LISA STEPHENS
Ph.d. Student |
Research ProjectFinite element simulations of electrochemical processes
No matter what system is being investigated, most electrochemical processes can be described using either the equations of mass transport or kinetics. Knowing this, we can simulate the behaviour a wide variety of systems using simple equations in order to predict concentration profiles, local pH changes, and trends based on experimental conditions. My project involves using these equations in combination with finite element modelling techniques to study a wide variety of processes, including macro-scale investigating of corroding metal surfaces and micro-scale investigations of microelectrodes of varying geometry used to image the topography and reactivity of surfaces. This involves a mixture of predictive simulations and experimental validation to gain a deeper understanding of a wide variety of electrochemical processes. |
Education
Ph.D., Chemistry, McGill University, Canada, 2015 – Present
B.Sc., Chemistry, Queen's University, Canada, 2011-2015
B.Sc., Chemistry, Queen's University, Canada, 2011-2015
publications
Perry, S. C., Gateman, S. M., Stephens, L. I., Lacasse, R., Schulz, R., Mauzeroll, J., Pourbaix Diagrams as a Simple Route to First Principles Corrosion Simulation. Journal of the Electrochemical Society 2019, 166(11), C3186-C3192.
Stephens, L.I.; Payne, N.A.; Skaanvik, S.A.; Polcari, D.; Geissler, M.; Mauzeroll, J. Evaluating the Use of Edge Detection in Extracting Feature Size from Scanning Electrochemical Microscopy Images. Analytical Chemistry 2019, 91(6), 3944-3950.
Danis, A.S.; Gordon, J.B.; Potts, K.P.; Stephens, L.I.; Perry, S.C.; Mauzeroll, J. Simultaneous Electrochemical and Emission Monitoring of Electrogenerated Chemiluminescence through Instrument Hyphenation. Analytical Chemistry 2019, 91(3), 2312-2318.
Stephens, L.I.; Padmos, J.D.; Narouz, M.R.; Al-Rashed, A.; Li, C-H.; Payn, N.A.; Zamora, M.; Crudden, C.M.; Mauzeroll, J.; Horton, J.H. The Structural and Electrochemical Effects of N-Heterocyclic Carbene Monolayers on Magnesium. Journal of the Electrochemical Society 2018, 165(13), G139-G146.
Stephens, L.I.; Mauzeroll, J. Altered spatial resolution of scanning electrochemical microscopy induced by multifunctional dual barrel microelectrodes. Analytical Chemistry 2018, 90(11), 6796-6803.
Gateman, S.M.; Stephens, L.I.; Perry, S.C.; Lacasse, R.; Schulz, R.; Mauzeroll, J. The role of titanium in the initiation of localized corrosion of stainless steel 444. Nature Materials Degradation 2018, 2, 1-8.
Stephens, L.I.; Perry, S.C.; Gateman, S.M.; Lacasse, R.; Schulz, R.; Mauzeroll, J. Development of a model for experimental data treatment of diffusion and activation limited polarization curves for magnesium and steel alloys. Journal of the Electrochemical Society 2017, 164(11), E3576-E3582.
Payne, N.A.*; Stephens, L.I*.; Mauzeroll, J. The Application of Scanning Electrochemical Microscopy to Corrosion Research. Corrosion 2017, 73(7), 759-780.
* Co-first authors.
Stephens, L.I.; Payne, N.A.; Skaanvik, S.A.; Polcari, D.; Geissler, M.; Mauzeroll, J. Evaluating the Use of Edge Detection in Extracting Feature Size from Scanning Electrochemical Microscopy Images. Analytical Chemistry 2019, 91(6), 3944-3950.
Danis, A.S.; Gordon, J.B.; Potts, K.P.; Stephens, L.I.; Perry, S.C.; Mauzeroll, J. Simultaneous Electrochemical and Emission Monitoring of Electrogenerated Chemiluminescence through Instrument Hyphenation. Analytical Chemistry 2019, 91(3), 2312-2318.
Stephens, L.I.; Padmos, J.D.; Narouz, M.R.; Al-Rashed, A.; Li, C-H.; Payn, N.A.; Zamora, M.; Crudden, C.M.; Mauzeroll, J.; Horton, J.H. The Structural and Electrochemical Effects of N-Heterocyclic Carbene Monolayers on Magnesium. Journal of the Electrochemical Society 2018, 165(13), G139-G146.
Stephens, L.I.; Mauzeroll, J. Altered spatial resolution of scanning electrochemical microscopy induced by multifunctional dual barrel microelectrodes. Analytical Chemistry 2018, 90(11), 6796-6803.
Gateman, S.M.; Stephens, L.I.; Perry, S.C.; Lacasse, R.; Schulz, R.; Mauzeroll, J. The role of titanium in the initiation of localized corrosion of stainless steel 444. Nature Materials Degradation 2018, 2, 1-8.
Stephens, L.I.; Perry, S.C.; Gateman, S.M.; Lacasse, R.; Schulz, R.; Mauzeroll, J. Development of a model for experimental data treatment of diffusion and activation limited polarization curves for magnesium and steel alloys. Journal of the Electrochemical Society 2017, 164(11), E3576-E3582.
