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    MOF-derived Co-doped nickel selenide/C electrocatalysts supported on Ni foam for overall water splitting

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    Type
    Article
    Authors
    Ming, Fangwang
    Liang, Hanfeng cc
    Shi, Huanhuan
    Xu, Xun
    Mei, Gui
    Wang, Zhoucheng
    KAUST Department
    Materials Science and Engineering Program
    Physical Sciences and Engineering (PSE) Division
    Date
    2016
    Permanent link to this record
    http://hdl.handle.net/10754/622432
    
    Metadata
    Show full item record
    Abstract
    It is of prime importance to develop dual-functional electrocatalysts with good activity for overall water splitting, which remains a great challenge. Herein, we report the synthesis of a Co-doped nickel selenide (a mixture of NiSe and NiSe)/C hybrid nanostructure supported on Ni foam using a metal-organic framework as the precursor. The resulting catalyst exhibits excellent catalytic activity toward the oxygen evolution reaction (OER), which only requires an overpotential of 275 mV to drive a current density of 30 mA cm. This overpotential is much lower than those reported for precious metal free OER catalysts. The hybrid is also capable of catalyzing the hydrogen evolution reaction (HER) efficiently. A current density of -10 mA cm can be achieved at 90 mV. In addition, such a hybrid nanostructure can achieve 10 and 30 mA cm at potentials of 1.6 and 1.71 V, respectively, along with good durability when functioning as both the cathode and the anode for overall water splitting in basic media.
    Citation
    Ming F, Liang H, Shi H, Xu X, Mei G, et al. (2016) MOF-derived Co-doped nickel selenide/C electrocatalysts supported on Ni foam for overall water splitting. J Mater Chem A 4: 15148–15155. Available: http://dx.doi.org/10.1039/c6ta06496e.
    Sponsors
    The authors thank the National Natural Science Foundation of China (No. 51372212) for financial support.
    Publisher
    Royal Society of Chemistry (RSC)
    Journal
    J. Mater. Chem. A
    DOI
    10.1039/c6ta06496e
    ae974a485f413a2113503eed53cd6c53
    10.1039/c6ta06496e
    Scopus Count
    Collections
    Articles; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program

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