Design of an Assembly of Poly(benzimidazole), Carbon Nanotubes, and Pt Nanoparticles for a Fuel-Cell Electrocatalyst with an Ideal Interfacial Nanostructure

被引：164

作者：

Okamoto, Minoru ^{[1
]}

Fujigaya, Tsuyohiko ^{[1
]}

Nakashima, Naotoshi ^{[1
]}

机构：

[1] Kyushu Univ, Grad Sch Engn, Dept Appl Chem, Fukuoka 8190395, Japan

来源：

SMALL | 2009年 / 5卷 / 06期

关键词：

carbon nanotubes; electrodes; fuel cells; nanocomposites; polyelectrolytes; POLYMER ELECTROLYTE; SUPPORTED PLATINUM; METHANOL OXIDATION; IONOMER MEMBRANES; OXYGEN REDUCTION; ANODE CATALYSTS; POLYBENZIMIDAZOLE; PERFORMANCE; DURABILITY; DEPOSITION;

D O I：

10.1002/smll.200801742

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A newly designed and fabricated novel nanocomposite composed of multiwalled carbon nanotubes (MWNTs), poly (benzimidazole) (PBI),and Pt nanoparticles. This composite is fabricated by the preparation of PBI-wrapped MWNTs (MWNT/PBI), followed by Pt loading onto the MWNT/PBI. As a result of the PBI wrapping, the loading efficiency of the Pt nanoparticles onto the MWNTs is dramatically improved up to 58.8% compared to that of the pristine MWNTs (41.0%). The process also allows homogeneous Pt immobilization onto the surface of MWNTs without ally strong oxidation process for the MWNTs that is typically used for metal supporting on carbon nanotubes. Far-IR spectroscopy of the composite shows a peak from the Pt-N bonding, indicating that these improvements are derived from the coordination of the Pt ion with the PBI molecules. Cyclic voltammogram measurements reveal that the Pt nanoparticles deposited on the MWNT/PBI shows higher utilization efficiency (74%) for electrocatalysts compared to that on the pristine MWNT (39%).

引用

页码：735 / 740

页数：6

共 46 条

[21] PBI-Based Polymer Membranes for High Temperature Fuel Cells - Preparation, Characterization and Fuel Cell Demonstration [J].

Li, Q. ;

He, R. ;

Jensen, J. O. ;

Bjerrum, N. J. .

FUEL CELLS, 2004, 4 (03) :147-159

[22] The CO poisoning effect in PEMFCs operational at temperatures up to 200°C [J].

Li, QF ;

He, RH ;

Gao, JA ;

Jensen, JO ;

Bjerrum, NJ .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2003, 150 (12) :A1599-A1605

[23] Pt-Ru supported on double-walled carbon nanotubes as high-performance anode catalysts for direct methanol fuel cells [J].

Li, Wenzhen ;

Wang, Xin ;

Chen, Zhongwei ;

Waje, Mahesh ;

Yan, Yushan .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (31) :15353-15358

[24] Carbon nanotubes as support for cathode catalyst of a direct methanol fuel cell [J].

Li, WZ ;

Liang, CH ;

Qiu, JS ;

Zhou, WJ ;

Han, HM ;

Wei, ZB ;

Sun, GQ ;

Xin, Q .

CARBON, 2002, 40 (05) :791-794

[25] Preparation and characterization of multiwalled carbon nanotube-supported platinum for cathode catalysts of direct methanol fuel cells [J].

Li, WZ ;

Liang, CH ;

Zhou, WJ ;

Qiu, JS ;

Zhou, ZH ;

Sun, GQ ;

Xin, Q .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (26) :6292-6299

[26] Preparation and characterization of multi-walled carbon nanotubes supported PtRu catalysts for proton exchange membrane fuel cells [J].

Liang, YM ;

Zhang, HM ;

Yi, BL ;

Zhang, ZH ;

Tan, ZC .

CARBON, 2005, 43 (15) :3144-3152

[27] Controllable Pt nanoparticle deposition on carbon nanotubes as an anode catalyst for direct methanol fuel cells [J].

Mu, YY ;

Liang, HP ;

Hu, JS ;

Jiang, L ;

Wan, LJ .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (47) :22212-22216

[28] Electrophoretic deposition for nanostructural design of catalyst layers on Nafion membrane [J].

Munakata, Hirokazu ;

Ishida, Tomohiko ;

Kanamura, Kiyoshi .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2007, 154 (12) :B1368-B1372

[29]

Murakami H, 2006, J NANOSCI NANOTECHNO, V6, P16, DOI 10.1166/jnn.2006.072

[30] Noncovalent porphyrin-functionalized single-walled carbon nanotubes in solution and the formation of porphyrin-nanotube nanocomposites [J].

Murakami, H ;

Nomura, T ;

Nakashima, N .

CHEMICAL PHYSICS LETTERS, 2003, 378 (5-6) :481-485

← 1 2 3 4 5 →