Chaoyi Yan
University of Electronic Science and Technology of China
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Publication
Featured researches published by Chaoyi Yan.
Advanced Materials | 2018
Jianwen Huang; Yinghui Sun; Yadong Zhang; Guifu Zou; Chaoyi Yan; Shan Cong; Tianyu Lei; Xiao Dai; Jun Guo; Ruifeng Lu; Yanrong Li; Jie Xiong
High-performance electrocatalysts are desired for electrochemical energy conversion, especially in the field of water splitting. Here, a new member of phosphate electrocatalysts, nickel metaphosphate (Ni2 P4 O12 ) nanocrystals, is reported, exhibiting low overpotential of 270 mV to generate the current density of 10 mA cm-2 and a superior catalytic durability of 100 h. It is worth noting that Ni2 P4 O12 electrocatalyst has remarkable oxygen evolution performance operating in basic media. Further experimental and theoretical analyses demonstrate that N dopant boosts the catalytic performance of Ni2 P4 O12 due to optimizing the surface electronic structure for better charge transfer and decreasing the adsorption energy for the oxygenic intermediates.
Small | 2018
Xiaohui Zhao; Min Deng; Gaofeng Rao; Yichao Yan; Chunyang Wu; Yu Jiao; Anqing Deng; Chaoyi Yan; Jianwen Huang; Songhao Wu; Wei Chen; Tianyu Lei; Ping Xu; Weidong He; Jie Xiong
Cu nanocrystals of various shapes are synthesized via a universal, eco-friendly, and facile colloidal method on Al substrates using hexadecylamine (HDA) as a capping agent and glucose as a reductant. By tuning the concentration of the capping agent, hierarchical 3D Cu nanocrystals show pronounced surface-enhanced Raman scattering (SERS) through the concentrated hot spots at the sharp tips and gaps due to the unique 3D structure and the resulting plasmonic couplings. Intriguingly, 3D sword-shaped Cu crystals have the highest enhancement factor (EF) because of their relatively uniform size distribution and alignment. This work opens new pathways for efficiently realizing morphology control for Cu nanocrystals as highly efficient SERS platforms.
Advanced Materials | 2018
Jianwen Huang; Yinghui Sun; Xinchuan Du; Yadong Zhang; Chunyang Wu; Chaoyi Yan; Yichao Yan; Guifu Zou; Wenqi Wu; Ruifeng Lu; Yanrong Li; Jie Xiong
Surface/interface design is one of the most significant and promising motivations to develop high-performance catalysts for electrolytic water splitting. Here, the nature of cytomembrane having the most effective and functional surface structure is mimicked to fabricate a new configuration of Ni-N-O porous interface nanoparticles (NiNO INPs) with strongly interacting nanointerface between the Ni3 N and NiO domains, for enhancing the electrocatalytic oxygen evolution reaction (OER) performance. The combination of transmission electron microscopy and electrochemical investigations, tracking the correlation between microstructure evolution and catalytic activity, demonstrate the strongly coupled nanointerface for an approximately sixfold improvement of electrolytic efficiency. Density functional theory simulates the electrocatalytic process with a maximum of 85% reduction of the energy barrier. Further investigations find that the real active site for the OER in the NiNO INPs is the strongly coupled Ni-N-O nanointerface, not the derived amorphous hydroxide, during the OER process. The determination of the correlation of constructed nanointerface with catalytic properties suggests a significant strategy toward the rational design of catalysts for efficient water electrocatalysis.
Advanced Energy Materials | 2017
Tianyu Lei; Wei Chen; Jianwen Huang; Chaoyi Yan; Haoxuan Sun; Chao Wang; Wanli Zhang; Yanrong Li; Jie Xiong
Advanced Functional Materials | 2017
Junwei Chu; Fengmei Wang; Lei Yin; Le Lei; Chaoyi Yan; Feng Wang; Yao Wen; Zhenxing Wang; Chao Jiang; Liping Feng; Jie Xiong; Yanrong Li; Jun He
Advanced Functional Materials | 2017
Chaoyi Yan; Lin Gan; Xing Zhou; Jun Guo; Wenjuan Huang; Jianwen Huang; Bao Jin; Jie Xiong; Tianyou Zhai; Yanrong Li
Advanced Functional Materials | 2018
Chuanhui Gong; Kai Hu; Xuepeng Wang; Peihua Wangyang; Chaoyi Yan; Junwei Chu; Min Liao; Liping Dai; Tianyou Zhai; Chao Wang; Liang Li; Jie Xiong
Joule | 2018
Tianyu Lei; Wei Chen; Weiqiang Lv; Jianwen Huang; Jian Zhu; Junwei Chu; Chaoyi Yan; Chunyang Wu; Yichao Yan; Weidong He; Jie Xiong; Yanrong Li; Chenglin Yan; John B. Goodenough; Xiangfeng Duan
Angewandte Chemie | 2018
Xinchuan Du; Jianwen Huang; Junjun Zhang; Yichao Yan; Chunyang Wu; Yin Hu; Chaoyi Yan; Tianyu Lei; Wei Chen; Cong Fan; Jie Xiong
Advanced Optical Materials | 2018
Peihua Wangyang; Chuanhui Gong; Gaofeng Rao; Kai Hu; Xuepeng Wang; Chaoyi Yan; Liping Dai; Chunyang Wu; Jie Xiong