Issue 3, 2016

Decoration of Pt on Cu/Co double-doped CeO2 nanospheres and their greatly enhanced catalytic activity

Abstract

In this paper, we report an efficient strategy for the synthesis of Cu/Co double-doped CeO2 nanospheres (CuxCo1−x–CeO2–Pt, 0 ≤ x ≤ 1), which were fabricated via a simple water–glycol system. The following in situ surface decoration of Pt nanoparticles make these nanospheres highly active for the catalytic reduction of nitrophenol and CO oxidation. Detailed tests show that their catalytic performance strongly depends on the doping components and ion concentration of Cu and Co ions. The best samples of Cu0.50Co0.50–CeO2–Pt and Cu0.34Co0.66–CeO2–Pt demonstrate an excellent turnover frequency (TOF) of more than 450 h−1 after five cycles and retains about 99% conversion by using NH3BH3 as a reductant to reduce nitrophenol. Moreover, Cu0.50Co0.50–CeO2–Pt possesses a much lower light-off and T100 (the temperature for 100% CO oxidation) temperature compared with the other catalysts.

Graphical abstract: Decoration of Pt on Cu/Co double-doped CeO2 nanospheres and their greatly enhanced catalytic activity

Supplementary files

Article information

Article type
Edge Article
Submitted
27 Okt 2015
Accepted
25 Nov 2015
First published
25 Nov 2015
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY license

Chem. Sci., 2016,7, 1867-1873

Decoration of Pt on Cu/Co double-doped CeO2 nanospheres and their greatly enhanced catalytic activity

F. Wang, W. Li, X. Feng, D. Liu and Y. Zhang, Chem. Sci., 2016, 7, 1867 DOI: 10.1039/C5SC04069H

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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