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Improving the Sulfurophobicity of the NiS-Doping CoS Electrocatalyst Boosts the Low-Energy-Consumption Sulfide Oxidation Reaction Process

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 electroca...

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Main Authors: Huo, J., Jin, L., Chen, C., Chen, D., Xu, Z., Wilfred, C.D., Xu, Q., Lu, J.
Format: Article
Published: NLM (Medline) 2023
Online Access:http://scholars.utp.edu.my/id/eprint/37349/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85171900739&doi=10.1021%2facsami.3c11602&partnerID=40&md5=8237858072ce307beb7e1761236cc96a
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spelling oai:scholars.utp.edu.my:373492023-10-04T08:42:20Z http://scholars.utp.edu.my/id/eprint/37349/ Improving the Sulfurophobicity of the NiS-Doping CoS Electrocatalyst Boosts the Low-Energy-Consumption Sulfide Oxidation Reaction Process Huo, J. Jin, L. Chen, C. Chen, D. Xu, Z. Wilfred, C.D. Xu, Q. Lu, J. 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. NLM (Medline) 2023 Article NonPeerReviewed 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 & interfaces, 15 (37). pp. 43976-43984. ISSN 19448252 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85171900739&doi=10.1021%2facsami.3c11602&partnerID=40&md5=8237858072ce307beb7e1761236cc96a 10.1021/acsami.3c11602 10.1021/acsami.3c11602 10.1021/acsami.3c11602
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description 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.
format Article
author Huo, J.
Jin, L.
Chen, C.
Chen, D.
Xu, Z.
Wilfred, C.D.
Xu, Q.
Lu, J.
spellingShingle Huo, J.
Jin, L.
Chen, C.
Chen, D.
Xu, Z.
Wilfred, C.D.
Xu, Q.
Lu, J.
Improving the Sulfurophobicity of the NiS-Doping CoS Electrocatalyst Boosts the Low-Energy-Consumption Sulfide Oxidation Reaction Process
author_facet Huo, J.
Jin, L.
Chen, C.
Chen, D.
Xu, Z.
Wilfred, C.D.
Xu, Q.
Lu, J.
author_sort Huo, J.
title Improving the Sulfurophobicity of the NiS-Doping CoS Electrocatalyst Boosts the Low-Energy-Consumption Sulfide Oxidation Reaction Process
title_short Improving the Sulfurophobicity of the NiS-Doping CoS Electrocatalyst Boosts the Low-Energy-Consumption Sulfide Oxidation Reaction Process
title_full Improving the Sulfurophobicity of the NiS-Doping CoS Electrocatalyst Boosts the Low-Energy-Consumption Sulfide Oxidation Reaction Process
title_fullStr Improving the Sulfurophobicity of the NiS-Doping CoS Electrocatalyst Boosts the Low-Energy-Consumption Sulfide Oxidation Reaction Process
title_full_unstemmed Improving the Sulfurophobicity of the NiS-Doping CoS Electrocatalyst Boosts the Low-Energy-Consumption Sulfide Oxidation Reaction Process
title_sort improving the sulfurophobicity of the nis-doping cos electrocatalyst boosts the low-energy-consumption sulfide oxidation reaction process
publisher NLM (Medline)
publishDate 2023
url http://scholars.utp.edu.my/id/eprint/37349/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85171900739&doi=10.1021%2facsami.3c11602&partnerID=40&md5=8237858072ce307beb7e1761236cc96a
_version_ 1779441369322881024
score 13.211869

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