Davies, Philip - Cardiff University

个人简介

PhD, University College Cardiff (1989, M. W. Roberts). Appointed Lecturer in Chemistry, Cardiff, in 1989. Appointed Senior Lecturer 2000

研究领域

Our primary interest is understanding how a surface can modifies or direct a chemical reaction. The primary driver for our work has been heterogeneous catalysis where the surface has long been recognised critical in determining activity, selectivity and lifetime, but surface chemistry is an integral part of almost every heterogeneous system and thus our work is also relevant to aspects of adhesion, corrosion and biological activity. The core of our work has been concerned with understanding the reactions of molecules at surfaces characterised both chemically and structurally at the atomic level: the figure below for example, shows an atomically resolved image of a copper surface after reaction with phenyl iodide. The accompanying chart maps the changes in chemical composition as more of the reactant is adsorbed and reveals how high surface concentrations drive the formation and desorption of a biphenyl molecule leaving the surface covered in iodine. Other aspects of our work include studying the mechanism of photocatalysis, and in particular water splitting; characterising the decomposition pathways for archaeological iron (collaboration with the School of Conservation); investigating novel polymeric based sensors (collaboration with the School of Pharmacy) and exploring the anti-bacterial properties of nano-particulate silver (collaboration with the School of Pharmacy)

近期论文

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Lord, A.et al. 2017. Modifying the interface edge to control the electrical transport properties of nanocontacts to nanowires. Nano Letters 17(2), pp. 687-694. (10.1021/acs.nanolett.6b03699) pdf Davies, P. R. 2016. On the role of water in heterogeneous catalysis: a tribute to Professor M. Wyn Roberts. Topics in Catalysis 59(8), pp. 671-677. (10.1007/s11244-016-0539-5) pdf Altass, H.et al. 2015. XPS and STM studies of the oxidation of hydrogen chloride at Cu(100) surfaces. Surface Science 650, pp. 177-186. (10.1016/j.susc.2015.12.024) pdf Burgess, R.et al. 2015. The functionalisation of graphite surfaces with nitric acid: Identification of functional groups and their effects on gold deposition. Journal of Catalysis 323, pp. 10-18. (10.1016/j.jcat.2014.12.021) pdf Bahruji, H.et al. 2015. Rutile TiO2-Pd photocatalysts for hydrogen gas production from methanol reforming. Topics in Catalysis 58(2-3), pp. 70-76. (10.1007/s11244-014-0346-9) Bahruji, H.et al. 2015. The importance of metal reducibility for the photo-reforming of methanol on transition metal-TiO2 photocatalysts and the use of non-precious metals. International Journal of Hydrogen Energy 40(3), pp. 1465-1471. (10.1016/j.ijhydene.2014.11.097) Lord, A.et al. 2014. Surface state modulation through wet chemical treatment as a route to controlling the electrical properties of ZnO nanowire arrays investigated with XPS. Applied Surface Science 320, pp. 664-669. (10.1016/j.apsusc.2014.09.078) pdf Lord, A.et al. 2014. Enhanced long-path electrical conduction in ZnO nanowire array devices grown via defect-driven nucleation. Journal of Physical Chemistry C 118(36), pp. 21177-21184. (10.1021/jp505414u) pdf Davies, P.et al. 2014. Spectroscopic and atomic force studies of the functionalisation of carbon surfaces: new insights into the role of the surface topography and specific chemical states. Faraday Discussions 173, pp. 257-272. (10.1039/c4fd00061g) pdf Bowker, M.et al. 2014. Hydrogen production by photoreforming of biofuels using Au, Pd and Au-Pd/TiO2 photocatalysts. Journal of Catalysis 310, pp. 10-15. (10.1016/j.jcat.2013.04.005)