Our paper reporting hydrosilylation catalyzed by supported Pd-Au alloy catalysts was published in ACS Catalysis (ACS).
「Supported Palladium－Gold Alloy Catalysts for Efficient and Selective Hydrosilylation under Mild Conditions; Isolated Single Palladium Atoms in Alloy Nanoparticles as the Main Active Site」Hiroki Miura, Keisuke Endo, Ryoichi Ogawa, Tetsuya Shishido
ACS Catalysis, 2017, 7, 1543－1553, DOI: 10.1021/acscatal.6b02767
Supported Pd-Au alloy catalysts were developed for the highly efficient and selective hydrosilylation of α,β-unsaturated ketones and alkynes. The Pd/Au atomic ratio of the Pd-Au alloy and the supporting material affected the catalytic activity, and supported Pd-Au alloy nanoparticles with a low Pd/Au atomic ratio functioned as highly active heterogeneous catalysts under mild reaction conditions. Structural characterization of supported Pd-Au alloy catalysts by X-ray diffraction, X-ray absorption spectroscopy (XAS), and transmission electron microscopy revealed the formation of random Pd-Au alloy nanoparticles with a uniform size of around 3 nm on the support. Furthermore, XAS and X-ray photoelectron spectroscopy elucidated the charge transfer from Pd to Au and the formation of isolated single Pd atoms in random Pd-Au alloys with a low Pd/Au ratio, which enabled efficient hydrosilylation of a variety of substrates under mild reaction conditions.
