Interaction of potassium carbonate with surface oxides of carbon
Interactions between isotopically labelled potassium carbonate (K 2 1 3CO 3) and surface oxides on carbon were studied by temperature-programmed reaction, using carbons with different surface-oxide concentrations. 13CO 2 was produced < 1000 K due to isotope exchange between the carbonate and surf...
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Published in | Fuel (Guildford) Vol. 65; no. 10; pp. 1356 - 1359 |
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Main Authors | , , |
Format | Journal Article Conference Proceeding |
Language | English |
Published |
Oxford
Elsevier Ltd
01.10.1986
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | Interactions between isotopically labelled potassium carbonate (K
2
1
3CO
3) and surface oxides on carbon were studied by temperature-programmed reaction, using carbons with different surface-oxide concentrations.
13CO
2 was produced < 1000 K due to isotope exchange between the carbonate and surface oxides originally on the carbon. Carbons with a lower oxygen-content lost more potassium via volatilization than those with higher oxygen contents. The results presented explain previous observations of different temperatures for the apparent onset of potassium carbonate decomposition on carbon, potassium losses on heating, and surface K:O ratios. |
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ISSN: | 0016-2361 1873-7153 |
DOI: | 10.1016/0016-2361(86)90103-1 |