SnO_(2)-C载体对Pd催化剂电催化性能的影响研究

Study on effect of SnO_(2)-C mixed support on electrocatalytic oxidation performance of Pd catalyst in formic acid

以SnO_(2)和Cabot Vulcan XC-72为原料合成了SnO_(2)-C材料,并将其用作担载Pd纳米颗粒的载体,从而制备出Pd/SnO_(2)-C催化剂,并研究其在甲酸环境下的电催化氧化性能,在电化学测试中,催化剂的抗CO中毒能力以及活性有明显的提高,通过进一步优化SnO_(2)在载体材料中所占比例,当SnO_(2)占载体质量20%时,催化剂在甲酸中抗CO中毒能力以及活性达到最高。

SnO_(2)-C material was synthesized from SnO_(2)and Cabot Vulcan XC-72 and used as a carrier to support Pd nanoparticles to prepare Pd/SnO_(2)-C catalyst.Its electrocatalytic oxidation performance in formic acid environment was studied.In electrochemical test,the anti CO poisoning ability and activity of the catalyst were significantly improved.By further optimizing the proportion of SnO_(2)in the carrier material,When SnO_(2)accounts for 20%of the mass of the support,the anti CO poisoning ability and activity of the catalyst in formic acid reach the highest.