期刊
SCIENCE BULLETIN
卷 66, 期 20, 页码 2079-2089出版社
ELSEVIER
DOI: 10.1016/j.scib.2021.05.027
关键词
Holey platinum nanotubes; High temperature pyrolysis; Ethanol electrochemical reforming; Ethanol oxidation reaction; Hydrogen production
资金
- Natural Science Foundation of Hainan Province [2019RC007]
- Key Research and Development Project of Hainan Province [ZDYF2020037]
- National Natural Science Foundation of China [21875133, 51873100]
- Natural Science Foundation of Shaanxi Province [2020JZ-23]
- Fundamental Research Funds for the Central Universities [GK202101005, GK201901002, 2019TS007, 2021CBLZ004, 2020CSLZ012]
- Innovation Team Project for Graduate Students at Shaanxi Normal University [TD2020048Y]
- Open Foundation of Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials at Guangxi University [2021GXYSOF02]
- 111 Project [B14041]
The study presents a facile self-template pyrolysis strategy at high temperature to synthesize one-dimensionally holey Pt nanotubes (Pt-hNTs), which exhibit superior electroactivity and durability for catalyzing ethanol electrooxidation and hydrogen evolution reaction. The hollow and holey structure of Pt-hNTs contribute to their clean surface and energy-saving strategy for electrochemical hydrogen production, presenting a new approach for efficient and sustainable catalysis.
The catalytic/electrocatalytic performance of platinum (Pt) nanostructures highly relates to their morphology. 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) nanorods 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 electrolysis voltage of 0.40 V to achieve the electrochemical hydrogen production, demonstrating a highly energy saving strategy relative to traditional water electrolysis. (c) 2021 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据