First Author:Hongna Jia

Correspondence Author:Hong-bin Sun

Co author:Yao Wang,Shuya Zhao,Haipeng Wang,Na Ju,Xinyue Zhang,Hong Li,Zejun Sun

Journal:Nanotechnology

Issue:8

Volume:34

Impact Factor:2.9

DOI number:10.1088/1361-6528/aca4d5

Affiliation of Author(s):Department of Chemistry, Tsinghua University

Teaching and Research Group:物理化学

Place of Publication:ENGLAND

Abstract: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.

Key Words:sodium-ion batterieslithium-ion batteriesMOFs derived carbonanode materialsFeNi- doped ZIF-8

Document Code:WOS:000893732600001

Discipline:Natural Science

First-Level Discipline:Chemistry

Page Number:085401

ISSN No.:0957-4484

Translation or Not:no