Concerted effect of Ni-in and S-out on ReS2 nanostructures towards high-efficiency oxygen evolution reaction

Tapas K Das; Tapan Ping; Manoj Mohapatra; Shahid Anwar; Chinnakonda S Gopinath; Bikash Kumar Jena

doi:10.1039/d1cc07030d

Concerted effect of Ni-in and S-out on ReS₂ nanostructures towards high-efficiency oxygen evolution reaction

Chem Commun (Camb). 2022 Mar 15;58(22):3689-3692. doi: 10.1039/d1cc07030d.

Authors

Tapas K Das¹, Tapan Ping^{1

2}, Manoj Mohapatra^{3

4}, Shahid Anwar¹, Chinnakonda S Gopinath⁵, Bikash Kumar Jena^{1

2}

Affiliations

¹ Materials Chemistry Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar, Odisha, 751013, India. bikash@immt.res.in.
² Academy of Scientific & Innovative Research, Ghaziabad, 201002, India.
³ Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India.
⁴ Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India.
⁵ Catalysis and Inorganic Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune, 411008, India.

PMID: 35226012
DOI: 10.1039/d1cc07030d

Abstract

Herein, a one-step hydrothermal reaction is developed to synthesize a Ni-doped ReS₂ nanostructure with sulphur defects. The material exhibited excellent OER activity with a current density of 10 mA cm^-2 at an overpotential of 270 mV, a low Tafel slope of 31 mV dec^-1, and good long-term durability of 10 h in 1 M KOH. It shows high faradaic efficiency of 96%, benefiting from the rapid charge transfer caused by the concerted effect of Ni-in and S-out on the ReS₂ nanostructure.