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Metal incorporation into nanoporous carbon

Published online by Cambridge University Press:  15 February 2011

S. J. Henley ,
N. E. P. Woolger ,
J. D. Carey ,
S. R. P. Silva ,
G. M. Fuge  and
M. N. R. Ashfold
S. J. Henley
Affiliation:
Advanced Technology Institute, School of Electronics and Physical Sciences, University of Surrey, Guildford, GU2 7XH, U.K.
N. E. P. Woolger
Affiliation:
Advanced Technology Institute, School of Electronics and Physical Sciences, University of Surrey, Guildford, GU2 7XH, U.K.
J. D. Carey
Affiliation:
Advanced Technology Institute, School of Electronics and Physical Sciences, University of Surrey, Guildford, GU2 7XH, U.K.
S. R. P. Silva
Affiliation:
Advanced Technology Institute, School of Electronics and Physical Sciences, University of Surrey, Guildford, GU2 7XH, U.K.
G. M. Fuge
Affiliation:
School of Chemistry, University of Bristol, Bristol, BS8 1TS, U.K.
M. N. R. Ashfold
Affiliation:
School of Chemistry, University of Bristol, Bristol, BS8 1TS, U.K.
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Abstract

Nanoporous carbon films were deposited by 248 nm pulsed laser ablation of a graphite target in different background pressures of argon (PAr). The morphology changed from smooth, high-density amorphous carbon films at PAr = 20 mTorr to ultra-low density nanoporous material at PAr = 380 mTorr. Subsequently, the nanostructural, chemical and electrical properties of metal containing nanoporous carbon samples were investigated by ablating graphite targets containing known contents of Ni and Co. We demonstrate how the ablation plume dynamics affect both the nanostructure of the material and the incorporation of metal atoms. The suitability of these functionalised ultra-low density materials for gas sensing applications is discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 876: Symposium A – Nanoporous and Nanostructured Materials for Catalysis, Sensor and Gas Separation Applications , 2005 , R10.3
Copyright
Copyright © Materials Research Society 2005

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