Issue 3, 2011

Ultrahigh stable carbon riveted Pt/TiO2–C catalyst prepared by in situ carbonized glucose for proton exchange membrane fuel cell

Abstract

Highly active Pt/TiO2–C catalyst has been synthesized by a microwave-assisted polyol process. The obtained Pt/TiO2–C sample was characterized by XRD, EDAX, HRTEM, XPS, and electrochemical measurements. The results show that the Pt/TiO2–C catalyst possesses substantially enhanced stability and identical activity in comparison with Pt/C prepared by the same procedure. Furthermore, carbon riveted Pt/TiO2–C composite with a novel structure based on in situ carbonization of the glucose was designed and synthesized. The results of TEM and electrochemical measurements indicate that the carbon riveted Pt/TiO2–C catalyst has much greater stability than Pt/TiO2–C and Pt/C with similar activity. The significantly enhanced stability for carbon riveted Pt/TiO2–C catalyst is ascribed to: (1) the excellent stability of anatase TiO2; (2) the strong metal-support interaction between Pt and TiO2; (3) the anchoring effect of the carbon layers formed during the carbon riveting process. These findings indicate that carbon riveted Pt/TiO2–C is a promising catalyst for proton exchange membrane fuel cells which are under long term operation.

Graphical abstract: Ultrahigh stable carbon riveted Pt/TiO2–C catalyst prepared by in situ carbonized glucose for proton exchange membrane fuel cell

Article information

Article type
Paper
Submitted
24 Sep 2010
Accepted
11 Nov 2010
First published
06 Dec 2010

Energy Environ. Sci., 2011,4, 728-735

Ultrahigh stable carbon riveted Pt/TiO2–C catalyst prepared by in situ carbonized glucose for proton exchange membrane fuel cell

Z. Jiang, Z. Wang, Y. Chu, D. Gu and G. Yin, Energy Environ. Sci., 2011, 4, 728 DOI: 10.1039/C0EE00475H

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