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

Our research areas:

  1. Stationary energy storage in redox flow batteries

  2. Understanding charge transfer at interfaces

  3. Energy storage and conversion

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 (Universitá di Pisa, Italy), Prof. Keith Stevenson (Skolkova Institute of Science and Technology, Russia) and Prof. Petri Pihko (University of Jyväskylä, Finland)

Read more

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).

Photoproduction 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.

Jukka Seppälä, Pekka Peljo, Kristiina Kruus
Team leader Dr. Pekka Peljo (mid.) with Head of Dept. Jukka Seppälä and CHEM Dean Kristiina Kruus

Our research group:

 

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

See my list of publications here

PhysElectrochemPhys team:

Open positions:

This is what we do, what projects we have, what we have done and who we are. If you want more info, or would like to collaborate or join us, let us know.

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 welcome.

 

Doctoral candidate fixed-term position

We are looking for a PhD student to develop metal complexes for aqueous flow batteries.

Read more and apply here

Follow us

Related content:

Pekka Peljo receives funding from the Academy of Finland

Peljo's research is related to sustainable energy production through hydrogen.

Jukka Seppälä, Pekka Peljo, Kristiina Kruus

Aalto researchers’ bold initiatives receive more than €2 million in funding

The areas covered by the four research projects include the development of thermal energy storage and mobile magnetic resonance imaging technology.

Energian varastointi

Latest publications:

Structure and reactivity of the polarised liquid–liquid interface

Gregoire Gschwend, Astrid J. Olaya, Pekka Peljo, Hubert Girault 2020 Current Opinion in Electrochemistry

Mesoporous Single-Atom-Doped Graphene-Carbon Nanotube Hybrid

Mohammad Tavakkoli, Emmanuel Flahaut, Pekka Peljo, Jani Sainio, Fatemeh Davodi, Egor V. Lobiak, Kimmo Mustonen, Esko I. Kauppinen 2020 ACS Catalysis

Thermally regenerative copper nanoslurry flow battery for heat-to-power conversion with low-grade thermal energy

Sunny Maye, Hubert H. Girault, Pekka Peljo 2020 Energy and Environmental Science

Vanadium-Manganese Redox Flow Battery : Study of Mn-III Disproportionation in the Presence of Other Metallic Ions

Danick Reynard, Sunny Maye, Pekka Peljo, Vimanshu Chanda, Hubert H. Girault, Solene Gentil 2020 CHEMISTRY: A EUROPEAN JOURNAL

Membraneless energy conversion and storage using immiscible electrolyte solutions

Andrés F. Molina-Osorio, Alonso Gamero-Quijano, Pekka Peljo, Micheál D. Scanlon 2020 Current Opinion in Electrochemistry

Closed Bipolar Electrochemistry in a Four-Electrode Configuration

Alonso Gamero-Quijano, Andrés Molina-Osorio, Pekka Peljo, Michéal Scanlon 2019 Physical Chemistry Chemical Physics

Mechanistic Study on the Photogeneration of Hydrogen by Decamethylruthenocene

Lucie Rivier, Pekka Peljo, Sunny Maye, Manuel A. Méndez, Heron Vrubel, Laurent A.C. Vannay, Clémence Corminboeuf, Micheál D. Scanlon, Hubert H. Girault 2019 Chemistry (Weinheim an der Bergstrasse, Germany)

Solid electrochemical energy storage for aqueous redox flow batteries

Elena Zanzola, Solène Gentil, Grégoire Gschwend, Danick Reynard, Evgeny Smirnov, C. R. Dennison, Hubert H. Girault, Pekka Peljo 2019 Electrochimica Acta

Simulations employing finite element method at liquid|liquid interfaces

Pekka Peljo, Micheál D. Scanlon, T. Jane Stockmann 2018 Current Opinion in Electrochemistry

Solvent effect in photo-ionic cells

Elena Vladimirova, Pekka Peljo, Hubert H. Girault 2018 Journal of Electroanalytical Chemistry

Gold Nanofilms at Liquid-Liquid Interfaces

Micheál D. Scanlon, Evgeny Smirnov, T. Jane Stockmann, Pekka Peljo 2018 Chemical Reviews

Gold Raspberry-Like Colloidosomes Prepared at the Water-Nitromethane Interface

Evgeny Smirnov, Pekka Peljo, Hubert H. Girault 2018 Langmuir

Electrochemical potential window of battery electrolytes

Pekka Peljo, Hubert H. Girault 2018 Energy and Environmental Science

Effect of Chaotropes on the Transfer of Ions and Dyes across the Liquid-Liquid Interface

Pekka Peljo, Elena Vladimirova, Evgeny Smirnov, Grégoire Gschwend, Lucie Rivier, Hubert H. Girault 2018 Journal of Physical Chemistry C

Semi-analytical modelling of linear scan voltammetric responses for soluble-insoluble system

