Browsing by Author "O'NEILL, ARLENE"
Now showing items 1-11 of 11
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High strength composite fibres from polyester filled with nanotubes and graphene
KHAN, UMAR; O'NEILL, ARLENE; COLEMAN, JONATHAN (2012)We have prepared composite fibres based on the polyester, polyethylene terephthalate (PET), filled with both single walled nanotubes and graphene by a combination of solution and melt processing. On addition of ?2 wt% ... -
Hydrogen evolution across nano-Schottky junctions at carbon supported MoS 2 catalysts in biphasic liquid systems
O'NEILL, ARLENE; COLEMAN, JONATHAN (2012)The activities of a series of MoS 2-based hydrogen evolution catalysts were studied by biphasic reactions monitored by UV/Vis spectroscopy. Carbon supported MoS 2 catalysts performed best due to an abundance of catalytic ... -
Improving the mechanical properties of graphene oxide based materials by covalent attachment of polymer chains
KHAN, UMAR; O'NEILL, ARLENE; MCGOVERN, IGNATIUS; COLEMAN, JONATHAN (2013)We report on the modification of graphene oxide (GO) with polyvinylalcohol (PVA) leading to the mechanical improvement of GO based materials. First, GO was covalently functionalised with PVA by esterification of carboxylic ... -
Polymer reinforcement using liquid-exfoliated boron nitride nanosheets
O'NEILL, ARLENE; COLEMAN, JONATHAN; KHAN, UMAR; MAY, PETER (2013)We have exfoliated hexagonal boron nitride by ultrasonication in solutions of polyvinylalcohol in water. The resultant nanosheets are sterically stabilised by adsorbed polymer chains. Centrifugation-based size-selection ... -
Preparation of high concentration dispersions of exfoliated MoS 2 with increased flake size
COLEMAN, JONATHAN NESBIT; O'NEILL, ARLENE; KHAN, UMAR (2012)Solvent exfoliation of inorganic layered compounds is likely to be important for a range of applications. However, this method generally gives dispersions of small nanosheets at low concentrations. Here we describe methods, ...