2011
DOI: 10.1002/adfm.201001851
|View full text |Cite
|
Sign up to set email alerts
|

Carbon‐Nanotube‐Templated Microfabrication of Porous Silicon‐Carbon Materials with Application to Chemical Separations

Abstract: Carbon-nanotube-templated microfabrication (CNT-M) of porous materials is demonstrated. Partial chemical infi ltration of 3D carbon-nanotube structures with silicon results in a mechanically robust material, structured from the 10 nm scale to the 100 μ m scale. The nanoscale dimensions are determined by the diameter and spacing of the resulting silicon/carbon nanotubes, while the microscale dimensions are controlled by the lithographic patterning of the CNT growth catalyst. We demonstrate the utility of this h… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1

Citation Types

3
48
0

Year Published

2012
2012
2019
2019

Publication Types

Select...
8

Relationship

4
4

Authors

Journals

citations
Cited by 66 publications
(51 citation statements)
references
References 38 publications
3
48
0
Order By: Relevance
“…These include monolithic silica [1], glancing angle deposition (GLAD) [2][3][4], polymer monoliths [5][6][7][8], and electrospun polymers [9,10]. Our group has also been active in this area, reporting TLC plates with high efficiencies and short run times prepared from microfabricated, patterned, and infiltrated carbon nanotube (CNT) forests [11][12][13][14]. In general, these plates are prepared as follows.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…These include monolithic silica [1], glancing angle deposition (GLAD) [2][3][4], polymer monoliths [5][6][7][8], and electrospun polymers [9,10]. Our group has also been active in this area, reporting TLC plates with high efficiencies and short run times prepared from microfabricated, patterned, and infiltrated carbon nanotube (CNT) forests [11][12][13][14]. In general, these plates are prepared as follows.…”
Section: Introductionmentioning
confidence: 99%
“…Our first attempt to microfabricate a TLC plate employed the conformal deposition of silicon onto CNTs via low-pressure chemical vapor deposition (LPCVD) of silane (SiH 4 ), where the oxidation/removal of the CNTs beneath the silicon led to their removal and the oxidation of the silicon to silica [14]. Unfortunately, the volume expansion of Si to SiO 2 that occurred in this process distorted the features of the device and led to irreproducible results.…”
Section: Introductionmentioning
confidence: 99%
“…Carbon nanotube (CNT)-templated microfabrication is a new approach to constructing high aspect ratio structures that capitalizes on the very large length to diameter ratios present for carbon nanotubes. 24,25 For modest growth lengths of 1 mm and a nominal 100 nm spacing between carbon nanotubes, aspect ratios of 10À10 000 are achievable for vertically aligned growth. When combined with lithographically defined growth, almost any aspect ratio in this range can be realized.…”
mentioning
confidence: 99%
“…[9] In this preparation, the CNT scaffolds were removed from the plates by air oxidation at 1000°C for 24 h.…”
Section: Experimental Fabrication Of Tlc Platesmentioning
confidence: 99%
“…[31] Our second use of surface hydroxylation was very similar to the first -the same hydroxylation conditions followed by an amino bonded phase. [11] These same hydroxylation conditions were again followed for plates made via LPCVD silicon [9] that were part of a study on the thickness of the iron catalyst used in CNT growth. [32] For this study, no bonded phase was employed, and some surface characterization by DRIFT was reported.…”
Section: Introductionmentioning
confidence: 99%