Mechanistic study of the hydrogen evolution reaction on Ni-Zn and Ni-S cathodes

Kinetics and electrocatalytic behavior of nanocrystalline CoNiFe alloy in hydrogen evolution reaction

“…Apparently, increase in temperature significantly increases the exchange current densities and decreases the HER overpotentials. The exchange current density obtained from polarization curve for CoNiFe electrode is higher than those reported for Ni and some Ni alloys in alkaline solutions [4,5,[8][9][10][11]14,15].…”

“…Increase of the electrocatalytic activity of nickel for electrolytic hydrogen evolution has been achieved by the formation of several binary and ternary nickel alloys such as Ni-Mo, Ni-Ti, Ni-Co-Zn [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. Nickel, cobalt and iron binary alloys such as Ni-Co and Ni-Fe have been investigated as electrodes for the HER and it has been observed that these alloys show more specific electrocatalytic activity than nickel [14][15][16].…”

The electrocatalytic behaviour of electroless Ni–P alloys

“…Both routes lead to the P co-deposition and it is well known that its presence in the alloy contributes for the enhancement of the corrosion resistance [33][34][35][36][37], hardness [38,39] and wear resistance [40]. In what concerns the catalytic activity, relatively scarce information is available for electroless Ni-P but electrodeposited alloys have been extensively studied and a remarkably high catalytic activity reported [24][25][26][27][28][29][30][31][32]41].…”

“…Particular attention has been paid to nickel [14][15][16] and nickel based alloys [17][18][19][20][21][22][23] namely those involving a non-metallic element such as Ni-P [24][25][26][27][28][29][30][31][32].…”

A study on the composite LaNi5/Ni–S alloy film used as HER cathode in alkaline medium

“…the "black nickel" cathode), extremely amorphous Ni-S alloy, is considered as an excellent HER cathode in water electrolysis [1][2][3][4][5][6][7]. However, the Ni-S film dissolves gradually when the electrolytic process is interrupted and therefore lost its high HER activity, which is an obstacle for its large-scale application.…”