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Regulation of Ferroelectric Polarization to Achieve Efficient Charge Separation and Transfer in Particulate RuO2/BiFeO(3)for High Photocatalytic Water Oxidation Activity
Shah, Jafar H.1,2,3; Huang, Biaohong4,5; Idris, Ahmed M.1,2,3; Liu, Yong1,2; Malik, Anum S.1,2,3; Hu, Weijin4,5; Zhang, Zhidong4,5; Han, Hongxian1,2,3; Li, Can1,2
Corresponding AuthorHu, Weijin(wjhu@imr.ac.cn) ; Han, Hongxian(hxhan@dicp.ac.cn)
2020-10-13
Source PublicationSMALL
ISSN1613-6810
Pages9
AbstractExploiting spontaneous polarization of ferroelectric materials to achieve high charge separation efficiency is an intriguing but challenging research topic in solar energy conversion. This work shows that loading high work function RuO(2)cocatalyst on BiFeO3(BFO) nanoparticles enhances the intrinsic ferroelectric polarization by efficient screening of charges to RuO(2)via RuO2/BFO heterojunction. This leads to enhancement of the surface photovoltage of RuO2/BFO single nanoparticles nearly 3 times, the driving force for charge separation and transfer in photocatalytic reactions. Consequently, efficient photocatalytic water oxidation is achieved with quantum efficiency as high as 5.36 % at 560 nm, the highest activity reported so far for ferroelectric materials. This work demonstrates that, unlike low photocurrent density in film-based ferroelectric devices, high photocatalytic activity could be achieved by regulating the ferroelectric spontaneous polarization using appropriate cocatalyst to enhance driving force for efficient separation and transfer of photogenerated charges in particulate ferroelectric semiconductor materials.
Keywordcharge separation cocatalysts ferroelectrics photocatalytic water oxidation spontaneous polarization field
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China
DOI10.1002/smll.202003361
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2017YFA0204804] ; National Natural Science Foundation of China[61974147]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000578734800001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/141105
Collection中国科学院金属研究所
Corresponding AuthorHu, Weijin; Han, Hongxian
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Div Solar Energy, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
5.Univ Sci & Technol China USTC, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Shah, Jafar H.,Huang, Biaohong,Idris, Ahmed M.,et al. Regulation of Ferroelectric Polarization to Achieve Efficient Charge Separation and Transfer in Particulate RuO2/BiFeO(3)for High Photocatalytic Water Oxidation Activity[J]. SMALL,2020:9.
APA Shah, Jafar H..,Huang, Biaohong.,Idris, Ahmed M..,Liu, Yong.,Malik, Anum S..,...&Li, Can.(2020).Regulation of Ferroelectric Polarization to Achieve Efficient Charge Separation and Transfer in Particulate RuO2/BiFeO(3)for High Photocatalytic Water Oxidation Activity.SMALL,9.
MLA Shah, Jafar H.,et al."Regulation of Ferroelectric Polarization to Achieve Efficient Charge Separation and Transfer in Particulate RuO2/BiFeO(3)for High Photocatalytic Water Oxidation Activity".SMALL (2020):9.
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