Imene Atek, Sunny Maye, Hubert H. Girault, Abed M. Affoune, Pekka Peljo 2018 Journal of Electroanalytical Chemistry

Redox Solid Energy Boosters for Flow Batteries

Elena Zanzola, C. R. Dennison, Alberto Battistel, Pekka Peljo, Heron Vrubel, Véronique Amstutz, Hubert H. Girault 2017 Electrochimica Acta

Photoproduction of Hydrogen by Decamethylruthenocene Combined with Electrochemical Recycling

Lucie Rivier, Pekka Peljo, Laurent A.C. Vannay, Grégoire C. Gschwend, Manuel A. Méndez, Clémence Corminboeuf, Micheál D. Scanlon, Hubert H. Girault 2017 Angewandte Chemie - International Edition

Redox Electrocatalysis of Floating Nanoparticles

Pekka Peljo, Micheál D. Scanlon, Astrid J. Olaya, Lucie Rivier, Evgeny Smirnov, Hubert H. Girault 2017 Journal of Physical Chemistry Letters

Mediated water electrolysis in biphasic systems

Pekka Peljo 2017 Physical Chemistry Chemical Physics

Understanding Digestive Ripening of Ligand-Stabilized, Charged Metal Nanoparticles

José A. Manzanares, Pekka Peljo, Hubert H. Girault 2017 Journal of Physical Chemistry C

Single Organic Droplet Collision Voltammogram via Electron Transfer Coupled Ion Transfer

Cheng Liu, Pekka Peljo, Xinjian Huang, Wenxue Cheng, Lishi Wang, Haiqiang Deng 2017 Analytical Chemistry

Electrovariable gold nanoparticle films at liquid-liquid interfaces

Grégoire C. Gschwend, Evgeny Smirnov, Pekka Peljo, Hubert H. Girault 2017 Faraday Discussions

Heterogeneous versus homogeneous electron transfer reactions at liquid–liquid interfaces

Pekka Peljo, Evgeny Smirnov, Hubert H. Girault 2016 Journal of Electroanalytical Chemistry

Self-healing gold mirrors and filters at liquid-liquid interfaces

Evgeny Smirnov, Pekka Peljo, Micheál D. Scanlon, Frederic Gumy, Hubert H. Girault 2016 Nanoscale

Gold Nanofilm Redox Catalysis for Oxygen Reduction at Soft Interfaces

Evgeny Smirnov, Pekka Peljo, Micheál D. Scanlon, Hubert H. Girault 2016 Electrochimica Acta

Ion transfer battery

Pekka Peljo, Marie Bichon, Hubert H. Girault 2016 Chemical Communications

All-vanadium dual circuit redox flow battery for renewable hydrogen generation and desulfurisation

Pekka Peljo, Heron Vrubel, Veronique Amstutz, Justine Pandard, Joana Morgado, Annukka Santasalo-Aarnio, David Lloyd, Frederic Gumy, C. R. Dennison, Kathryn E. Toghill, Hubert H. Girault 2016 Green Chemistry

Contact Potentials, Fermi Level Equilibration, and Surface Charging

Pekka Peljo, José A. Manzanares, Hubert H. Girault 2016 Langmuir

Enhanced Reactivity of Water Clusters towards Oxidation in Water/Acetonitrile Mixtures

Jonnathan C. Hidalgo-Acosta, Micheál D. Scanlon, Manuel A. Méndez, Pekka Peljo, Marcin Opallo, Hubert H. Girault 2016 CHEMELECTROCHEM

High energy density MnO4-/MnO42- redox couple for alkaline redox flow batteries

Alejandro N. Colli, Pekka Peljo, Hubert H. Girault 2016 Chemical Communications

Charge distribution and Fermi level in bimetallic nanoparticles

Nico Holmberg, Kari Laasonen, Pekka Peljo 2016 Physical Chemistry Chemical Physics

Chaotropic agents boosting the performance of photoionic cells

Romain Bourdon, Pekka Peljo, Manuel A. Méndez, Astrid J. Olaya, Jelissa De Jonghe-Risse, Heron Vrubel, Hubert H. Girault 2015 Journal of Physical Chemistry C

Redox flow batteries, hydrogen and distributed storage

C. R. Dennison, Heron Vrubel, Véronique Amstutz, Pekka Peljo, Kathryn E. Toghill, Hubert H. Girault 2015 CHIMIA

Decamethylruthenocene Hydride and Hydrogen Formation at Liquid|Liquid Interfaces

Lucie Rivier, T. Jane Stockmann, Manuel A. Méndez, Micheál D. Scanlon, Pekka Peljo, Marcin Opallo, Hubert H. Girault 2015 Journal of Physical Chemistry C

Charging and discharging at the nanoscale

Micheál D. Scanlon, Pekka Peljo, Manuel A. Méndez, Evgeny Smirnov, Hubert H. Girault 2015 Chemical Science

