期刊
ACS APPLIED MATERIALS & INTERFACES
卷 9, 期 8, 页码 7217-7223出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b00722
关键词
ionic liquid; nanostructure; MoO2; electrocatalysis; hydrogen evolution
资金
- National Natural Science Foundation of China [21673128]
- Fundamental Research Funds of Shandong University [2015JC003]
Hierarchically structured one-dimensional (ID) MoO2 is synthesized for the first time in ionic liquid 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide ([BMIM][Tf2N]). The synthesis system is very simple (single [BMIM] [Tf2N] solvent plus MoO2(acac)2 reactant). [BMIM][Tf2N] itself works as both the reaction medium and the template for the formation of these interesting 1D MoO2 particles with ultrathin nanosheet subunits. The as-synthesized hierarchically 1D MoO2_(40) particles exhibit remarkable electrocatalytic activity with good long-term cycle stability for the hydrogen evolution reaction (HER) in acidic media. The HER activity of present synthesized MoO2 is comparable to those of the most active Mo-based electrocatalysts in acid media reported up to now. Therefore, the ionic liquid route provides us with a newly powerful tool for the synthesis of interesting alternative to noble metal catalysts for efficient electrocatalytic production of hydrogen in acidic environment.
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