Effect of functionalized carbon as Pt electrocatalyst support on the methanol oxidation reaction
Effect of functionalized carbon as Pt electrocatalyst support on the methanol oxidation reaction
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DOI：
10.1016/j.apcatb.2010.12.031
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发表时间：
2011-02
影响因子：
22.1
通讯作者：
J. Salgado;R. Duarte;L. Ilharco;A. Rego;A. Ferraria;M. Ferreira
中科院分区：
文献类型：
--
作者：
J. Salgado;R. Duarte;L. Ilharco;A. Rego;A. Ferraria;M. Ferreira
FTIRS和XPS光谱表明，在H2SO4+ hno3和hno3溶液氧化处理后，Vulcan XC-72R碳载体亲水性更强，含氧官能团更丰富。因此，在具有良好分散性的功能化碳材料上制备的Pt电催化剂，由于金属纳米颗粒与功能化碳上的氧基之间的协同作用，电催化活性得到了显著提高。
FTIRS and XPS spectra showed that after oxidative treatments using H2SO4+HNO3and HNO3solutions the Vulcan XC-72R carbon support has been found to be more hydrophilic and richer in oxygen-containing functional groups. Consequently, the Pt electrocatalyst prepared on those functionalized carbon materials further to having good dispersion of metal presented a significant improvement of the electrocatalytic activity due to the synergistic effect between the metal nanoparticles and oxygenated groups on functionalized carbon.