Reduced Na-S bond adsorption of WSSe enabling fast reaction kinetics in the sodium-ion battery  

作　　者：Ya-Ning Liao Yan-Ling Yang Xiao-Lei Shi Yu Sun Chao-Zheng He Yi Qin Li Zhang Yue-Feng Chen Zhi-Gang Chen 

机构地区：[1]School of Materials Science and Engineering,Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials,Shaanxi University of Science and Technology,Xi’an 710021,Shaanxi,China [2]School of Chemistry and Physics,ARC Research Hub in Zero-emission Power Generation for Carbon Neutrality,and Centre for Materials Science,Queensland University of Technology,Brisbane,Queensland 4000,Australia [3]College of Engineering and Applied Sciences,Jiangsu Key Laboratory of Artificial Functional Materials,National Laboratory of Solid-State Microstructures,Collaborative Innovation Centre of Advanced Microstructures,Nanjing University,Nanjing 210093,Jiangsu,China [4]Institute of Environmental and Energy Catalysis,School of Materials Science and Chemical Engineering,Xi’an Technological University,Xi’an 710021,Shaanxi,China

出　　处：《Journal of Energy Chemistry》2025年第3期609-617,共9页能源化学(英文版)

基　　金：financially supported by the Key R&D Plan of Shaanxi Province(Grant No.2023-YBGY-492);financial support from the Australian Research Council;the QUT Capacity Building Professor Program。

摘　　要：WS_(2),a two-dimensional layered material,is promising as sodium-ion batteries(SIBs)anode due to its large lnterlamellar spacing and high sodium storage capacity.However,its low electronic conductivity and high Na^(+)adsorption energy hinder reaction kinetics.Here we demonstrate that substituting Se for part of the S in WS_(2)reduces interlayer Na^(+)adsorption and increases electronic conductivity.Based on this finding,lamellar WSSe,grown in situ on peanut shell-derived carbon(PSDC/WSSe),is elaborately designed as a highly stable SIB anode with a fast kinetic.PSDC/WSSe with carbon matrix and Se substitution simultaneously provides fast electron transport channels and lowered Na^(+)transport barriers(0.22 eV).The PSDC/WSSe anode offers a considerable reversible sodium storage capacity(288.0 mAh g^(-1)after 1000 cycles at 1.0 A g^(-1))and a fast kinetic reaction.A SIB full-cell using a PSDC/WSSe anode and Na_(3)V_(2)(PO_(4))_(3)cathode achieves a 215.4 Wh kg^(-1)high energy density,and successfully powers LEDs.This work offers new strategies to lower sodium ion transportation barrier in two-dimensional layered materials.

关 键 词：Sodium-ion batteries Two-dimensional materials WSSe WS2 Peanut shell-derived carbon 

分 类 号：TM912[电气工程—电力电子与电力传动]