Imperial College London
Alternate

Prof Milo Shaffer

Faculty of Natural Sciences, Department of Chemistry

Professor of Materials Chemistry
 
 
 
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Contact

 

+44 (0)20 7594 5825m.shaffer Website

 
 
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Assistant

 

Mr John Murrell +44 (0)20 7594 2845

 
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Location

 

401BMolecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Moore:2021:10.1021/acsami.1c00971,
author = {Moore, J and Paineau, E and Launois, P and Shaffer, M},
doi = {10.1021/acsami.1c00971},
journal = {ACS Applied Materials and Interfaces},
pages = {17940--17947},
title = {Continuous binder-free fibers of pure imogolite nanotubes},
url = {http://dx.doi.org/10.1021/acsami.1c00971},
volume = {13},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Imogolite nanotubes display a range of useful properties and provide an ideal material system to study the assembly of nanomaterials into macroscopic fibers. A method of wet spinning pure, binder-free imogolite fibers has been developed using double walled germanium imogolite nanotubes. Nanotube aspect ratio can be controlled during the initial synthesis and is critical to the spinning process. Fibers made from short nanotubes (<100 nm) have very low gel strengths, whilst dopes with longer nanotubes (500-1000 nm) are readily spinnable. The tensile behaviour of the resulting imogolite nanotube fibers is strongly influenced by relative humidity (RH), with a modulus of 30 GPa at 10% RH compared to 2.8 GPa at 85% RH, as well as a change in failure mode. This result highlights the importance of inter nanotube interactions in such assemblies and provides a useful strategy for further exploration. Interestingly, in the absence of a matrix phase, a degree of misorientation appears to improve load transfer between the individual INTs within the porous fiber, likely due to an increase of the number of inter-particle contacts. Imogolite nanotubes are an appealing analogue to other nanotube fiber systems, and it is hoped that learnings from this system can also be used to improve carbon nanotube fibers.
AU  - Moore,J
AU  - Paineau,E
AU  - Launois,P
AU  - Shaffer,M
DO  - 10.1021/acsami.1c00971
EP  - 17947
PY  - 2021///
SN  - 1944-8244
SP  - 17940
TI  - Continuous binder-free fibers of pure imogolite nanotubes
T2  - ACS Applied Materials and Interfaces
UR  - http://dx.doi.org/10.1021/acsami.1c00971
UR  - http://hdl.handle.net/10044/1/89163
VL  - 13
ER  -
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