DICP OpenIR
Photoelectrochemical CO2 reduction to adjustable syngas on grain-boundary-mediated a-Si/TiO2/Au photocathodes with low onset potentials
Li, Chengcheng1; Wang, Tuo1; Liu, Bin1; Chen, Mengxin1; Li, Ang1; Zhang, Gong1; Du, Minyong2; Wang, Hui2; Liu, Shengzhong Frank2; Gong, Jinlong1
Corresponding AuthorGong, Jinlong(jlgong@tju.edu.cn)
Source PublicationENERGY & ENVIRONMENTAL SCIENCE
2019-03-01
ISSN1754-5692
DOI10.1039/c8ee02768d
Volume12Issue:3Pages:923-928
Funding ProjectNational Key R&D Program of China[2016YFB0600901] ; National Natural Science Foundation of China[21525626] ; National Natural Science Foundation of China[U1463205] ; National Natural Science Foundation of China[U1662111] ; National Natural Science Foundation of China[21722608] ; National Natural Science Foundation of China[51861125104] ; Program of Introducing Talents of Discipline to Universities[B06006]
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Program of Introducing Talents of Discipline to Universities ; Program of Introducing Talents of Discipline to Universities ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Program of Introducing Talents of Discipline to Universities ; Program of Introducing Talents of Discipline to Universities ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Program of Introducing Talents of Discipline to Universities ; Program of Introducing Talents of Discipline to Universities ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Program of Introducing Talents of Discipline to Universities ; Program of Introducing Talents of Discipline to Universities
WOS SubjectChemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences
WOS Research AreaChemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
WOS KeywordAMORPHOUS-SILICON PHOTOCATHODES ; CARBON-DIOXIDE ; SOLAR ; ELECTROREDUCTION ; EFFICIENT ; TIO2 ; AU ; CATALYSTS ; LAYER ; PHOTOCATALYSTS
AbstractA photoelectrochemical (PEC) CO2 reduction reaction (CRR) in an aqueous medium is among the most promising methods to produce renewable fuels with the sun and water as the energy and electron source. But a high negative bias remains a prerequisite to achieve an appreciable conversion at present due to the large overpotential of CO2 reduction. This communication describes a PEC CRR with low onset potential on an amorphous silicon (a-Si) photocathode decorated with grain-boundary-rich gold catalysts. Syngas, with high throughput and desirable CO/H2 ratios such as 1 : 2 and 1 : 1, was produced in a wide PEC range from the equilibrium potential E-0(CO2/CO) of -0.1 V vs. the reversible hydrogen electrode (V-RHE) to as positive as 0.4 V-RHE, leading to a half-cell conversion efficiency of 0.42%. This performance represents the highest half-cell efficiency and lowest onset potential for CO2 reduction ever reported among aqueous PEC cathodes under 1 sun illumination. The a-Si/TiO2/Au photocathodes exhibit excellent stability in a wide potential range, with a high CO mass activity up to 180 ampere per gram of gold at -0.1 V-RHE. Controlling the grain boundary provides powerful potential to adjust the product selectivity in PEC CO2 reduction.
Language英语
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Program of Introducing Talents of Discipline to Universities ; Program of Introducing Talents of Discipline to Universities ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Program of Introducing Talents of Discipline to Universities ; Program of Introducing Talents of Discipline to Universities ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Program of Introducing Talents of Discipline to Universities ; Program of Introducing Talents of Discipline to Universities ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Program of Introducing Talents of Discipline to Universities ; Program of Introducing Talents of Discipline to Universities
WOS IDWOS:000462661900022
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/165769
Collection中国科学院大连化学物理研究所
Corresponding AuthorGong, Jinlong
Affiliation1.Tianjin Univ, Sch Chem Engn & Technol, Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Minist Educ,Key Lab Green Chem Technol, Tianjin 300072, Peoples R China
2.Chinese Acad Sci, Dalian Natl Lab Clean Energy, Dalian Inst Chem Phys, iChEM, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Li, Chengcheng,Wang, Tuo,Liu, Bin,et al. Photoelectrochemical CO2 reduction to adjustable syngas on grain-boundary-mediated a-Si/TiO2/Au photocathodes with low onset potentials[J]. ENERGY & ENVIRONMENTAL SCIENCE,2019,12(3):923-928.
APA Li, Chengcheng.,Wang, Tuo.,Liu, Bin.,Chen, Mengxin.,Li, Ang.,...&Gong, Jinlong.(2019).Photoelectrochemical CO2 reduction to adjustable syngas on grain-boundary-mediated a-Si/TiO2/Au photocathodes with low onset potentials.ENERGY & ENVIRONMENTAL SCIENCE,12(3),923-928.
MLA Li, Chengcheng,et al."Photoelectrochemical CO2 reduction to adjustable syngas on grain-boundary-mediated a-Si/TiO2/Au photocathodes with low onset potentials".ENERGY & ENVIRONMENTAL SCIENCE 12.3(2019):923-928.
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