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  4. Graphene nanoplatelets supported metal nanoparticles for electrochemical oxidation of hydrazine
 
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2013
Journal Article
Titel

Graphene nanoplatelets supported metal nanoparticles for electrochemical oxidation of hydrazine

Abstract
Graphene nanoplatelets have been applied as the support to electrodeposit monometallic Au and Pd nanoparticles as well as bimetallic Au-Pd nanoparticles. These nanoparticles have been characterized with scanning electron microscope, energy dispersive X-ray spectroscopy, X-ray diffraction spectroscopy, and electrochemical techniques. They are further utilized as the catalysts for electrochemical oxidation of hydrazine. The oxidation peak potential is -0.35 and 0.53 V (vs. SCE) when monometallic Pd and Au nanoparticle are used as the catalysts. When bimetallic nanoparticles are applied as the catalyst, their composition affects the peak potential and peak current for the oxidation of hydrazine. Higher oxidation current is achieved when bimetallic Au-Pd nanoparticles with an atomic ratio of 3:1 are deposited on graphene nanoplatelets. Metal nanoparticle-loaded graphene nanoplatelets are thus novel platforms for electrocatalytic, electroanalytical, environmental, and related applications.
Author(s)
Wan, Q.J.
Liu, Y.
Wang, Z.H.
Wei, W.
Li, B.B.
Zou, J.
Yang, N.
Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Zeitschrift
Electrochemistry communications
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DOI
10.1016/j.elecom.2013.01.007
Language
English
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Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Tags
  • graphene nanoplatelets (GNPs)

  • metal nanoparticles

  • electrochemical oxidation of hydrazine

  • electrodeposition

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