Pd-Sn Alloy Catalysts for Direct Synthesis of Hydrogen Peroxide from H and O in a Microchannel Reactor.

Direct synthesis of hydrogen peroxide (DSHP) from H and O offers a promising alternative to the present commercial anthraquinone method, but it still faces the challenges of low HO productivity, low stability of catalysts, and high risk of explosion. Herein, by loading in a microchannel reactor, the as-synthesized Pd-Sn alloy materials exhibit high catalytic activity for HO production, presenting a HO productivity of 3124 g kg h. The doped Sn atoms on the surface of Pd not only facilitate the release of HO but also effectively slow down the deactivation of catalysts.