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Electrochemical water splitting on zeolite supported platinum clusters

Authorized Users Only
2004
Authors
Mentus, Slavko
Mojović, Zorica
Cvjetićanin, Nikola
Tešić, Živoslav
Article (Published version)
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Abstract
Platinum was incorporated into the cavities of NaX zeolite by impregnation/thermal decomposition technique, using Pt(II)- acetylacetonate in acetone as an impregnating solution. The platinum-to-zeolite weight ratio amounted to 0.092. The sample was characterized by thermogravimetry, X-ray diffraction and 23Na MAS NMR methods. The mixture of modified zeolite and 10 wt. % of carbon black, in a form of thin layer, was pasted to a glassy carbon surface. With such an electrode material, the electrochemical decomposition of aqueous 2.5 mM H2SO4 + 1 M Na2SO4 solution with hydrogen and oxygen production has been kinetically studied. In comparison with smooth polycrystalline platinum, this electrode material provided an remarkable overvoltage drop for water splitting, primarily due to the acceleration of oxygen evolution reaction.
Keywords:
electrocatalysis / platinum clusters / rotating electrode / zeolite NaX / water splitting
Source:
Journal of New Materials for Electrochemical Systems, 2004, 7, 3, 213-220
Publisher:
  • Ecole Polytechnique Montreal, Montreal
Projects:
  • European Union, Project “Prometeas” (Contract No ICA2-CT-2001-10037)
  • Ministry of Science, Technology and Development of the Republic Serbia (Contract: No 1399)
  • Ministry of Science, Technology and Development of the Republic Serbia (Contract: No 1713)
  • Ministry of Science, Technology and Development of the Republic Serbia (Contract: MHT.2.09.0022.B)

ISSN: 1480-2422

WoS: 000223927700008

Scopus: 2-s2.0-13444267823
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URI
https://cer.ihtm.bg.ac.rs/handle/123456789/3707
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