Free-Surfactant Synthesis of Graphene-Layered Carbon Composite and Its Utilization for Electrocatalysis
Free-Surfactant Synthesis of Graphene-Layered Carbon Composite and Its Utilization for Electrocatalysis
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DOI：
10.1246/bcsj.20160137
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发表时间：
2016-05
影响因子：
4
通讯作者：
K. Mukawa;Naganobu Oyama;Toshitaka Shinmi;Yasushi Sekine
中科院分区：
文献类型：
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作者：
K. Mukawa;Naganobu Oyama;Toshitaka Shinmi;Yasushi Sekine
采用电场裂解烃类和CO2气氛下连续活化处理的方法合成了一种具有特征的石墨烯-层状碳颗粒复合材料。TEM、N2吸附等温线、拉曼光谱和XPS分析揭示了该复合材料的结构特征。所得复合物中的石墨烯和碳颗粒以纳米级均匀结合，具有介观结构和高的碳纯度。当Pt纳米颗粒负载在复合材料上时，它们表现出作为电催化剂的高性能，因为它们具有更高的电化学活性表面积和更高的抗Pt纳米颗粒烧结的耐久性。所得材料是一种多功能的复合材料，凭借其纳米结构的特点。
We synthesized a characteristic graphene-layered carbon particle composite using pyrolysis of hydrocarbon in an electric field and consecutive activation treatment under CO2 atmosphere. TEM, N2 adsorption isotherm, Raman spectroscopy, and XPS revealed structural features of this unique composite. Graphenes and carbon particles in the resultant composite are combined homogeneously in nanoscale with a mesoscale structure and with high carbon purity. When Pt nanoparticles are loaded on the composite, they show high performance as an electrocatalyst because of their higher electrochemical active surface area and higher durability against the sintering of Pt nanoparticles. Resulting material is a multifunctional composite by virtue of its nanostructural features.