ying Li, Limin Liang, Qiuyan Hao, Hui Liu
Summary: High-entropy layered double hydroxides (HE-LDHs) are promising electrocatalysts for OER due to their high-entropy effect and the cocktail effect. However, their catalytic activity and stability are still unsatisfactory. In this study, we designed FeCoNiCuZn LDHs with rich cation vacancies, which exhibited low overpotentials and excellent stability. DFT calculations confirmed that the cation vacancies enhanced the intrinsic activity of HE-LDHs by optimizing the adsorption energy of OER intermediates.
CHEMICAL COMMUNICATIONS
(2023)
Article
Optics
Yuehong Peng, Liang Xu, Jincai Peng, Tianhui Wang, Qi Wang, Yongjin Li, Zhaoyi Yin, Jin Han, Jianbei Qiu, Zhengwen Yang, Zhiguo Song
Summary: In this study, a Li+ doping strategy is proposed to reduce lattice oxygen vacancy (OV) defects in Bi2GdO4Cl:Yb3+/Er3+ crystals, resulting in enhanced upconversion emission and improved photocatalytic activity.
JOURNAL OF LUMINESCENCE
(2022)
Article
Electrochemistry
Zechuan Huang, Shiqi Liu, Jianying Li, Shaomin Li, Gen Zhang, Zhao Li, Hao Liu
Summary: This study designs a moderate amount of oxygen vacancies to enhance the performance of lithium-ion capacitors and successfully prepares the OV-MnO2/rGO material. In half cells, this material shows good specific capacity and cyclic performance. Asymmetric lithium-ion capacitors assembled with this material exhibit ultrahigh energy density, excellent power density, and stable cycling performance.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
Lifan Wang, Guicheng Liu, Rui Wang, Xindong Wang, Liguang Wang, Zhenpeng Yao, Chun Zhan, Jun Lu
Summary: By introducing dual-ion conductors, the reactivity of surface lattice oxygen ions in high-active anionic oxides can be effectively controlled, suppressing oxygen release, irreversible phase transition, and intergranular mechanical cracking. The dual-ion conductor also facilitates lithium-ion diffusion kinetics and electronic conductivity, achieving a balance between capacity and stability for high-energy cathodes.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Zhengcheng Ye, Lang Qiu, Wen Yang, Zhenguo Wu, Yuxia Liu, Gongke Wang, Yang Song, Benhe Zhong, Xiaodong Guo
Summary: This review delves into the electrochemical performance and fading mechanisms of nickel-rich layered transition metal oxide cathodes, summarizes the recent research progress in improving materials through element doping, surface modification, and structure tuning, and proposes new insights to expand the field and promote practical applications of nickel-rich oxides.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Hao Liu, Ruikai Yang, Wen Yang, Changjiang Bai, Yong-Chun Li, Gongke Wang, Yuxia Liu, Wei Xiang, Zhenguo Wu, Xiaodong Guo
Summary: In this study, a novel strategy was proposed to modify the Ni-rich cathode LiNi(0.8)Co(0.1)Mn(0.1)O(2) with uniform Al and Ti cations co-doping, which effectively stabilized the vulnerable structure and mitigated voltage/capacity attenuation. The modified cathode showed significantly enhanced electrochemical performance, with improved discharge capacity and voltage retention after 200 cycles, even at elevated voltages.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Chemistry, Applied
Daqiang Wang, Zhenguo Wu, Wei Xiang, Yuxia Liu, Gongke Wang, Kanghui Hu, Qi Xu, Yang Song, Xiaodong Guo
Summary: The introduction of spinel phase to form the layered-spinel structure has been shown to improve the electrochemical performance of Li- and Mn-rich layered oxides, with high capacity and retention achieved in low-Ni systems but reduced capacity retention in high-Ni systems. The study provides guidance for optimizing element proportions and structure design for these materials.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Physical
Liwen Yang, Yuan Li, Yang Wang, Qian Li, Yanxiao Chen, Benhe Zhong, Xiaodong Guo, Zhenguo Wu, Yuxia Liu, Gongke Wang, Yang Song, Wei Xiang, Yanjun Zhong
Summary: Shuttle effect, a core issue in lithium-sulfur batteries, was alleviated by the designed nitrogen-doped vanadium dioxide material originating from a metal-organic framework. The material exhibited excellent electrochemical performance and significantly reduced capacity degradation after 500 cycles, showing promising potential for lithium-sulfur batteries.
JOURNAL OF POWER SOURCES
(2021)
Article
Materials Science, Multidisciplinary
Li-Min Zhu, Guo-Chun Ding, Qing Han, Yong-Xia Miao, Xin Li, Xin-Li Yang, Lei Chen, Gong-Ke Wang, Ling-Ling Xie, Xiao-Yu Cao
Summary: Salinization of tetrahydroxyquinone (THBQ) to ortho-disodium salt (o-Na(2)THBQ) improves its electrochemical properties by reducing dissolution and enhancing stability. In various electrolytes, o-Na(2)THBQ cathodes exhibit good reversible discharge capacities and stability, showing promise for application in sodium-ion and lithium-ion batteries.
