Articles | Volume 16, issue 23
Research article
12 Dec 2016
Research article |  | 12 Dec 2016

Heterogeneous reaction of ClONO2 with TiO2 and SiO2 aerosol particles: implications for stratospheric particle injection for climate engineering

Mingjin Tang, James Keeble, Paul J. Telford, Francis D. Pope, Peter Braesicke, Paul T. Griffiths, N. Luke Abraham, James McGregor, I. Matt Watson, R. Anthony Cox, John A. Pyle, and Markus Kalberer

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Cited articles

Ammann, M., Cox, R. A., Crowley, J. N., Jenkin, M. E., Mellouki, A., Rossi, M. J., Troe, J., and Wallington, T. J.: Evaluated kinetic and photochemical data for atmospheric chemistry: Volume VI – heterogeneous reactions with liquid substrates, Atmos. Chem. Phys., 13, 8045–8228,, 2013.
Anderson, L. C. and Fahey, D. W.: Studies with ClONO2: Thermal-dissociation rate and catalytic conversion to NO using an NO/O3 chemi-luminescence detector, J. Phys. Chem., 94, 644–652, 1990.
Ball, S. M., Fried, A., Henry, B. E., and Mozurkewich, M.: The hydrolysis of ClONO2 on sub-micron liquid sulfuric acid aerosol, Geophys. Res. Lett., 25, 3339–3342, 1998.
Ballard, J., Johnston, W. B., Gunson, M. R., and Wassell, P. T.: Absolute absorption coefficients of ClONO2 infrared bands at stratospheric temperatures, J. Geophys. Res.-Atmos, 93, 1659–1665, 1988.
Short summary
We have investigated for the first time the heterogeneous hydrolysis of ClONO2 on TiO2 and SiO2 aerosol particles at room temperature and at different relative humidities (RHs), using an aerosol flow tube. The kinetic data reported in our current and previous studies have been included in the UKCA chemistry–climate model to assess the impact of TiO2 injection on stratospheric chemistry and stratospheric ozone in particular.
Final-revised paper