Facile growth of high-yield and -crystallinity vertically aligned carbon nanotubes via a sublimated ferric chloride catalyst precursor

IF 2.5 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Nano Futures Pub Date : 2023-03-14 DOI:10.1088/2399-1984/acc43c
H. Goktas, N. Lachman, E. Kalfon-Cohen, Xiaoxue Wang, S. Torosian, K. Gleason, B. Wardle
{"title":"Facile growth of high-yield and -crystallinity vertically aligned carbon nanotubes via a sublimated ferric chloride catalyst precursor","authors":"H. Goktas, N. Lachman, E. Kalfon-Cohen, Xiaoxue Wang, S. Torosian, K. Gleason, B. Wardle","doi":"10.1088/2399-1984/acc43c","DOIUrl":null,"url":null,"abstract":"A facile and effective catalyst deposition process for carbon nanotube (CNT) array growth via chemical vapor deposition using a resistively heated thermal evaporation technique to sublimate FeCl3 onto the substrate is demonstrated. The catalytic activity of the sublimated FeCl3 catalyst precursor is shown to be comparable to the well-studied e-beam evaporated Fe catalyst, and the resulting vertically aligned CNTs (VA-CNTs) have a similar diameter, walls, and defects, as well as improved bulk electrical conductivity. In contrast to standard e-beam-deposited Fe, which yields base-growth CNTs, scanning and transmission electron microscopy and X-ray photoelectron spectroscopy characterizations reveal a tip-growth mechanism for the FeCl3-derived VA-CNT arrays/forests. The FeCl3-derived forests have a lower (∼1/3 less) longitudinal indentation modulus, but higher longitudinal electrical conductivity (greater than twice) than that of the e-beam Fe-grown CNT arrays. The sublimation process to grow high-quality VA-CNTs is a highly facile and scalable process (extensive substrate shape and size, and moderate vacuum and temperatures) that provides a new route to synthesizing aligned CNT forests for numerous applications.","PeriodicalId":54222,"journal":{"name":"Nano Futures","volume":null,"pages":null},"PeriodicalIF":2.5000,"publicationDate":"2023-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nano Futures","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1088/2399-1984/acc43c","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

Abstract

A facile and effective catalyst deposition process for carbon nanotube (CNT) array growth via chemical vapor deposition using a resistively heated thermal evaporation technique to sublimate FeCl3 onto the substrate is demonstrated. The catalytic activity of the sublimated FeCl3 catalyst precursor is shown to be comparable to the well-studied e-beam evaporated Fe catalyst, and the resulting vertically aligned CNTs (VA-CNTs) have a similar diameter, walls, and defects, as well as improved bulk electrical conductivity. In contrast to standard e-beam-deposited Fe, which yields base-growth CNTs, scanning and transmission electron microscopy and X-ray photoelectron spectroscopy characterizations reveal a tip-growth mechanism for the FeCl3-derived VA-CNT arrays/forests. The FeCl3-derived forests have a lower (∼1/3 less) longitudinal indentation modulus, but higher longitudinal electrical conductivity (greater than twice) than that of the e-beam Fe-grown CNT arrays. The sublimation process to grow high-quality VA-CNTs is a highly facile and scalable process (extensive substrate shape and size, and moderate vacuum and temperatures) that provides a new route to synthesizing aligned CNT forests for numerous applications.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
利用升华氯化铁催化剂前驱体制备高产量、高结晶度垂直排列的碳纳米管
介绍了一种简单有效的碳纳米管(CNT)阵列生长催化剂沉积工艺,该工艺通过化学气相沉积,利用电阻加热热蒸发技术将FeCl3升华到衬底上。经升华的FeCl3催化剂前驱体的催化活性与经过充分研究的电子束蒸发的Fe催化剂相当,并且得到的垂直排列的碳纳米管(VA-CNTs)具有相似的直径、壁和缺陷,并且提高了整体导电性。与标准电子束沉积的Fe不同,扫描电镜和透射电镜以及x射线光电子能谱表征揭示了fecl3衍生的VA-CNT阵列/森林的尖端生长机制。fecl3衍生的碳纳米管阵列具有较低(约1/3)的纵向压痕模量,但比电子束fe生长的碳纳米管阵列具有更高的纵向电导率(大于两倍)。生长高质量VA-CNTs的升华工艺是一种高度简便和可扩展的工艺(衬底形状和尺寸广泛,真空和温度适中),为合成具有多种应用的排列碳纳米管森林提供了一条新途径。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Nano Futures
Nano Futures Chemistry-General Chemistry
CiteScore
4.30
自引率
0.00%
发文量
35
期刊介绍: Nano Futures mission is to reflect the diverse and multidisciplinary field of nanoscience and nanotechnology that now brings together researchers from across physics, chemistry, biomedicine, materials science, engineering and industry.
期刊最新文献
Nanobiohybrids and bacterial carriers: a novel pathway to targeted cancer therapy The use of orthogonal analytical approaches to profile lipid nanoparticle physicochemical attributes Navigating the frontiers of graphene quality control to enable product optimisation and market confidence Overlapping top gate electrodes based on low temperature atomic layer deposition for nanoscale ambipolar lateral junctions Turning CO2 into Sustainable Graphene: A Comprehensive Review of Recent Synthesis Techniques and Developments
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1