XPEEM studies of nanoscale metal oxide phases

Lead Research Organisation: University College London
Department Name: Chemistry

Abstract

Nanostructures can have different properties to those of bulk materials. This can derive from quantum size effects or simply from a difference in structure adopted as the size of a cluster decreases. There are many possible applications of these phenomena; for metal oxide nanostructures these include advanced sensors, catalysts, high-density visual displays, memory storage devices and environmental control. There is a clear need to understand the structure/function relationship of nanostructures in support of these applications. In this project, a new instrument, The Nanoscience Beamline, which is located at the diamond light source will be used to examine some topics related to nanocatalysis. These measurements will also provide a means to train a new scientist in this area. The beamline uses a technique called X-ray photoelectron microscopy (XPEEM), which can examine the chemical state of a surface in an area down to 20 nanometers (one nanometer is a billionth of a meter).

Publications

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Treacy J (2017) Geometric structure of anatase Ti O 2 ( 101 ) in Physical Review B

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Yim CM (2015) Influence of support morphology on the bonding of molecules to nanoparticles. in Proceedings of the National Academy of Sciences of the United States of America

 
Description PhD student successfully trained. Micro-NEXAFS measurements made using XPEEM. A methodology to interpret micro-NEXAFS using PEEM has been developed.
Exploitation Route The method of NEXAFS using XPEEM can be exploited by other researchers in surface science, catalysis and nano science.
Sectors Chemicals,Electronics,Energy,Environment