Dear XAFS community,
Does anyone have a Fe K-edge XAS spectrum of maghemite (gamma-Fe2O3) sample
or standard?
Thank you in advance.
Best,
Christian Wittee Lopes
--
Christian Wittee Lopes
Professor Adjunto
*Departamento de Química - Setor de Ciências Exatas*
Universidade Federal do Paraná
Hi everyone,
I would like to have a discussion about the common EXAFS for single atom
catalysts. It is usually observed that there is only one strong peak around
1.5A in EXAFS, and it is attributed to the nearest neighbors of O or N. Take an
example of Pt1/CeO2 catalyst. Pt single atom is
Dear Christian,
Check this database:
https://mdr.nims.go.jp/concern/datasets/1n79h782t?locale=en
I hope it helps.
Best regards.
(^ㅇᆽㅇ^)(=˃ᆺ˂=)(= ༝ =)
Eugenio H. OTAL
Assistant Professor
Dept. of Materials Chemistry
Shinshu University
4-17-1 Wakasato, Nagano 380-8553, JAPAN
Hi,
Average of 3 scans from APS-20BM, 2s/pt per scan...commercial powder
(ground, Alfa?) on tape.
Data were collected in 2009. I would have to dig to find out how many
layers...around 8...
Reference Fe foil measured simultaneously in transmission - no shift
between scans.
Si(111), 80%-ish
Hi Qiang:
It is exactly as you say. The number of metal-metal paths is small and not
well ordered. This washes out the scattering significantly. If the Pt is
in a more rigid well-ordered structure the second "shell" path is generally
more visible.
Carlo
On Thu, Feb 8, 2024 at 1:08 PM Qiang
Dear Christian,
some XES and HERFD data on maghemite in our database:
[ https://www.sshade.eu/data/experiment/EXPERIMENT_SOC_20181115_005 |
https://www.sshade.eu/data/experiment/EXPERIMENT_SOC_20181115_005 ]
Cheers
Denis
De: "Christian Wittee Lopes"
À: "XAFS Analysis using Ifeffit"
