第一作者：Hongna Jia

通讯作者：Hong-bin Sun

合写作者：Yao Wang,Shuya Zhao,Haipeng Wang,Na Ju,Xinyue Zhang,Hong Li,Zejun Sun

发表刊物：Nanotechnology

期号：8

卷号：34

影响因子：2.9

DOI码：10.1088/1361-6528/aca4d5

所属单位：Department of Chemistry, Tsinghua University

教研室：物理化学

刊物所在地：ENGLAND

摘要：Carbon materials derived from metal-organic frameworks have attracted increasing attention as anodes for energy storage. In this study, Fe, Ni-doped ZIF-8 is carbonized at high temperature to obtain bimetallic Fe and Ni modified tension -relaxed carbon (FeNi@trC). Fe and Ni have opposite structural modification effects when the metal ions are doped into the ZIF-8 dodecahedron. The obtained carbon material maintains the regular dodecahedron morphology, which means the relaxation of tension and strong thermal stability during annealing. Moreover, the presence of nickel enhances the carbonization degree and electrochemical stability of FeNi@trC, while the calcination of the tensive ZIF-8 precursor offers more defect sites. The discharge capacities of FeNi@trC materials are stable at 182.9 mAh center dot g(-1) and 567.9 mAh center dot g(-1) for sodium-ion batterie (SIB) and lithium-ion batterie (LIB) at 0.05 A center dot g(-1). Compared with the current density of 0.05 A center dot g(-1), the discharge capacity of SIB and LIB attenuates by 29.4% and 55.9% at 1 A center dot g(-1), respectively, and the FeNi@trC shows good performance stability in the following cycles.

关键字：sodium-ion batterieslithium-ion batteriesMOFs derived carbonanode materialsFeNi- doped ZIF-8

论文编号：WOS:000893732600001

学科门类：理学

一级学科：化学

页面范围：085401

ISSN号：0957-4484

是否译文：否