capacitance decay from 513 to 334 F/g for the former and 415 to
advance., These are denoted C1 and C2, respectively. Pt/C1, Pt/
385 for the latter, after 50 cycles.
C2 and Pt/CMK-5 (furfural as carbon precursor) electrocatalysts
[New Carbon Materials 2008;23(3):275–80.]
were prepared by a microwave-assisted polyol process. The microstructure of the samples was characterized by XRD, TEM
doi:10.1016/j.carbon.2008.09.026
and nitrogen adsorption. The performance of Pt loaded samples for methanol electrooxidation was characterized by cyclic voltammetry (CV). Results show that C1 has an ordered hexagonal
Synthesis and electrocatalytic performance of ordered mesoporous carbons produced by a hard templating method using phenolic resol as carbon precursor Xiu Chen, Jian-Ping He, Wang-Juan Dang, Jian-Hua Zhou, Tao Wang, Chuan-Xiang Zhang, Gui-Wang Zhao
(P6mm symmetry) mesoporous structure with a BET surface area of 947 m2/g and a sharp pore size distribution around 4.5 nm. The Pt nanoparticles are uniformly dispersed on C1 with an average diameter of 3 nm, while for. C2 the pores are somewhat disordered and the Pt nanoparticles are agglomerated. The CV curves indicate that Pt/C1 exhibits a higher electrocatalytic activity for
Department of Applied Chemistry, Nanjing University of Aeronautics
methanol electrooxidation than do Pt/C2 and Pt/CMK-5 and a lit-
and Astronautics, Nanjing 210016, China
tle bit lower activity than does commercial E-TEK Pt/C. The electrochemically active surface area of Pt/C1 is 54.2 m2/g.
Ordered mesoporous carbons (OMC) were prepared by high
[New Carbon Materials 2008;23(3):281–8.]
temperature carbonization of in-situ synthesized phenolic resol from phenol and formaldehyde within ordered mesoporous silica SBA-15 and of mixture of SBA-15 and phenolic resol prepared in