Imperial College London
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Dr Andrew Cairns

Faculty of Engineering, Department of Materials

Lecturer in Materials Chemistry
 
 
 
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Contact

 

+44 (0)20 7594 9528a.cairns Website

 
 
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Location

 

107Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Dziubek:2017:10.1021/acs.jpcc.7b06751,
author = {Dziubek, K and Citroni, M and Fanetti, S and Cairns, AB and Bini, R},
doi = {10.1021/acs.jpcc.7b06751},
journal = {The Journal of Physical Chemistry C: Energy Conversion and Storage, Optical and Electronic Devices, Interfaces, Nanomaterials, and Hard Matter},
pages = {19872--19879},
title = {Synthesis of high-quality crystalline carbon nitride oxide by selectively driving the high-temperature instability of urea with pressure},
url = {http://dx.doi.org/10.1021/acs.jpcc.7b06751},
volume = {121},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - One-step synthesis using only physical tools is an appealing “green” method for the realization of technological materials. High-pressure conditions are particularly suitable in the attainment of extended supramolecular networks and in combination with high-temperature are effective in selecting specific reaction pathways to increase product quality. Here we show how pressures below 3 GPa and temperatures on the order of 420 K are effective for the synthesis, from urea crystal phase IV, of 2D graphitic carbon nitride oxide with enhanced crystalline quality. Angle-dispersive X-ray diffraction and Fourier transform IR spectroscopy show that the reaction becomes less selective at higher pressure with the formation of melamine and ammonium carbamate as byproducts. An anomalous positive slope is shown by the P–T instability boundary, likely arising from unfavorable hydrogen bonding with respect to the topochemical path, making urea an interesting case study for gaining insight into the role of hydrogen bonding in solid-state reactivity.
AU  - Dziubek,K
AU  - Citroni,M
AU  - Fanetti,S
AU  - Cairns,AB
AU  - Bini,R
DO  - 10.1021/acs.jpcc.7b06751
EP  - 19879
PY  - 2017///
SN  - 1932-7447
SP  - 19872
TI  - Synthesis of high-quality crystalline carbon nitride oxide by selectively driving the high-temperature instability of urea with pressure
T2  - The Journal of Physical Chemistry C: Energy Conversion and Storage, Optical and Electronic Devices, Interfaces, Nanomaterials, and Hard Matter
UR  - http://dx.doi.org/10.1021/acs.jpcc.7b06751
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000411171800034&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/77188
VL  - 121
ER  -
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