Fluidized-bed production of 0.3 mm-long single-wall carbon nanotubes at 28% carbon yield with 0.1 mass% catalyst impurities using ethylene and carbon dioxide

被引：9

作者：

Li, Mochen ^{[1
]}

Hachiya, Soichiro ^{[2
]}

Chen, Zhongming ^{[2
]}

Osawa, Toshio ^{[2
]}

Sugime, Hisashi ^{[1
]}

Noda, Suguru ^{[1
,2
]}

机构：

[1] Waseda Univ, Waseda Res Inst Sci & Engn, Shinjuku Ku, 3-4-1 Okubo, Tokyo 1698555, Japan

[2] Waseda Univ, Dept Appl Chem, Shinjuku Ku, 3-4-1 Okubo, Tokyo 1698555, Japan

来源：

CARBON | 2021年 / 182卷 / 182期

基金：

日本学术振兴会;

关键词：

SURFACE-AREA; LARGE-SCALE; ARRAYS; GROWTH; FOREST; PURE;

D O I：

10.1016/j.carbon.2021.05.035

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

To produce carbon nanotubes (CNTs) practically, a high carbon source concentration and high carbon yield are essential. By feeding moderately active ethylene at 10-20 vol% with mildly oxidative carbon dioxide at 1 vol%, submillimeter-long single-wall CNT (SWCNT) arrays were synthesized via fluidized-bed chemical vapor deposition using an Fe/AlOx catalyst sputtered on ceramic beads. SWCNTs with an average diameter of 2.9 nm, long length (0.3 mm), low catalyst impurity (0.1 mass%), and high specific surface area (1178 m(2)/g) were obtained at a high carbon yield of 28%. This study thus introduces a route for more efficient and cleaner production of long and pure SWCNTs. (C) 2021 The Authors. Published by Elsevier Ltd.

引用

页码：23 / 31

页数：9

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