• 文献标题:   Zn-Ce based bimetallic organic frameworks derived ZnSe/CeO2 nanoparticles encapsulated by reduced graphene oxide for enhanced sodium-ion and lithium-ion storage
  • 文献类型:   Article
  • 作  者:   DONG CF, ZHOU YL, LIU W, DU W, ZHANG XT, SUN XQ, KANG LT, ZHANG XY, JIANG FY
  • 作者关键词:   bimetallic organic framework, znse/ceo2/rgo, sodium ion batterie, lithium ion storage, long cycle life
  • 出版物名称:   JOURNAL OF ALLOYS COMPOUNDS
  • ISSN:   0925-8388 EI 1873-4669
  • 通讯作者地址:  
  • 被引频次:   8
  • DOI:   10.1016/j.jallcom.2021.159903 EA MAY 2021
  • 出版年:   2021

▎ 摘  要

Metal organic frameworks (MOFs) are used to derive inorganic material, which is an effective way to achieve high performance electrode materials for sodium-ion batteries (SIBs) and lithium ion batteries (LIBs). In this work, a novel orthorhombic bimetallic organic framework, [ZnCe(L-7)center dot 2H(2)O]n (termed as ZnCeL, L= 5-aminoisophthalic acid) with 3D open framework was synthesized via a simple solvothermal reaction. Then ZnSe/CeO2/RGO was successfully fabricated via pyrolysis and selenization of ZnCeL and graphene oxide (RGO) composites. In the hybrid, ZnSe with high theoretical specific capacity and CeO2 with electrocatalytic property are wrapped by conductive RGO. Herein, ZnSe/CeO2/RGO displays excellent sodium and lithium-storage performances. It reveals a sodium storage capacity of 113.2 mAh g(-1) after 2000 cycles at 2.0 A g(-1). Meanwhile, ZnSe/CeO2/RGO as an anode for LIBs delivers a reversible capacity of 675 mAh g(-1) at 0.1 A g(-1) after 200 cycles. The electrochemical kinetic analysis reveals that the redox reactions are dominated by pseudocapacitive behavior. The excellent performance reveals a bright prospect of the bimetallic organic frameworks derived inorganic material for energy storage. (C) 2021 Elsevier B.V. All rights reserved.