부산대학교 도서관

In this study we show that using AuPd nanoparticles supported on a commercial titanium silicate (TS‐1) prepared using a wet co‐impregnation method it is possible to produce hydrogen peroxide from molecular H2 and O2 via the direct synthesis reaction. The effect of Au: Pd ratio and calcination temperature is evaluated as well as the role of Pt addition to the AuPd supported catalysts. The effect of Pt addition to AuPt nanoparticles is observed to result in a significant improvement in catalytic activity and selectivity to hydrogen peroxide with detailed characterisation indicating this is a result of selectively tuning the ratio of Pd oxidation states. When three metals are better than two: The introduction of small quantities of Pt into AuPd nanoparticles supported on the titanosilicate TS‐1 significantly enhances catalytic activity and selectivity towards H2O2 synthesis from molecular H2 and O2 through modification of Pd electronic structure. [ABSTRACT FROM AUTHOR]