One-pot synthesis of reduced graphene oxide supported hollow Ag@Pt core–shell nanospheres with enhanced electrocatalytic activity for ethylene glycol oxidation
One-pot synthesis of reduced graphene oxide supported hollow Ag@Pt core–shell nanospheres with enhanced electrocatalytic activity for ethylene glycol oxidation
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DOI：
10.1039/c3ta13935b
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发表时间：
2014-02
影响因子：
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通讯作者：
Jiening Zheng;Jing-Jing Lv-Jing;Shan-Shan Li-Shan;Meng-Wei Xue;Ai-Jun Wang;Jiu-Ju Feng
中科院分区：
文献类型：
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作者：
Jiening Zheng;Jing-Jing Lv-Jing;Shan-Shan Li-Shan;Meng-Wei Xue;Ai-Jun Wang;Jiu-Ju Feng
以乙二醇（EG）为还原剂，十二烷基硫酸钠（SDS）为软模板剂，采用溶剂热法一锅法制备了还原氧化石墨烯（RGO）负载的Ag@Pt核壳纳米球（hAg@Pt）。控制实验表明，Pt-Ag前体的摩尔比，SDS的量，RGO的存在下，和反应温度是关键的最终纳米复合材料。结果表明，hAg@Pt-RGO对乙二醇的电催化活性和稳定性都有所提高，有望成为直接醇类燃料电池的潜在电催化剂。
In this study, a simple, facile and one-pot solvothermal method was developed for preparation of reduced graphene oxide (RGO) supported hollow Ag@Pt core–shell nanospheres (hAg@Pt), using ethylene glycol (EG) as a reducing agent and sodium dodecyl sulfate (SDS) as a soft template. Control experiments demonstrated that the molar ratios of the Pt–Ag precursors, the amount of SDS, the presence of RGO, and the reaction temperature were critical to the final nanocomposites. The as-prepared hAg@Pt–RGO showed the improved electrocatalytic activity and durability toward ethylene glycol oxidation, which can serve as a promising potential electrocatalyst in direct alcohol fuel cells.