Ionic Liquid as Reaction Medium for Synthesis of Hierarchically Structured One-Dimensional MoO2 for Efficient Hydrogen Evolution
Ionic Liquid as Reaction Medium for Synthesis of Hierarchically Structured One-Dimensional MoO2 for Efficient Hydrogen Evolution
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离子液体作为反应介质合成多级结构一维MoO2以实现高效析氢
DOI：
10.1021/acsami.7b00722
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发表时间：
2017
影响因子：
9.5
通讯作者：
Hao Jingcheng
中科院分区：
文献类型：
--
作者：
Zhang Baohua;Xue Yiguo;Jiang Anning;Xue Zhimin;Li Zhonghao;Hao Jingcheng
首次在离子液体1-丁基-3-甲基咪唑双（三氟甲磺酰基）亚胺（[BMIM][Tf2N]）中合成了具有分层结构的一维moo2。合成体系非常简单（单一[BMIM][Tf2N]溶剂加MoO2(acac)2反应物）。[BMIM][Tf2N]本身既是反应介质，也是形成这些具有超薄纳米片亚基的有趣的1D moo2颗粒的模板。在酸性介质中，分层合成的一维moo2_40颗粒具有显著的电催化活性和良好的长期循环稳定性。合成的moo2的HER活性与目前报道的酸性介质中活性最高的钼基电催化剂相当。因此，离子液体途径为我们在酸性环境下高效电催化制氢提供了一种新的强有力的工具来替代贵金属催化剂。
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.