####################################################
# Takeshi Egami <egami@utk.edu>
# requesting 4 days, at minimum=2 days
# beamline 33BM, Local Atomic Structure of Electro-catalysts for Fuel Cell Applications
# instrument 33BM-C fourc
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# top:/home/www/beamtime-requests/req00539.txt
# UNICAT Member Beam Time Request  #539
# created Fri Dec 12 15:39:06 CST 2003
####################################################

beamline:
	33BM

collaboration:
	Yes

collaborator_Paul:
	ON

contact:
	egami@utk.edu

days:
	4

description:
	Decreasing the amount of Pt in fuel cell catalysts is one of the most critical task in feul cell development. We developed new transition metal oxide-based systems with an order of magnitude less Pt than ordinary catalyst. Pt is not in the metallic state but is partially oxydized, and the local environment is the key to the effectivenss. The purpose of the proposed experiment is to determine the pair-density function (PDF) using high-energy (30-40 keV) x-rays to study the local structure and nano-crystallinity of the catalytic systems. We will carry out a powder diffraction measurement with a Ge detector to separate fluorescence and Compton scattering, and convert the result into the PDF.

equipment_required:
	

experiment:
	Local Atomic Structure of Electro-catalysts for Fuel Cell Applications

foreign_nationals:
	W. Dwmoski (green card)

hazards:
	No hazard is expected.

instrument:
	33BM-C fourc

instrument_other:
	

minimumdays:
	2

name:
	Takeshi Egami

new_request:
	ON

nonmembers:
	W. Dmowski

unacceptable_dates:
	

z34ID_details:
	


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