文献类型：期刊文献

英文题名：Revealing and magnifying interfacial effects between ruthenium and carbon supports for efficient hydrogen evolution

作者：Jiang, Yongjun[1,2];Huang, Ting-Wei[3];Chou, Hsuan-Lien[3];Zhou, Lihui[1,2];Lee, Sheng-Wei[3];Wang, Kuan-Wen[3,4];Dai, Sheng[1,2]

机构：[1]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Key Lab Adv Mat, Inst Fine Chem,Sch Chem & Mol Engn,Frontiers Sci, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Joint Int Res Lab Precis Chem & Mol Engn, Inst Fine Chem,Sch Chem & Mol Engn,Frontiers Sci, Shanghai 200237, Peoples R China;[3]Natl Cent Univ, Inst Mat Sci & Engn, Taoyuan 320, Taiwan;[4]Natl Taiwan Univ Sci & Technol, Dept Mat Sci & Engn, Taipei 10607, Taiwan

年份：2022

卷号：10

期号：34

起止页码：17730

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY A

收录：;EI(收录号：20223712706527);WOS:【SCI-EXPANDED(收录号:WOS:000840927500001)】；

基金：This work was supported by the Shanghai Rising-Star Program (20QA1402400), the Fundamental Research Funds for the Central Universities (222201717003 and JKVJ1211022), and the Ministry of Science and Technology, Taiwan (MOST 110-2221-E-008-061-MY3). S. D. acknowledges the Program for Professor of Special Appointment (Eastern Scholar) at the Shanghai Institutions of Higher Learning. Additional support was provided by the Frontiers Science Center for Materiobiology and Dynamic Chemistry and the Feringa Nobel Prize Scientist Joint Research Center at the East China University of Science and Technology.

语种：英文

外文关键词：Amorphous carbon - Etching - Hydrogen bonds - Porous materials - Ruthenium

摘要：Ru has been considered as a highly efficient material for the hydrogen evolution reaction (HER) and becomes one of the promising alternatives to Pt owing to its relatively low price and similar hydrogen bonding strength. Carbon host materials, e.g., amorphous carbon (AC), porous carbon (PC), and ZIF-derived carbon (ZC), are widely used in Ru/C catalysts. Here, we investigate the influences of the above three different carbon host materials over the supported Ru species in Ru/C catalysts. A stronger metal-support interaction is revealed in the Ru/ZC catalyst, in which the supported Ru species are preserved in a metallic state and a highly dispersed form, resulting in enhanced HER activity and stability in alkaline media. Both the Ru sites and Ru-C interfacial sites are determined to be active for the HER in Ru/ZC according to our electrochemical poisoning experiment. In addition, an acid etching treatment (AET) strategy is proposed to magnify the interfacial effect of Ru/C catalysts for further HER improvement, and the optimal Ru/ZC-E50 catalyst that undergoes appropriate etching treatment shows a smaller Ru size and more exposed Ru-C interface, realizing an overpotential of only 29 mV (at 10 mA cm(-2)) and a Tafel slope of 82 mV dec(-1) that greatly outperform those of Ru-based and Pt-based materials for the HER in alkaline media. These specific findings can provide deeper insights into the design strategy, structure-property relationship, and future development of Ru/C catalysts for efficient HER.