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Acta Phys. -Chim. Sin.  2010, Vol. 26 Issue (02): 385-391    DOI: 10.3866/PKU.WHXB20100121
MClx(M=Pd, Fe, Cr) Assisted Synthesis of Ordered Mesoporous Carbon and Their Electrocatalytic Performance after Loading with Pt Nanoparticles
SUN Dun, HE Jian-Ping, ZHOU Jian-Hua, WANG Tao, DI Zhi-Yong, WANG Dao-Jun, DING Xiao-Chun
College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
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The Pt-loading properties of ordered mesoporous carbon (OMC) synthesized with assistance of MClx (M=Pd, Fe, Cr; x=2, 3, 3) were investigated. X-ray diffraction (XRD) and transmission electron microscope (TEM) show that the ordered structure is well-preserved after the introduction of PdCl2. Because of the pyrolysis of organic carbon the OMC-PdCl2 is mainly present in the formof metallic Pd and is homogenously embedded into the scaffold of the OMC. A binary catalyst comprised of metallic Pd and microwave-reduced Pt nanoparticles was also generated. Electrochemical hydrogen absorption-desorption tests reveal that Pt/OMC-MClx possesses excellent catalytic performance and has an electrochemical active surface area (SEA) being as 2-4 times as that of Pt/OMC. Pt/OMC-PdCl2 has the highest SEA of 120.2 m2·g-1 followed by Pt/OMC-CrCl3 and then Pt/OMC-FeCl3. After a long-term cyclic voltammetric test, Pt/OMC-MClx still exhibits excellent catalytic stability and relatively higher catalytic activity as evidenced by a 22%-40% decrease in catalytic activity after one hundred cycles. This work will open up a most promising application in catalysis.

Key wordsMetal salt      Assisted catalysis      Hydrogen absorption-desorption      Catalytic stability      Ordered mesoporous carbon     
Received: 06 July 2009      Published: 27 November 2009
MSC2000:  O648  
Corresponding Authors: HE Jian-Ping     E-mail:
Cite this article:

SUN Dun, HE Jian-Ping, ZHOU Jian-Hua, WANG Tao, DI Zhi-Yong, WANG Dao-Jun, DING Xiao-Chun. MClx(M=Pd, Fe, Cr) Assisted Synthesis of Ordered Mesoporous Carbon and Their Electrocatalytic Performance after Loading with Pt Nanoparticles. Acta Phys. -Chim. Sin., 2010, 26(02): 385-391.

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