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    Surface generation of a cobalt-derived water oxidation electrocatalyst developed in a neutral HCO3 -/CO2 system

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    Type
    Article
    Authors
    Joya, Khurram Saleem
    Takanabe, Kazuhiro cc
    De Groot, Huub J M
    KAUST Department
    Catalysis for Energy Conversion (CatEC)
    Chemical Science Program
    KAUST Catalysis Center (KCC)
    Physical Science and Engineering (PSE) Division
    Date
    2014-06-04
    Online Publication Date
    2014-06-04
    Print Publication Date
    2014-11
    Permanent link to this record
    http://hdl.handle.net/10754/563590
    
    Metadata
    Show full item record
    Abstract
    Neutral HCO3 -/CO2 is a new electrolyte system for in situ generation of robust and efficient Co-derived (Co-Ci) water oxidation electrocatalysts. The Co-Ci/indium tin oxide system shows a remarkable 2.0 mA cm-2 oxygen evolution current density that is sustained for several hours. 7.5 nmol of electroactive species per cm2 generates about 109 μmol of O2 at a rate of 0.51 per mol of catalyst per second.
    Citation
    Joya, K. S., Takanabe, K., & de Groot, H. J. M. (2014). Surface Generation of a Cobalt-Derived Water Oxidation Electrocatalyst Developed in a Neutral HCO3−/CO2System. Advanced Energy Materials, 4(16), 1400252. doi:10.1002/aenm.201400252
    Sponsors
    K.S.J. acknowledges research funding from the Higher Education Commission (HEC), Government of Pakistan and Leiden University/BioSolar Cells for the research support and facilities. The authors are thankful to Dr. Marcel Hesselberth for the SEM analyzes and Mr. Verhoeven Tiny is gratefully acknowledged for the XPS experiments. The help of Dr. Shahid Rasool and Angel Garcia (KCC, KAUST) in performing online GC measurements for O<INF>2</INF> characterization, and Dr. Naeem-Ur-Rehman Minhas (Characterization Lab, KAUST) for EDX analyzes is greatly acknowledged.
    Publisher
    Wiley
    Journal
    Advanced Energy Materials
    DOI
    10.1002/aenm.201400252
    10.1002/aenm.201470086
    ae974a485f413a2113503eed53cd6c53
    10.1002/aenm.201400252
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Chemical Science Program; KAUST Catalysis Center (KCC)

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