https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:13676 Wed 11 Apr 2018 14:44:49 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:13680 − anion-enriched layer is more lubricating than either the [BMIM]⁺ or FAP^- layers. The effect of cation charged group (charge-delocalised versus charged-localised) was investigated by comparing [BMIM] FAP with 1-butyl-1-methylpyrrolidinium tris(pentafluoroethyl)trifluorophosphate ([Py] FAP). [BMIM] FAP is less lubricating at negative potentials, but more lubricating at positive potentials. This indicated that even at positive potentials the cation concentration in the boundary layer is sufficiently high to influence lubricity. The influence of sliding velocity on lateral force was investigated for the [EMIM] FAP–Au(111) system. At neutral potentials the behaviour is consistent with a discontinuous sliding process. When a positive or negative potential bias is applied, this effect is less pronounced as the colloid probe slides along a better defined ion plane.]]> Wed 11 Apr 2018 10:53:59 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:13681 + cations in the interfacial layer are orientated towards the Au(111) surface, and this more parallel orientation is favourable for templating structure. [HMIM] FAP is more strongly structured than [BMIM] FAP because the longer cation alkyl chain increases solvophobic interactions which lead to better defined near surface structure. The response of [BMIM] I to changes in potential is opposite to that of the FAP⁻ ILs. [BMIM] I interfacial nanostructure is stronger at positive potentials, because I− anions pack more neatly at the Au(111) surface than [BMIM]⁺ cations, which templates stronger structure in subsequent layers.]]> Wed 11 Apr 2018 10:11:54 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:13677 Tue 16 Jan 2024 16:24:28 AEDT ]]>