Study of hydrogen evolution reaction on Ni–P amorphous alloy in the light of experimental and quantum chemistry

Wei, Zidong; Yan, Aijing; Feng, Yangyang; Li, L.; Sun, Chuan; Shao, Zewei; Shen, Pei Kang

doi:10.1016/j.elecom.2007.09.006

Cited by 48 publications

(28 citation statements)

References 17 publications

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“…In terms of the DFT calculations results, for the first and second hydrogen uptakes, ∆E ads and ∆G ads of MoS 2 are the most negative, followed by MoS 2 /Ni 2 P and Ni 2 P. Compared with that of MoS 2 , affinities of MoS 2 /Ni 2 P and Ni 2 P to hydrogen neither too strong nor too weak, indicating its excellent HER performance [51,68]. In addition, the ∆G ads of Ni 2 P that capturing hydrogen atoms is more close to zero than those of the other two systems, it is sure that the HER property of Ni 2 P is higher than those of MoS 2 and MoS 2 /Ni 2 P hybrids [51,69].…”

Section: Dft Calculationsmentioning

confidence: 99%

Hydrogen Evolution Reaction Property of Molybdenum Disulfide/Nickel Phosphide Hybrids in Alkaline Solution

Yang

Kang

Yan

et al. 2018

Metals

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Abstract:The hydrogen evolution reaction (HER) property of molybdenum disulfide (MoS 2 ) is undesirable because of the insufficient active edge sites and the poor conductivity. To enhance HER performance of MoS 2 , nickel phosphide (Ni 2 P) was combined with this catalyst and three MoS 2 /Ni 2 P hybrids (38 wt % Ni 2 P addition for MoS 2 /Ni 2 P-38, 50 wt % Ni 2 P addition for MoS 2 /Ni 2 P-50, and 58 wt % Ni 2 P addition for MoS 2 /Ni 2 P-58) were fabricated via a hydrothermal synthesis process. Morphologies, crystallinities, chemical components, specific surface areas, and HER properties of the fabricated MoS 2 /Ni 2 P samples in an alkaline electrolyte were characterized and tested. In addition, the insight into the HER properties of as-prepared catalysts were revealed by the density functional theory (DFT) calculation. Additionally, the stabilities of pure MoS 2 , Ni 2 P, and MoS 2 /Ni 2 P-50 samples were evaluated. The results show that the addition of Ni 2 P can enhance the HER property of the MoS 2 catalyst. Although HER properties of the above-mentioned three MoS 2 /Ni 2 P hybrids are inferior to that of pure Ni 2 P, they are much higher than that of MoS 2 . Among as-prepared three hybrids, MoS 2 /Ni 2 P-50 exhibits the best HER performance, which may be due to its uniform morphology, large specific surface area, and excellent stability. The MoS 2 /Ni 2 P-50 hybrid shows a high cathodic current density (70 mA/cm 2 at −0.48 V), small Tafel slope (~58 mV/decade), and a low charge transfer resistance (0.83 kΩ·cm 2 ).

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Section: Dft Calculationsmentioning

confidence: 99%

Hydrogen Evolution Reaction Property of Molybdenum Disulfide/Nickel Phosphide Hybrids in Alkaline Solution

Yang

Kang

Yan

et al. 2018

Metals

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“…There are several ways to reduce the cost of hydrogen production by means of improving the electrode's performance leading to low energy consumption [9,10]. New electrode materials capable of catalytically reducing the energy barrier of the HER have been investigated [11,12]. In order to improve the electrocatalytic performance of the surface, number of metal alloy coatings have been recently developed and reported to have low over potential and high exchange current density as available in recent literatures.…”

Section: Introductionmentioning

confidence: 99%

Development of nano NiO incorporated nickel–phosphorus coatings for electrocatalytic applications

Shibli

Harikrishnan

Anupama

et al. 2015

Surface and Coatings Technology

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“…5 Compared with the noble metal catalysts, some nickelbased alloys, such as Ni, Ni-B and Ni-Cu-P had been investigated considering their low cost and high catalytic activities. [6][7][8][9][10] Among them dispersed Ni-B electrocatalyst over the other metals by electroless deposition technique had received widespread acceptance. The activity of the Ni-B electrocatalyst is related to its morphology and distribution on the electrode surfaces.…”

Section: Introductionmentioning

confidence: 99%

Nanoscale Ni–B Electrocatalyst Prepared from Nickel Ethylenediamine Complex for Direct Ethanol Electrocatalytic Oxidation

Hou¹,

Guo²,

Li³

et al. 2014

j nanosci nanotechnol

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Ni-B/Cu electrode prepared by the electroless deposition technique of chemical reduction of nickel ethylenediamine complex with BH4- was characterized by SEM, XRD and XPS techniques, respectively, and evaluated using ethanol electrocatalytic oxidation by the method of cyclic voltammetry. The as-prepared Ni-B/Cu electrode exhibited much higher electrocatalytic activity than the Ni-B/Cu electrode obtained via direct reduction of nickel metallic ions. The effects of the nickel ethylenediamine complex can be attributed to both the structural effect and electronic effect. The nickel ethylenediamine complex can not only make an electroless deposition stable and highly dispersed, but also facilitate the formation of more nanoscale microcrystalline Ni on the electrode surface, which increased the electrochemical oxidation activity. Moreover, ethylenediamine influenced the electronic states of Ni and B on the electrode surface, more electrons transfer from the B to Ni that the Ni active sites became more highly unsaturated, which could promote the form of adsorbed active ethanol.

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Study of hydrogen evolution reaction on Ni–P amorphous alloy in the light of experimental and quantum chemistry

Cited by 48 publications

References 17 publications

Hydrogen Evolution Reaction Property of Molybdenum Disulfide/Nickel Phosphide Hybrids in Alkaline Solution

Hydrogen Evolution Reaction Property of Molybdenum Disulfide/Nickel Phosphide Hybrids in Alkaline Solution

Development of nano NiO incorporated nickel–phosphorus coatings for electrocatalytic applications

Nanoscale Ni–B Electrocatalyst Prepared from Nickel Ethylenediamine Complex for Direct Ethanol Electrocatalytic Oxidation

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