TY - JOUR
T1 - Onsager heat of transport of carbon dioxide at the surface of aqueous ammonia
T2 - The remarkable effect of carbamate formation
AU - Packwood, Daniel M.
AU - Phillips, Leon F.
N1 - Funding Information:
This work was supported by the Marsden Fund (administered by the Royal Society of New Zealand) and by the United States National Science Foundation, EMSI grant CHE-0431512. DMP is grateful for the award of a Top Achiever’s Doctoral Scholarship.
PY - 2010/11/10
Y1 - 2010/11/10
N2 - The Onsager heat of transport Q has been measured for CO2 at the surface of aqueous ammonia. The heat of transport incorporates the enthalpy of reaction of gaseous CO2 with ammonia, adsorbed on the liquid surface, to form adsorbed ammonium carbamate, with the result that -Q has the unusually large value of 180 kJ mol-1. Measurement of Q for transfer of a reactive species through a surfactant monolayer is proposed as a new method of studying reactions at liquid and quasi-liquid surfaces.
AB - The Onsager heat of transport Q has been measured for CO2 at the surface of aqueous ammonia. The heat of transport incorporates the enthalpy of reaction of gaseous CO2 with ammonia, adsorbed on the liquid surface, to form adsorbed ammonium carbamate, with the result that -Q has the unusually large value of 180 kJ mol-1. Measurement of Q for transfer of a reactive species through a surfactant monolayer is proposed as a new method of studying reactions at liquid and quasi-liquid surfaces.
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U2 - 10.1016/j.cplett.2010.09.053
DO - 10.1016/j.cplett.2010.09.053
M3 - Article
AN - SCOPUS:78649978332
SN - 0009-2614
VL - 500
SP - 120
EP - 122
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 1-3
ER -