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The synthesis, characterization, and performance of carbon nanotnbes and carbon nanofibres with controlled size and morphology as a catalyst support material for a polymer electrolyte membrane fuel cell
Alternative TitleNanotechnology
Yuan, FL; Ryu, HJ
2004-10-01
Source PublicationNANOTECHNOLOGY
ISSN0957-4484
Volume15Issue:10Pages:S596-S602
AbstractCarbon nanotubes (CNTs) and carbon nanofibres (CNFs) were synthesized by the thermal chemical vapour deposition (CVD) process using an Ni-MgO catalyst. The Ni-MgO catalyst was treated by a mechanochemical (MC) process to govern its size and morphology. The grinding time in the MC process and pyrolytic temperature in the CVD process are regarded as the main factors to tailor the size and morphology of the CNTs and CNFs synthesized. CNTs with a diameter 25 and 15 nm, twisted CNFs with a diameter 65 and 100 nm, and straight CNFs with a diameter 70 nm were synthesized. After purification, they were used as the electrode platinum support for fuel cell application. 20% Pt was loaded on the CNTs and CNFs. The fuel cell performance with twisted CNFs was found to be better than that with straight CNFs, and the performance of CNTs and CNFs with smaller diameter was better than that of bigger ones. The best performance of the fuel cell voltage of 645 mV at a current density of 500 mA cm(-2) was given by twisted CNFs with diameter 65 nm. The dispersal of the loaded Pt and the resistivity of the membrane electrode assembly were considered to affect their performance.; Carbon nanotubes (CNTs) and carbon nanofibres (CNFs) were synthesized by the thermal chemical vapour deposition (CVD) process using an Ni-MgO catalyst. The Ni-MgO catalyst was treated by a mechanochemical (MC) process to govern its size and morphology. The grinding time in the MC process and pyrolytic temperature in the CVD process are regarded as the main factors to tailor the size and morphology of the CNTs and CNFs synthesized. CNTs with a diameter 25 and 15 nm, twisted CNFs with a diameter 65 and 100 nm, and straight CNFs with a diameter 70 nm were synthesized. After purification, they were used as the electrode platinum support for fuel cell application. 20% Pt was loaded on the CNTs and CNFs. The fuel cell performance with twisted CNFs was found to be better than that with straight CNFs, and the performance of CNTs and CNFs with smaller diameter was better than that of bigger ones. The best performance of the fuel cell voltage of 645 mV at a current density of 500 mA cm(-2) was given by twisted CNFs with diameter 65 nm. The dispersal of the loaded Pt and the resistivity of the membrane electrode assembly were considered to affect their performance.
KeywordChemical-vapor-deposition Graphite Nanofibers Nickel Particles Nanotubes Behavior Growth Hydrogen Fibers Iron
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
URL查看原文
Indexed ByISTP ; SCI
Language英语
WOS KeywordCHEMICAL-VAPOR-DEPOSITION ; GRAPHITE NANOFIBERS ; NICKEL PARTICLES ; NANOTUBES ; BEHAVIOR ; GROWTH ; HYDROGEN ; FIBERS ; IRON
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000224812200018
Citation statistics
Cited Times:68[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5032
Collection研究所(批量导入)
Affiliation1.Korea Res Inst Chem Technol, Adv Mat Div, Taejon 305600, South Korea
2.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Yuan, FL,Ryu, HJ. The synthesis, characterization, and performance of carbon nanotnbes and carbon nanofibres with controlled size and morphology as a catalyst support material for a polymer electrolyte membrane fuel cell[J]. NANOTECHNOLOGY,2004,15(10):S596-S602.
APA Yuan, FL,&Ryu, HJ.(2004).The synthesis, characterization, and performance of carbon nanotnbes and carbon nanofibres with controlled size and morphology as a catalyst support material for a polymer electrolyte membrane fuel cell.NANOTECHNOLOGY,15(10),S596-S602.
MLA Yuan, FL,et al."The synthesis, characterization, and performance of carbon nanotnbes and carbon nanofibres with controlled size and morphology as a catalyst support material for a polymer electrolyte membrane fuel cell".NANOTECHNOLOGY 15.10(2004):S596-S602.
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