文献类型：期刊文献

英文题名：Ruthenium co-anchored by nitrogen and oxygen on lignin derived carbon for high-efficient hydrogen evolution

作者：Wang, Siyu[1];Ning, Xinran[2];Liu, Xiaohui[1];Shakouri, Mohsen[3];Hu, Yongfeng[4];Yuan, Haiyang[2];Liu, Pengfei[2];Lu, Xunyu[5];Guo, Yong[1];Wang, Yanqin[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, State Key Lab Green Chem Engn & Ind Catalysis, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Key Lab Ultrafine Mat, Shanghai Engn Res Ctr Hierarch Nanomat, Sch Mat Sci & Engn,Minist Educ, Shanghai 200237, Peoples R China;[3]Canadian Light Source Inc, 44 Innovat Blvd, Saskatoon, SK S7N 2V3, Canada;[4]Shanghai Res Inst Petrochem Technol, Shanghai 201208, Peoples R China;[5]Univ New South Wales, Sch Chem Engn, Sydney, NSW, Australia

年份：2024

卷号：217

外文期刊名：CARBON

收录：;EI(收录号：20234815117868);WOS:【SCI-EXPANDED(收录号:WOS:001125068500001)】；

基金：This work was supported financially by the National Key Research and Development Program of China (No. 2022YFA1504900) , the NSFC of China (No. 22072041, 21832002) and the Science and Technology Commission of Shanghai Municipality (10dz2220500) . We thank Ca-nadian Light Source Inc. for the help at characterization of XANES.

语种：英文

外文关键词：Ruthenium clusters; O-rich nitrogenated carbon; Hydrogen evolution reaction; Lignin; Co-anchored

摘要：Developing efficient electrocatalysts for hydrogen evolution reaction (HER) is crucial to hydrogen production by water electrolysis. Ruthenium (Ru) supported on nitrogenated carbon catalysts as well as the active sites on them have been widely investigated in HER. Nevertheless, the loading of Ru is still high and some oxygen species usually exist in the nitrogenated carbon and their roles are seldom discussed. Herein, we report a novel HER catalyst of 2 wt% Ru/CNO that Ru clusters uniformly dispersed on O-rich nitrogenated carbon (O-rich CN) synthesized from renewable lignin and low-cost melamine. In 1.0 M aqueous KOH, it presents low overpotential of 13 mV at 10 mA cm-2, comparing to that of 39 mV on a commercial 20 wt% Pt/C catalyst. In particular, it also exhibits low value of 659 mV and excellent stability at a large current density of 2000 mA cm-2. The combination of various spectroscopic experiments and density functional theory calculations reveals that Ru cluster coanchored by nitrogen and oxygen is the active site. This study unveils the crucial role of O in nitrogenated carbon to HER and demonstrates a lignin derived carbon as an excellent electrocatalyst support, supplying a strategy for developing high-efficient HER catalysts.