Interfacial Redox Catalysis on Gold Nanofilms at Soft Interfaces

Evgeny Smirnov, Pekka Peljo, Micheál D. Scanlon, Hubert H. Girault 2015 ACS Nano

Mechanism of oxygen reduction by metallocenes near liquid|liquid interfaces

T. Jane Stockmann, Haiqiang Deng, Pekka Peljo, Kyösti Kontturi, Marcin Opallo, Hubert H. Girault 2014 Journal of Electroanalytical Chemistry

Towards a thermally regenerative all-copper redox flow battery

Pekka Peljo, David Lloyd, Nguyet Doan, Marko Majaneva, Kyosti Kontturi 2014 Physical Chemistry Chemical Physics

Photo-ionic cells

Manuel A. Méndez, Pekka Peljo, Micheál D. Scanlon, Heron Vrubel, Hubert H. Girault 2014 Journal of Physical Chemistry C

Surprising acidity of hydrated lithium cations in organic solvents

Haiqiang Deng, Pekka Peljo, T. Jane Stockmann, Liang Qiao, Tuomas Vainikka, Kyösti Kontturi, Marcin Opallo, Hubert H. Girault 2014 Chemical Communications

Kinetic differentiation of bulk/interfacial oxygen reduction mechanisms at/near liquid/liquid interfaces using scanning electrochemical microscopy

Haiqiang Deng, Pekka Peljo, Dmitry Momotenko, Fernando Cortes-Salazar, T. Jane Stockmann, Kyösti Kontturi, Marcin Opallo, Hubert H. Girault 2014 Journal of Electroanalytical Chemistry

Electrochemical oxygen reduction at soft interfaces catalyzed by the transfer of hydrated lithium cations

Haiqiang Deng, T. Jane Stockmann, Pekka Peljo, Marcin Opallo, Hubert H. Girault 2014 Journal of Electroanalytical Chemistry

Parylene C coated microelectrodes for scanning electrochemical microscopy

Fernando Cortes-Salazar, Haiqiang Deng, Pekka Peljo, Carlos M. Pereira, Kyösti Kontturi, Hubert H. Girault 2013 Electrochimica Acta

Oxygen and hydrogen peroxide reduction by 1,2-diferrocenylethane at a liquid/liquid interface

Haiqiang Deng, Pekka Peljo, Fernando Cortés-Salazar, Peiyu Ge, Kyösti Kontturi, Hubert H. Girault 2012 Journal of Electroanalytical Chemistry

Hydrogen evolution across nano-Schottky junctions at carbon supported MoS2 catalysts in biphasic liquid systems

Peiyu Ge, Micheál Scanlon, Pekka Peljo, Xiaojun Bian, Heron Vubrel, Arlene "O'Neill", Jonathan N. Coleman, Marco Cantoni, Xile Hu, Kyösti Kontturi, BaoHong Liu, Hubert H. Girault 2012 Chemical Communications

Biomimetic oxygen reduction by cofacial porphyrins at a liquid-liquid interface

Pekka Peljo, Lasse Murtomäki, Tanja Kallio, H.J. Xu, M. Meyer, C. Gros, J.M. Barbe, H. Girault, Kari Laasonen, Kyösti Kontturi 2012 Journal of the American Chemical Society

Cofacial porphyrins as bio-inspired oxygen reduction catalysts at the liquid-liquid interface

Pekka Peljo, Lasse Murtomäki, Tanja Kallio, Hubert H. Girault, Kari Laasonen, Kyösti Kontturi 2012

Liquid/Liquid Interfaces, Electrochemistry

Pekka Peljo, Hurbert H. Girault 2012 Encyclopedia of Analytical Chemistry

Electrocatalysis at Liquid/Liquid Interface for Energy Applications

Pekka Peljo, Christoffer Johans, Lasse Murtomäki, Tanja Kallio, Kyösti Kontturi 2011 18th Conference on Solid State Ionics. Varsova, Puola. 3.-8.7.2011

Oxygen reduction at a water-1,2-dichlorobenzene interface catalyzed by cobalt tetraphenyl porphyrine - A fuel cell approach

Pekka Peljo, Taina Rauhala, Lasse Murtomäki, Tanja Kallio, Kyösti Kontturi 2011 International Journal of Hydrogen Energy

Molecular Fuel Cell utilizing a Liquid-Liquid Interface

Pekka Peljo, Lasse Murtomäki, Tanja Kallio, Kyösti Kontturi 2010 61st Annual Meeting of International Society of Electrochemistry, Nice, France, 26.9.-1.10.2010

Methanol, Ethanol and Iso-propanol Performance in Alkaline Direct Alcohol Fuel Cell (ADAFC)

Annukka Santasalo-Aarnio, Pekka Peljo, Eero Aspberg, Kyösti Kontturi, Tanja Kallio 2010 ECS Transactions
More information on our research in the Research database.
Research database
  • Published:
  • Updated:
Share
URL copied!