####################################################
# Joo Kang <kang@mrl.uiuc.edu>
# requesting 5 days, at minimum=4 days
# beamline 33BM, EXAFS studies of supported metallic nanoparticles
# instrument 33BM-B XAFS
####################################################
# top:/home/www/beamtime-requests/req01122.txt
# UNICAT Member Beam Time Request  #1122
# created Tue Mar 13 15:15:47 CDT 2007
####################################################

apsrun:
	2007-01

beamline:
	33BM

collaboration:
	No

collaborator_Jenia:
	ON

contact:
	kang@mrl.uiuc.edu

days:
	5

description:
	Geometric and electronic structural behaviors of supported Pt nanoparticles will be studied for their temperature dependencies in oxidizing, reducing and inert environment. Several different supported Pt particles (1-5 wt % of Pt, on carbon and on alumina) will be studied in a home-built, in-situ EXAFS cell in the temperature range of 100 to 700 K. The temperature will be controlled by liquid nitrogen and resistive heating element. The following gases are used: 4 % hydrogen, 100 % hydrogen, 20 % oxygen, 100 % nitrogen and 100 % helium. A flash arrestor and a flow restrictor approved for H2 will be connected from the 100 % hydrogen cylinder. Only stainless steel tubing will be used for all gas lines.

equipment_required:
	

experiment:
	EXAFS studies of supported metallic nanoparticles

foreign_nationals:
	Joo Kang

hazards:
	

instrument:
	33BM-B XAFS

instrument_other:
	

minimumdays:
	4

name:
	Joo Kang

nonmembers:
	

submit:
	Submit

unacceptable_dates:
	*** This is a request for run 2007-02 ***

07/01/2007-07/08/2007;
on or after 8/12/2007

z34ID_details:
	


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