Reconstructing Ferroelectric Polarization Screening of PbTiO3 by Epitaxial SrTiO3 for Efficient Photocatalytic Overall Water Splitting
文献类型：期刊论文
| 作者 | Du, Peipei1; Huang, Jie1; Ye, Zixing2; Zhen, Chao1; Liu, Jianan1; Yang, Yang1; Ren, Zhaohui2; Yin, Lichang1; Wang, Lianzhou3,4; Liu, Gang1,5 |
| 刊名 | ADVANCED FUNCTIONAL MATERIALS
 |
| 出版日期 | 2024-02-20 |
| 页码 | 9 |
| 关键词 | ferroelectric polarization heteroepitaxy interface control PbTiO3 photocatalytic overall water splitting |
| ISSN号 | 1616-301X |
| DOI | 10.1002/adfm.202312888 |
| 通讯作者 | Ren, Zhaohui(renzh@zju.edu.cn) ; Liu, Gang(gangliu@imr.ac.cn) |
| 英文摘要 | A large depolarization field in single-domain PbTiO3 is anticipated to drive the spatial separation of photogenerated charge carriers and enable potential active sites for photocatalytic overall water splitting reaction. However, the negatively polarized surface usually cannot provide sufficient active sites for water oxidation to oxygen because of lacking oxygen vacancies, inevitably hindering photocatalytic water splitting reaction. Here, the ferroelectric polarization screening is reconstructed by a heteroepitaxial SrTiO3 film on the positively polarized surface of PbTiO3 nanoplates to generate abundant oxygen vacancies on the negatively polarized surface as active sites for water oxidation. Moreover, it is experimentally and theoretically revealed that the epitaxial SrTiO3 layer on the positively polarized surface is also beneficial for good dispersion of cocatalyst and the formation of low Schottky barrier height at the interface between the heterostructure and the cocatalyst for efficient electron transfer. Compared with pristine PbTiO3, the obtained PbTiO3/SrTiO3 heteroepitaxial structure with the simultaneous regulation of positively and negatively polarized surfaces delivered a greatly enhanced photocatalytic overall water splitting with stoichiometric ratio (2:1) of hydrogen and oxygen evolution by a factor of 15 times. These findings might open up a new avenue for the design of ferroelectric photocatalysts with excellent activity. |
| 资助项目 | National Key Research and Development Program of China ; National Natural Science Foundation of China[51825204] ; National Natural Science Foundation of China[52120105003] ; National Natural Science Foundation of China[52188101] ; National Natural Science Foundation of China[51972312] ; CAS Projects for Young Scientists in Basic Research[YSBR-004] ; International Partnership Program of the Chinese Academy of Sciences[174321KYSB20200005] ; New Cornerstone Science Foundation through the XPLORER PRIZE ; [2021YFA1500800] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001167101900001 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; CAS Projects for Young Scientists in Basic Research ; International Partnership Program of the Chinese Academy of Sciences ; New Cornerstone Science Foundation through the XPLORER PRIZE |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Ren, Zhaohui; Liu, Gang |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Zhejiang Univ, Sch Mat Sci & Engn, State Key Lab Silicon & Adv Semicond Mat, Hangzhou 310027, Peoples R China 3.Univ Queensland, Nanomat Ctr, Sch Chem Engn, Brisbane, Qld 4072, Australia 4.Univ Queensland, Australian Inst Bioengn & Nanotechnol, Brisbane, Qld 4072, Australia 5.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Du, Peipei,Huang, Jie,Ye, Zixing,et al. Reconstructing Ferroelectric Polarization Screening of PbTiO3 by Epitaxial SrTiO3 for Efficient Photocatalytic Overall Water Splitting[J]. ADVANCED FUNCTIONAL MATERIALS,2024:9. |
| APA | Du, Peipei.,Huang, Jie.,Ye, Zixing.,Zhen, Chao.,Liu, Jianan.,...&Liu, Gang.(2024).Reconstructing Ferroelectric Polarization Screening of PbTiO3 by Epitaxial SrTiO3 for Efficient Photocatalytic Overall Water Splitting.ADVANCED FUNCTIONAL MATERIALS,9. |
| MLA | Du, Peipei,et al."Reconstructing Ferroelectric Polarization Screening of PbTiO3 by Epitaxial SrTiO3 for Efficient Photocatalytic Overall Water Splitting".ADVANCED FUNCTIONAL MATERIALS (2024):9. |
入库方式： OAI收割
来源：金属研究所
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