Dr Jennifer Johnstone-Hack

School of Chemical, Materials and Biological Engineering

Lecturer in Sustainable Materials

Profile photo of Jennifer Hack
Profile picture of Profile photo of Jennifer Hack
j.johnstone-hack@sheffield.ac.uk

Full contact details

Dr Jennifer Johnstone-Hack
School of Chemical, Materials and Biological Engineering
Sir Robert Hadfield Building
Mappin Street
Sheffield
S1 3JD
Profile

Jennifer joined the department in 2023 as a Royal Academy of Engineering Research Fellow. She completed her PhD at University College London in 2021 working on fuel cell characterisation. After several years working on battery technologies, first through an EPSRC Doctoral Prize Fellowship studying zinc-air batteries, followed by a Project Lead role on the Faraday Institution's LiSTAR project, Jennifer joined the department of Materials Science and Engineering to focus on hydrogen research. Jennifer's research interests surround the complex relationship between materials morphology, performance and degradation in electrochemical devices. Her fellowship will use 4D imaging methods, including X-ray and neutron CT, to study morphology evolution in electrolysers and will translate the insights gained into designing new structures for various electrolyser components, including the catalyst layer and porous transport layer.

Research interests
  • 4D imaging methods, including X-ray and neutron CT, in both the research laboratory and at national facilities.
  • Study of failure mechanisms in electrochemical devices, in particular electrolysers and fuel cells.
  • Understanding how materials morphology influences device performance and failure.
  • Proposing and designing new porous media architectures for improved performance and/or durability properties.
Publications

Journal articles

Conference proceedings papers

  • Hack J, Meyer Q, Iacoviello F, Cullen P, Mansor N, Shearing P, Brandon N & Brett D (2017) A MULTI-SCALE APPROACH TO POLYMER ELECTROLYTE FUEL CELL CHARACTERISATION. EFC 2017 - Proceedings of the 7th European Fuel Cell Piero Lunghi Conference (pp 235-236) RIS download Bibtex download