Issue 19, 2023

Electronic and active site engineering in Rh metallene via phosphorus and sulfur dual-doping for electrocatalytic sulfion recycling and hydrogen generation

Abstract

Coupling the thermodynamically favorable sulfion oxidation reaction (SOR) with the hydrogen evolution reaction (HER) is a promising approach to simultaneously save energy and cost-effectively produce high value-added chemicals and hydrogen. The construction of efficient bifunctional catalysts for SOR–HER electrocatalysis is of significance yet challenging. Here, we propose a dual-nonmetal-doping strategy to construct S and P dual-doped Rh metallene (SP-Rhlene). Benefiting from the combined advantages of dual heteroatom doping and an ultrathin nanosheet structure, SP-Rhlene with a large electrochemical active area and an optimized electronic structure exhibits outstanding HER and SOR activities. A two-electrode system based on optimized SP-Rhlene only needs a cell voltage of 0.385 V at 10 mA cm−2 to generate H2, while transforming S2− into sulfur powder, which further reduces the cost of hydrogen production and protects the ecological environment. This work provides a directive strategy for the rational construction of dual heteroatom doped metallene for energy-saving hydrogen production and environmentally friendly sulfur recovery.

Graphical abstract: Electronic and active site engineering in Rh metallene via phosphorus and sulfur dual-doping for electrocatalytic sulfion recycling and hydrogen generation

Supplementary files

Article information

Article type
Research Article
Submitted
29 May 2023
Accepted
10 Aug 2023
First published
11 Aug 2023

Inorg. Chem. Front., 2023,10, 5686-5693

Electronic and active site engineering in Rh metallene via phosphorus and sulfur dual-doping for electrocatalytic sulfion recycling and hydrogen generation

H. Wang, Y. Liang, S. Liu, X. Mu, H. Yu, K. Deng, Z. Wang, Y. Xu and L. Wang, Inorg. Chem. Front., 2023, 10, 5686 DOI: 10.1039/D3QI00994G

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