One-step Synthesis of Pt Nanoparticles Highly Loaded on Graphene Aerogel as Durable Oxygen Reduction Electrocatalyst
One-step Synthesis of Pt Nanoparticles Highly Loaded on Graphene Aerogel as Durable Oxygen Reduction Electrocatalyst
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一步合成石墨烯气凝胶上高负载 Pt 纳米颗粒作为耐用的氧还原电催化剂
DOI：
10.1016/j.electacta.2014.11.107
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发表时间：
2015-01
影响因子：
6.6
通讯作者：
Hui Yang
中科院分区：
文献类型：
--
作者：
Qinghong Huang;Feifei Tao;Liangliang Zou;Ting Yuan;Zhiqing Zou;Haifeng Zhang;Xiaogang Zhang;Hui Yang
合成高活性和耐用的Pt基催化剂，具有高金属负载量的燃料电池的应用仍然是一个很大的挑战。三维石墨烯气凝胶（GA）不仅具有石墨烯的固有性质，而且具有丰富的孔结构，可以锚定金属纳米颗粒，适合作为金属催化剂的载体。这项工作报告了一个简单和温和的一步共还原合成的Pt纳米粒子高度负载在3D GA和使用作为持久的氧还原催化剂。X射线衍射和TEM测量都证实了Pt纳米颗粒（约. 60重量% Pt负载），平均直径约为100 μ m。3.2纳米均匀地装饰在均匀互连的3D GA的孔上，即使在300 °C下热处理之后。这种Pt/GA催化剂表现出显著增强的电催化活性和改善的氧还原反应的耐久性。催化活性和耐久性的提高可能与GA独特的三维结构、Pt纳米颗粒的均匀分散以及Pt纳米颗粒与GA之间的相互作用有关。GA负载的Pt可以用作燃料电池应用的高活性催化剂。
Synthesis of highly active and durable Pt based catalysts with a high metal loading for fuel cells’ applications still remains a big challenge. The three-dimensional (3D) graphene aerogel (GA) not only possess the intrinsic property of graphene, but also have abundant pore architecture for anchoring metal nanoparticles, thus would be suitable as metal catalysts’ support. This work reports a simple and mild one-step co-reduction synthesis of Pt nanoparticles highly loaded on 3D GA and the use as durable oxygen reduction catalyst. Both X-ray diffraction and TEM measurements confirm that Pt nanoparticles (ca. 60 wt.% Pt loading) with an average diameter of ca. 3.2 nm are uniformly decorated on the homogeneously interconnected pores of 3D GA even after a heat treatment at 300 °C. Such a Pt/GA catalyst exhibits significantly enhanced electrocatalytic activity and improved durability for the oxygen reduction reaction. The enhancement in both catalytic activity and durability may result from the unique 3-D architecture structure of GA, the uniform dispersion of Pt nanoparticles, and the interaction between the Pt nanoparticles and GA. The GA-supported Pt can serve as a highly active catalyst for fuel cell applications.
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增强燃料电池电催化活性的石墨烯负载Pt的制备及表征
影响因子：
9.2
作者：
Xin, Yuchen;Liu, Jian-guo;Zhou, Yong;Liu, Wenming;Gao, Jian;Xie, Yun;Yin, Ying;Zou, Zhigang
通讯作者：
Zou, Zhigang
在单壁碳纳米管上制备高负载量的几乎单分散的 Pt 纳米颗粒用于甲醇氧化
DOI：
10.1016/j.elecom.2006.11.003
发表时间：
2007-04
期刊：
Electrochem. Commun.
影响因子：
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作者：
曹剑瑜;张熙贵;Shiunchin C. Wang;杨辉;Daniel L. Akins;杜冲;Philippe Mercier
通讯作者：
Philippe Mercier
影响因子：
19
作者：
Shin, Hyeon-Jin;Kim, Ki Kang;Lee, Young Hee
通讯作者：
Lee, Young Hee
影响因子：
9.2
作者：
Liangliang Zou;Jing Guo;Juanyi Liu;Z. Zou;D. Akins;Hui Yang
通讯作者：
Liangliang Zou;Jing Guo;Juanyi Liu;Z. Zou;D. Akins;Hui Yang
影响因子：
8.6
作者：
Kovtyukhova, NI;Ollivier, PJ;Gorchinskiy, AD
通讯作者：
Gorchinskiy, AD