Contamination of silver by chlorine?
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Al Slavin
Jan 24, 2012, 2:40:04 PM1/24/12
to surface...@googlegroups.com, Al Slavin
I have found that the silver electrodes on commercial QCM crystals develop a strong 181-eV Auger peak after they have been cleaned by ion bombardment and then allowed to sit in vacuum for several hours at 35 C or above. I SUSPECT that this peak is from chlorine which is a contaminant in the silver and segregates to the surface on heating.
Can the chlorine be removed by extended annealing in a reactive gas? What gas would be best?
Any other suggestions?
Alan Slavin
nadir
Feb 7, 2012, 9:31:11 AM2/7/12
to Surface Science
Hi Alan,
I am not sure but atomic hydrogen might be able to remove Cl
contamination on silver surface even without annealing.
Nadir Faradzhev
I am not sure but atomic hydrogen might be able to remove Cl
contamination on silver surface even without annealing.
Nadir Faradzhev
nadir
Feb 7, 2012, 10:09:12 AM2/7/12
to Surface Science
Al, please note that I suggested to use atomic hydrogen. To split
molecular hydrogen into two atoms you need some energy (e.g. ~ 1800
degrees on tungsten filament). Unless a heated silver will do it for
you, the reaction yield is expected very low. Nadir
molecular hydrogen into two atoms you need some energy (e.g. ~ 1800
degrees on tungsten filament). Unless a heated silver will do it for
you, the reaction yield is expected very low. Nadir
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