Enhanced electrocatalytic nitrate reduction by preferentially-oriented (100) PtRh and PtIr alloys: the hidden treasures of the ‘miscibility gap’

Matteo Duca,Nicolas Sacré,Andrew Wang,Sébastien Garbarino,Daniel Guay

Applied Catalysis B: Environmental（2018）

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摘要

•(100) Preferentially-oriented thin-film PtRh and PtIr alloys were prepared by PLD.•The electrochemical response in 0.5M H2SO4 reflects their bimetallic character.•Alloying Rh with 21–42% Pt significantly enhances NO3− reduction.•Trends in nitrate reduction activity correlate with hydrogen desorption at alloys.

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关键词

Nitrate reduction,Epitaxial films,Alloys,Electrocatalysis,(100) surfaces

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