Department of Chemistry and Materials Science

Physical Electrochemistry and Electrochemical Physics

The research group of Physical Electrochemistry and Electrochemical Physics (PhysElectrochemPhys) focuses on understanding how charge transfer takes place across solid-liquid interfaces, and within solid materials. Our current projects aim at developing next generation batteries for large scale energy storage.
PhysElectrochemPhys
PhysElectrochemPhys

PhysElectrochemPhys group is led by me, Dr. Pekka Peljo, since I started as Academy Research Fellow at Aalto University in September 2018.

We have an open position for a PhD student (see below).

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Research projects

The current research projects in the PhysElectrochemPhys group focus on development of next generation batteries, and on understanding how these batteries work.

 

Development and in operando characterization of solid redox boosters for high energy density redox flow batteries

This project funded by Academy of Finland focuses on demonstrating the concept of solid boosters for flow batteries, as well as developing tools to characterize charge transfer with the solid boosters. 

Bioinspired organic redox flow batteries for sustainable and safe energy storage

BioFlow-project develops safe and sustainable flow batteries for large-scale energy storage, based on bio-inspired organic molecules, in collaboration with Prof. Petri Pihko, University of Jyväskylä. This project is funded by Academy of Finland.

H2020-LC-BAT-3 CompBat: Computer aided desing for next generation flow batteries

PhysElectrochemPhys is coordinating this EU-project. CompBat will focus on developing tools for discovery of new prospective candidates for next generation flow batteries, based on machine learning assisted high-throughput screening. Density functional theory calculations will be used to obtain data on solubilities and redox potentials of different molecules, and machine learning methods are used to develop high-throughput screening tools based on the obtained data. The results of the high-throughput screening are validated with experimental results. Target molecules will be bio-inspired organic compounds, as well as derivatives of the redox active specialty chemical already manufactured in bulk quantities. Stability and reversibility of the molecules will also be investigated by DFT calculation, experimental investigations and machine learning methods, for a selected group of interesting molecules.

Numerical modelling of flow battery systems will be performed with finite element method, and with more general zero-dimensional models based on mass-transfer coefficients. The models will be verified experimentally, and the modelling will generate a data-set to allow prediction of the flow battery cell performance based on properties of the prospective candidates obtained from high-throughput screening. This data is used then to predict the flow battery system performance from the stack level modelling. Freely available cost estimation tools are then adapted to estimate the system performance also in terms of cost. This approach will allow prediction of the battery performance from molecular structure to cost.

Furthermore, the concept of using solid boosters to enhance the battery capacity will be investigated by developing models to simulate the performance of such a systems, and validating the models experimentally with the candidates already reported in the literature.

Partners: Dr. Imre Papai (Természettudományi Kutatóközpont, Hungary), Prof. Kari Laasonen (Aalto University, Finland), Prof. Daniel Brandell (Uppsala Universitet, Sweden), Prof. Umberto Desideri (Universita de Pisa, Italy), Prof. Keith Stevenson (Skolkova Institute of Science and Technology, Russia) and Prof. Petri Pihko (University of Jyväskylä, Finland)

Jenny and Antti Wihuri Foundation homing grant

Jenny and Antti Wihuri Foundation awarded us a homing grant in 2019 to help to improve the research infrastructure in our lab. We will use this grant to improve our flow battery testing systems, and to build a scanning electrochemical microscope.

Digital drive for revolutionizing materials discovery for the next generation energy storage

This  project will develop digital technology enablers based on advanced computational modelling and machine learning to screen prospective molecular candidates to realize scalable, inexpensive and sustainable energy storage based on redox flow batteries, focusing on metal compexes. It is funded by the Future makers program of Technology Industries of Finland Centennial Foundation and Jane and Aatos Erkko Foundation. The collaborators include Prof. Kari Laasonen (Aalto University) and Prof. Petri Pihko (University of Jyväskylä).

hotoproduction of hydrogen in biphasic systems with electron donor recycling (PHOTOH2)

We are starting again some work on photoproduction of hydrogen at liquid-liquid interfaces! We will collaborate with Prof. Marcin Opallo (Institute of Physical Chemistry, Polish Academy of Sciences), and Prof. Hubert Girault (EPFL), with our part focusing on development of photoelectrochemical flow cells for such systems. This project is funded from the  Solar-Driven Chemistry  network initiated by the German Research Foundation - Deutsche Forschungsgemeinschaft (DFG). From Finland the funding organization is Academy of Finland.

Open positions

Occasionally we have some open positions that will be advertised also here. Students from Aalto are also encouraged to get touch regarding M.Sc. thesis and internship positions. Open applications from other candidates are also welcomed.

Past members

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Physical Chemistry and Electrochemistry, Department of Chemistry and Materials Science
Publishing year: 2019 Physical Chemistry Chemical Physics
Physical Chemistry and Electrochemistry, Department of Chemistry and Materials Science
Publishing year: 2019 Current Opinion in Electrochemistry
Department of Chemistry and Materials Science, Physical Chemistry and Electrochemistry
Publishing year: 2019 Chemistry (Weinheim an der Bergstrasse, Germany)
Department of Chemistry and Materials Science, Physical Chemistry and Electrochemistry
Publishing year: 2019 Electrochimica Acta
Not published at Aalto University
Publishing year: 2018 Journal of Electroanalytical Chemistry
Not published at Aalto University
Publishing year: 2018 Journal of Physical Chemistry C
Not published at Aalto University
Publishing year: 2018 Angewandte Chemie - International Edition
Not published at Aalto University
Publishing year: 2018 Energy and Environmental Science
Not published at Aalto University
Publishing year: 2018 Current Opinion in Electrochemistry
Not published at Aalto University
Publishing year: 2018 Chemical Reviews
More information on our research in the Research database.
Research database
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