Article
Chemistry, Multidisciplinary
Zhiwei Yang, Chen Wu, Shi Li, Lang Qiu, Zuguang Yang, Yanjun Zhong, Benhe Zhong, Yang Song, Gongke Wang, Yuxia Liu, Zhenguo Wu, Xiaodong Guo
Summary: Stress failure and continued growth of the solid electrolyte interface are the main factors contributing to the failure of lithium-ion batteries with silicon (Si) anode. A core-shell gradient porous structure with a high-strength core and a high-porosity shell is proposed to address these issues, improving the stability and cycling performance of Si-based anode materials.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Review
Chemistry, Physical
Tao Zhou, Limin Zhu, Lingling Xie, Qing Han, Xinli Yang, Lei Chen, Gongke Wang, Xiaoyu Cao
Summary: Despite the advantages of LIBs, ZIBs are attracting attention as a promising alternative due to their low cost, high safety, and high synergistic efficiency. However, current cathode materials for ZIBs have shortcomings, necessitating the search for materials to improve battery performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Jinjun Tian, Zhenghai Shi, Gongke Wang
Summary: In this study, the binding interaction between silver nanoparticles and human serum albumin was investigated. The results showed that the interaction is driven by entropy, leading to conformational changes in the protein and a decrease in alpha-helix content. Additionally, the binding followed pseudo-second-order kinetics and fit the Freundlich model for multilayer adsorption.
Article
Energy & Fuels
Xiangjian Meng, Jiaxin Liu, Gongke Wang, Jingyang Fang
Summary: This paper proposes a three-input central capacitor dc/dc converter for high-voltage PV systems, which achieves maximum power point tracking and balanced DC voltage by cascaded buck-boost converters and energy transfer regulation, thereby improving the energy yield and efficiency of PV plants.
FRONTIERS IN ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Jiuli Chang, Wenfang Liang, Wenyu Wang, Dapeng Wu, Kai Jiang, Gongke Wang, Fang Xu, Zhiyong Gao
Summary: In this study, oxygen vacancy-enriched Bi2O3 was prepared as the negative material for aqueous alkaline batteries, improving the energy and power densities of the batteries and demonstrating the potential of oxygen vacancy-enriched Bi2O3 in battery-type energy storage.
APPLIED SURFACE SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Gongke Wang, Yumeng Chen, Shaohui Yuan, Peng Ge
Summary: This study designs hollow spheres with suitable thickness shell as hosting materials for Na-S systems, filled with active S4 molecules through vacuum tube sealing technology. The results show that this design effectively avoids the generation of intermediate products, improving the cycle life and capacity of the battery.
Article
Chemistry, Physical
Hua Lv, Yuanfang Kong, Zhiyuan Gong, JinZe Zheng, Yumin Liu, Gongke Wang
Summary: This study developed a Mn0.5Cd0.5S catalyst with dual cocatalysts, which improved the photocatalytic water splitting performance by reducing the reaction energy barrier and suppressing charge recombination. The results showed that the Mn0.5Cd0.5S/CB/CuS hierarchical multiheterojunction catalyst exhibited excellent hydrogen generation efficiency and stability under simulated solar light irradiation.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Applied
Gongke Wang, Yumeng Chen, Yu Han, Lixue Yang, Wenqing Zhao, Changrui Chen, Zihao Zeng, Shuya Lei, Shaohui Yuan, Peng Ge
Summary: Na-Se batteries with Se electrodes have been studied for their high energy density and conductivity. However, their sluggish kinetic behaviors and S-electrode-like shuttling effects remain challenges. This study proposes a strategy to address these issues by loading Se material onto uniform hollow carbon spheres, resulting in optimized pore distribution, enhanced electron-moving behaviors, and activated Se electrodes. The resulting cathodes demonstrate promising capacity performance and stability, with potential implications for advanced Na-Se batteries.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Spectroscopy
Yonghui Xuan, Xiang Li, Changling Yan, Gongke Wang
Summary: Due to the complexity and cost of traditional methods for detecting heavy metal pollution in water, there is a need for rapid and simple methods. In this study, a nanobiosensor based on molybdenum disulphide (MoS2) nanosheets and fluorophore labeled oligonucleotides was proposed for detecting Hg2+ or Ag+ ions in water using fluorescence spectroscopy. The sensor works by forming stable double-stranded DNA (dsDNA) structures through the mismatching of single-stranded DNA (ssDNA) rich in thymine (T) or cytosine (C) with Hg2+ or Ag+. The sensor showed high sensitivity and selectivity, with minimum detection limits of 6.8 nM and 8.9 nM for Hg2+ and Ag+ ions, respectively.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
