Regulation of Ferroelectric Polarization to Achieve Efficient Charge Separation and Transfer in Particulate RuO2/BiFeO(3)for High Photocatalytic Water Oxidation Activity

doi:10.1002/smll.202003361

IMR OpenIR

	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, Biaohong 4,5; Idris, Ahmed M.1,2,3; Liu, Yong 1,2; Malik, Anum S.1,2,3; Hu, Weijin 4,5; Zhang, Zhidong 4,5; Han, Hongxian 1,2,3; Li, Can 1,2
通讯作者	Hu, Weijin(wjhu@imr.ac.cn) ; Han, Hongxian(hxhan@dicp.ac.cn)
	2020-10-13
发表期刊	SMALL
ISSN	1613-6810
页码	9
摘要	Exploiting 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.
关键词	charge separation cocatalysts ferroelectrics photocatalytic water oxidation spontaneous polarization field
资助者	National Key R&D Program of China ; National Natural Science Foundation of China
DOI	10.1002/smll.202003361
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2017YFA0204804] ; National Natural Science Foundation of China[61974147]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000578734800001
出版者	WILEY-V C H VERLAG GMBH
引用统计	被引频次：71[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/141105
专题	中国科学院金属研究所
通讯作者	Hu, Weijin; Han, Hongxian
作者单位	1.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
推荐引用方式 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.