Abstract
AgNPs@g-C3N4 composite was synthesized from Ag-containing sol and g-C3N4 powder by the ultrasonic-assisted self-assembly method. The composite has hierarchical pore size distributions, which will be beneficial to the ion transport with different size. Ag nanoparticles with the size of 5 nm successfully adhere on the surface of g-C3N4. The AgNPs@g-C3N4 composite has excellent specific capacitance and specific power performance for the supercapacitors as an electrode material. The specific capacitance of composite is 4 times greater than that of g-C3N4. It can be ascribed to the introduction of Ag nanoparticles that the internal resistance of the composite is significantly decreased.
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Acknowledgment
This work is supported by Six Talents Peak Project in Jiangsu Province (2011-ZBZZ045), Jiangsu Province Ordinary University Graduate Student Innovation Project (17A037), Key R&D Program of Zhenjiang (GY 2018016).
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Wang, D.F., Wu, Y.Z., Yan, X.H. et al. Self-assembly synthesis of AgNPs@g-C3N4 composite with enhanced electrochemical properties for supercapacitors. MRS Communications 9, 719–725 (2019). https://doi.org/10.1557/mrc.2019.25
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DOI: https://doi.org/10.1557/mrc.2019.25