CNTs 합성을 통해 향상된 비표면적을 갖는 Ti 다공체의 제조

Title
CNTs 합성을 통해 향상된 비표면적을 갖는 Ti 다공체의 제조
Other Titles
Fabrication of Ti Porous body with Improved Specific Surface Area by Synthesis of CNTs
Authors
변종민
Keywords
Titanium porous body; freeze drying method; carbon nanotube (CNT); catalytic chemical vapor deposition (CCVD); specific surface area
Issue Date
2016-06
Publisher
한국분말야금학회
Citation
한국분말야금학회지, v. 23, NO 3, Page. 235-239
Abstract
This study is performed to fabricate a Ti porous body by freeze drying process using titanium hydride (TiH2) powder and camphene. Then, the Ti porous body is employed to synthesize carbon nanotubes (CNTs) using thermal catalytic chemical vapor deposition (CCVD) with Fe catalyst and methane (CH4) gas to increase the specific surface area. The synthesized Ti porous body has 100 μm-sized macropores and 10-30 μm-sized micropores. The synthesized CNTs have random directions and are entangled with adjacent CNTs. The CNTs have a bamboo-like structure, and their average diameter is about 50 nm. The Fe nano-particles observed at the tip of the CNTs indicate that the tip growth model is applicable. The specific surface area of the CNT-coated Ti porous body is about 20 times larger than that of the raw Ti porous body. These CNT-coated Ti porous bodies are expected to be used as filters or catalyst supports.
URI
http://ejournal.kpmi.or.kr/journal/article.php?code=43404http://repository.hanyang.ac.kr/handle/20.500.11754/71977
ISSN
2287-8173; 1225-7591
DOI
http://dx.doi.org/10.4150/KPMI.2016.23.3.235
Appears in Collections:
RESEARCH INSTITUTE[S](부설연구소) > RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE(산업과학연구소) > Articles
RESEARCH INSTITUTE[S](부설연구소) > RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE(산업과학연구소) > Articles
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