Department of Chemistry and Materials Science

Electrochemical Energy Conversion

The research group investigates and develops materials and devices for electrochemical energy conversion and storage. Meeting the production and consumption of electrical energy is one of the major societal and technological challenges when increasing portion of the electricity production is based on intermittent renewable sources, such as solar and wind power. Moreover, increase in usage of off-grid portable devices and electrifying traffic increase the need for electrochemical energy conversion and storage devices.
Litium ion batteries

Our research areas:

  1. Electrochemical energy conversion materials and devices; in particluar electrocatalysts and electrode materials for such applications as polymer electrolyte fuel cells and electrolyzers, lithium ion batteries and supercapacitors
  2. Reduction of the utilization of non-earth-abundant-elements without sacrificing the electrochemical device performance
  3. Understand structure – activity – durability interrelations of the active energy conversion materials. Hence, our work covers material synthesis, material structural and electrochemical characterization and integration in laboratory-scale devices

Electrochemical energy storage can be one solution to the increasing of the need for electrochemical energy conversion and storage devices .Thus, the Electrochemical Energy Conversion research group investigates and develops materials and devices for these applications. Our aim is to understand functioning of these to improve the existing ones and to develop alternative solutions.

Our research is focused on investigating polymer electrolyte fuel cells (PEFC) and electrolysers as well as lithium ion batteries and supercapacitors and covers synthesis, characterization and integration of new materials. Alongside functionality of the materials and devices, we are interested in their durability and degradation mechanisms as well as optimization of above mentioned technologies for their applications.

Research highlights:

Responsible (or sustainable) energy conversion and storage is one of the key issues for large-scale utilization of intermittent renewable energy sources. We want to foster and contribute this energy transition by developing those critical technologies:

  • By developing materials for responsible energy conversion and storage
  • By reducing or replacing critical raw materials in electrochemical energy conversion applications

 

Our highlight publications:

  • Development of novel nanomaterials for catalysis through a novel CVD synthesis method for the growth of carbon encapsulated transition metal nanoparticles (CEMNs) decorated on carbon nanotubes (CNTs). Read more here
  • Novel electrochemical modification of transition metal nanoparticles, and carbon nanomaterials for synthesizing active catalysts for OER. Read more here
  • Novel synthesis of pseudo atomic-scale Pt catalyst materials decorated on carbon nanotubes for catalytic applications. Read more here

The CREATE Project

The ever-expanding demand for renewable energy spotlights electrochemical prowess. Feasible technologies for generating and storing green power have already entered the market. However, they rely heavily on critical raw materials such as cobalt in batteries and scarce platinum-group metals (PGM) in electrochemical converters, which inhibits large-scale deployment in the long term.

This project unites several global contributors in the field, sharing the same target: developing PGM-free and ultra-low-platinum MEAs that will comprise the hearts of electrolysers and fuel cells. (While the former device is designed to store intermittent solar and wind energy in hydrogen gas, the latter will release the energy by oxidizing the gas whenever needed.) Aalto contributes strongly to both the synthesis and the characterization of the desired electrocatalysts for the pertinent electrochemical reactions.

Read more about CREATE project

The ELCOREL project

The aim of the project is to train young researchers in all scientific and technological aspects of the storage of renewable electricity into fuels and chemicals.  The scientific aim is to develop and upscale novel catalysts meeting specific activity and selectivity targets for oxygen evolution and CO2 reduction. The involvement of two industrial partners ensures rapid application of the fundamental science in electrochemical technology.

Read more about ELCOREL project

Past projects:

The research group:

Tanja Kallio
Professor Tanja Kallio

Associate Professor Tanja Kallio, research group leader:

My professorship is Physical Chemistry and Electrochemistry and my research focuses on electrochemical energy conversion materials and devices. For widespread adoption of renewable, intermittent energy technologies, various efficient and sustainable electrochemical energy conversion and storage alternatives are needed. 

In my group, we contribute to this effort by investigating and developing in particularly electrocatalysts and electrode materials for such applications as polymer electrolyte fuel cells and electrolyzers, lithium ion batteries and supercapacitors.

The core theme is reduction of the utilization of non-earth-abundant-elements without sacrificing the electrochemical device performance. As an alternative approach, strategies to increase the lifetime of the critical active materials is studied.

