The hydrophobic honeycomb inorganic support was mixed with
a solution of HPtCl4 at a 1.37% mass ratio of Pt to the support. The
material was soaked for ∼3 h while ultrasonicated at room temperature;
then, the temperature was increased to 333.2K, and the
acetone was moisturized by ultrasonication. The sample was deoxidized
under a flow of 10% H2/N2 mixed gas at 433.2K for 20 h to
product the catalyst.