%0 Journal Article
%T Synthesis, Characterization and Electrocatalytic Performance of Pd/CMK-3 for Formic Acid Oxidation<br>Pd/CMK-3的合成、表征及对甲酸的电催化氧化性能研究
%A HUAN Zhong-ke
%A ZONG En-min
%A WEI Dan
%A WAN Hai-qin
%A ZHENG Shou-rong
%A XU Zhao-yi
%A <br>还中科
%A 宗恩敏
%A 魏丹
%A 万海勤
%A 郑寿荣
%A 许昭怡
%J 环境科学
%D 2012
%I 
%X The synthesis of mesoporous carbons CMK-3 was implemented using SBA-15 samples as the hard templates and sucrose as the carbon source. Ordered mesoporous carbon CMK-3 supported palladium catalyst with a loading amount of 20% (Pd/CMK-3) was prepared by a complexing reduction method. XRD and TEM results showed that the p6mm hexagonal symmetric pore structures of CMK-3 were highly ordered and the Pd nanoparticles with the average size of 4.2 nm and 4.5 nm were well dispersed on CMK-3 and activated carbon (AC) surfaces respectively. Raman results revealed that CMK-3 presented higher graphitization and a higher electric conductivity than AC. The most probable pore size of CMK-3 was 4.5 nm, which is larger than that of AC(0.54 nm). The BET surface area of CMK-3 was 1114 m2·g-1, which was also larger than that of AC(871 m2·g-1). The mesoporous structure of CMK-3 was also observed. The Pd/CMK-3 catalyst exhibited more excellent initial electrocatalytic activity for formic acid oxidation than Pd/AC by cyclic voltammetry (CV). But the chronoamperometry (CA) demonstrated that the stability of the two catalysts were almost equal after 100 s polarization at 0.2 V (vs. SCE).
%K ordered mesoporous carbons
%K complexing reduction
%K Pd/CMK-3
%K electrocatalytic oxidation
%K formic acid<br>有序中孔炭
%K 络合还原法
%K Pd/CMK-3
%K 电催化氧化
%K 甲酸
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=2350B5576F89D072A6A8F9DAEBFBD636&yid=99E9153A83D4CB11&vid=27746BCEEE58E9DC&iid=F3090AE9B60B7ED1&sid=908B618FE694C562&eid=D816C28950CAE1B7&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=27