Adsorption of oxygen on YBa2Cu3O7-x and (Bi,Pb)2Sr2Ca2Cu3Ox superconducting adsorbents

Ryan D. Gordon, Edward L Cussler Jr

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


The adsorption of oxygen on a high-temperature superconductor is not inhibited by superconducting forces. The equilibrium adsorption isotherms of oxygen and nitrogen on superconducting YBa2Cu3O7-x and (Bi,Pb)2Sr2Ca2Cu3Ox at 77 K are equivalent. Moreover, the equilibrium adsorption of oxygen on superconducting YBa2Cu3O7-x and (Bi,Pb)2Sr2Ca2Cu3Ox and on nonsuperconducting SiO2 at 77 K are equivalent. These results agree with theoretical arguments that predict the magnetic repulsion of oxygen from a superconductor to be significant over a distance of angstroms. At these distances, the magnetic forces are constrained by the superconductor's penetration depth and no Meissner effect is observed, contrary to the results of past reports.

Original languageEnglish (US)
Pages (from-to)3950-3955
Number of pages6
Issue number11
StatePublished - May 25 1999


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