title: Ionic Liquid as Reaction Medium for Synthesis of Hierarchically Structured One-Dimensional MoO2for Efficient Hydrogen Evolution.
abstract: Hierarchically structured one-dimensional (1D) MoO2is 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)2reactant). [BMIM][Tf2N] itself works as both the reaction medium and the template for the formation of these interesting 1D MoO2particles with ultrathin nanosheet subunits. The as-synthesized hierarchically 1D MoO2_40particles 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 MoO2is 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.
authors.affiliation: Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University , Jinan 250100, China.
authors.forename: Baohua
authors.initials: B
authors.lastname: Zhang
authors.affiliation: Geotechnical and Structural Engineering Research Center of Shandong University , Jinan 250061, China.
authors.forename: Yiguo
authors.initials: Y
authors.lastname: Xue
authors.affiliation: Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University , Jinan 250100, China.
authors.forename: Anning
authors.initials: A
authors.lastname: Jiang
authors.affiliation: Beijing Key Laboratory of Lignocellulosic Chemistry, College of Materials Science and Technology, Beijing Forestry University , Beijing 100083, China.
authors.forename: Zhimin
authors.identifier: http://orcid.org/0000-0001-6554-8788
authors.initials: Z
authors.lastname: Xue
authors.affiliation: Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University , Jinan 250100, China.
authors.forename: Zhonghao
authors.identifier: http://orcid.org/0000-0003-0699-300X
authors.initials: Z
authors.lastname: Li
authors.affiliation: Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University , Jinan 250100, China.
authors.forename: Jingcheng
authors.identifier: http://orcid.org/0000-0002-9760-9677
authors.initials: J
authors.lastname: Hao
keywords: MoO2; electrocatalysis; hydrogen evolution; ionic liquid; nanostructure