Gradient tungsten-doped Bi<sub>3</sub>TiNbO<sub>9</sub> ferroelectric photocatalysts with additional built-in electric field for efficient overall water splitting

doi:10.1038/s41467-023-43837-4

IMR OpenIR

	Gradient tungsten-doped Bi₃TiNbO₉ ferroelectric photocatalysts with additional built-in electric field for efficient overall water splitting
	Huang, Jie 1,2; Kang, Yuyang 1; Liu, Jianan 1,2; Yao, Tingting 1; Qiu, Jianhang 1; Du, Peipei 3; Huang, Biaohong 1; Hu, Weijin 1,2; Liang, Yan 1; Xie, Tengfeng 4; Chen, Chunlin 1; Yin, Li-Chang 1; Wang, Lianzhou 5,6; Cheng, Hui-Ming 1,7; Liu, Gang 1,2
通讯作者	Liu, Gang(gangliu@imr.ac.cn)
	2023-12-01
发表期刊	NATURE COMMUNICATIONS
卷号	14 期号:1 页码:10
摘要	Bi3TiNbO9, a layered ferroelectric photocatalyst, exhibits great potential for overall water splitting through efficient intralayer separation of photogenerated carriers motivated by a depolarization field along the in-plane a-axis. However, the poor interlayer transport of carriers along the out-of-plane c-axis, caused by the significant potential barrier between layers, leads to a high probability of carrier recombination and consequently results in low photocatalytic activity. Here, we have developed an efficient photocatalyst consisting of Bi3TiNbO9 nanosheets with a gradient tungsten (W) doping along the c-axis. This results in the generation of an additional electric field along the c-axis and simultaneously enhances the magnitude of depolarization field within the layers along the a-axis due to strengthened structural distortion. The combination of the built-in field along the c-axis and polarization along the a-axis can effectively facilitate the anisotropic migration of photogenerated electrons and holes to the basal {001} surface and lateral {110} surface of the nanosheets, respectively, enabling desirable spatial separation of carriers. Hence, the W-doped Bi3TiNbO9 ferroelectric photocatalyst with Rh/Cr2O3 cocatalyst achieves an efficient and durable overall water splitting feature, thereby providing an effective pathway for designing excellent layered ferroelectric photocatalysts.
资助者	National Natural Science Foundation of China (National Science Foundation of China) ; National Key R&D 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
DOI	10.1038/s41467-023-43837-4
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (National Science Foundation of China)[2021YFA1500800] ; National Key R&D Program of China[51825204] ; National Key R&D Program of China[52120105003] ; National Key R&D Program of China[52188101] ; National Natural Science Foundation of China[YSBR-004] ; CAS Projects for Young Scientists in Basic Research[174321KYSB20200005] ; International Partnership Program of the Chinese Academy of Sciences ; New Cornerstone Science Foundation through the XPLORER PRIZE
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:001113452500014
出版者	NATURE PORTFOLIO
引用统计	被引频次：47[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/321006/183275
专题	中国科学院金属研究所
通讯作者	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.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Nanjing Univ, Coll Engn & Appl Sci, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China 4.Jilin Univ, Coll Chem, Changchun 130012, Peoples R China 5.Univ Queensland, Sch Chem Engn, Nanomat Ctr, St Lucia, Qld 4072, Australia 6.Univ Queensland, Australian Inst Bioengn & Nanotechnol, St Lucia, Qld 4072, Australia 7.Chinese Acad Sci, Inst Technol Carbon Neutral, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China
推荐引用方式 GB/T 7714	Huang, Jie,Kang, Yuyang,Liu, Jianan,et al. Gradient tungsten-doped Bi₃TiNbO₉ ferroelectric photocatalysts with additional built-in electric field for efficient overall water splitting[J]. NATURE COMMUNICATIONS,2023,14(1):10.
APA	Huang, Jie.,Kang, Yuyang.,Liu, Jianan.,Yao, Tingting.,Qiu, Jianhang.,...&Liu, Gang.(2023).Gradient tungsten-doped Bi₃TiNbO₉ ferroelectric photocatalysts with additional built-in electric field for efficient overall water splitting.NATURE COMMUNICATIONS,14(1),10.
MLA	Huang, Jie,et al."Gradient tungsten-doped Bi₃TiNbO₉ ferroelectric photocatalysts with additional built-in electric field for efficient overall water splitting".NATURE COMMUNICATIONS 14.1(2023):10.