Generalized analytical expressions for Tafel slope, reaction order and a.c. impedance for the hydrogen evolution reaction (HER): mechanism of HER on platinum in alkaline media

1993 ◽  
Vol 23 (6) ◽  
pp. 631-640 ◽  
Author(s):  
B. V. Tilak ◽  
C. -P. Chen
1977 ◽  
Vol 55 (3) ◽  
pp. 375-379 ◽  
Author(s):  
Cherubala P. Vijayan ◽  
Dominique-Louis Piron

The mechanism of the hydrogen evolution reaction on niobium is evaluated in alkaline media at 24 °C. The reaction order of zero, along with the observed Tafel slopes of 120 mV/decade (standard deviation 8 mV/dec.), indicate the Heyrovsky reaction mechanism to be applicable for the hydrogen evolution reaction. The presence of anions such as sulfate and chloride does not influence the mechanism.


2021 ◽  
pp. 138985
Author(s):  
Xuerui Yi ◽  
Xiaobo He ◽  
Fengxiang Yin ◽  
Guoru Li ◽  
Zhichun Li

Ionics ◽  
2017 ◽  
Vol 24 (4) ◽  
pp. 1121-1127 ◽  
Author(s):  
Yanbing Zhu ◽  
Tao Liu ◽  
Liming Li ◽  
Shili Song ◽  
Rui Ding

Energies ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4651
Author(s):  
Yilin Deng ◽  
Wei Lai ◽  
Bin Xu

The energy crisis and environmental pollution have attracted much attention and have promoted researches on clean and sustainable hydrogen energy resources. With the help of highly active and stable transition metal nickel-based catalysts, the production of hydrogen from water electrolysis from electrolyzed water has become an inexpensive and efficient strategy for generating hydrogen energy. In recent years, heteroatom doping has been found to be an effective strategy to improve the electrocatalytic hydrogen evolution reaction (HER) performances of nickel-based catalysts in acidic, neutral, and alkaline media. This review will highlight many recent works of inexpensive and readily available heteroatom-doped nickel-based HER catalysts. The evaluation methods for the performances of HER catalyst will be briefly described, and the role of heteroatom doping and its application in nickel-based catalyst will be summarized. This article will also point out some heteroatom doping strategies, which may provide references and inspire the design of other catalysts with dopants.


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