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Publication Information

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Title: NO adsorption on ice at low concentrations

Author: Sommerfeld, Richard A.; Conklin, Martha H.; Laird, S. Kay;

Date: 1992

Source: Journal of Colloid and Interface Science. 149(2): 569-574.

Publication Series: Scientific Journal (JRNL)

Description: To better understand the properties of ice surfaces at different temperatures, the adsorption of a relatively insoluble gas, NO, was studied using a continuous-flow column experiment. Adsorption isotherms for NO on the surface of ice were measured for a temperature range of-1 to -70°C and a concentration range of 10 to 250 ppbv. Very little adsorption was measured; surface concentrations were near the detection limit of +- 10-10 g m-2, limiting the precision of the data. Although a relatively large proportion of ice-ice surfaces were present, no grain boundary effect was detectable. NO sorption was observed to increase with decreasing temperature. From a van't Hoff plot, preliminary evidence indicating a change of sorption mechanism at -10°C was obtained. This may be evidence for the effects of surface premelting

Keywords: NO adsorption, ice surfaces

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Sommerfeld, Richard A.; Conklin, Martha H.; Laird, S. Kay. 1992. NO adsorption on ice at low concentrations. Journal of Colloid and Interface Science. 149(2): 569-574.

 


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