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The intensification technologies to water electrolysis for hydrogen production - A review
Alternative TitleRenew. Sust. Energ. Rev.
Wang, Mingyong1; Wang, Zhi1; Gong, Xuzhong1; Guo, Zhancheng1,2
2014
Source PublicationRENEWABLE & SUSTAINABLE ENERGY REVIEWS
ISSN1364-0321
Volume29Issue:1Pages:573-588
AbstractWater electrolysis derived by renewable energy such as solar energy and wind energy is a sustainable method for hydrogen production due to high purity, simple and green process. One of the challenges is to reduce energy consumption of water electrolysis for large-scale application in future. Cell voltage, an important criterion of energy consumption, consists of theoretical decomposition voltage (U-theta), ohmic voltage drop (i*Sigma R) and reaction overpotential (eta). The kinetic and thermodynamic roots of high cell voltage are analyzed systemically in this review. During water electrolysis, bubble coverage on electrode surface and bubble dispersion in electrolyte, namely bubble effect, result in high ohmic voltage drop and large reaction overpotential. Bubble effect is one of the most key factors for high energy consumption. Based on the theoretical analysis, we summarize and divide recent intensification technologies of water electrolysis into three categories: external field, new electrolyte composition and new thermodynamic reaction system. The fundamentals and development of these intensification technologies are discussed and reviewed. Reaction overpotential and ohmic voltage drop are improved kinetically by external field or new electrolyte composition. The thermodynamic decomposition voltage of water is also reduced by new reaction systems such as solid oxide electrolysis cell (SOEC) and carbon assisted water electrolysis (CAWE). (C) 2013 Elsevier Ltd. All rights reserved.; Water electrolysis derived by renewable energy such as solar energy and wind energy is a sustainable method for hydrogen production due to high purity, simple and green process. One of the challenges is to reduce energy consumption of water electrolysis for large-scale application in future. Cell voltage, an important criterion of energy consumption, consists of theoretical decomposition voltage (U-theta), ohmic voltage drop (i*Sigma R) and reaction overpotential (eta). The kinetic and thermodynamic roots of high cell voltage are analyzed systemically in this review. During water electrolysis, bubble coverage on electrode surface and bubble dispersion in electrolyte, namely bubble effect, result in high ohmic voltage drop and large reaction overpotential. Bubble effect is one of the most key factors for high energy consumption. Based on the theoretical analysis, we summarize and divide recent intensification technologies of water electrolysis into three categories: external field, new electrolyte composition and new thermodynamic reaction system. The fundamentals and development of these intensification technologies are discussed and reviewed. Reaction overpotential and ohmic voltage drop are improved kinetically by external field or new electrolyte composition. The thermodynamic decomposition voltage of water is also reduced by new reaction systems such as solid oxide electrolysis cell (SOEC) and carbon assisted water electrolysis (CAWE). (C) 2013 Elsevier Ltd. All rights reserved.
KeywordWater Electrolysis Hydrogen Production Bubble Cell Voltage
SubtypeReview
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.rser.2013.08.090
URL查看原文
Indexed BySCI
Language英语
WOS KeywordHIGH-TEMPERATURE ELECTROLYSIS ; GAS-EVOLVING ELECTRODES ; SUPER GRAVITY-FIELD ; FUEL-CELL OPERATION ; 2-PHASE FLOW MODEL ; FORMED IN-SITU ; EVOLUTION REACTION ; MAGNETIC-FIELD ; ELECTROCHEMICAL-CELL ; ELECTROCATALYTIC ACTIVITY
WOS Research AreaEnergy & Fuels
WOS SubjectEnergy & Fuels
WOS IDWOS:000329892100047
Citation statistics
Cited Times:272[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/8129
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Wang, Mingyong,Wang, Zhi,Gong, Xuzhong,et al. The intensification technologies to water electrolysis for hydrogen production - A review[J]. RENEWABLE & SUSTAINABLE ENERGY REVIEWS,2014,29(1):573-588.
APA Wang, Mingyong,Wang, Zhi,Gong, Xuzhong,&Guo, Zhancheng.(2014).The intensification technologies to water electrolysis for hydrogen production - A review.RENEWABLE & SUSTAINABLE ENERGY REVIEWS,29(1),573-588.
MLA Wang, Mingyong,et al."The intensification technologies to water electrolysis for hydrogen production - A review".RENEWABLE & SUSTAINABLE ENERGY REVIEWS 29.1(2014):573-588.
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