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Title: Cadmium-catalyzed surface growth of single-walled carbon nanotubes with high efficiency

Abstract

Graphical abstract: The Cd nanocatalysts, prepared using a diblock copolymer templating method, were uniformly spaced over a large deposition area with an average diameter of 1.9 nm and narrow size distribution. By using the normal-heating method, high density SWNTs can be generated. Research highlights: {yields} We demonstrate that cadmium (Cd) can catalyze the growth of SWNTs with high efficiency. {yields} The PVP capped-Cd nanocatalysts were uniformly spaced over a large deposition area with an average diameter of 1.9 nm. {yields} By using the normal-heating and fast-heating method, random and horizontally aligned arrays of SWNTs can be generated. {yields} The high percentage of SWNTs with Ag deposition from Cd indicates that the SWNTs have better conductivity and structural uniformity. -- Abstract: We demonstrate that cadmium (Cd) can catalyze the growth of single-walled carbon nanotubes (SWNTs) with high efficiency. The Cd nanocatalysts, prepared using a diblock copolymer templating method, were uniformly spaced over a large deposition area with an average diameter of 1.9 nm and narrow size distribution. By using the normal-heating and fast-heating method, random and horizontally aligned arrays of SWNTs can be generated. The density of the SWNTs can be altered by the chemical vapor deposition conditions. The morphology andmore » microstructure of the SWNTs characterized by scanning electron microscopy, Raman spectroscopy, atomic force microscopy, and high-resolution transmission electron microscopy revealed that the grown nanotubes do not have carbonaceous particles and have good crystallinity. In addition, after careful check with superlong nanotubes 735 out of 790 nanotubes were found to be deposited with Ag (93%) and only 7% SWNTs without Ag deposition. While for superlong SWNT arrays from Fe, 32% long SWNTs without Ag deposition was found, the high percentage of SWNTs with Ag deposition from Cd indicates that the SWNTs have better conductivity and better structural uniformity with less defects.« less

Authors:
 [1];  [2];  [3]
  1. Key Laboratory of Radioactive Geology and Exploration Technology Fundamental Science for National Defense, East China Institute of Technology, Fuzhou 344000 (China)
  2. College of Life Science, Jiangxi Normal University, Nanchang 330027 (China)
  3. Nanomaterials and Chemistry Key Laboratory, Wenzhou University, Xueyuan Road, Wenzhou 325027 (China)
Publication Date:
OSTI Identifier:
22212124
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 46; Journal Issue: 6; Other Information: Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ATOMIC FORCE MICROSCOPY; CADMIUM; CARBON NANOTUBES; CHEMICAL VAPOR DEPOSITION; COPOLYMERS; DENSITY; DEPOSITS; EFFICIENCY; MICROSTRUCTURE; RAMAN SPECTROSCOPY; SCANNING ELECTRON MICROSCOPY; SURFACES; TRANSMISSION ELECTRON MICROSCOPY

Citation Formats

Qian, Yong, Lu, Shunbao, and Gao, Fenglei. Cadmium-catalyzed surface growth of single-walled carbon nanotubes with high efficiency. United States: N. p., 2011. Web. doi:10.1016/J.MATERRESBULL.2011.02.032.
Qian, Yong, Lu, Shunbao, & Gao, Fenglei. Cadmium-catalyzed surface growth of single-walled carbon nanotubes with high efficiency. United States. doi:10.1016/J.MATERRESBULL.2011.02.032.
Qian, Yong, Lu, Shunbao, and Gao, Fenglei. Wed . "Cadmium-catalyzed surface growth of single-walled carbon nanotubes with high efficiency". United States. doi:10.1016/J.MATERRESBULL.2011.02.032.
@article{osti_22212124,
title = {Cadmium-catalyzed surface growth of single-walled carbon nanotubes with high efficiency},
author = {Qian, Yong and Lu, Shunbao and Gao, Fenglei},
abstractNote = {Graphical abstract: The Cd nanocatalysts, prepared using a diblock copolymer templating method, were uniformly spaced over a large deposition area with an average diameter of 1.9 nm and narrow size distribution. By using the normal-heating method, high density SWNTs can be generated. Research highlights: {yields} We demonstrate that cadmium (Cd) can catalyze the growth of SWNTs with high efficiency. {yields} The PVP capped-Cd nanocatalysts were uniformly spaced over a large deposition area with an average diameter of 1.9 nm. {yields} By using the normal-heating and fast-heating method, random and horizontally aligned arrays of SWNTs can be generated. {yields} The high percentage of SWNTs with Ag deposition from Cd indicates that the SWNTs have better conductivity and structural uniformity. -- Abstract: We demonstrate that cadmium (Cd) can catalyze the growth of single-walled carbon nanotubes (SWNTs) with high efficiency. The Cd nanocatalysts, prepared using a diblock copolymer templating method, were uniformly spaced over a large deposition area with an average diameter of 1.9 nm and narrow size distribution. By using the normal-heating and fast-heating method, random and horizontally aligned arrays of SWNTs can be generated. The density of the SWNTs can be altered by the chemical vapor deposition conditions. The morphology and microstructure of the SWNTs characterized by scanning electron microscopy, Raman spectroscopy, atomic force microscopy, and high-resolution transmission electron microscopy revealed that the grown nanotubes do not have carbonaceous particles and have good crystallinity. In addition, after careful check with superlong nanotubes 735 out of 790 nanotubes were found to be deposited with Ag (93%) and only 7% SWNTs without Ag deposition. While for superlong SWNT arrays from Fe, 32% long SWNTs without Ag deposition was found, the high percentage of SWNTs with Ag deposition from Cd indicates that the SWNTs have better conductivity and better structural uniformity with less defects.},
doi = {10.1016/J.MATERRESBULL.2011.02.032},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 6,
volume = 46,
place = {United States},
year = {2011},
month = {6}
}