The PhD School of the Swiss Nanoscience Institute at the University of Basel offers a PhD position on “Neutron nanomediators for non-invasive temperature mapping of fuel cells”.
characterization methods are of high importance to elucidate the complex physical processes occurring inside fuel cells. In particular, the distribution of temperature across the different layers of the cell plays an important role in water management and in durability. To date, only invasive techniques (e.g. insertion of thermocouples whose dimensions are similar to the layer thickness) have been reported for this measurement. In this project, we will explore the use of magnetic nanoparticles as mediators for the temperature measurement.
A polarized neutron beam such as the one provided at the BOA beam line of the Paul Scherrer Institute (PSI) will be depolarized by ferromagnetic nanoparticles due to the randomly oriented magnetic field they produce. When heated above their Curie temperature, these particles will become paramagnetic and the beam will stay polarized. Using a spin analyser and an imaging detector, we will therefore obtain an image of the temperature distribution in a non-invasive way, thanks to the ability of neutron to penetrate a large variety of materials used in fuel cell design.
The scope of this PhD thesis will include the synthesis of nano-particles, the ex-situ
characterization of their physical and magnetic properties, their inclusion into fuel cell materials and the characterization of their suitability for the temperature measurement using a polarized neutron beam. Additionally, the inclusion of material into real operating fuel cells will be conducted in collaboration with other students and researchers. This PhD thesis will be conducted as a collaboration between the Laboratory for Neutron Scattering and Imaging (LNS, PSI) and the Electrochemistry Laboratory (LEC, PSI) at the Paul Scherrer Institute in Villigen, Switzerland.
For additional information, please contact one of the two PIs, Dr. Pierre Boillat (firstname.lastname@example.org) or Prof. Michel Kenzelmann (email@example.com)
To apply online before 31 December 2019 please visit:
Since 2012, the Swiss Nanoscience Institute (SNI) at the University of Basel funds nanoscience research in an interdisciplinary PhD program. Graduate students from all over the world work on a diverse range of projects for example on quantum computing, spintronics, molecular electronics, graphene, quantum sensing, nanocontainers for medical applications, solar cells, single-cell proteomics, nanofluidic devices, and many more.
The SNI offers a broad interdisciplinary education with additional tailormade courses to improve personal development and skills such as scientific writing, communication, and presentation techniques. The PhD programme includes regular SNI conferences, such as the SNI Annual Event and a winter school. These introduce students to the interdisciplinary scientific community and offer ideal opportunities for scientific and personal exchange, including partners from industry.
We are looking for excellent and motivated graduate students interested in this topic and curious about other fields in the natural sciences.