Regulation of Ferroelectric Polarization to Achieve Efficient Charge Separation and Transfer in Particulate RuO2/BiFeO(3)for High Photocatalytic Water Oxidation Activity
文献类型：期刊论文
| 作者 | Shah, Jafar H.2,3,4; Huang, Biaohong1,5; Idris, Ahmed M.2,3,4; Liu, Yong2,3; Malik, Anum S.2,3,4; Hu, Weijin1,5; Zhang, Zhidong1,5; Han, Hongxian2,3,4; Li, Can2,3 |
| 刊名 | SMALL
 |
| 出版日期 | 2020-10-13 |
| 页码 | 9 |
| ISSN号 | 1613-6810 |
| 关键词 | charge separation cocatalysts ferroelectrics photocatalytic water oxidation spontaneous polarization field |
| DOI | 10.1002/smll.202003361 |
| 通讯作者 | Hu, Weijin(wjhu@imr.ac.cn) ; Han, Hongxian(hxhan@dicp.ac.cn) |
| 英文摘要 | 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. |
| 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 |
| 语种 | 英语 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| WOS记录号 | WOS:000578734800001 |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/141104]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Hu, Weijin; Han, Hongxian |
| 作者单位 | 1.Univ Sci & Technol China USTC, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Div Solar Energy, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, 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. |
入库方式： OAI收割
来源：金属研究所
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