Issue 4, 2013
From the journal:

Physical Chemistry Chemical Physics

Mesoporous titanium nitride supported Pt nanoparticles as high performance catalysts for methanol electrooxidation

Minghui Yang,†*a   Zhiming Cui†a  and  Francis J. DiSalvo*a  

* Corresponding authors

a Department of Chemistry and Chemical Biology, Cornell University, Ithaca, USA
E-mail: m.yang@cornell.edu, fjd3@cornell.edu
Fax: +1 607 255 4137
Tel: +1 607 255 7328

Abstract

Mesoporous titanium nitride (TiN) with high surface area and good electrical conductivity was prepared by a novel solid–solid phase separation method from a Zn containing titanium oxide, Zn2TiO4. The PXRD shows single phase rocksalt structure of TiN with a domain size of 25 nm. The conductivity of mesoporous TiN at 35 bar is 395 S cm−1. The Pt/TiN catalyst exhibits more negative onset potential for methanol electrooxidation (0.15 V) than Pt/C (0.22 V), showing a higher intrinsic electrocatalytic activity, while its peak current density (228 mA mg−1 Pt) is ∼1.5 times higher than that of Pt/C (148 mA mg−1 Pt). The Pt/TiN catalyst also demonstrates excellent long-term stability. This work provides an efficient method to prepare mesoporous nitrides as a promising support towards oxidation of small organic molecules in fuel cells.

Graphical abstract: Mesoporous titanium nitride supported Pt nanoparticles as high performance catalysts for methanol electrooxidation

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/C2CP44215A
Article type
Communication
Submitted
26 Nov 2012
Accepted
26 Nov 2012
First published
28 Nov 2012

Phys. Chem. Chem. Phys., 2013,15, 1088-1092

Permissions

Request permissions

Mesoporous titanium nitride supported Pt nanoparticles as high performance catalysts for methanol electrooxidation

M. Yang, Z. Cui and F. J. DiSalvo, Phys. Chem. Chem. Phys., 2013, 15, 1088 DOI: 10.1039/C2CP44215A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements