Catalytic Surface Specificity of Ni(OH) 2 ‐Decorated Pt Nanocubes for the Hydrogen Evolution Reaction in an Alkaline Electrolyte

ChemSusChem ◽  
2019 ◽  
Vol 12 (17) ◽  
pp. 4021-4028 ◽  
Author(s):  
Youngmin Hong ◽  
Chang Hyuck Choi ◽  
Sang‐Il Choi
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Alkaline Electrolyte ◽  
Catalytic Surface

Promoted Alkaline Hydrogen Evolution by N-doped Pt-Ru Single Atoms Alloy

2021 ◽  
Author(s):  
Mi Luo ◽  
Jinyan Cai ◽  
Jiasui Zou ◽  
Zheng Jiang ◽  
Gongming Wang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Surface Adsorption ◽  
Adsorption Behavior ◽  
Water Dissociation ◽  
Desorption Kinetics ◽  
Catalytic Surface ◽  
Single Atoms

Since water dissociation and H desorption kinetics essentially determine the performance of alkaline hydrogen evolution reaction (HER), rationally regulating surface adsorption behavior to achieve superior catalytic surface is always challenging...

MOF-derived hierarchical 3D bi-doped CoP nanoflower eletrocatalyst for hydrogen evolution reaction in both acidic and alkaline media

2020 ◽  
Vol 56 (56) ◽  
pp. 7702-7705 ◽  
Author(s):  
Lei Guo ◽  
Xue Bai ◽  
Hui Xue ◽  
Jing Sun ◽  
Tianshan Song ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Current Density ◽  
Alkaline Media ◽  
Alkaline Electrolyte ◽  
Acidic Electrolyte ◽  
Acidic And Alkaline Media ◽  
A Current

A 3D hierarchical Bi-doped CoP nanoflowers electrocatalyst is developed based on a MOF self-sacrifice strategy. The 3% Bi/CoP catalyst delivers a current density of 10 mA cm−2 at low overpotentials of 122 mV in alkaline electrolyte and 150 mV in acidic electrolyte.

Ni–CeO2 composite cathode material for hydrogen evolution reaction in alkaline electrolyte

2012 ◽  
Vol 37 (19) ◽  
pp. 13921-13932 ◽  
Author(s):  
Zhen Zheng ◽  
Ning Li ◽  
Chun-Qing Wang ◽  
De-Yu Li ◽  
Yong-Ming Zhu ◽  
...  
Keyword(s):  
Cathode Material ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Composite Cathode ◽  
Alkaline Electrolyte ◽  
Composite Cathode Material

Pt–Ni octahedral nanocrystals as a class of highly active electrocatalysts toward the hydrogen evolution reaction in an alkaline electrolyte

2016 ◽  
Vol 4 (32) ◽  
pp. 12392-12397 ◽  
Author(s):  
Reza Kavian ◽  
Sang-Il Choi ◽  
Jinho Park ◽  
Tianyuan Liu ◽  
Hsin-Chieh Peng ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Alkaline Solution ◽  
Alkaline Electrolyte ◽  
Highly Active ◽  
Octahedral Nanocrystals

Pt–Ni octahedral nanocrystals with Ni(OH)2 on their surfaces were synthesised and shown to be a promising catalyst for the hydrogen evolution reaction in alkaline solution.

scholarly journals Effect of Morphology and Mechanical Stability of Nanometric Platinum Layer on Nickel Foam for Hydrogen Evolution Reaction

Energies ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 3116
Author(s):  
Rachela G. Milazzo ◽  
Stefania M. S. Privitera ◽  
Silvia Scalese ◽  
Salvatore A. Lombardo
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Deposition Time ◽  
Mechanical Stability ◽  
Nickel Foam ◽  
Linear Sweep Voltammetry ◽  
Electrochemical Activity ◽  
Alkaline Electrolyte ◽  
Mechanical Instability ◽  
Platinum Layer

Platinum thin films are deposited on open-cell nickel foam with porosity of 95% via spontaneous galvanic displacement. Ni foams with different morphologies and pore size are compared and characterized by electrochemical and structural analysis techniques. The effect of Pt coating on the electrochemical activity is studied by using the Pt coated foam as electrode material for hydrogen evolution reaction in an aqueous alkaline electrolyte. The electrocatalytic activity of the electrodes is evaluated using linear sweep voltammetry curves and Tafel plots as a function of deposition time. The comparison with scanning electron microscopy analyses demonstrates that the catalytic activity has a maximum when the platinum film completely covers the Ni surface. The further increase of the Pt thickness leads to mechanical instability with crack formation and delamination. The effect of the foam morphology on the Pt deposition rate has been evaluated and discussed, determining the minimum Pt amount required to achieve the maximum electrochemical activity, as well as the maximum thickness in order to assure stable characteristics before delamination occurs.

Enhancing hydrogen evolution reaction through modulating electronic structure of self-supported NiFe LDH

2020 ◽  
Vol 10 (13) ◽  
pp. 4184-4190 ◽  
Author(s):  
Xiao-Peng Li ◽  
Wen-Kai Han ◽  
Kang Xiao ◽  
Ting Ouyang ◽  
Nan Li ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Alkaline Electrolyte ◽  
Overall Water Splitting ◽  
Double Hydroxide

NiFe-layered double hydroxide (NiFe LDH), as an efficient oxygen evolution reaction (OER) electrocatalyst, has emerged as a promising electrocatalyst for catalyzing overall water splitting in alkaline electrolyte.

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