SiOx/C-Ag nanosheets derived from Zintl phase CaSi_(2) via a facile redox reaction for high performance lithium storage

作     者：Jie Xie Lin Sun Yanxiu Liu Xinguo Xi Ruoyu Chen Zhong Jin Jie Xie;Lin Sun;Yanxiu Liu;Xinguo Xi;Ruoyu Chen;Zhong Jin

作者机构：Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and TechnologySchool of Petrochemical EngineeringChangzhou UniversityChangzhou 213164China School of Chemistry and Chemical EngineeringYancheng Institute of TechnologyYancheng 224051China Key Laboratory of Mesoscopic Chmistry of Ministry of Education(MOE)School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2022年第15卷第1期

页      面：395-400页

核心收录：

学科分类：0808[工学-电气工程] 07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the National Key Research and Development Program of China(Nos.2017YFA0208200 and 2016YFB0700600) the Fundamental Research Funds for the Central Universities of China(No.0205-14380219) the National Natural Science Foundation of China(Nos.22022505,51772258,21872069,and 51761135104) the Natural Science Foundation of Jiangsu Province(Nos.BK20181056,BK20180008,and BK20191042) Jiangsu Postdoctoral Science Fundation(No.2020Z258) Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology(No.SKLPST201901) Funding for school-level research projects of Yancheng Institute of Technology(No.xjr2019006) 

主　　题：SiOx anode LIBs redox reaction two-dimensional structure solution synthesis 

摘      要：As one of the high-capacity anodes in lithium-ion batteries(LIBs),silicon oxide(SiOx)has attracted wide attention due to its high theoretical capacity,low cost,and proper working ***,the huge volume change and the intrinsic poor conductivity of SiOx still hinder the practical *** to address the issues is the focus of current *** this work,firstly,hydrogen passivated Si nanosheets(Si6H6)were prepared from Zintl phase CaSi2,then,two-dimensional Ag nanoparticle modified SiOVC nanocomposite was prepared via a facile complex redox reaction between SieH6 and AgN03-aniline complexing *** this design,aniline was served as carbon sources,and Si6H6could be transformed to SiOx by AgN03 in mild solution *** obtained Ag modified SiOVC(SiOx/C-Ag)electrode exhibited high specific capacity(550 mAh·g^(-1)at 0.6 A·g^(-1)),superior rate,and cycling performance when served as anode for LIBs.