Ni/Co bimetallic organic framework nanosheet assemblies for high-performance electrochemical energy storage. Issue 19 (6th May 2020)

• Record Type: Journal Article
• Authors: Chi, Yao; Yang, Wenping; Xing, Yichen; Li, Yan; Pang, Huan; Xu, Qiang
• Is Part Of: Nanoscale. Volume 12:Issue 19(2020)
• Page Start: 10685
• Page End: 10692
• Publication Date: 2020-05-06
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/d0nr02016h
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : Multilayer NiCo-MOF nanosheet assemblies hold great potential as an electrode material for EES equipment. A facile one-pot synthesis procedure, high capacity and stable performance are prominent features of multilayer NiCo-MOF materials. 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.