Ayotte Lab

Our group is investigating physics and chemistry of ices. We use various surface science techniques to probe complex reaction dynamics as well as underlying mechanisms occurring in ice and at its surface. Through molecular modelling and numerical simulations, we endeavour to provide molecular level interpretations leading to a better understanding of environmental problems such as heterogeneous chemistry phenomena occurring in the atmosphere.

Recent Publications

Surface-Enhanced Nitrate Photolysis on Ice
G. Marcotte, P. Marchand, S. Pronovost, P. Ayotte, C. Laffon, P. Parent. J. Phys. Chem. A 2015. doi:10.1021/jp511173w

Manipulation of block copolymer vesicles using CO2: Dissociation or “breathing”
B. Yan, D. Han, O. Boissière, P. Ayotte, Y. Zhao, Soft Matter2013, 9, 2011-2016.

Dissociative adsorption of nitric acid at the surface of amorphous solid water revealed by X-ray absorption spectroscopy
G. Marcotte, P. Ayotte, A. Bendounan, F. Sirotti, C. Laffon, P. Parent, Journal of Physical Chemistry Letters2013, 4, 2643-2648.

Preparation, isolation, storage, and spectroscopic characterization of water vapor enriched in the ortho-H2O nuclear spin isomer
P.-A. Turgeon, P. Ayotte, E. Lisitsin, Y. Meir, T. Kravchuk, G. Alexandrowicz, Physical Review A – Atomic, Molecular, and Optical Physics2012, 86.

Spectroscopic study of HNO3 dissociation on ice
P. Marchand, G. Marcotte, P. Ayotte, Journal of Physical Chemistry A2012, 116, 12112-12122.