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Core-Shell Rhodium Sulfide Catalyst for HER/HOR in HBr Solution

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 01 Apr 2016Publisher:The Electrochemical SocietyJournal:ECS Transactions, volume 72, pages 19-26 (issn: 1938-5862, eissn: 1938-6737,

Authors: Trung Van Nguyen; Yuanchao Li;

doi: 10.1149/07210.0019ecst , 10.1149/ma2016-01/3/391

Core-Shell Rhodium Sulfide Catalyst for HER/HOR in HBr Solution

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Abstract

Synthesis and characterization of high electrochemical surface area core-shell RhxSy catalysts for HER/HOR in HBr solution are discussed. Catalysts with RhxSy as shell and different percentage (5%, 10%, and 20%) platinum on carbon as core material are synthesized. Cyclic voltammetry was used to evaluate the Pt- equivalent mass specific ECSA and durability of these catalysts. The results show that the catalyst with core-shell structure has better performance compared to commercial catalyst (RhxSy/C catalyst from BASF). XRD, XPS and TEM were used to characterize the bulk and surface compositions and to confirm the core-shell structure of the catalysts, respectively.

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