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PROFILE

I obtained an MChem in Chemistry with Industrial Training in 2010, and joined WEIG in the same year. I spent one year working for GlaxoSmithKline, in the Analytical Chemistry department, on a project investigating the use of charged aerosol detection for universal quantitative detection, without the need for analyte-specific calibrations. My final year master's project was spent investigating room temperature ionic liquids as electrolytes for carbon-based electrodes.

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PHD RESEARCH

 

My PhD research was focussed on understanding electrochemical reactions on sp² carbon materials, using high resolution electrochemical imaging techniques to visualize the reactions on such materials. To this end, I utilized a wide range of imaging techniques, for example intermittent contact-scanning electrochemical micoscopy (IC-SECM), developed by the group at Warwick, and scanning ion conductance microscopy (SICM).

The work has developed IC-SECM by pushing the resolution of the technique to the nanoscale, and introducing a hopping-mode scan, which provides a much greater volume of information as compared to routine SECM technques.

My joint supervisors were Prof. Patrick R. Unwin and Prof. Julie V. MacPherson.

This work was funded by the EPSRC (Engineering and Physical Sciences Research Council).

 

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TECHNIQUES

Separation and Analytical Detection

Langmuir Films

Electrochemical Methods: Voltammetry, chronoamperometry

Electrochemical Scanning Probe Microscopy

• Scanning Electrochemical Microscopy (SECM).
• Intermittent Contact (IC)-SECM.

Other Microscopies

• Atomic Force Microsopy (AFM).
• Scanning Electron Microscopy (SEM).
• Focussed Ion Beam (FIB)-SEM.
• Transmission Electron Microscopy (TEM).

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PUBLICATIONS

• Quantitative Localized Proton-Promoted Dissolution Kinetics of Calcite using Scanning Electrochemical Microscopy (SECM)
  C-A. McGeouch, M. Peruffo, M. A. Edwards, L. Dexter, R. A. Lazenby, M. M. Mbogoro, K. M^cKelvey and P. R. Unwin, J. Phys. Chem. C, 2012, 116, 14892-14899.
• Hopping Intermittent Contact-Scanning Electrochemical Microscopy (HIC-SECM): Visualizing Interfacial Reactions and Fluxes from Surfaces to Bulk Solution
  R. A. Lazenby, K. M^cKelvey and P. R. Unwin, Anal. Chem., 2013, 85, 2937-2944.
• Nanoscale Intermittent Contact-Scanning Electrochemical Microscopy
  R. A. Lazenby, K. M^cKelvey, M. Peruffo, M. Baghdadi and P. R. Unwin, J. Solid State Electrochem., 2013, 17, 2979-2987.
• Nucleation, aggregative growth and detachment of metal nanoparticles during electrodeposition at electrode surfaces
  S. C. S. Lai, R. A. Lazenby, P. M. Kirkman and P. R. Unwin, Chem. Sci., 2015, 6, 1126-1138.
• Further Article
  S. Isiklia, R. A. Lazenby, A. G. Güell, M. Leceac, M. Ribagordac, M. C. Carreñoc, R. Díaza, R. B. Channon and P. R. Unwin, - in preparation.
• Further articles in preparation.

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CONFERENCES

•  Midlands Electrochemistry Group Meeting

  - University of Nottingham, April 2013.

Presented a talk entitled, "New Developments in Intermittent Contact-Scanning Electrochemical Microscopy: Nanoscale Imaging and Hopping Mode."

• 7th Workshop on Scanning Electrochemical Microscopy

  - Israel, February 2013.

Presented a talk entitled, "New Developments in Intermittent Contact-Scanning Electrochemical Microscopy: Nanoscale Imaging and Hopping Mode."

• Midlands Electrochemistry Group Meeting

  - University of Birmingham, June 2012.

Presented a poster entitled, "4D Intermittent Contact-Scanning Electrochemical Microscopy: Visualizing Interfacial Reactions from Surfaces to Bulk Solution."

• Electrochemistry Conference 2012 (Zing Conferences)

  - Lanzarote, February 2012.

Presented a poster entitled, "Nanoscale Intermittent-Contact Scanning Electrochemical Microscopy."

• Atomic and Molecular Interactions on Graphene and Graphene Oxide

  - University of Warwick, December 2011.

  
  

• Electrochem 2011

  - University of Bath, September 2011.

Presented a poster entitled, "Intermittent Contact-Scanning Electrochemical Microscopy (IC-SECM): Towards Simultaneous Nanoscale Topographical and Electrchemical Imaging."

• Midlands Electrochemistry Group Meeting

  - University of Warwick, June 2011.

  
  

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TEACHING / DEMONSTRATING

2014 - Workshops for third year undergraduate (UG) course: CH3F1 - Advanced Physical Chemistry and Laboratory.

2014 - Outreach activities with President Kennedy school, which involved allowing Year 12 students to participate and contribute to a PhD research project, over a number of weeks.

2012 - 2013 - 6 week project for 11-14 year olds at The Grange Extended Learning Centre, as part of Chemistry Outreach. The full report for this project is available here, and we were recently featured in the Coventry Telegraph.

2013, 2012 & 2011 - Helped host an event (demonstrations of our equipment for young scientists aged 17-21) at Warwick for the London International Youth Science Forum (LIYSF). See our news article here.

2013, 2012 & 2011 - Workshops for second year UG course: CH249 - Foundations of Electrochemistry and Properties of Solutions.

2012 & 2011 - Demonstrating for third year UG laboratory course: CH3C4 - Physical Lab.

2011 & 2010 - Workshops for third year UG course: CH3A9 - Surface and Interfacial Chemistry.

 

 

Robert Lazenby

R dot A dot Lazenby at warwick dot ac dot uk

Office : C116

Tel : +44 (0) 2476 151816

Chemistry Department

University of Warwick
Gibbet Hill Road
Coventry
CV4 7AL
United Kingdom