Self-Assembly of Colloidal γ-Fe2O3 and FePt Nanoparticles on Carbon Nanotubes by Dip-Coating Process

被引:4
作者
Hu, Quanli [1 ]
Lee, Ok Hyoung [1 ]
Lim, Yun-Soo [1 ,2 ]
Kim, Yong-Sang [1 ]
Shin, Ju Kyung [3 ]
Baeck, Sung-Hyeon [3 ]
Lee, Hyun Ho [4 ]
Kim, Hyun-Mi [5 ]
Kim, Ki-Bum [5 ]
Yoon, Tae-Sik [1 ,2 ]
机构
[1] Myongji Univ, Dept Nano Sci & Engn, Yongin 449728, Gyeonggi Do, South Korea
[2] Myongji Univ, Dept Mat Sci & Engn, Yongin 449728, Gyeonggi Do, South Korea
[3] Inha Univ, Dept Chem Engn, Inchon 402751, South Korea
[4] Myongji Univ, Dept Chem Engn, Yongin 449728, Gyeonggi Do, South Korea
[5] Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 151742, South Korea
关键词
Iron Oxide; Iron Platinum; Nanoparticle; Carbon Nanotubes; Adsorption; Dip-Coating; SINGLE; CATALYST; METAL;
D O I
10.1166/jnn.2012.4684
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The chemically synthesized colloidal gamma-Fe2O3 and FePt nanoparticles (NPs), with the diameter of similar to 10 nm and similar to 4 nm, respectively, adsorbed and assembled on the surface of carbon nanotubes (CNTs) by dip-coating process, through van der Waals interaction between NP and CNT. Repeating the steps of dip-coating and removing the surfactants from NPs significantly increased the amount of NPs as forming multilayers on the CNT. In addition, the electrochemical activities of FePt/CNTs for methanol oxidation were investigated for the potential application as catalysts of direct methanol fuel cells.
引用
收藏
页码:1709 / 1712
页数:4
相关论文
共 22 条
[1]  
[Anonymous], 1992, INTERMOLECULAR SURFA
[2]   Composition effects of FePt alloy nanoparticles on the electro-oxidation of formic acid [J].
Chen, Wei ;
Kim, Jaemin ;
Sun, Shouheng ;
Chen, Shaowei .
LANGMUIR, 2007, 23 (22) :11303-11310
[3]   Electrochemical templating of metal nanoparticles and nanowires on single-walled carbon nanotube networks [J].
Day, TM ;
Unwin, PR ;
Wilson, NR ;
Macpherson, JV .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (30) :10639-10647
[4]   Decorating carbon nanotubes with metal or semiconductor nanoparticles [J].
Georgakilas, Vasilios ;
Gournis, Dimitrios ;
Tzitzios, Vasilios ;
Pasquato, Lucia ;
Guldi, Dirk M. ;
Prato, Maurizio .
JOURNAL OF MATERIALS CHEMISTRY, 2007, 17 (26) :2679-2694
[5]   Highly dispersed Pt nanoparticles immobilised on 3-amino-silane-modified MWNT materials for methanol oxidation [J].
Guo, Dao-Jun ;
Cui, Shu-Kun .
JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2008, 12 (11) :1393-1397
[6]   A direct route toward assembly of nanoparticle-carbon nanotube composite materials [J].
Han, L ;
Wu, W ;
Kirk, FL ;
Luo, J ;
Maye, MM ;
Kariuki, NN ;
Lin, YH ;
Wang, CM ;
Zhong, CJ .
LANGMUIR, 2004, 20 (14) :6019-6025
[7]   Electrochemical biosensing platforms using platinum nanoparticles and carbon nanotubes [J].
Hrapovic, S ;
Liu, YL ;
Male, KB ;
Luong, JHT .
ANALYTICAL CHEMISTRY, 2004, 76 (04) :1083-1088
[8]   Synthesis of highly crystalline and monodisperse maghemite nanocrystallites without a size-selection process [J].
Hyeon, T ;
Lee, SS ;
Park, J ;
Chung, Y ;
Bin Na, H .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (51) :12798-12801
[9]   Carbon nanotubes loaded with magnetic particles [J].
Korneva, G ;
Ye, HH ;
Gogotsi, Y ;
Halverson, D ;
Friedman, G ;
Bradley, JC ;
Kornev, KG .
NANO LETTERS, 2005, 5 (05) :879-884
[10]  
Lee SI, 2004, NANOTECHNOLOGY, V15, P416, DOI [10.1088/0957-4484/15/5/002, 10.1088/0957/15/5/002]