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{Tominaka:2015:10.1039/c4sc03295k,
author = {Tominaka, S and Hamoudi, H and Suga, T and Bennett, TD and Cairns, AB and Cheetham, AK},
doi = {10.1039/c4sc03295k},
journal = {Chemical Science},
pages = {1465--1473},
title = {Topochemical conversion of a dense metal-organic framework from a crystalline insulator to an amorphous semiconductor},
url = {http://dx.doi.org/10.1039/c4sc03295k},
volume = {6},
year = {2015}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The topochemical conversion of a dense, insulating metal–organic framework (MOF) into a semiconducting amorphous MOF is described. Treatment of single crystals of copper(I) chloride trithiocyanurate, CuICl(ttcH3) (ttcH3 = trithiocyanuric acid), 1, in aqueous ammonia solution yields monoliths of amorphous CuI1.8(ttc)0.6(ttcH3)0.4, 3. The treatment changes the transparent orange crystals of 1 into shiny black monoliths of 3 with retention of morphology, and moreover increases the electrical conductivity from insulating to semiconducting (conductivity of 3 ranges from 4.2 × 10−11 S cm−1 at 20 °C to 7.6 × 10−9 S cm−1 at 140 °C; activation energy = 0.59 eV; optical band gap = 0.6 eV). The structure and properties of the amorphous conductor are fully characterized by AC impedance spectroscopy, X-ray photoelectron spectroscopy, X-ray pair distribution function analysis, infrared spectroscopy, diffuse reflectance spectroscopy, electron spin resonance spectroscopy, elemental analysis, thermogravimetric analysis, and theoretical calculations.
AU  - Tominaka,S
AU  - Hamoudi,H
AU  - Suga,T
AU  - Bennett,TD
AU  - Cairns,AB
AU  - Cheetham,AK
DO  - 10.1039/c4sc03295k
EP  - 1473
PY  - 2015///
SN  - 2041-6520
SP  - 1465
TI  - Topochemical conversion of a dense metal-organic framework from a crystalline insulator to an amorphous semiconductor
T2  - Chemical Science
UR  - http://dx.doi.org/10.1039/c4sc03295k
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000348147100077&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://pubs.rsc.org/en/content/articlelanding/2015/SC/C4SC03295K#!divAbstract
UR  - http://hdl.handle.net/10044/1/77224
VL  - 6
ER  -
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