Issue 19, 2020

Ni/Co bimetallic organic framework nanosheet assemblies for high-performance electrochemical energy storage

Abstract

Nickel–cobalt organic framework (denoted as NiCo-MOF) nanosheet assemblies are prepared through a controllable one-pot hydrothermal synthesis procedure at 150 °C. The as-prepared samples are directly employed as electrode materials for electrochemical energy storage (EES), and exhibit excellent electrochemical performance. Among these samples, NiCo-MOF-1 displays a high capacity of 100.18 mA h g−1 (901.60 F g−1), and obtains a capacity retention of 81.00% over 3000 cycles at 5 A g−1. Likewise, in an aqueous device, NiCo-MOF-1//AC delivers a discharge capacity of 83.75 mA h g−1, and also exhibits a good cycling life (74.14% retention after 3000 cycles). These results demonstrate that multilayer NiCo-MOF nanosheet assemblies are potential electrode materials for EES.

Graphical abstract: Ni/Co bimetallic organic framework nanosheet assemblies for high-performance electrochemical energy storage

Supplementary files

Article information

Article type
Paper
Submitted
11 mar 2020
Accepted
22 apr 2020
First published
23 apr 2020

Nanoscale, 2020,12, 10685-10692

Ni/Co bimetallic organic framework nanosheet assemblies for high-performance electrochemical energy storage

Y. Chi, W. Yang, Y. Xing, Y. Li, H. Pang and Q. Xu, Nanoscale, 2020, 12, 10685 DOI: 10.1039/D0NR02016H

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