Payne, N.A.*; Stephens, L.I*.; Mauzeroll, J. The Application of Scanning Electrochemical Microscopy to Corrosion Research. Corrosion 2017, 73(7), 759-780.
* Co-first authors.
conference oral Presentations (presenter underlined)
Stephens, L.I.; Payne, N.A.; Skaanvik, S.A.; Polcari, D.; Geissler, M.; Mauzeroll, J. (2019) Image processing techniques in scanning electrochemical microscopy: proof of concept and software development. 9th Electrochemical Society Montreal Student Symposium, Universite de Quebec a Montreal, Montreal, Canada, May 10.
Stephens, L.I. (2019) Textual analysis in scientific writing. Electrochemistry Workshop, Montreal, QC, Feb. 11.
Stephens, L.I. Mauzeroll, J. (2018) Quantitative predictions of the altered resolution of SECM induced by multifunctional microelectrodes. GRS in Electrochemistry, Ventura, CA, Jan. 6-7.
Perry, S.C., Gateman, S., Stephens, L.; Mauzeroll, J. (2017) Pourbaix Diagrams As a Root for the Simulation of Polarization Curves for Corroding Metal Surfaces, 232nd Electrochemical Society Meeting, National Harbor, MD, USA, Oct 4.
Stephens, L; Perry, S.C.; Gateman, S.M. Mauzeroll, J. Potentiodynamic Polarisation Curves (PDP): To Fit or Not to Fit. 100th Canadian Chemistry Conference and Exhibition, Toronto, Canada, May 30.
Stephens, L., Gateman, S., Perry, S.C.; Mauzeroll, J. (2017) Finite element simulations of uniform and localized corrosion processes, 7th Electrochemical Society Montreal Student Symposium, McGill University, Montreal, Canada, May 26. (Winner of best oral presentation.)
Stephens, L.I. (2019) Textual analysis in scientific writing. Electrochemistry Workshop, Montreal, QC, Feb. 11.
Stephens, L.I. Mauzeroll, J. (2018) Quantitative predictions of the altered resolution of SECM induced by multifunctional microelectrodes. GRS in Electrochemistry, Ventura, CA, Jan. 6-7.
Perry, S.C., Gateman, S., Stephens, L.; Mauzeroll, J. (2017) Pourbaix Diagrams As a Root for the Simulation of Polarization Curves for Corroding Metal Surfaces, 232nd Electrochemical Society Meeting, National Harbor, MD, USA, Oct 4.
Stephens, L; Perry, S.C.; Gateman, S.M. Mauzeroll, J. Potentiodynamic Polarisation Curves (PDP): To Fit or Not to Fit. 100th Canadian Chemistry Conference and Exhibition, Toronto, Canada, May 30.
Stephens, L., Gateman, S., Perry, S.C.; Mauzeroll, J. (2017) Finite element simulations of uniform and localized corrosion processes, 7th Electrochemical Society Montreal Student Symposium, McGill University, Montreal, Canada, May 26. (Winner of best oral presentation.)
Poster Presentations
L.I. Stephens, J. Mauzeroll. (2018). Quantitative predictions of the altered resolution of SECM induced by multifunctional microelectrodes. GRC in Electrochemistry, Ventura, CA, Jan. 7-11.
L. Stephens, J. Mauzeroll. (2015). SECM investigations of biological systems and material properties. 8th Annual Symposium of the CQMF, Drummondville, Quebec, Canada, November 12-13
L. Stephens, J. Mauzeroll. (2015). SECM investigations of biological systems and material properties. 8th Annual Symposium of the CQMF, Drummondville, Quebec, Canada, November 12-13
Honors/awards
PGSS Travel Award, McGill University, 2019 (declined)
NACE Foundation of Canada Graduate Student Excellence Award, McGill University, 2018-2019
FRQNT B2X, McGill University, 2018 (declined)
NSERC CGS-D, McGill University, 2018 - Present
NACE Foundation of Canada Graduate Student Excellent Award, McGill University, 2018-2019
Sterry Hunt Award, McGill University, 2015-2016
NSERC PGS-M, McGill University, 2016-2017
Medal in Chemistry, Queen's University, 2015
Canadian Society for Chemistry Silver Medal, Queen's University, 2014-2015
R.T. Mohan Undergraduate Scholarship in Chemistry, Queen's University, 2014-2015
Northeastern Chemical Association Scholarship, Queen's University, 2014-2015
Solomon Lieff Prize in Physical Chemistry, Queen's University, 2013-2014
NACE Foundation of Canada Graduate Student Excellence Award, McGill University, 2018-2019
FRQNT B2X, McGill University, 2018 (declined)
NSERC CGS-D, McGill University, 2018 - Present
NACE Foundation of Canada Graduate Student Excellent Award, McGill University, 2018-2019
Sterry Hunt Award, McGill University, 2015-2016
NSERC PGS-M, McGill University, 2016-2017
Medal in Chemistry, Queen's University, 2015
Canadian Society for Chemistry Silver Medal, Queen's University, 2014-2015
R.T. Mohan Undergraduate Scholarship in Chemistry, Queen's University, 2014-2015
Northeastern Chemical Association Scholarship, Queen's University, 2014-2015
Solomon Lieff Prize in Physical Chemistry, Queen's University, 2013-2014