A SIMS study of the interaction of potassium carbonate with carbon black

Jo Shu Chang; Lee L. Lauderback; John L. Falconer

doi:10.1016/0021-9517(90)90257-K

A SIMS study of the interaction of potassium carbonate with carbon black

Jo Shu Chang, Lee L. Lauderback, John L. Falconer

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

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Abstract

Secondary ion mass spectrometry combined with isotopic labeling has been applied to study the interaction of potassium carbonate (K₂C¹⁸O₃) with carbon black (¹³C) at 300-1500 K. The SIMS analysis shows that K₂CO₃ decomposes above 800 K to form K₂O, which subsequently decomposes at 1070 K. A K₂O surface species was identified by SIMS at all the temperatures studied. The presence of K₂O before K₂CO₃ thermally decomposes is attributed to the presence of H₂O in the original sample, and a model is presented to explain K₂O formation.

Original language	English
Pages (from-to)	10-21
Number of pages	12
Journal	Journal of Catalysis
Volume	122
Issue number	1
DOIs	https://doi.org/10.1016/0021-9517(90)90257-K
Publication status	Published - 1990 Mar

All Science Journal Classification (ASJC) codes

Catalysis
Physical and Theoretical Chemistry

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10.1016/0021-9517(90)90257-K

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title = "A SIMS study of the interaction of potassium carbonate with carbon black",

abstract = "Secondary ion mass spectrometry combined with isotopic labeling has been applied to study the interaction of potassium carbonate (K2C18O3) with carbon black (13C) at 300-1500 K. The SIMS analysis shows that K2CO3 decomposes above 800 K to form K2O, which subsequently decomposes at 1070 K. A K2O surface species was identified by SIMS at all the temperatures studied. The presence of K2O before K2CO3 thermally decomposes is attributed to the presence of H2O in the original sample, and a model is presented to explain K2O formation.",

author = "Chang, {Jo Shu} and Lauderback, {Lee L.} and Falconer, {John L.}",

note = "Funding Information: ACKNOWLEDGMENTS Support by the Department of Energy, Pittsburgh Energy Technology Center (Grant DE-FG22-85PC80507) is gratefully acknowledged. Equipment Grant CPE 8305341 from the National Science Foundation is also gratefully acknowledged. Valuable discussions with Dr. John M. Saber are greatly appreciated.",

year = "1990",

month = mar,

doi = "10.1016/0021-9517(90)90257-K",

language = "English",

volume = "122",

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journal = "Journal of Catalysis",

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T1 - A SIMS study of the interaction of potassium carbonate with carbon black

AU - Chang, Jo Shu

AU - Lauderback, Lee L.

AU - Falconer, John L.

N1 - Funding Information: ACKNOWLEDGMENTS Support by the Department of Energy, Pittsburgh Energy Technology Center (Grant DE-FG22-85PC80507) is gratefully acknowledged. Equipment Grant CPE 8305341 from the National Science Foundation is also gratefully acknowledged. Valuable discussions with Dr. John M. Saber are greatly appreciated.

PY - 1990/3

Y1 - 1990/3

N2 - Secondary ion mass spectrometry combined with isotopic labeling has been applied to study the interaction of potassium carbonate (K2C18O3) with carbon black (13C) at 300-1500 K. The SIMS analysis shows that K2CO3 decomposes above 800 K to form K2O, which subsequently decomposes at 1070 K. A K2O surface species was identified by SIMS at all the temperatures studied. The presence of K2O before K2CO3 thermally decomposes is attributed to the presence of H2O in the original sample, and a model is presented to explain K2O formation.

AB - Secondary ion mass spectrometry combined with isotopic labeling has been applied to study the interaction of potassium carbonate (K2C18O3) with carbon black (13C) at 300-1500 K. The SIMS analysis shows that K2CO3 decomposes above 800 K to form K2O, which subsequently decomposes at 1070 K. A K2O surface species was identified by SIMS at all the temperatures studied. The presence of K2O before K2CO3 thermally decomposes is attributed to the presence of H2O in the original sample, and a model is presented to explain K2O formation.

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A SIMS study of the interaction of potassium carbonate with carbon black

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