Graphitic C3N4-Pt nanohybrids supported on a graphene network for highly efficient methanol oxidation
Graphitic C3N4-Pt nanohybrids supported on a graphene network for highly efficient methanol oxidation
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DOI：
10.1007/s40843-014-0012-3
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发表时间：
2015-01-01
影响因子：
8.1
通讯作者：
Qu, Liangti
中科院分区：
文献类型：
--
作者：
Hu, Chuangang;Han, Qing;Qu, Liangti
铂异质结构与其单相成分具有明显不同的物理和化学性质。在此，开发了一种智能方法，用于在三维（3D）石墨烯片网络上大规模生产石墨C3N4-Pt（gC（3）N（4）-Pt）异质结构，以实现高效的甲醇氧化。由于导电3D石墨烯网络载体上的gC(3)N(4)-Pt异质结构为甲醇分子提供了良好的活性位点可及性，所得催化剂表现出优异的电催化性能，包括高催化活性、异常的CO耐受性和良好的稳定性，并且优于商用Pt/C和Pt/石墨烯甲醇氧化催化剂。
Pt heterostructures can have distinctly different physical and chemical properties to their single-phase components. Herein, a smart approach was developed for the large-scale production of graphitic C3N4-Pt (gC(3)N(4)-Pt) heterostructures on three-dimensional (3D) graphene sheet networks for highly efficient methanol oxidation. Because the gC(3)N(4)-Pt heterostructures on the conductive 3D graphene network support provide the methanol molecules good accessibility to the active sites, the obtained catalyst exhibits excellent electrocatalytic performance, including high catalytic activity, unusual CO tolerance, and good stability, and is superior to commercial Pt/C and Pt/graphene catalysts for methanol oxidation.