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

Ryan D. Gordon; Edward L Cussler Jr

doi:10.1021/la9815493

Adsorption of oxygen on YBa₂Cu₃O_7-x and (Bi,Pb)₂Sr₂Ca₂Cu₃O_x superconducting adsorbents

Ryan D. Gordon, Edward L Cussler Jr

Chemical Engineering and Materials Science

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

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 YBa₂Cu₃O_7-x and (Bi,Pb)₂Sr₂Ca₂Cu₃O_x at 77 K are equivalent. Moreover, the equilibrium adsorption of oxygen on superconducting YBa₂Cu₃O_7-x and (Bi,Pb)₂Sr₂Ca₂Cu₃O_x 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 language	English (US)
Pages (from-to)	3950-3955
Number of pages	6
Journal	Langmuir
Volume	15
Issue number	11
DOIs	https://doi.org/10.1021/la9815493
State	Published - May 25 1999

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

abstract = "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.",

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T1 - Adsorption of oxygen on YBa2Cu3O7-x and (Bi,Pb)2Sr2Ca2Cu3Ox superconducting adsorbents

AU - Gordon, Ryan D.

AU - Cussler Jr, Edward L

PY - 1999/5/25

Y1 - 1999/5/25

N2 - 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.

AB - 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.

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Adsorption of oxygen on YBa₂Cu₃O_7-x and (Bi,Pb)₂Sr₂Ca₂Cu₃O_x superconducting adsorbents

Abstract

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