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    Vertically aligned Ta3N5 nanorod arrays for solar-driven photoelectrochemical water splitting

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    Type
    Article
    Authors
    Li, Yanbo
    Takata, Tsuyoshi
    Cha, Dong Kyu
    Takanabe, Kazuhiro cc
    Minegishi, Tsutomu
    Kubota, Jun
    Domen, Kazunari
    KAUST Department
    Imaging and Characterization Core Lab
    Advanced Nanofabrication, Imaging and Characterization Core Lab
    Biological and Environmental Sciences and Engineering (BESE) Division
    KAUST Catalysis Center (KCC)
    Core Labs
    Date
    2012-09-18
    Online Publication Date
    2012-09-18
    Print Publication Date
    2013-01-04
    Permanent link to this record
    http://hdl.handle.net/10754/562329
    
    Metadata
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    Abstract
    A vertically aligned Ta3N5 nanorod photoelectrode is fabricated by through-mask anodization and nitridation for water splitting. The Ta3N5 nanorods, working as photoanodes of a photoelectrochemical cell, yield a high photocurrent density of 3.8 mA cm -2 at 1.23 V versus a reversible hydrogen electrode under AM 1.5G simulated sunlight and an incident photon-to-current conversion efficiency of 41.3% at 440 nm, one of the highest activities reported for photoanodes so far. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
    Citation
    Li, Y., Takata, T., Cha, D., Takanabe, K., Minegishi, T., Kubota, J., & Domen, K. (2012). Vertically Aligned Ta3N5Nanorod Arrays for Solar-Driven Photoelectrochemical Water Splitting. Advanced Materials, 25(1), 125–131. doi:10.1002/adma.201202582
    Sponsors
    This work was supported in part by a Grant-in-Aid for Specially Promoted Research (23000009) from Japan Society for the Promotion of Science (JSPS) and the Advanced Low Carbon Technology Research and Development Program (ALCA) of the Japan Science and Technology Agency (JST). This work was also carried out under the international exchange program of the A3 Foresight Program of JSPS. The author Li acknowledges support from JSPS as a postdoctoral fellow. The authors thank Prof. Shigeo Maruyama, Prof. Reo Kometani, and Dr. Miao Zhong for SEM characterization.
    Publisher
    Wiley
    Journal
    Advanced Materials
    DOI
    10.1002/adma.201202582
    ae974a485f413a2113503eed53cd6c53
    10.1002/adma.201202582
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Imaging and Characterization Core Lab; KAUST Catalysis Center (KCC)

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