DSpace Repository

Chemisorption of Hydrogen on Evaporated Copper Films

Show simple item record

dc.contributor.author Alexander, C S
dc.contributor.author Pritchard, J
dc.date.accessioned 2025-02-04T14:35:13Z
dc.date.available 2025-02-04T14:35:13Z
dc.date.issued 1972
dc.identifier.uri http://dspace.bits-pilani.ac.in:8080/jspui/handle/123456789/17168
dc.description.abstract Surface potentials (s.p.) of atomic hydrogen adsorbed at low temperatures on clean copper films show wide variations from one film to another. This is believed to reflect varying proportions of different crystal planes. Initial adsorption with a negative s.p. may be followed by a weaker adsorption with a positive effect. The negative s.p. corresponds to hydrogen which can be in equilibrium with gaseous molecular hydrogen. This spontaneous dissociative chemisorption has been studied between 242 and 337 K at pressures up to 60 Torr, using vibrating capacitor s.p. measurements to follow the equilibrium concentration of adatoms. Isosteric heats (typically 40-50 kJ mol-1) are almost independent of coverage on some films, and a major part of the adsorption can then be described approximately by the Langmuir isotherm for dissociative adsorption. en_US
dc.language.iso en en_US
dc.publisher Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1972, 68 (2) en_US
dc.subject Chemistry en_US
dc.subject Chemisorption en_US
dc.subject Hydrogen en_US
dc.subject Evaporated Copper Films en_US
dc.subject Journal of the Chemical Society : Faraday Transaction - I en_US
dc.title Chemisorption of Hydrogen on Evaporated Copper Films en_US
dc.type Article en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search DSpace


Advanced Search

Browse

My Account