To achieve our goals, we aim to understand structure – activity – durability interrelations of the active energy conversion materials. Hence, our work covers material synthesis, material structural and electrochemical characterization and integration in laboratory-scale devices. This includes also post-mortem analysis of the active materials to investigate degradation mechanism. To obtain fundamental understanding on complex phenomena, we carry out these investigations in close collaboration with groups specialized in modelling and advanced structural characterization technologies.

Research group members

Olli Sorsa

Olli Sorsa

Chemistry and Materials
Doctoral candidate
Tanja Kallio

Tanja Kallio

Chemistry and Materials
Professori (Associate professor)
Syed Ali

Syed Ali

Chemistry and Materials
Tohtorikoulutettava
Md Hossain

Md Hossain

Chemistry and Materials
Tohtorikoulutettava

Zahra Ahaliabadeh

Chemistry and Materials
Doctoral candidate
Ekaterina Fedorovskaya

Ekaterina Fedorovskaya

Chemistry and Materials
Postdoctoral researcher

Nana Han

Postdoctoral researcher
Group picture_Electrochemical Energy Conversion
The EEC research group

Latest publications

Quasi-2D Co3O4 nanoflakes as an efficient gas sensor

Fedor S. Fedorov, Maksim A. Solomatin, Margitta Uhlemann, Steffen Oswald, Dmitry A. Kolosov, Anatolii Morozov, Alexey S. Varezhnikov, Maksim A. Ivanov, Artem K. Grebenko, Martin Sommer, Olga E. Glukhova, Albert G. Nasibulin, Victor V. Sysoev 2020 Journal of Materials Chemistry A

Electrochemical properties of nitrogen and oxygen doped reduced graphene oxide

Sean J. Hartmann, Anna A. Iurchenkova, Tanja Kallio, Ekaterina O. Fedorovskaya 2020 Energies

Electrochemical syngas production from CO2 and water with CNT supported ZnO catalysts

Ida Hjorth, Yalan Wang, Yahao Li, Marthe Emelie Melandsø Buan, Magnus Nord, Magnus Rønning, Jia Yang, De Chen 2020 Catalysis Today

Fine-tuning of spark-discharge aerosol CVD reactor for single-walled carbon nanotube growth

Vsevolod Ya Iakovlev, Dmitry V. Krasnikov, Eldar M. Khabushev, Alena A. Alekseeva, Artem K. Grebenko, Alexey P. Tsapenko, Boris Yu Zabelich, Julia V. Kolodiazhnaia, Albert G. Nasibulin 2020 Chemical Engineering Journal

Conjugation with carbon nanotubes improves the performance of mesoporous silicon as Li-ion battery anode

Timo Ikonen, Nathiya Kalidas, Katja Lahtinen, Tommi Isoniemi, J. Jussi Toppari, Ester Vázquez, M. Antonia Herrero-Chamorro, José Luis G. Fierro, Tanja Kallio, Vesa Pekka Lehto 2020 Scientific Reports

MWCNT buckypaper/polypyrrole nanocomposites for supercapasitor application

A. A. Iurchenkova, E. O. Fedorovskaya, I. P. Asanov, V. E. Arkhipov, K. M. Popov, K. I. Baskakova, A. V. Okotrub 2020 Electrochimica Acta

Carbon corrosion properties and performance of multi-walled carbon nanotube support with and without nitrogen-functionalization in fuel cell electrodes

Petri Kanninen, Björn Eriksson, Fatemeh Davodi, Marthe Emelie Melandsø Buan, Olli Sorsa, Tanja Kallio, Rakel Wreland Lindström 2020 Electrochimica Acta

Structure-dependent performance of single-walled carbon nanotube films in transparent and conductive applications

Eldar M. Khabushev, Dmitry V. Krasnikov, Julia V. Kolodiazhnaia, Anton V. Bubis, Albert G. Nasibulin 2020 Carbon

The Ti wire functionalized with inherent TiO2 nanotubes by anodization as one-electrode gas sensor

Andrey V. Lashkov, Fedor S. Fedorov, Mikhail Yu Vasilkov, Alexey V. Kochetkov, Ilia V. Belyaev, Ilia A. Plugin, Alexey S. Varezhnikov, Anastasia N. Filipenko, Stepan A. Romanov, Albert G. Nasibulin, Ghenadii Korotcenkov, Victor V. Sysoev 2020 Sensors and Actuators, B: Chemical

Active IrO2 and NiO thin films prepared by atomic layer deposition for oxygen evolution reaction

D. J.Donn Matienzo, Daniel Settipani, Emanuele Instuli, Tanja Kallio 2020 CATALYSTS
More information on our research in the Research database.
Research database
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