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Increased crystallinity of RuSe2/carbon nanotubes for enhanced electrochemical hydrogen generation performance

文献类型：期刊论文

作者Li, Dongze1,2; Zha, Meng1,4; Feng, Ligang1; Hu, Guangzhi4; Hu, Chaoquan3; Wu, Xiang5; Wang, Xinzhong2
刊名NANOSCALE
出版日期2021-12-03
页码7
ISSN号2040-3364
DOI10.1039/d1nr07254d
英文摘要Ru-Based catalysts are significant in the green hydrogen generation via the electrochemical water-splitting reaction. Herein, it is found that the increased crystallinity of cubic RuSe2 nanoparticles anchored over carbon nanotubes (RuSe2/CNTs) could largely increase the hydrogen generation performance both in acidic and alkaline electrolytes. The freshly prepared RuSe2/CNTs with low crystallinity had a very low catalytic performance for the HER, while the catalytic ability could be largely boosted by facile thermal annealing at 650 degrees C in an N-2 atmosphere, resulting from the increased crystallinity and electronic effect. The crystal structure enhancement of the RuSe2 nanoparticles was well supported by the X-ray diffraction technique and the lattice fringes in the high-resolution transmission electron microscopy images. As a result, the catalyst exhibited largely improved catalytic performance compared to the freshly prepared RuSe2/CNTs; specifically, the overpotentials of 48 and 64 mV were required to drive 10 mA cm(-2) in alkaline and acidic media when loaded on a glassy carbon electrode, much less than those of 109 and 120 mV for the freshly prepared RuSe2/CNTs; the catalytic performance in the alkaline electrolyte was even close to that of the commercial Pt/C catalyst. Correspondingly, the improved catalytic stability, catalytic kinetics, charge transfer ability and catalytic efficiency of the active sites were also observed. The current work shows an effective approach and important understanding for catalytic performance enhancement via increased crystallinity by facile thermal annealing.
WOS关键词EVOLUTION REACTION ; EFFICIENT ; NANOPARTICLES ; CATALYSTS ; SE ; ELECTROCATALYSTS ; NANOSHEETS ; PLATINUM
资助项目Yunnan Science and Technology Bureau[2019FY003025] ; Yunnan University[2019FY003025] ; National Natural Science Foundation of China-Yunnan Joint Fund[U2002213] ; Guangdong Province Higher Vocational Colleges & Schools Pearl River Scholar Funded Scheme ; Guangdong Third Generation Semiconductor Engineering Technology Development Center[2020GCZX007] ; National Natural Science Foundation of China[21972124] ; Six Talent Peaks Project of Jiangsu Province[XCL-070-2018]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:000733912900001
出版者ROYAL SOC CHEMISTRY
资助机构Yunnan Science and Technology Bureau ; Yunnan University ; National Natural Science Foundation of China-Yunnan Joint Fund ; Guangdong Province Higher Vocational Colleges & Schools Pearl River Scholar Funded Scheme ; Guangdong Third Generation Semiconductor Engineering Technology Development Center ; National Natural Science Foundation of China ; Six Talent Peaks Project of Jiangsu Province
源URL[http://ir.ipe.ac.cn/handle/122111/51494]  
专题中国科学院过程工程研究所
通讯作者Feng, Ligang; Hu, Chaoquan; Wang, Xinzhong
作者单位1.Yangzhou Univ, Sch Chem & Chem Engn, Yangzhou 225002, Peoples R China
2.Shenzhen Inst Informat Technol, Informat Technol Res Inst, Shenzhen 518172, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
4.Inst Ecol Res & Pollut Control Plateau Lakes, Sch Ecol & Environm Sci, Kunming 650504, Yunnan, Peoples R China
5.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Liaoning, Peoples R China
推荐引用方式
GB/T 7714		 Li, Dongze,Zha, Meng,Feng, Ligang,et al. Increased crystallinity of RuSe2/carbon nanotubes for enhanced electrochemical hydrogen generation performance[J]. NANOSCALE,2021:7.
APA Li, Dongze.,Zha, Meng.,Feng, Ligang.,Hu, Guangzhi.,Hu, Chaoquan.,...&Wang, Xinzhong.(2021).Increased crystallinity of RuSe2/carbon nanotubes for enhanced electrochemical hydrogen generation performance.NANOSCALE,7.
MLA Li, Dongze,et al."Increased crystallinity of RuSe2/carbon nanotubes for enhanced electrochemical hydrogen generation performance".NANOSCALE (2021):7.

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来源：过程工程研究所

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