Constructing NiSe2@MoS2 nano-heterostructures on a carbon fiber paper for electrocatalytic oxygen evolution. Issue 43 (6th August 2021)

• Record Type: Journal Article
• Authors: Huang, Yazhou; Huang, Jiacai; Xu, Kunshan; Geng, Ranran
• Is Part Of: RSC advances. Volume 11:Issue 43(2021)
• Page Start: 26928
• Page End: 26936
• Publication Date: 2021-08-06
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d1ra05509g
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Although MoS2 has shown its potential as an electro-catalyst for the oxygen evolution reaction (OER), its research is still insufficient. Abstract : Although MoS2 has shown its potential as an electro-catalyst for the oxygen evolution reaction (OER), its research is still insufficient. In this study, as a novel MoS2 -based heterostructure electro-catalyst for OER, namely NiSe2 @MoS2 nano-heterostructure, was constructed on a carbon fiber paper (CFP) substrate by a simple approach, which includes electrochemical deposition of NiSe2 film and hydrothermal processing of MoS2 film. In addition to a series of observations on the material structure, electrocatalytic OER performance of NiSe2 @MoS2 was fully evaluated and further compared with other MoS2 -based OER electro-catalysts. It exhibits an outstanding catalytic performance with an overpotential η 10 of 267 mV and a Tafel slope of 85 mV dec −1 . Only 6% loss of current density before and after 10 h indicates its excellent durability. The results indicate that the obtained NiSe2 @MoS2 is an excellent OER electro-catalyst and worth exploring as a substitute for noble metal-based materials.