Enhanced core-shell CeO2:Er,Yb@W18O49 heterojunction H-2 generation by multiband emissions of Er ions

doi:10.1088/1361-6528/ab6747

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	Enhanced core-shell CeO2:Er,Yb@W18O49 heterojunction H-2 generation by multiband emissions of Er ions
	Y. Yang,Y. Cong,B. S. Cao,Y. Xiao,J. Y. Shang,Y. Tong,H. M. Zhang,Y. Liu,B. Dong and J. H. Zhang
刊名	Nanotechnology
	2020
卷号	31 期号:16 页码:7
ISSN号	0957-4484
DOI	10.1088/1361-6528/ab6747
英文摘要	The core-shell CeO2:Er,Yb@W18O49 heterojunction is successfully synthesized via the facile solvothermal method. The octahedral CeO2:Er,Yb nanocrystal's core exhibits green (H-2(11/2), S-4(3/2) -> I-4(15/2)), red (F-4(9/2) -> I-4(15/2)) and NIR (I-4(11/2) -> I-4(15/2) and I-4(13/2) -> I-4(15/2)) emission under 980 nm laser diode excitation, and the multiband emissions are absorbed by the W18O49 nanowire's shell, re-exciting its higher energy localized surface plasmon resonances (LSPR). With the excitation of 980 nm, the photocatalytic property of CeO2:Er,Yb@W18O49 for hydrogen (H-2) evolution from ammonia borane (BH3NH3), a three-fold increase compared to W18O49, is researched. The application of natural sunlight for the production of H-2 is studied, and an obvious H-2 production enhancement compared to the use of W18O49 (two-fold) is also observed. This remarkable enhancement in the catalytic activity of CeO2:Er,Yb@W18O49 heterostructures is ascribed to the re-excitation of LSPR by multiband emissions of CeO2:Er,Yb.
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语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/64491]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Y. Yang,Y. Cong,B. S. Cao,Y. Xiao,J. Y. Shang,Y. Tong,H. M. Zhang,Y. Liu,B. Dong and J. H. Zhang. Enhanced core-shell CeO2:Er,Yb@W18O49 heterojunction H-2 generation by multiband emissions of Er ions[J]. Nanotechnology,2020,31(16):7.
APA	Y. Yang,Y. Cong,B. S. Cao,Y. Xiao,J. Y. Shang,Y. Tong,H. M. Zhang,Y. Liu,B. Dong and J. H. Zhang.(2020).Enhanced core-shell CeO2:Er,Yb@W18O49 heterojunction H-2 generation by multiband emissions of Er ions.Nanotechnology,31(16),7.
MLA	Y. Yang,Y. Cong,B. S. Cao,Y. Xiao,J. Y. Shang,Y. Tong,H. M. Zhang,Y. Liu,B. Dong and J. H. Zhang."Enhanced core-shell CeO2:Er,Yb@W18O49 heterojunction H-2 generation by multiband emissions of Er ions".Nanotechnology 31.16(2020):7.