Electrodeposited Pd-Ni-Mo film as a cathode material for hydrogen evolution reaction

Ni–reduced graphene oxide composite cathodes with new hierarchical morphologies for electrocatalytic hydrogen generation in alkaline media

“…This value is superior to the 39 NiW alloy (j 250 $ 10 mA cm À2 , 6 M KOH) 12 and Pd-Ni-Mo lm (j 280 $ 10 mA cm À2 , 1 M NaOH). 40 The superior catalytic performance of Ni-rGO cathodes synthesized under supergravity elds could be attributed to the following reasons: (1) the unique multilayer structure with large numbers of Ni nanoparticles anchoring on the rGO surface has signicantly increased the surface area and provided more active sites for H adsorption during the Volmer step; (2) the cooperative effect between the Ni nanoparticles and the rGO sheets facilitates the H ads spillover from the Ni particles surface and migrate onto the rGO surface to enable the cleaning of Ni particles surface with more free active sites for H ads to be formed. 27 Tafel slope b also can estimate the HER mechanism for the electrodes, and the HER process have summarized as the following three essential steps: (1) Table 2, most of the Tafel slopes of Ni-rGO composite cathodes synthesized under supergravity elds are $120 mV dec À1 , which can be inferred that the rate-determining step of HER may be the Volmer step or the Volmer step coupled with one of the other two steps.…”

The facile synthesis of core–shell PtCu nanoparticles with superior electrocatalytic activity and stability in the hydrogen evolution reaction

“…[4][5][6] Therefore, the half-reaction where protons and electrons are combined into molecular hydrogen, namely the hydrogen evolution reaction (HER), is now being widely investigated as a promising form of hydrogen production technology. [7][8][9] Aer numerous studies, Pt-based catalysts are still the best choice compared with examples such as transition metal, [10][11][12][13][14] metal phosphide (TMP), 15,16 and metal nitride (TMN) 17,18 catalysts. However, restricted by its expensive and scarce nature, the large-scale utilization of Pt-based electrocatalysts is impractical.…”

Preparation and characterization of electrodeposited Ni-Ru alloys: morphological and catalytic study

“…The situation changed when scientists realized that the corrosion resistance of commercially used electrodes can be improved by the addition of a small amount of these elements to cathode material, which also affects their catalytic activity. Nowadays, based on these investigations, noble metal alloys with other elements like Co [36,37] and Ni [38,39] have become one of the most popular research objectives in field of electrochemistry.…”