Examples of our research - click on images for details

              


Contact Info

Adam P. Hitchcock

Chemistry & ChemBio
B.I.M.R
McMaster University
Hamilton, ON
Canada L8S 4M1
V: +1 905 525-9140
    x24749
F: +1 905 521-2773
E: aph@mcmaster.ca
U: unicorn.mcmaster.ca
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RECENT PUBLICATIONS:

Aug 2022 "STXM studies of electrochemical activation and capacitive behavior of Mn3O4 supercapacitor electrodes,
                  J. Mat. Chem A (2022) in press. doi: 10.1039/d2ta04702k.
Jun 2022 "Chemical Structure and Distribution in Nickel-Nitrogen-Carbon Catalysts for CO2 Electroreduction Identified
                    by Scanning Transmission X-ray Microscopy, ACS Catalysis 12 (2022) 8746 doi.org/10.1021/acscatal.2c01255
Feb 2022 "Ptychography at the carbon K-edge", Communication Materials 3 (2022) 8. doi: 10.1038/s43246-022-00232-8
Jan 2022 "Polymer surface characterization by near edge X-ray absorption fine structure spectroscopy," Chapter 3, in
                    Polymer Surface Characterization, L. Sabbatini (Ed.) 2nd edition (De Gruyter, Berlin, Germany, 2022)


LATEST VERSION of aXis2000 - 28 Aug 2022               LATEST VERSION of soft X-ray Microscopy Bibliography - 04 July 2021

The Hitchcock group develops new instruments, methods and applications of inner shell excitation spectroscopies and microscopies for analysis of advanced materials. We are particularly active in the application of X-ray microscopy to energy materials [PEM fuelcells, CO2 reduction catalysts, supercapacitors], polymers, nanostructures, biomaterials, magnetotactic bacteria, environmental studies. A focus at present is in situ and operando methods, such as in situ flow electrochemistry, investigation of polymer electrolyte membrane fuel cell electrodes under realistic (T,RH), and studies of peptide - model lipid membrane interactions. We also use electron impact and synchrotron methods to advance our understanding ot the fundamentals of Inner shell excitation spectroscopy of gases, surfaces, solids and liquids.

A common theme of all projects is the development of new experimental techniques based on electron impact and X-ray absorption phenomena, and optimization of their application to a wide variety of chemical, physical and materials problems. Collaborations with researchers in industry, government, and other universities play a large role in our approach to promote interest in, and practical uses for, inner-shell spectroscopies. Typically, these collaborations combine the group's expertise in X-ray and electron impact spectroscopic analysis with chemical, materials or physical problems motivated by the collaborating group.

Our group has helped develop the most advanced analytical soft X-ray microscope in the world (a scanning transmission X-ray microscope at the Advanced Light Source in Berkeley, and lead the mplementation of STXMs at the Canadian Light Source (CLS) in Saskatoon). We are exploring new applications on a monthly basis. Over the past 5 years, in collaboration with instrument developers and scientists at the CLS, we have helped develop a new cryo-STXM with capabilities for cryo-spectro-tomography. We are helping to develop analysis software and applications of soft X-ray ptychography.

The CLS soft X-ray spectroscopy beamline (SM) features two scanning transmission X-ray microscopes (STXM) and an X-ray photoemission electron microscope (X-PEEM) on separate branch lines of a high performance plane grating monochromator beamline, illuminated by an elliptically polarized undulator.

Please explore the pages of this web site. It contains highlights of our research, information about group members, opportunities for research positions, a list our publications (with links to pdfs), and links to tools we provide to others - aXis2000, BAN, the Core Excitation Bibiography and Database (~600 spectra of ~400 gas phase compounds!!), and a X-ray microscopy bibliography as well as links to related sites.

Enjoy your visit !

 

2022 A.P. Hitchcock / McMaster University - All Rights Reserved
web page design by Christopher Amis (2002). Last updated on 28 Aug 2022
(aph)