| Title | The direct synthesis of hydrogen peroxide from H2 and O2 using Pd-Ni/TiO2 catalysts |
|---|---|
| ID_Doc | 29142 |
| Authors | Crole, DA; Underhill, R; Edwards, JK; Shaw, G; Freakley, SJ; Hutchings, GJ; Lewis, RJ |
| Title | The direct synthesis of hydrogen peroxide from H2 and O2 using Pd-Ni/TiO2 catalysts |
| Year | 2020 |
| Published | Philosophical Transactions Of The Royal Society A-Mathematical Physical And Engineering Sciences, 378.0, 2176 |
| Abstract | The direct synthesis of hydrogen peroxide (H2O2) from molecular H-2 and O-2 offers an attractive, decentralized alternative to production compared to the current means of production, the anthraquinone process. Herein we evaluate the performance of a 0.5%Pd-4.5%Ni/TiO2 catalyst in batch and flow reactor systems using water as a solvent at ambient temperature. These reaction conditions are considered challenging for the synthesis of high H2O2 concentrations, with the use of sub-ambient temperatures and alcohol co-solvents typical. Catalytic activity was observed to be stable to prolonged use in multiple batch experiments or in a flow system, with selectivities towards H2O2 of 97% and 85%, respectively. This study was carried out in the absence of halide or acid additives that are typically used to inhibit sequential H2O2 degradation reactions showing that this Pd-Ni catalyst has the potential to produce H2O2 selectively. This article is part of a discussion meeting issue 'Science to enable the circular economy'. |
| https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.2020.0062 |
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