第一作者：Hang Geng

通讯作者：  Junli Xu

合写作者：Zhaoshun Liu , Hongbin Sun, Zhongning Shi

发表刊物：Materials Today Chemistry

卷号：34

影响因子：6.7

DOI码：10.1016/j.mtchem.2023.101798

所属单位：Department of Chemistry, Tsinghua University

教研室：物理化学

刊物所在地：ENGLAND

摘要：Defect engineering has been regarded as an effective strategy to enhance the electrochemical capacitance of supercapacitors. In this work, we report an effective strategy to promote the formation of defects along with the surface reconstruction of NiFeCo-layered double hydroxide (LDH) by W doping and a successive in-situ electrochemical activation process. Our results reveal that the surface of NiFeCoW-LDH is reconstructed at high potential, which promotes the generation of vacancy and dislocation in NiFeCoW-LDH. The electrochemical activated NiFeCoW-LDH exhibits a capacitance as high as 12.35 F cm−2 at the current density of 5 mA cm−2 in 1 mol L−1 KOH. The defects and the surface nanoneedles structure synergistically contribute to the enhanced electrochemical performance. This work proposes a promising strategy for the design of rich defective electrodes along with surface reconstruction.

论文编号：WOS:001111371600001

学科门类：理学

一级学科：化学

页面范围：101798

ISSN号：2468-5194

是否译文：否