Issue 23, 2017

Chemically designed CeO2 nanoboxes boost the catalytic activity of Pt nanoparticles toward electro-oxidation of formic acid

Abstract

A comprehensive study was carried out on platinum nanoparticle decorated CeO2 nanoboxes as an efficient catalyst towards electro-oxidation of formic acid. We herein report the effect of different parameters such as the size and shape of CeO2 nanoboxes, thickness of the CeO2 shell, mode of attachment of Pt nanoparticles on the CeO2 surface and screening of Pt loading on the electro-oxidation of formic acid. A facile low temperature aqueous phase method was utilized for the synthesis of CeO2 nanoboxes using Cu2O nanocubes as a soft sacrificial template. Owing to the exposed active surface area and optimum shell thickness, the smallest CeO2 boxes loaded with Pt (50 nm) showed excellent activity for formic acid oxidation with a current density of 4.52 mA cm−2. The highly porous hollow nanoboxes act as a bifunctional support for Pt nanoparticles. The catalyst also exhibited significant activity in the oxidation of other small molecules such as ethanol and methanol.

Graphical abstract: Chemically designed CeO2 nanoboxes boost the catalytic activity of Pt nanoparticles toward electro-oxidation of formic acid

Supplementary files

Article information

Article type
Communication
Submitted
26 জুলাই 2016
Accepted
18 অক্টো. 2016
First published
18 অক্টো. 2016

J. Mater. Chem. A, 2017,5, 11572-11576

Chemically designed CeO2 nanoboxes boost the catalytic activity of Pt nanoparticles toward electro-oxidation of formic acid

S. Ramani, S. Sarkar, V. Vemuri and S. C. Peter, J. Mater. Chem. A, 2017, 5, 11572 DOI: 10.1039/C6TA06339J

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