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{Leung:2018:10.1039/c7sc04256f,
author = {Leung, AHM and Pike, SD and Clancy, AJ and Yau, HC and Lee, WJ and Orchard, KL and Shaffer, MSP and Williams, CK},
doi = {10.1039/c7sc04256f},
journal = {CHEMICAL SCIENCE},
pages = {2135--2146},
title = {Layered zinc hydroxide monolayers by hydrolysis of organozincs},
url = {http://dx.doi.org/10.1039/c7sc04256f},
volume = {9},
year = {2018}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - 2D inorganic materials and their exfoliated counterparts are both of fundamental interest and relevant for applications including catalysis, electronics and sensing. Here, a new bottom-up synthesis route is used to prepare functionalised nanoplatelets, in apolar organic solvents, via the hydrolysis of organometallic reagents; the products can be prepared in high yield, at room temperature. In particular, a series of layered zinc hydroxides, coordinated by aliphatic carboxylate ligands, were produced by the hydrolysis of diethyl zinc and zinc carboxylate mixtures, optimally at a molar ratio of [COOR]/[Zn] = 0.6. Layered zinc hydroxides coordinated by oleate ligands form high concentration solutions of isolated monolayers (3 nm thick x ∼ 26 nm) in apolar organic solvents (up to 23 mg mL−1 in toluene), as confirmed by both atomic force and transmission electron microscopies of deposited species. The high solubility of the product allows the synthetic pathway to be monitored directly in situ through 1H NMR spectroscopy. The high solubility also provides a route to solution deposition of active functional materials, as illustrated by the formation of nanoporous films of optically transparent porous zinc oxide (1 μm thickness) after annealing at 500 °C. This new organometallic route to 2D materials obviates common complications of top-down exfoliation syntheses, including sonochemical-degradation and low yields of aggregated polydispersed layers, and may potentially be extended to a wide range of systems.
AU - Leung,AHM
AU - Pike,SD
AU - Clancy,AJ
AU - Yau,HC
AU - Lee,WJ
AU - Orchard,KL
AU - Shaffer,MSP
AU - Williams,CK
DO - 10.1039/c7sc04256f
EP - 2146
PY - 2018///
SN - 2041-6520
SP - 2135
TI - Layered zinc hydroxide monolayers by hydrolysis of organozincs
T2 - CHEMICAL SCIENCE
UR - http://dx.doi.org/10.1039/c7sc04256f
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000427091500011&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - http://hdl.handle.net/10044/1/59353
VL - 9
ER -