An 17O NMR study on oxygen exchange in YBa2Cu3O7-x

Emannuel Ramli; Edward A. Ganja; Linda Reven; Eric Oldfield; Thomas B. Rauchfuss

doi:10.1016/0022-4596(90)90144-M

An ¹⁷O NMR study on oxygen exchange in YBa₂Cu₃O_7-x

Emannuel Ramli, Edward A. Ganja, Linda Reven, Eric Oldfield, Thomas B. Rauchfuss

Chemistry

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

Abstract

This study evaluated the effect of reaction conditions on the extent and uniformity of ¹⁷O-labeled YBa₂Cu₃O_7-x. It was shown by ¹⁷O NMR spectroscopy and high-resolution SIMS that statistical ¹⁷O-enrichment is achieved at high temperatures by synthesis from oxides under an ¹⁷O₂ atmosphere, or by direct ¹⁷O₂ exchange of preformed YBa₂Cu₃O_7-x. Nonuniform enrichment can be achieved at low temperatures and with the use of short reaction times. An ¹⁷O₂ circulator is described which proved useful for handling, purifying, and recovering the labeled oxygen.

Original language	English (US)
Pages (from-to)	279-285
Number of pages	7
Journal	Journal of Solid State Chemistry
Volume	86
Issue number	2
DOIs	https://doi.org/10.1016/0022-4596(90)90144-M
State	Published - Jun 1990

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/0022-4596(90)90144-M

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Cite this

@article{24070d34437742a48d0fd306e7cb0438,

title = "An 17O NMR study on oxygen exchange in YBa2Cu3O7-x",

abstract = "This study evaluated the effect of reaction conditions on the extent and uniformity of 17O-labeled YBa2Cu3O7-x. It was shown by 17O NMR spectroscopy and high-resolution SIMS that statistical 17O-enrichment is achieved at high temperatures by synthesis from oxides under an 17O2 atmosphere, or by direct 17O2 exchange of preformed YBa2Cu3O7-x. Nonuniform enrichment can be achieved at low temperatures and with the use of short reaction times. An 17O2 circulator is described which proved useful for handling, purifying, and recovering the labeled oxygen.",

author = "Emannuel Ramli and Ganja, {Edward A.} and Linda Reven and Eric Oldfield and Rauchfuss, {Thomas B.}",

note = "Funding Information: This research was supported by the National Science Foundation through Grants NSF DMR 86-12860 and 88-14789. We thank Dr. Lenore Koczon for preliminary studies, Dr. John Fitzpatrick (Los Alamos National Laboratories) for providing i702 gas, and Professor Kenneth Suslick and his research group for help with the design of the circulator pump.",

year = "1990",

month = jun,

doi = "10.1016/0022-4596(90)90144-M",

language = "English (US)",

volume = "86",

pages = "279--285",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

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T1 - An 17O NMR study on oxygen exchange in YBa2Cu3O7-x

AU - Ramli, Emannuel

AU - Ganja, Edward A.

AU - Reven, Linda

AU - Oldfield, Eric

AU - Rauchfuss, Thomas B.

N1 - Funding Information: This research was supported by the National Science Foundation through Grants NSF DMR 86-12860 and 88-14789. We thank Dr. Lenore Koczon for preliminary studies, Dr. John Fitzpatrick (Los Alamos National Laboratories) for providing i702 gas, and Professor Kenneth Suslick and his research group for help with the design of the circulator pump.

PY - 1990/6

Y1 - 1990/6

N2 - This study evaluated the effect of reaction conditions on the extent and uniformity of 17O-labeled YBa2Cu3O7-x. It was shown by 17O NMR spectroscopy and high-resolution SIMS that statistical 17O-enrichment is achieved at high temperatures by synthesis from oxides under an 17O2 atmosphere, or by direct 17O2 exchange of preformed YBa2Cu3O7-x. Nonuniform enrichment can be achieved at low temperatures and with the use of short reaction times. An 17O2 circulator is described which proved useful for handling, purifying, and recovering the labeled oxygen.

AB - This study evaluated the effect of reaction conditions on the extent and uniformity of 17O-labeled YBa2Cu3O7-x. It was shown by 17O NMR spectroscopy and high-resolution SIMS that statistical 17O-enrichment is achieved at high temperatures by synthesis from oxides under an 17O2 atmosphere, or by direct 17O2 exchange of preformed YBa2Cu3O7-x. Nonuniform enrichment can be achieved at low temperatures and with the use of short reaction times. An 17O2 circulator is described which proved useful for handling, purifying, and recovering the labeled oxygen.

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