Direct measurement of hydrogen diffusivity through Pd-coated Ni-based amorphous metallic membranes

Title
Direct measurement of hydrogen diffusivity through Pd-coated Ni-based amorphous metallic membranes
Authors
왕영임서진유이영수심재혁에릭플러리조영환고성웅
Keywords
Hydrogen diffusion; Amorphous alloys; Time-lag method
Issue Date
2013-06
Publisher
Journal of membrane science
Citation
VOL 436, 195-201
Abstract
A time-lag technique was employed to evaluate the chemical diffusivity and permeability of hydrogen through amorphous metallic alloys. As a reference, similar measurements were taken on pure palladium. While hydrogen diffusivity for the amorphous structures was smaller than that for a palladium membrane, the amorphous membranes exhibited higher hydrogen solubility, resulting in comparable hydrogen permeability. An increase in zirconium content increased permeability by enhancing hydrogen diffusivity, although the amount of hydrogen contributing to the hydrogen flux was not affected.
URI
http://pubs.kist.re.kr/handle/201004/44716
ISSN
03767388
Appears in Collections:
KIST Publication > Article
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