An oxygen vacancy-modulated bifunctional S-NiMoO4 electrocatalyst for efficient alkaline overall water splitting
Literature Information
Publication Date
2024-01-03
DOI
10.1039/D3CC05444F
Impact Factor
6.222
Authors
Jiarong Mu, Ping Bai, Peng Wang, Zhinan Xie, Yihua Zhao, Jianfang Jing, Yiguo Su
View Original
Abstract
S-doped nickel molybdate nanorods grown on nickel foam (S-NiMoO4/NF) were fabricated by a two-step hydrothermal method. The resultant S-NiMoO4/NF exhibited remarkable bifunctional electrocatalytic activity, with overpotentials of 235 mV for the hydrogen evolution reaction and 150 mV for the oxygen evolution reaction at a current density of 50 mA cm−2. Assembled into the two-electrode S-NiMoO4/NF electrolyzer in alkaline electrolytes for overall water splitting, it required only low cell voltages of 1.55 V and 1.63 V to drive 50 mA cm−2 and 100 mA cm−2, respectively. No significant performance degradation occurred during the water electrolysis process. The experimental results confirmed that S-doping induced the increase of the oxygen vacancies, accelerating the reaction kinetics and thus improving the electrocatalytic performance. Meanwhile, more active sites exposure on the surface of S-NiMoO4/NF enhanced the reactivity. This work may guide the development of efficient bifunctional catalysts in alkaline electrolysis through oxygen vacancy regulation.
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Source Journal
Chemical Communications
CiteScore:
8.6
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4.7%
Articles per Year:
2458
ChemComm publishes urgent research which is of outstanding significance and interest to experts in the field, while also appealing to the journal’s broad chemistry readership. Our communication format is ideally suited to short, urgent studies that are of such importance that they require accelerated publication. Our scope covers all topics in chemistry, and research at the interface of chemistry and other disciplines (such as materials science, nanoscience, physics, engineering and biology) where there is a significant novelty in the chemistry aspects. Major topic areas covered include: Analytical Chemistry Catalysis Chemical Biology and medicinal chemistry Computational Chemistry and Machine Learning Energy and sustainable chemistry Environmental Chemistry Green Chemistry Inorganic Chemistry Materials Chemistry Nanoscience Organic Chemistry Physical Chemistry Polymer Chemistry Supramolecular Chemistry
Recommended Compounds
2-(3'-Chlorobiphenyl-3-yl)-4,6-diphenyl-1,3,5-triazine
CAS Number:
1443049-83-9
Molecular Formula:
C27H18ClN3
N-Methyl-2-(4-nitrophenyl)ethanamine hydrochloride (1:1)
CAS Number:
166943-39-1
Molecular Formula:
C9H13ClN2O2
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