The graphene-supported Pd and Pt catalysts for highly active oxygen reduction reaction in an alkaline condition
The graphene-supported Pd and Pt catalysts for highly active oxygen reduction reaction in an alkaline condition
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DOI：
10.1016/j.elecom.2010.12.008
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发表时间：
2011-02-01
影响因子：
5.4
通讯作者：
Kim, Won Bae
中科院分区：
文献类型：
--
作者：
Seo, Min Ho;Choi, Sung Mook;Kim, Won Bae
已经研究了碱性介质中石墨烯负载的电催化剂的氧还原反应（ORR）。均匀分散的 Pd 纳米粒子，平均直径为 ca.即使在 60 wt.% 的高金属负载量下，也可以通过化学合成在石墨烯片 (GNS) 上成功获得 1.8 nm。在 0.1 M NaOH 溶液中研究了这些催化剂的 ORR 活性，并通过旋转盘电极 (RDE) 技术测定了动力学参数。 GNS 负载的 Pd 催化剂 (Pd/GNS) 对 ORR 显示出极高的催化活性。为了进行比较，还在相同的实验条件下合成并研究了 GNS 负载的 Pt 催化剂（Pt/GNS）。 (C) 2010 Elsevier B.V. 保留所有权利。
The oxygen reduction reaction (ORR) has been studied on graphene-supported electrocatalysts in alkaline media. Uniformly dispersed Pd nanoparticles with a mean diameter of ca. 1.8 nm can be successfully obtained on graphene sheets (GNSs) through chemical synthesis, even at a high metal loading of 60 wt.%. The ORR activity of these catalysts was investigated in a 0.1 M NaOH solution, and the kinetic parameters were determined by the rotating disk electrode (RDE) technique. The GNS-supported Pd catalyst (Pd/GNS) shows significantly high catalytic activity for the ORR. For comparison, the GNS-supported Pt catalyst (Pt/GNS) was also synthesized and investigated under the same experimental conditions. (C) 2010 Elsevier B.V. All rights reserved.