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Ultrathin Graphitic C3N4 Nanosheets/Graphene Composites: Efficient Organic Electrocatalyst for Oxygen Evolution Reaction

Authors

  • Dr. Jingqi Tian,

    1. State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Changchun 130022, Jilin (China), Fax: (+86) 431-85262065
    2. Graduate School of the Chinese Academy of Sciences, Beijing 100039 (China)
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  • Qian Liu,

    1. State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Changchun 130022, Jilin (China), Fax: (+86) 431-85262065
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  • Prof. Abdullah M. Asiri,

    1. Chemistry Department & Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah 21589 (Saudi Arabia)
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  • Dr. Khalid A. Alamry,

    1. Chemistry Department & Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah 21589 (Saudi Arabia)
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  • Prof. Xuping Sun

    Corresponding author
    1. State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Changchun 130022, Jilin (China), Fax: (+86) 431-85262065
    2. Chemistry Department & Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah 21589 (Saudi Arabia)
    • State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Changchun 130022, Jilin (China), Fax: (+86) 431-85262065===

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Abstract

Graphitic C3N4 (g-C3N4) is used as a low-cost organic oxygen evolution reaction (OER) electrocatalyst. The integration of ultrathin g-C3N4 nanosheets with graphene leads to g-C3N4/graphene composites with high OER activity and good durability. X-ray photoelectron spectroscopy (XPS) studies suggest that the OER activity results from pyridinic-N-related active sites. This catalyst provides an alternative to OER catalysts based on transition metals.

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