Issue 38, 2021

A facile synthesis of Ni0.85Se@Cu2−xSe nanorods as high-performance supercapacitor electrode materials

Abstract

Transition-metal selenides are regarded as promising electrode materials due to their superior electrochemical performances for supercapacitors. In this study, a nanorod-like hybrid of Ni0.85Se@Cu2−xSe on a Ni-foam substrate is successfully synthesized via a facile one-step route. The Ni0.85Se@Cu2−xSe nanorods are found to be deposited uniformly on the Ni-form substrates. When used as a battery-type electrode in a supercapacitor, the as-deposited Ni0.85Se@Cu2−xSe electrode exhibits a high specific capacity of 1831 F g−1 at 1 A g−1 and 78.4% of capacitance retention after 8000 cycles at 10 A g−1. Moreover, the assembled Ni0.85Se@Cu2−xSe//AC asymmetric supercapacitor (ASC) exhibits an energy density of 63.2 W h kg−1 at a power density of 800.1 W kg−1, as well as good cycling stability (92.1% capacitance retention after 5000 cycles).

Graphical abstract: A facile synthesis of Ni0.85Se@Cu2−xSe nanorods as high-performance supercapacitor electrode materials

Supplementary files

Article information

Article type
Paper
Submitted
02 Jul 2021
Accepted
20 Aug 2021
First published
25 Aug 2021

Dalton Trans., 2021,50, 13543-13553

A facile synthesis of Ni0.85Se@Cu2−xSe nanorods as high-performance supercapacitor electrode materials

S. Liu, R. Wang, Q. Wang, Q. Tian and X. Cui, Dalton Trans., 2021, 50, 13543 DOI: 10.1039/D1DT02199K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements