Imperial College London

Prof Milo Shaffer

Faculty of Natural SciencesDepartment 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

 

M221Royal College of ScienceSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Woodward:2018:10.1039/C7TA09893F,
author = {Woodward, RT and Markoulidis, F and De, Luca F and Anthony, D and Malko, D and McDonald, T and Shaffer, M and Bismarck, A},
doi = {10.1039/C7TA09893F},
journal = {Journal of Materials Chemistry A},
pages = {1840--1849},
title = {Carbon foams from emulsion-templated reduced graphene oxide polymer composites: electrodes for supercapacitor devices},
url = {http://dx.doi.org/10.1039/C7TA09893F},
volume = {6},
year = {2018}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Amphiphilic reduced graphene oxide (rGO) is an efficient emulsifier for water-in-divinylbenzene (DVB) high internal phase emulsions. The polymerisation of the continuous DVB phase of the emulsion template and removal of water results in macroporous poly(divinylbenzene) (polyDVB). Subsequent pyrolysis of the poly(DVB) macroporous polymers yields ‘all-carbon’ foams containing micropores alongside emulsion templated-macropores, resulting in hierarchical porosity. The synthesis of carbon foams, or ‘carboHIPEs’, from poly(DVB) produced by polymerisation of rGO stabilised HIPEs provides both exceptionally high surface areas (up to 1820 m2/g) and excellent electrical conductivities (up to 285 S/m), competing with the highest figures reported for carboHIPEs. The use of a 2D carbon emulsifier results in the elimination of post-carbonisation treatments to remove standard inorganic particulate emulsifiers, such as silica particles. It is demonstrated that rGO containing carboHIPEs are good candidates for supercapacitor electrodes where carboHIPEs derived from more conventional polymerised silica-stabilised HIPEs perform poorly. Supercapacitor devices featured a room-temperature ionic liquid electrolyte and electrodes derived from either rGO- or silica-containing poly(DVB)HIPEs and demonstrated a maximum specific capacitance of 26 F g-1, an energy density of 5.2 Wh kg-1 and a power density of 280 W kg-1.
AU - Woodward,RT
AU - Markoulidis,F
AU - De,Luca F
AU - Anthony,D
AU - Malko,D
AU - McDonald,T
AU - Shaffer,M
AU - Bismarck,A
DO - 10.1039/C7TA09893F
EP - 1849
PY - 2018///
SN - 2050-7496
SP - 1840
TI - Carbon foams from emulsion-templated reduced graphene oxide polymer composites: electrodes for supercapacitor devices
T2 - Journal of Materials Chemistry A
UR - http://dx.doi.org/10.1039/C7TA09893F
UR - http://hdl.handle.net/10044/1/56153
VL - 6
ER -