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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.0c02548
|2 doi
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|a pubmed24n1057.xml
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|a (DE-627)NLM317338994
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|a (NLM)33166147
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Rathore, Divya
|e verfasserin
|4 aut
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|a Aggregates of Ni/Ni(OH)2/NiOOH Nanoworms on Carbon Cloth for Electrocatalytic Hydrogen Evolution
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|c 2020
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|a Text
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|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 24.11.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The development of an efficient electrocatalyst for hydrogen evolution reaction (HER) is essential to facilitate the practical application of water splitting. Here, we aim to develop an electrocatalyst, Ni/Ni(OH)2/NiOOH, via electrodeposition technique on carbon cloth, which shows efficient activity and durability for HER in an alkaline medium. Phase purity and morphology of the electrodeposited catalyst are determined using powder X-ray diffraction and electron microscopic techniques. The compositional and thermal stability of the catalyst is checked using X-ray photoelectron spectroscopy and thermogravimetry analysis. Electrodeposited Ni/Ni(OH)2/NiOOH material is an efficient, stable, and low-cost electrocatalyst for hydrogen evolution reaction in a 1.0 M KOH medium. The catalyst exhibits remarkable performance, achieving a current density of 10 mA/cm2 at a potential of -0.045 V vs reversible hydrogen electrode (RHE), and the Tafel slope value is 99.6 mV/dec. The overall electrocatalytic water splitting mechanism using Ni/Ni(OH)2/NiOOH catalyst is well explained, where formation and desorption of OH- ion on the catalyst surface are significant at alkaline pH. The developed electrocatalyst shows significant durability up to 200 h in a negative potential window in a highly corrosive alkaline environment along with efficient activity. The electrocatalyst can generate 165.6 μmol of H2 in ∼145 min of reaction time with 81.5% faradic efficiency
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|a Journal Article
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|a Sharma, Mamta Devi
|e verfasserin
|4 aut
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|a Sharma, Aditya
|e verfasserin
|4 aut
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|a Basu, Mrinmoyee
|e verfasserin
|4 aut
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| 700 |
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|a Pande, Surojit
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 36(2020), 46 vom: 24. Nov., Seite 14019-14030
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:36
|g year:2020
|g number:46
|g day:24
|g month:11
|g pages:14019-14030
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|u http://dx.doi.org/10.1021/acs.langmuir.0c02548
|3 Volltext
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