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Highly active and durable non-precious-metal catalysts encapsulated in carbon nanotubes for hydrogen evolution reaction
Deng, Jiao; Ren, Pengju; Deng, Dehui; Yu, Liang; Yang, Fan; Bao, Xinhe
Source PublicationENERGY & ENVIRONMENTAL SCIENCE
2014-06-01
DOI10.1039/c4ee00370e
Volume7Issue:6Pages:1919-1923
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology ; Life Sciences & Biomedicine
WOS SubjectChemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences
WOS Research AreaChemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
WOS KeywordMOS2 ULTRATHIN NANOSHEETS ; EDGE SITES ; ELECTROCATALYTIC MATERIALS ; MOLYBDENUM ; IRON ; COBALT ; OXYGEN ; REDUCTION ; OXIDATION ; EFFICIENT
AbstractEmploying a low-cost and highly efficient electrocatalyst to replace Pt-based catalysts for hydrogen evolution reaction (HER) has attracted increasing interest in renewable energy research. Earth-abundant transition metals such as Fe, Co and Ni have been investigated as promising alternatives in alkaline electrolytes. However, these non-precious- metal catalysts are not stable in acids, excluding their application in the acidic solid polymer electrolyte (SPE). Herein, we report a strategy to encapsulate 3d transition metals Fe, Co and the FeCo alloy into nitrogen-doped carbon nanotubes (CNTs) and investigated their HER activity in acidic electrolytes. The optimized catalysts exhibited long-term durability and high activity with only an similar to 70 mV onset overpotential vs. RHE which is quite close to that of the commercial 40% Pt/C catalyst, demonstrating the potential for the replacement of Pt-based catalysts. Density functional theory (DFT) calculations indicated that the introduction of metal and nitrogen dopants can synergistically optimize the electronic structure of the CNTs and the adsorption free energy of H atoms on CNTs, and therefore promote the HER with a Volmer-Heyrovsky mechanism.
Language英语
WOS IDWOS:000336831700013
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/145783
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Deng, Jiao,Ren, Pengju,Deng, Dehui,et al. Highly active and durable non-precious-metal catalysts encapsulated in carbon nanotubes for hydrogen evolution reaction[J]. ENERGY & ENVIRONMENTAL SCIENCE,2014,7(6):1919-1923.
APA Deng, Jiao,Ren, Pengju,Deng, Dehui,Yu, Liang,Yang, Fan,&Bao, Xinhe.(2014).Highly active and durable non-precious-metal catalysts encapsulated in carbon nanotubes for hydrogen evolution reaction.ENERGY & ENVIRONMENTAL SCIENCE,7(6),1919-1923.
MLA Deng, Jiao,et al."Highly active and durable non-precious-metal catalysts encapsulated in carbon nanotubes for hydrogen evolution reaction".ENERGY & ENVIRONMENTAL SCIENCE 7.6(2014):1919-1923.
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