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Understanding of the intensified effect of super gravity on hydrogen evolution reaction
Wang, Mingyong1,2; Wang, Zhi2; Guo, Zhancheng2,3; Wang, MY
2009-07-01
Source PublicationINTERNATIONAL JOURNAL OF HYDROGEN ENERGY
ISSN0360-3199
Volume34Issue:13Pages:5311-5317
AbstractHydrogen evolution reaction (HER) under super gravity field was studied in 0.5 M H(2)SO(4) aqueous solution by cyclic voltammetry (CV), linear sweep voltammetry (LSV), chronoamperometry and electrochemical impedance spectroscopy (EIS). Electrode surface during HER was observed by electronic endoscope. The original understanding of the intensified effect of super gravity on HER was discussed. The results indicated that HER was enhanced by super gravity field. Little visible hydrogen bubbles were observed on electrode surface under super gravity field. it was reasonable that the intensified effect of super gravity on HER was ascribed to the smaller critical radii of forming bubble nucleus and larger buoyancy force, which would promote the disengagement of gas bubbles and decrease the gas coverage on electrode surface. As a result, more active sites remained and HER rate increased. (C) 2009 International Association for Hydrogen Energy. Published by Elsevier Ltd. All lights reserved.
KeywordSuper Gravity Hydrogen Evolution Reaction Gravity Coefficient Hydrogen Bubble Buoyancy Force
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.ijhydene.2009.05.043
Indexed BySCI
Language英语
WOS KeywordWATER ELECTROLYSIS ; CENTRIFUGAL FIELD ; BUBBLE COVERAGE ; COATINGS ; KINETICS ; NICKEL ; NI ; MICROGRAVITY ; ELECTRODES ; BEHAVIOR
WOS Research AreaChemistry ; Electrochemistry ; Energy & Fuels
WOS SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels
WOS IDWOS:000268402000004
Citation statistics
Cited Times:25[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6640
Collection湿法冶金清洁生产技术国家工程实验室
Corresponding AuthorWang, MY
Affiliation1.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
3.Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Wang, Mingyong,Wang, Zhi,Guo, Zhancheng,et al. Understanding of the intensified effect of super gravity on hydrogen evolution reaction[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2009,34(13):5311-5317.
APA Wang, Mingyong,Wang, Zhi,Guo, Zhancheng,&Wang, MY.(2009).Understanding of the intensified effect of super gravity on hydrogen evolution reaction.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,34(13),5311-5317.
MLA Wang, Mingyong,et al."Understanding of the intensified effect of super gravity on hydrogen evolution reaction".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 34.13(2009):5311-5317.
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