Choudhary, Vasant R. ; Jana, Prabhas ; Bhargava, S. K. (2008) Direct H2-to-H2O2 oxidation in aqueous acidic medium containing Br promoter over Pd/Al2O3 and Pd/C catalysts thermally pretreated under different conditions Catalysis Letters, 125 (3-4). pp. 296-301. ISSN 1011-372X
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Official URL: http://www.springerlink.com/index/r4r687442701g735...
Related URL: http://dx.doi.org/10.1007/s10562-008-9482-9
Abstract
Influence of thermal pretreatments (under N2, air or H2 gas atmosphere at 500 ° C or 700 ° C) has been investigated for the Pd/H2O2 and Pd/Carbon catalysts in terms of its effect on their Pd particle size and performance in the H2-to-H2O2 oxidation andH2O2 destruction (by decomposition and/or hydrogenation) reactions in aqueous acidic medium containing Br promoter. The influence on the net H2O2 formation is found to depend strongly upon the catalyst support due to support-Pd cluster interactions. For both the catalysts, the thermal treatments (except in air) caused a large increase in their Pd particle size. The increase in Pd particle size caused an increase in the H2O2 formation activity of Pd/H2O2 but a decrease in the H2O2 formation activity of Pd/C.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Springer. |
| Keywords: | Hydrogen Peroxide; Oxidation of H2 to H2O2; Pd/ Al2O3; Pd/C |
| ID Code: | 88556 |
| Deposited On: | 29 Mar 2012 04:41 |
| Last Modified: | 29 Mar 2012 04:41 |
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