气候变化领域集成服务门户(CCPortal): Ta3N5-Nanorods enabling highly efficient water oxidation: Via advantageous light harvesting and charge collection

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DOI	10.1039/d0ee00220h
	Ta3N5-Nanorods enabling highly efficient water oxidation: Via advantageous light harvesting and charge collection
	Pihosh Y.; Minegishi T.; Nandal V.; Higashi T.; Katayama M.; Yamada T.; Sasaki Y.; Seki K.; Suzuki Y.; Nakabayashi M.; Sugiyama M.; Domen K.
发表日期	2020
ISSN	17545692
起始页码	1519
结束页码	1530
卷号	13 期号:5
英文摘要	Efficient conversion of solar energy to hydrogen through photoelectrochemical (PEC) water splitting is a strategic and promising goal towards clean, green and sustainable fuel production. The most important task in PEC water splitting is the development of an efficient and stable photoanode with effective solar light absorption, generation and separation of free charge carriers, and charge carrier transport to the surface for the oxygen evolution reaction; however, such requirements are challenging to achieve simultaneously. Here we show that this problem can be solved in polycrystalline Ta3N5-nanorods (Ta3N5-NRs) that consist of aggregated single crystalline domains. The fabricated highly-conductive photoanode with large grain domains provides enhanced light harvesting because of the efficient generation and extraction of charge carriers, which leads to a completely saturated photocurrent of 9.95 mA cm-2 at 1.05 V (versus RHE) and delivers a solar energy conversion efficiency of 2.72% for single-photon photoanodes. © The Royal Society 2020 of Chemistry.
英文关键词	Carrier mobility; Carrier transport; Hydrogen fuels; Hydrogen production; Light absorption; Nanorods; Particle beams; Photoelectrochemical cells; Solar energy; Water absorption; Charge collection; Free charge carriers; Light-harvesting; Photoelectrochemicals; Polycrystalline; Single-crystalline domains; Sustainable fuels; Water oxidation; Conversion efficiency; inorganic compound; light intensity; oxidation; water treatment
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189731
作者单位	Research Center for Advanced Science and Technology, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8904, Japan; Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan; Department of Chemical System Engineering, School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan; Quantum Computing Center, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa, 223-8522, Japan; Institute of Engineering Innovation, University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo, 113-8656, Japan; University Professors Office, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
推荐引用方式 GB/T 7714	Pihosh Y.,Minegishi T.,Nandal V.,et al. Ta3N5-Nanorods enabling highly efficient water oxidation: Via advantageous light harvesting and charge collection[J],2020,13(5).
APA	Pihosh Y..,Minegishi T..,Nandal V..,Higashi T..,Katayama M..,...&Domen K..(2020).Ta3N5-Nanorods enabling highly efficient water oxidation: Via advantageous light harvesting and charge collection.Energy & Environmental Science,13(5).
MLA	Pihosh Y.,et al."Ta3N5-Nanorods enabling highly efficient water oxidation: Via advantageous light harvesting and charge collection".Energy & Environmental Science 13.5(2020).