Home | Jasna Jankovic Research Group

Phone:	1 860-486-6496
E-mail:	jasna.jankovic@uconn.edu
Address:	Department of Materials Science & Engineering 25 King Hill Road, Unit 3136 University of Connecticut

STEM/EDX imaging of the catalyst layer
STEM/EDX imaging of the catalyst layer (higher mag.)
STEM/EDX imaging of the catalyst layer (higher mag.)
Ionomer staining
Catalyst powder 3D imaging, modeling and quantification(HSAC)
Catalyst powder 3D imaging, modeling and quantification(GC)
Catalyst layer 3D imaging, modeling and quantification

Andres Godoy, Martin Birnbach, and Mathew Maramo were recognized at the 2024 MSE Banquet at UConn! https://mse.engr.uconn.edu/mse-banquet-2024-honoring-achievement-and-community-spirit.php
Dr. Jasna Jankovic has been named the 2024 Distinguished Engineering Educator Award at UConn! https://mse.engr.uconn.edu/jasna-jankovic-named-2024-distinguished-engineering-educator.php
Dr. Jasna Jankovic has recently received two grants with the DOE. One grant is led by Plug Power and the other is led by Mott Corporation and she will be UConn’s PI on both.
JJ’s Group visited MIT on 3/15 where they connected with Yang Shao-Horn’s team. They presented some of their current research and connected with other students and faculty in the discipline. They were able to tour their labs and engage in a scientific exchange, expanding in collaboration.
Andres Godoy published his article ” Understanding the Effects of Heat Treatment Temperature and Atmosphere on Platinum Nanoparticle Sintering Processes on Different Engineered Catalyst Supports (ECS) for Fuel Cell Applications” in the newest issue of ACS Applied Energy Materials and had his TEM images featured on the ACS Cover. https://pubs.acs.org/doi/10.1021/acsaem.3c02196
Dr. Jasna Jankovic has been awarded the NSF CAREER award for the project titled: “CAREER: Understanding degradation mechanisms in sustainable energy electrochemical systems using advanced characterization approaches.” Award period: 09/01/2021 – 08/31/26.
Dr. Jasna Jankovic – Our STEAM Tree project was featured as part of the National Science Foundation-sponsored Convergence Accelerator Conference for Food Security in Extreme Environments and Food Deserts on 19-21 May 2021. Check out our “Lightning Talk”, Video, and UConn’s STEAM Team: Solar Trees and the Power of Community.
Dr. Jankovic’s students did a fantastic job presenting at the (virtual) World Fuel Cell Conference in Montreal.
Congratulations to Mariah for winning the 2nd place in the 3MT Competition!
Check out their presentations.
Amir Soleymani – MSE Graduate Student Tackles the Future of Energy Innovation
Andres Godoy – MSE Graduate Student’s Research Aids Green Technology Revolution
Sara Pedram – MSE Graduate Student Researches Alternative Energy Sources

A number of advanced structural characterization techniques have been developed in Prof. Jankovic team.
Techniques are applicable to fuel cells, electrolyzers, batteries (with some further development).
Advanced quantification of STEM-EDX maps was developed to provide important parameters in BOL and EOL samples: Pt loading, I/C ratio, CL porosity, OER catalyst agglomerate size distribution, Pt and Ionomer profiles etc.
The technique provides important information about degradation effects on catalyst laters
Capability in ionomer imaging in catalyst inks and layers (2D and 3D)
3D imaging, reconstruction and simulation of catalyst layers, MPL and GDLs have been demonstrated
A number of correlations with performance of CL properties has been established
Great potential of using these techniques to provide understanding of FC performance and degradation and input into mathematical models
Potential for improved CL design and choice of materials

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Jasna Jankovic Research Group

PROF. JASNA JANKOVIC

Research Interests

Advanced Imaging and Spectroscopy Techniques, Nanomaterials for Clean Energy Applications, Fuel Cells, Batteries, Structure-Property-Performance Correlation

JJ Group News

Multi-scale imaging and simulation

The deepest secrets of fuel cell catalyst layers in 3D

Catalyst layer 3D electron tomography

Catalyst powder 3D electron tomography

Micro-CT of a fuel cell – beginning of life

Micro-CT of a fuel cell – end of life

Faculty/Staff Daily Digest