Critical role of hydrogen sorption kinetics in electrocatalytic CO₂ reduction revealed by on-chip in situ transport investigations.

ABSTRACT: Precise understanding of interfacial metal-hydrogen interactions, especially under in operando conditions, is crucial to advancing the application of metal catalysts in clean energy technologies. To this end, while Pd-based catalysts are widely utilized for electrochemical hydrogen production and hydrogenation, the interaction of Pd with hydrogen during active electrochemical processes is complex, distinct from most other metals, and yet to be clarified. In this report, the hydrogen surface adsorption and sub-surface absorption (phase transition) features of Pd and its alloy nanocatalysts are identified and quantified under operando electrocatalytic conditions via on-chip electrical transport measurements, and the competitive relationship between electrochemical carbon dioxide reduction (C

SUBMITTER: Mu Z 

PROVIDER: S-EPMC9663515 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature