Details

Autor(en) / Beteiligte

• Bai, Jingyuan
• Zhang, Jin
• Eiler, Konrad
• Yang, Zhou
• Fan, Longyi
• Yang, Dalong
• Zhang, Meilin
• Hou, Yupu
• Guan, Renguo
• Sort, Jordi
• Pellicer, Eva

Titel

Electrochemically Fabricated Surface-Mesostructured CuNi Bimetallic Catalysts for Hydrogen Production in Alkaline Media

Ist Teil von

• Nanomaterials (Basel, Switzerland), 2021-12, Vol.12 (1), p.118

Ort / Verlag

Switzerland: MDPI AG

Erscheinungsjahr

2021

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• Ni-based bimetallic films with 20 at.% and 45 at.% Cu and mesostructured surfaces were prepared by electrodeposition from an aqueous solution containing micelles of P123 triblock copolymer serving as a structure-directing agent. The pH value of the electrolytic solution had a key effect on both the resulting Cu/Ni ratio and the surface topology. The catalytic activity of the CuNi films toward hydrogen evolution reaction was investigated by cyclic voltammetry (CV) in 1 M KOH electrolyte at room temperature. The Cu Ni film showed the highest activity (even higher than that of a non-mesostructured pure Ni film), which was attributed to the Ni content at the utmost surface, as demonstrated by CV studies, as well as the presence of a highly corrugated surface.