MOE Laboratory of Bioinorganic and Synthetic Chemistry, The Key Lab of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China.
Angew Chem Int Ed Engl. 2017 Jul 3;56(28):8120-8124. doi: 10.1002/anie.201702934. Epub 2017 Jun 13.
Constructing inorganic-organic hybrids with superior properties in terms of water adsorption and activation will lead to catalysts with significantly enhanced electrocatalytic activity in the hydrogen evolution reaction (HER) in environmentally benign neutral media. Herein, we report SiO -polypyrrole (PPy) hybrid nanotubes supported on carbon fibers (CFs) (SiO /PPy NTs-CFs) as inexpensive and high-performance electrocatalysts for the HER in neutral media. Because of the strong electronic interactions between SiO and PPy, the SiO uniquely serves as the centers for water adsorption and activation, and accordingly promotes the HER. The metal-free SiO /PPy NTs-CFs displayed high catalytic activity in the HER in neutral media, such as a low onset potential and small Tafel slope, as well as excellent long-term durability.
构建在水吸附和活化方面具有优异性能的无机-有机杂化材料，将导致在环境友好的中性介质中具有显著增强的析氢反应 (HER) 电催化活性的催化剂。在此，我们报道了负载在碳纤维 (CFs) 上的二氧化硅-聚吡咯 (PPy) 杂化纳米管 (SiO/PPyNTs-CFs)，它是在中性介质中作为 HER 的廉价且高性能电催化剂。由于 SiO 和 PPy 之间存在强烈的电子相互作用，SiO 独特地充当了水吸附和活化的中心，从而促进了 HER。无金属的 SiO/PPyNTs-CFs 在中性介质中的 HER 中表现出高催化活性，例如低起始电位和小塔菲尔斜率，以及优异的长期耐久性。
