The supported catalyst P1 was prepared with hydrazine hydrate and potassium borohydride as(co-reducers) in a mixed solvent consisting of methanol,ethanol and water in a proper proportion.

• 采用水合肼和硼氢化钾为共还原剂,适当比例的甲醇、乙醇和水的混合物为溶剂,制备得到负载催化剂P1。