Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Direct synthesis of hydrogen peroxide using Au-Pd-exchanged and supported heteropolyacid catalysts at ambient temperature using water as solvent

Ntainjua, Edwin, Piccinini, Marco, Freakley, Simon J., Pritchard, James Charles, Edwards, Jennifer Kelly, Carley, Albert Frederick and Hutchings, Graham John 2012. Direct synthesis of hydrogen peroxide using Au-Pd-exchanged and supported heteropolyacid catalysts at ambient temperature using water as solvent. Green Chemistry 14 (1) , pp. 170-181. 10.1039/c1gc15863e

Full text not available from this repository.

Abstract

The direct synthesis of hydrogen peroxide from molecular H(2) and O(2) represents a green and economic alternative to the current anthraquinone process used for the industrial production of H(2)O(2). In order for the direct process to compete with the anthraquinone process, there is a need for enhanced H(2)O(2) yields and H(2) selectivity in the process. We show that Au-Pd-exchanged and supported Cs-containing heteropolyacid catalysts with the Keggin structure are considerably more effective in achieving high H(2)O(2) yields in the absence of acid or halide additives than previously reported catalysts. The Au-Pd-exchanged Cs-heteropolyacid catalysts also show superior H(2)O(2) synthesis activity under challenging conditions (ambient temperature, water-only solvent and CO(2)-free reaction gas). Au plays a crucial role in achieving the improved performance of these heteropolyacid-based catalysts. The heteropolyacid limits the subsequential hydrogenation/decomposition of H(2)O(2).

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Cardiff Catalysis Institute (CCI)
Subjects: Q Science > QD Chemistry
Publisher: Royal Society of Chemistry
ISSN: 1463-9262
Last Modified: 08 Jan 2018 21:33
URI: http://orca.cf.ac.uk/id/eprint/26042

Citation Data

Cited 40 times in Google Scholar. View in Google Scholar

Cited 41 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item Edit Item