eprintid: 18204
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/82/04
datestamp: 2024-06-04 14:10:21
lastmod: 2024-06-04 14:10:21
status_changed: 2024-06-04 14:01:44
type: article
metadata_visibility: show
creators_name: Huo, J.
creators_name: Jin, L.
creators_name: Chen, C.
creators_name: Chen, D.
creators_name: Xu, Z.
creators_name: Wilfred, C.D.
creators_name: Xu, Q.
creators_name: Lu, J.
title: Improving the Sulfurophobicity of the NiS-Doping CoS Electrocatalyst Boosts the Low-Energy-Consumption Sulfide Oxidation Reaction Process
ispublished: pub
keywords: Binary alloys; Cobalt alloys; Corrosion prevention; Electrocatalysts; Electrodes; Energy conservation; Hydrogen production; Polysulfides; Precious metals; Sulfur compounds, In situ raman; In situ ultraviolet�visible; Low energy consumption; Oxidation reactions; Polysulphides; Reaction process; Situ Raman; Sulfide oxidation; Sulphide oxidation reaction; Sulphur recovery, Cobalt compounds
note: cited By 0
abstract: Producing sulfur from a sulfide oxidation reaction (SOR)-based technique using sulfide aqueous solution has attracted considerable attention due to its ecofriendliness. This study demonstrates that NiS-doped cobalt sulfide NiS-CoS-supported NiCo alloy foam can deliver the SOR with superior electrocatalytic activity and robust stability compared to reported non-noble metal-based catalysts. Only 0.34 V vs RHE is required to drive a current density of 100 mA cm-2 for the SOR. According to the experiment, the catalyst exhibits a unique sulfurophobicity feature because of the weak interaction between sulfur and the transition metal sulfide (low affinity for elemental sulfur), preventing electrode corrosion during the SOR process. More impressively, the chain-growth mechanism of the SOR from short- to long-chain polysulfides was revealed by combining electrochemical and spectroscopic in situ methods, such as in situ ultraviolet-visible and Raman. It is also demonstrated that electrons can transfer straight from the sulfion (S2-) to the active site on the anode surface during the low-energy-consumption SOR process. This work provides new insight into simultaneous energy-saving hydrogen production and high-value-added S recovery from sulfide-containing wastewater. © 2023 American Chemical Society.
date: 2023
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85171900739&doi=10.1021%2facsami.3c11602&partnerID=40&md5=8237858072ce307beb7e1761236cc96a
id_number: 10.1021/acsami.3c11602
full_text_status: none
publication: ACS Applied Materials and Interfaces
volume: 15
number: 37
pagerange: 43976-43984
refereed: TRUE
citation:   Huo, J. and Jin, L. and Chen, C. and Chen, D. and Xu, Z. and Wilfred, C.D. and Xu, Q. and Lu, J.  (2023) Improving the Sulfurophobicity of the NiS-Doping CoS Electrocatalyst Boosts the Low-Energy-Consumption Sulfide Oxidation Reaction Process.  ACS Applied Materials and Interfaces, 15 (37).  pp. 43976-43984.