Oxygen functional groups modified amorphous hollow carbon bowls for pseudocapacitive Zn-ion storage  

作　　者：Gongxun Yu Fenghui Yang Xu Han Qiongyao Song Jiangtao Zheng Ying Qi Tianming Chen Qian Shen Jingxia Qiu Sheng Li 

机构地区：[1]Key Laboratory of Flexible Electronics(KLOFE)and Institute of Advanced Materials(IAM),Nanjing Tech University(NanjingTech).Nanjing 211816,China [2]School of Physical and Mathematical Sciences,Nanjing Tech University(NanjingTech).Nanjing 211816,China [3]Institute for Energy Research,JiangsuUniversity,Zhenjiang 212013,China

出　　处：《Chinese Chemical Letters》2023年第12期392-395,共4页中国化学快报（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.22075109,22279056);the Jiangsu Provincial Department of Science and Technology(No.BK20220010).

摘　　要：Carbon is a promising capacitive electrode material for Zn-ion hybrid supercapacitors(ZHSCs),as it is low-cost,environmentally friendly,controllable and adjustable.By now,achieving both high energy and high power with carbon electrodes is still challenging,limited by their intrinsic properties.In this work,we have designed and presented an amorphous hollow carbon bowl material with surface chemical modifications of oxygen groups to figure out these concerns.The preparation of bowl-like structures and the storage behavior between Zn^(2+)and oxygen functional groups have also been discussed.With the contributions from its unique hollow structure and surface functional groups,it can significantly enhance the electrode pseudocapacitance and the entire electrochemical performance.

关 键 词：Zn-ionhybrid supercapacitors Hollowcarbon bowls Oxygen groups Pseudocapacitance Zn-ion storage 

分 类 号：TM53[电气工程—电器] TQ127.11[化学工程—无机化工]