Hollow carbon hemisphere with controlled morphology as support material for platinum nanoparticle catalyst towards the methanol electro-oxidation
Hollow carbon hemisphere with controlled morphology as support material for platinum nanoparticle catalyst towards the methanol electro-oxidation
复制标题
具有受控形貌的空心碳半球作为甲醇电氧化铂纳米颗粒催化剂的载体材料
DOI：
10.1016/j.materresbull.2014.05.021
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发表时间：
2014-09
影响因子：
5.4
通讯作者：
Feng Wang
中科院分区：
文献类型：
--
作者：
Jing Ji;Haijing Liu;Xuegao Zhou;Feng Wang
Morphology controlled hollow carbon hemisphere (HCHS) has been prepared using polystyrene (PS) spheres as templates. The obtained HCHS can be tailored from hollow carbon sphere (HCS) to bowl-like hemispheres by adjusting the ratio of precursor to templates, and mainly in amorphous structure with a BET surface area of 507 m2/g. The HCHS was then applied for the support material of the platinum (Pt) nanoparticle catalyst (Pt/HCHS). The nanoparticles can be highly dispersed with a narrow particle size distribution and an average diameter of 3.9 nm. The electrochemical analysis indicated that the Pt/HCHS exhibits enhanced catalytic activity towards the methanol electro-oxidation in terms of the onset potential, current density and stability in alkaline solution compared with carbon black supported Pt catalyst (Pt/CB), suggesting that the HCHS with unique hollow structure has great potential as a support material for the electrocatalysts.
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影响因子：
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通讯作者：
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影响因子：
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通讯作者：
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影响因子：
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作者：
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影响因子：
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通讯作者：
Yanchun Zhao;Fengyang Wang;Jianniao Tian;Xiulin Yang;Lu Zhan