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Flame spray pyrolysis of tin oxide-based Pt catalysts for PEM fuel cell applications

Published online by Cambridge University Press:  30 January 2017

Paul I. Dahl ,
Luis C. Colmenares ,
Alejandro O. Barnett ,
Scott Lomas ,
Per E. Vullum ,
Jannicke H. Kvello ,
Julian R. Tolchard ,
Sidsel M. Hanetho  and
Tommy Mokkelbost
Paul I. Dahl*
Affiliation:
SINTEF Materials and Chemistry, NO-7465 Trondheim, Norway
Luis C. Colmenares
Affiliation:
SINTEF Materials and Chemistry, NO-7465 Trondheim, Norway
Alejandro O. Barnett
Affiliation:
SINTEF Materials and Chemistry, NO-7465 Trondheim, Norway
Scott Lomas
Affiliation:
SINTEF Materials and Chemistry, NO-7465 Trondheim, Norway
Per E. Vullum
Affiliation:
SINTEF Materials and Chemistry, NO-7465 Trondheim, Norway
Jannicke H. Kvello
Affiliation:
SINTEF Materials and Chemistry, NO-7465 Trondheim, Norway
Julian R. Tolchard
Affiliation:
SINTEF Materials and Chemistry, NO-7465 Trondheim, Norway
Sidsel M. Hanetho
Affiliation:
SINTEF Materials and Chemistry, NO-7465 Trondheim, Norway
Tommy Mokkelbost
Affiliation:
SINTEF Materials and Chemistry, NO-7465 Trondheim, Norway
*
*Corresponding author: [email protected]

Abstract

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SnO2 doped with Sb and Nb has been investigated for its use as catalyst support materials replacing carbon to enhance PEM fuel cells stability. Nanostructured powders of various doping levels were prepared by flame spray pyrolysis (FSP). The specific requirements of surface area >50 m2g-1 and electronic conductivity >0.01 Scm-1 were obtained, and pore sizes ranging mainly from 10 to 100 nm. Pt particles (9-20 wt.% in loading targeted) of ∼1 nm well dispersed in Sb-doped SnO2 was prepared by a one-step FSP procedure providing microstructures of high interest for further investigations as cathode in PEM fuel cells.

Keywords

flame synthesisPtspray pyrolysis
Type
Articles
Information
MRS Advances , Volume 2 , Issue 28: Nanomaterials , 2017 , pp. 1505 - 1510
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
Copyright © Materials Research Society 2017

Footnotes

2

Current address: IK4-CIDETEC. Unit of Materials for Energy, 2014 San Sebastián, Spain

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