Imperial College London
Alternate

ProfessorCeciliaMattevi

Faculty of Engineering, Department of Materials

Professor of Materials Science
 
 
 
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Contact

 

+44 (0)20 7594 0833c.mattevi

 
 
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Location

 

2.11Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Chong:2019:10.1002/adem.201900642,
author = {Chong, JY and Wang, B and Sherrell, PC and Pesci, FM and Mattevi, C and Li, K},
doi = {10.1002/adem.201900642},
journal = {Advanced Engineering Materials},
pages = {1--6},
title = {Fabrication of graphenecovered microtubes for process intensification},
url = {http://dx.doi.org/10.1002/adem.201900642},
volume = {21},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Graphene is known for its high surfaceareatomass ratio. However, for graphene to be used in engineering processes such as catalytic reactors or heat exchangers, high surfaceareatovolume ratio is essential. Currently, graphene is only prepared in sheet form, which limits its surfaceareatovolume ratio to around 200 m2 m−3. In this study, we propose and demonstrate a technique based on chemical vapour deposition (CVD) to realise graphene on a copperbased microtubular substrate to not only substantially increase its surfaceareatovolume ratio to a value over 2000 m2 m−3, but also to eliminate maldistribution of flows commonly unavoidable in flatsheet configurations. Our approach uses a duallayer microtubular substrate fabricated by a phaseinversion facilitated coextrusion technique. In the substrate, a thin copper outer layer is employed to enable the CVD growth of graphene, and an inner CuFe layer is adopted to provide a strong mechanical support. Our study shows that this approach is feasible to produce graphene with a very high surfaceareatovolume ratio for possible practical applications in catalytic reactors or heat exchangers, though problems such as the interdiffusion between the two metal layers and defects in graphene need to be further addressed. To the best of our knowledge, this study is the first attempt to prepare graphene with high surfaceareatovolume ratio by a CVD route.
AU  - Chong,JY
AU  - Wang,B
AU  - Sherrell,PC
AU  - Pesci,FM
AU  - Mattevi,C
AU  - Li,K
DO  - 10.1002/adem.201900642
EP  - 6
PY  - 2019///
SN  - 1438-1656
SP  - 1
TI  - Fabrication of graphenecovered microtubes for process intensification
T2  - Advanced Engineering Materials
UR  - http://dx.doi.org/10.1002/adem.201900642
UR  - https://onlinelibrary.wiley.com/doi/abs/10.1002/adem.201900642
UR  - http://hdl.handle.net/10044/1/72780
VL  - 21
ER  -
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