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Robust enhanced hydrogen production at acidic conditions over molybdenum oxides-stabilized ultrafine palladium electrocatalysts

文献类型：期刊论文

作者Sun, Ji1,2; Zhang, Xian1; Jin, Meng1,2; Xiong, Qizhong1; Wang, Guozhong1; Zhang, Haimin1; Zhao, Huijun1,3
刊名NANO RESEARCH
出版日期2020-09-29
关键词MoOx Pd nanoparticles electrocatalysts hydrogen evolution reaction
ISSN号1998-0124
DOI10.1007/s12274-020-3083-3
通讯作者Zhang, Haimin(zhanghm@issp.ac.cn) ; Zhao, Huijun(h.zhao@griffith.edu.au)
英文摘要Electrochemical water splitting is quite seductive for eco-friendly hydrogen fuel energy production, however, the attainment of highly efficient, durable, and cheap catalysts for the hydrogen evolution reaction (HER) remains challenging. In this study, molybdenum oxides stabilized palladium nanoparticle catalysts (MoOx-Pd) arein situprepared on commercial carbon cloth (CC) by the facile two-step method of dip-coating and electrochemical reduction. As a self-supported Pd-based catalyst electrode, the MoOx-Pd/CC presents a competitive Tafel slope of 45.75 mVdec(-1), an ultralow overpotential of 25 mV, and extremely long cycling durability (one week) in 0.5 M H2SO4 electrolyte, superior to unmodified Pd catalysts and comparable to commercial Pt mesh electrode. On the one hand, the introduction of MoOx can inhibit the growth of Pd particles to obtain ultrafine Pd nanoparticles, thus exposing more available active sites. On the other hand, density functional theory (DFT) calculation revealed that MoOx on the surface of Pd metal can regulate the electronic structure of Pd metal and enhance its intrinsic catalytic activity of HER. This work suggests that transitional metal nanoparticles stabilized by molybdenum oxides are hopeful approaches for obtaining fruitful hydrogen-producing electrocatalysts.
WOS关键词EVOLUTION REACTION ; OXYGEN EVOLUTION ; PLATINUM ; CATALYSTS ; DEHYDROGENATION ; NANOPARTICLE ; REDUCTION ; OXIDATION ; VACANCIES ; COMOO4
资助项目Natural Science Foundation of China[51902312] ; Natural Science Foundation of China[51672277] ; Anhui Provincial Natural Science Foundation[1908085QB83] ; China Postdoctoral Science Foundation[2019M652224] ; CAS Pioneer Hundred Talents Program ; CAS/SAFEA International Partnership Program for Creative Research Teams of Chinese Academy of Sciences, China
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:000573764700002
出版者TSINGHUA UNIV PRESS
资助机构Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; China Postdoctoral Science Foundation ; CAS Pioneer Hundred Talents Program ; CAS/SAFEA International Partnership Program for Creative Research Teams of Chinese Academy of Sciences, China
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/104329]  
专题中国科学院合肥物质科学研究院
通讯作者Zhang, Haimin; Zhao, Huijun
作者单位1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys,Ctr Environm & Energy Nanomat, Anhui Key Lab Nanomat & Nanotechnol,CAS Ctr Excel, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
3.Griffith Univ, Ctr Clean Environm & Energy, Gold Coast Campus, Southport, Qld 4222, Australia
推荐引用方式
GB/T 7714		 Sun, Ji,Zhang, Xian,Jin, Meng,et al. Robust enhanced hydrogen production at acidic conditions over molybdenum oxides-stabilized ultrafine palladium electrocatalysts[J]. NANO RESEARCH,2020.
APA Sun, Ji.,Zhang, Xian.,Jin, Meng.,Xiong, Qizhong.,Wang, Guozhong.,...&Zhao, Huijun.(2020).Robust enhanced hydrogen production at acidic conditions over molybdenum oxides-stabilized ultrafine palladium electrocatalysts.NANO RESEARCH.
MLA Sun, Ji,et al."Robust enhanced hydrogen production at acidic conditions over molybdenum oxides-stabilized ultrafine palladium electrocatalysts".NANO RESEARCH (2020).

入库方式： OAI收割

来源：合肥物质科学研究院

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