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Geometric Structure and Electronic Polarization Synergistically Boost Hydrogen Evolution Kinetics in Alkaline Medium
Li, SL; Ma, RG; Pei, Y; Mao, BH; Lu, HL; Yang, MH; Thomas, TJ; Liu, DM; Wang, JC
2020-05-07
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY LETTERS
ISSN1948-7185
Issue9Pages:3436
SubtypeArticle
AbstractEfficient electrocatalysts for the hydrogen evolution reaction (HER) are significant for the utilization of hydrogen as a fuel, particularly under alkaline conditions. However, the sluggish kinetics of HER remains a challenge. Here we demonstrate an efficient HER catalyst comprising Ru and AgCl nanoparticles anchored on Ag nanowires (Ru/AgCl@Ag), which delivers a low overpotential of 12 mV at 10 mA cm(-2) and a Tafel slope of 38 mV decade(-1). A high mass activity of 214 mA mg(-1) at an overpotential of 25 mV and a long-term durability in 1.0 M KOH are observed. In combination with computational simulations, we find that the high electronegativity of chlorine in AgCl and d-band electrons from Ru synergistically destabilize the water molecule and modulate H adsorption/desorption on the surface of Ru/AgCl@Ag, respectively. This work opens a promising avenue for the facile design and application of highly active and stable composite electrocatalysts toward water splitting.
DOI10.1021/acs.jpclett.0c00703
WOS KeywordLAYERED DOUBLE HYDROXIDE ; OXYGEN REDUCTION ; EFFICIENT ; PH ; IDENTIFICATION ; NANOPARTICLES ; NANOWIRES ; CATALYSTS
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/28081
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Li, SL,Ma, RG,Pei, Y,et al. Geometric Structure and Electronic Polarization Synergistically Boost Hydrogen Evolution Kinetics in Alkaline Medium[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2020(9):3436.
APA Li, SL.,Ma, RG.,Pei, Y.,Mao, BH.,Lu, HL.,...&Wang, JC.(2020).Geometric Structure and Electronic Polarization Synergistically Boost Hydrogen Evolution Kinetics in Alkaline Medium.JOURNAL OF PHYSICAL CHEMISTRY LETTERS(9),3436.
MLA Li, SL,et al."Geometric Structure and Electronic Polarization Synergistically Boost Hydrogen Evolution Kinetics in Alkaline Medium".JOURNAL OF PHYSICAL CHEMISTRY LETTERS .9(2020):3436.
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