IRREVERSIBLE POISONING OF PD-AG MEMBRANES

Authors
ALI JK HASLER P NEWSON EJ RIPPIN DWT
Citation
Jk. Ali et al., IRREVERSIBLE POISONING OF PD-AG MEMBRANES, International journal of hydrogen energy, 19(11), 1994, pp. 877-880
Citations number
9
Categorie Soggetti
Energy & Fuels","Environmental Sciences","Physics, Atomic, Molecular & Chemical
Journal title
International journal of hydrogen energy → ACNP
ISSN journal
03603199
Volume
19
Issue
11
Year of publication
1994
Pages
877 - 880
Database
ISI
SICI code
0360-3199(1994)19:11<877:IPOPM>2.0.ZU;2-B
Abstract
Significant irreversible poisoning of a palladium-silver (Pd-Ag) membr ane was observed when a commercial bimetallic noble metal dehydrogenat ion catalyst containing germanium (Gel and chlorine (Cl) was tested in a catalytic membrane reactor (CMR). The presence of Ge on the membran e surface, verified by X-ray diffraction (XRD) and secondary ion mass spectrometry (SIMS), reduced its H-2 permeability by 35%. Structural d ifferences of the membranes' surface were also observed by scanning el ectron microscopy (SEM).