【摘 要】
：
The catalytic/electrocatalytic performance of platinum (Pt) nanostructures highly relates to their mor-phology.Herein,we propose a facile self-template pyrolysis strategy at high temperature to synthesize one-dimensionally holey Pt nanotubes (Pt-hNTs) usi
【机 构】
：
Key Laboratory of Macromolecular Science of Shaanxi Province,Key Laboratory of Applied Surface and C
论文部分内容阅读
The catalytic/electrocatalytic performance of platinum (Pt) nanostructures highly relates to their mor-phology.Herein,we propose a facile self-template pyrolysis strategy at high temperature to synthesize one-dimensionally holey Pt nanotubes (Pt-hNTs) using PtⅡ-dimethylglyoxime complex (PtⅡ-DMG) nanor-ods as the reaction precursor.The coordination capability of DMG results in the generation of PtⅡ-DMG nanorods,whereas the reducibility of DMG at high temperature leads to the reduction of PtⅡ species in PtⅡ-DMG nanorods.During the reaction process,the inside-out Ostwald ripening phenomenon leads to the hollow morphology of Pt-hNTs.Benefiting from the physical characteristics of hollow and holey structure,Pt-hNTs with clean surface show superior electroactivity and durability for catalyzing ethanol electrooxidation as well as hydrogen evolution reaction in alkaline media.Under optimized experimental conditions,the constructed symmetric Pt-hNTs||Pt-hNTs ethanol electrolyzer only requires an electroly-sis voltage of 0.40 V to achieve the electrochemical hydrogen production,demonstrating a highly energy saving strategy relative to traditional water electrolysis.
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