Unlocking the Effects of the RuCo Alloy Ratio on Alkaline Hydrogen Production
Source abstract
Abstract
Understanding the interaction between Ru and Co components and the alloy ratio effects on the catalytic process is a technical challenge that requires a precise alloy structural design. This study proposes an effective stepwise annealing method for the construction of RuCo alloy-based electrocatalysts with varied Ru:Co ratios. Interestingly, as the concentration of Co in the first-step pyrolysis products increases, the secondary pyrolysis results in RuCo composites undergoing a transition from incomplete alloying to alloy ratios of 1:1, 1:2, and 1:8. When the alloy ratio is 1:1, more Ru n + and Co 0 transform into Ru 0 and Co 2/3+ . In 1 M KOH, RuCo-0.6/NC demonstrates outstanding catalytic performance and durability even superior to that of commercial Pt/C, delivering a lower overpotential of 16 mV at 10 mA cm –2 . DFT calculations reveal that the fast H 2 O dissociation and moderate H adsorption guarantee the superior activity of RuCo.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Catalysts for Methane Reforming · Catalysis and Hydrodesulfurization Studies · Electrocatalysts for Energy Conversion
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
Institute of Industrial Catalysis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China
Funding
National Natural Science Foundation of China · Natural Science Foundation of Zhejiang Province
References (61)
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