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为获得具有高催化活性的多元掺杂纳米多孔Pd,将Pd20Ni60P20金属玻璃作为预合金,在H2SO4+H3PO4混合酸溶液中以不同过电位进行电化学脱合金处理,制得Ni和P共掺的Pd基多元纳米多孔金属。该多孔金属的成分和孔径均可通过过电位进行调节。与市售碳负载的纳米Pd催化剂相比,临界电位下脱合金获得的Pd基纳米多孔金属在对甲酸的催化中表现出了更高的催化活性。
In order to obtain multi-doped nano-porous Pd with high catalytic activity, Pd20Ni60P20 metallic glass was pre-alloyed and treated with different overpotential in H2SO4 + H3PO4 mixed acid solution to obtain Pd Polybasic nano-porous metal. The composition and pore size of the porous metal can be adjusted by overpotential. Compared with commercially available carbon supported Pd catalysts, the Pd-based nanoporous metal obtained by desorption at the critical potential shows a higher catalytic activity for the catalysis of formic acid.