Oct 2023 C. Zhang,
H. Eraky, S. Tan, A.P.
Hitchcock and D. Higgins Simultaneously Monitoring Chemical and
Morphological Changes in
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 fuel cells, 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, and tge investigation
of polymer electrolyte membrane fuel cell electrodes under
realistic (T,RH. 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.
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). 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 including the first demonstration of ptychography at the C 1s edge.
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. In October 2022, a new monochomator was installed, providing enhanced performance over the full 130 -3000 eV range, with a 10-fold improvement abouve 2000 eV, due to introduction of a wide-range, multilayer coating.
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 !
© 2023 A.P. Hitchcock /
McMaster University - All Rights Reserved