1. The agglomeration of Pt nanoparticles can be greatly improved by functionalizing the surface of MWCNTs.
2. The power density of Pt dispersed on HNO3 treated MWCNTs is 15.8, 12.6 and 8.6 mW/cm2 at 70oC, 50oC and 30oC with 0.4 mg/cm2 Pt loading ,respectively.
3. Microwave digestion method was used for effectively modifying CNTs and shorting the
process time
4. The aggregation of Pt nanoparticles can be significantly improved by functionalizing the surface of MWCNTs using the microwave digestion method.
5. The CVs results show that the microwave digestion modified Pt/MWCNTs electrode exhibits the larger electrochemical Pt surface area and higher current density of methanol oxidation than pristine and HNO3 treated Pt/MWCNTs electrodes.
6. Thiolation of MWCNTs by 2-mercaptoethanol could have smaller Pt particle size due to the lower electrostatic force of sulfur atom.
7. The Pt/sulfonated-MWCNTs has the maximum methanol oxidation current density about 152.1 mA/cm2 and mass efficiency about 304mA/g, which is much higher than the Pt/HNO3 treated-MWCNTs.
8. The power density of Pt dispersed on thiolated MWCNTs is 20.6 mW/cm2 at 70oC, with 0.5 mg/cm2 Pt loading.
Tab.6-1 Summaries of the experimental results of our research and other research groups.
Group Material Pt loading Current
density
Group Material Pt
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Vita
姓名：陳建仲 性別：男
生日：66 年 3 月 23 日，台北人 電子郵件信箱：[email protected]
永久地址：台北縣中和市中山路二段463 號 4 樓 學歷：
博士班：國立交通大學材料科學與工程學系暨研究所 2002. 9 ~ 2006. 8
研究所: 國立台灣科技大學化學工程研究所 2000. 9 ~ 2002. 6
大學：中原大學化學工程系 1996. 9 ~ 2000. 6
碩士論文題目：奈米碳管於低溫下合成的結構及場發射特性探討 著作：
1. Chien-Chung Chen, Chia Fu Chen, Cheng-Hang Hsu and I-Hsuan Li
“Growth and characteristics of carbon nanotubes on carbon cloth as electrodes”
Diamond and Related Materials, Volume 14, Issues 3-7, March-July 2005, Pages 770-773
2. Chien-Chung Chen, Chia-Fu Chen, I-Hsuan Lee and Chien-Liang Lin
“Fabrication of high surface area graphitic nanoflakes on carbon nanotubes templates”
Diamond and Related Materials, Volume 14, Issues 11-12, November-December 2005,
Pages 1897-1900
3. Chien-Chung Chen, Chia-Fu Chen, Chieng-Ming Chen, Fang-Tzu Chuang “Modification of multi-walled carbon nanotubes by microwave digestion method as electrocatalyst
supports for direct methanol fuel cell applications”Electrochemistry Communications, In Press, Available online 25 July 2006
4. Chien-Chung Chen, Yi-Hui Chen and Chia-Fu Chen
“The parametric study of carbon nanotips grown by MWPECVD with controllable sharpness using various metallic catalysts” Microelectronic Engineering, In Press, Available online 5 July 2006
5. Cheng Hang Hsu, Chia-Fu Chen, Chien-Chung Chen and Shih-Yu Chan
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