Volume 16, Issue 11 p. 2322-2325
Communication

Ultra-small Palladium Nanoparticle Decorated Carbon Nanotubes: Conductivity and Reactivity

Xiuting Li

Xiuting Li

Department of Chemistry, Physical & Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford, OX1 3QZ (United Kingdom), Fax: (+44) 1865-275-410

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Dr. Christopher Batchelor-McAuley

Dr. Christopher Batchelor-McAuley

Department of Chemistry, Physical & Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford, OX1 3QZ (United Kingdom), Fax: (+44) 1865-275-410

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Dr. Kristina Tschulik

Dr. Kristina Tschulik

Department of Chemistry, Physical & Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford, OX1 3QZ (United Kingdom), Fax: (+44) 1865-275-410

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Prof. Dr. Lidong Shao

Prof. Dr. Lidong Shao

Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, 2103 Pingliang Road, Shanghai 200090 (P. R. China)

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Prof. Dr. Richard G. Compton

Corresponding Author

Prof. Dr. Richard G. Compton

Department of Chemistry, Physical & Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford, OX1 3QZ (United Kingdom), Fax: (+44) 1865-275-410

Department of Chemistry, Physical & Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford, OX1 3QZ (United Kingdom), Fax: (+44) 1865-275-410Search for more papers by this author
First published: 10 June 2015
Citations: 10

Graphical Abstract

Small but mighty: Individual multiwalled carbon nanotubes decorated with ultra-small palladium nanoparticles are detected by using the nano-impacts method through studying the proton-reduction reaction for the underpotential deposition of hydrogen on palladium nanoparticles. The high conductivity and reactivity of the decorated carbon nanotubes is directly evidenced.

Abstract

Carbon nanotubes decorated with ultra-small metal nanoparticles are of great value in catalysis. We report that individual multiwalled carbon nanotubes decorated with ultra-small palladium nanoparticles can be detected by using the nano-impacts method. The high conductivity and reactivity of each decorated carbon nanotube is directly evidenced; this is achieved through studying the proton-reduction reaction for the underpotential deposition of hydrogen onto the nanoparticles decorated on the carbon nanotube walls. The reductive spikes from current amplification are analyzed to estimate the approximate length of the decorated carbon nanotubes, revealing that the decorated carbon nanotubes are electroactive along its entire length of several micrometers.