Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 9, 2012
Previous Article Next Article

Titanium nitride–carbon nanotube core–shell composites as effective electrocatalyst supports for low temperature fuel cells

Author affiliations

Abstract

Titanium nitride–carbon nanotube (TiN–CNT) core–shell nanocomposites were developed by a simplistic two step fabrication procedure and characterized by transmission electron microscopy, X-ray diffraction and thermogravimetric analysis. These materials were utilized as platinum nanoparticle electrocatalyst supports (Pt/TiN–CNT) for the oxygen reduction reaction (ORR) and methanol oxidation reaction (MOR), two important low temperature fuel cell processes. Improved ORR and MOR activities were demonstrated for Pt/TiN–CNTs compared with state of the art commercial Pt/C. Moreover, enhanced CO tolerance towards the MOR was demonstrated attributed to the interaction occurring between adsorbed CO molecules and the TiN–CNT supports. TiN–CNTs are thus presented as highly promising, novel electrocatalyst support materials with enhanced ORR and MOR performance attributed to their anisotropic morphology, enhanced electronic properties and conductivity, and distinct catalyst–support interactions.

Graphical abstract: Titanium nitride–carbon nanotube core–shell composites as effective electrocatalyst supports for low temperature fuel cells

Back to tab navigation

Article information


Submitted
05 Oct 2011
Accepted
13 Dec 2011
First published
16 Jan 2012

J. Mater. Chem., 2012,22, 3727-3732
Article type
Paper

Titanium nitride–carbon nanotube core–shell composites as effective electrocatalyst supports for low temperature fuel cells

D. C. Higgins, J. Choi, J. Wu, A. Lopez and Z. Chen, J. Mater. Chem., 2012, 22, 3727
DOI: 10.1039/C2JM15014J

Search articles by author

Spotlight

Advertisements