Electro-catalytic performance of PdCo bimetallic hollow nano-spheres for the oxidation of formic acid
Electro-catalytic performance of PdCo bimetallic hollow nano-spheres for the oxidation of formic acid
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PdCo双金属纳米空心球对甲酸氧化的电催化性能
DOI：
10.1007/s10008-010-1018-8
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发表时间：
2010-11-01
影响因子：
2.5
通讯作者：
Lu, Tianhong
中科院分区：
文献类型：
--
作者：
Tang, Yawen;Chen, Yu;Lu, Tianhong
以聚乙二醇为模板，通过简单的同步还原反应合成了PdCo双金属空心纳米球阳极催化剂。透射电镜图像显示，PdCo空心纳米球的平均直径约为80 nm，壳厚约为9.0 nm。电化学测试结果表明，PdCo空心纳米球催化剂对甲酸氧化的电催化活性和稳定性明显优于PdCo固体纳米球和Pd固体纳米球，这是由于PdCo空心纳米球具有独特的化学物理性质，如内部微纳结构、特殊的电子性质以及促进甲酸氧化的直接脱氢路径。
PdCo bimetallic hollow nano-spheres anodic catalyst has been synthesized through a simple simultaneous reduction reaction using polyglycol as template. The images of transmission electron microscopy show that the average diameter of the PdCo hollow nano-spheres is about 80 nm and the shell thickness is about 9.0 nm. The electrochemical measurements indicate that the electro-catalytic activity and stability of PdCo hollow nano-spheres catalyst for formic acid oxidation is much better than that of the PdCo solid nano-spheres and Pd solid nano-spheres, which is ascribed to the unusual chemical and physical properties of the PdCo hollow nano-spheres, such as the interior micro/nano structure, the particular electronic property, and the promotion of the direct dehydrogenation path of formic acid oxidation.