Helen Freeman


Dr Helen Freeman is a Postdoctoral Research Fellow at the University of Leeds.  After studying physics at the University of Manchester she completed a Masters in environmental energy and engineering before moving to Leeds to do her PhD in radiation damage of nuclear graphite.

In 2016 Helen moved to Berlin to work at the German research centre for geosciences (GFZ), returning to the UK in September 2018 to join the Crystallisation in the Real World EPSRC Programme Grant.  Since 2011, she has used transmission electron microscopes (TEMs) to analyse a range of samples, from radioactive material in nuclear reactors to environmental remediating minerals and hydrated clays.  She has a particular interest in analysing dynamic processes using in-situ (S)TEM, with her main focus at the University of Leeds being in liquid-cell and cryo TEM.

Research interests

Materials characterization using analytical transmission electron microscopy:

  • Crystallisation of carbonates/sulphates/phosphates
  • Pollutant remediation using iron-bearing minerals
  • Nanostructural characterization of carbon-based materials
  • in-situ TEM (liquid cell, heating, cryo)




  • BSc Physics, University of Manchester
  • MSc Sustainable and Environmental Technology, University of Manchester
  • Space Studies Programme, International Space University
  • PhD Nuclear Engineering, University of Leeds

Professional memberships

  • IOP
  • RMS
  • IOM3

Student education

Supervise first year chemical engineering design projects

Research groups and institutes

  • Materials Characterisation
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