The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 01, 2011
Filed:
May. 27, 2009
Sang-hyo Ryu, Yuseong-gu Daejeon, KR;
Dong Hwan Kim, Daejeon, KR;
Wan Sung Lee, Daejeon, KR;
Namsun Choi, Daejeon, KR;
Hyun-kyung Sung, Daejeon, KR;
Youngchan Jang, Daejeon, KR;
Sang-Hyo Ryu, Yuseong-gu Daejeon, KR;
Dong Hwan Kim, Daejeon, KR;
Wan Sung Lee, Daejeon, KR;
Namsun Choi, Daejeon, KR;
Hyun-Kyung Sung, Daejeon, KR;
Youngchan Jang, Daejeon, KR;
Korea Kumho Petrochemical Co., Ltd., Seoul, KR;
Abstract
The present invention relates to a catalyst composition for the synthesis of thin multi-walled carbon nanotube (MWCNT) and a method for manufacturing a catalyst composition. More particularly, this invention relates to a multi-component metal catalyst composition comprising i) main catalyst of Fe and Al, ii) inactive support of Mg and iii) optional co-catalyst at least one selected from Co, Ni, Cr, Mn, Mo, W, V, Sn, or Cu. Further, the present invention affords thin multi-walled carbon nanotube having 5˜20 nm of diameter and 100˜10,000 of aspect ratio in a high yield.