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MORPHOLOGY EFFECT OF Ni–Ag/CARBON NANOMATERIALS ON THEIR ELECTROCATALYTIC ACTIVITY FOR GLUCOSE OXIDATION

Author

Listed:
  • RUIZHUO OUYANG

    (University of Shanghai for Science and Technology, Shanghai 200093, P. R. China)

  • WEIWEI LI

    (University of Shanghai for Science and Technology, Shanghai 200093, P. R. China)

  • YANG YANG

    (#x2020;Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200092, P. R. China)

  • WANGYAO ZHANG

    (University of Shanghai for Science and Technology, Shanghai 200093, P. R. China)

  • KAI FENG

    (University of Shanghai for Science and Technology, Shanghai 200093, P. R. China)

  • TIANYU ZONG

    (University of Shanghai for Science and Technology, Shanghai 200093, P. R. China)

  • YARUI AN

    (University of Shanghai for Science and Technology, Shanghai 200093, P. R. China)

  • SHUANG ZHOU

    (#x2021;Tongji University School of Medicine, Shanghai 200092, P. R. China)

  • YUQING MIAO

    (University of Shanghai for Science and Technology, Shanghai 200093, P. R. China)

Abstract

We presented here three carbon-nanomaterials-based modified glassy carbon electrodes (GCE) with Ni–Ag nanohybrid nanoparticles (NPs) deposited upon, including single-wall carbon nanotubes (SWCNTs), multi-wall carbon nanotubes (MWCNTs) and the mesoporous carbons (MPCs), and compared their morphology effects on both Ni–Ag deposition quality and electrocatalytic performances toward Glu oxidation. After being deposited with Ni–Ag NPs, a homogenous surface with very small Ni–Ag NPs was obtained for Ni–Ag/SWCNTs/GCE, while heterogeneous, coarse surfaces with obvious embedment with large Ni–Ag particles were observed for both Ni–Ag/MWCNTs/GCE and Ni–Ag/MPC/GCE. All three modified electrodes were well characterized in terms of surface morphology, electron transfer rate, hydrophilicity, interference resistance, stability, electrocatalytic behaviors as well as practicability in real samples, based on which Ni–Ag/SWCNTs/GCE was always proved to be more advantageous over other two composite electrodes. Such advantage of Ni–Ag/SWCNTs/GCE was attributed to its desirable surface morphology good for Ni–Ag deposition and exposure of as many active sites as possible to Glu oxidation, leading to the extraordinary electrocatalytic performance.

Suggested Citation

  • Ruizhuo Ouyang & Weiwei Li & Yang Yang & Wangyao Zhang & Kai Feng & Tianyu Zong & Yarui An & Shuang Zhou & Yuqing Miao, 2016. "MORPHOLOGY EFFECT OF Ni–Ag/CARBON NANOMATERIALS ON THEIR ELECTROCATALYTIC ACTIVITY FOR GLUCOSE OXIDATION," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 23(06), pages 1-11, December.
  • Handle: RePEc:wsi:srlxxx:v:23:y:2016:i:06:n:s0218625x16500591
    DOI: 10.1142/S0218625X16500591
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