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    Efficient Solar-to-Hydrogen Conversion Efficiency at pH 7 Based on a PV-EC Cell with an Oligomeric Molecular Anode.

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    Description:
    Accepted manuscript
    Embargo End Date:
    2021-12-01
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    2021-12-01
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    Type
    Article
    Authors
    Shi, Yuanyuan cc
    Hsieh, Tsung-Yu
    Hoque, Md Asmaul
    Cambarau, Werther
    Narbey, Stéphanie
    Gimbert-Suriñach, Carolina cc
    Palomares, Emilio cc
    Lanza, Mario cc
    Llobet, Antoni cc
    KAUST Department
    Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi Arabia
    Date
    2020-12-01
    Embargo End Date
    2021-12-01
    Submitted Date
    2020-09-09
    Permanent link to this record
    http://hdl.handle.net/10754/666261
    
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    Abstract
    In the urgent quest for green energy vectors, the generation of hydrogen by water splitting with sunlight occupies a preeminent standpoint. The highest solar-to-hydrogen (STH) efficiencies have been achieved with photovoltaic-electrochemical (PV-EC) systems. However, most PV-EC water-splitting devices are required to work at extreme conditions, such as in concentrated solutions of HClO$_{4}$ or KOH or under highly concentrated solar illumination. In this work, a molecular catalyst-based anode is incorporated for the first time in a PV-EC configuration, achieving an impressive 21.2% STH efficiency at neutral pH. Moreover, as opposed to metal oxide-based anodes, the molecular catalyst-based anode allows us to work with extremely small catalyst loadings (
    Citation
    Shi, Y., Hsieh, T.-Y., Hoque, M. A., Cambarau, W., Narbey, S., Gimbert-Suriñach, C., … Llobet, A. (2020). High Solar-to-Hydrogen Conversion Efficiency at pH 7 Based on a PV-EC Cell with an Oligomeric Molecular Anode. ACS Applied Materials & Interfaces. doi:10.1021/acsami.0c16235
    Sponsors
    This work has been supported by the Young 1000 Global Talent Recruitment Program of the Ministry of Education of China, the National Natural Science Foundation of China (grant nos. 61502326, 41550110223, and 11661131002), the Jiangsu Government (grant no. BK20150343), and the Ministry of Finance of China (grant no. SX21400213). The Collaborative Innovation Center of Suzhou Nano Science & Technology, the Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, and the Priority Academic Program Development of Jiangsu Higher Education Institutions are also acknowledged. Supports from Ministerio de Ciencia, Innovacion y Universidades and FEDER (PID2019-111617RB-I00), AGAUR 2017-SGR-1631, Ministerio de Ciencia e Innovacion for a Severo Ochoa Excellence Accreditation grant 2020-2023 (CEX2019-000925-S, MIC/AEI)”, and EU-funded ITN eSCALED (Grant agreement ID:765376) are gratefully acknowledged. Shaochuan Chen from RWTH Aachen University is acknowledged for drawing some of the 3D images.
    Publisher
    American Chemical Society (ACS)
    Journal
    ACS applied materials & interfaces
    DOI
    10.1021/acsami.0c16235
    PubMed ID
    33258374
    Additional Links
    https://pubs.acs.org/doi/10.1021/acsami.0c16235
    ae974a485f413a2113503eed53cd6c53
    10.1021/acsami.0c16235
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