Welcome to my webpage!
I am Marco Altomare, tenure track assistant professor at the Faculty of Science and Technology (S&T) of the University of Twente (UT).
- - - WE ARE HIRING! 2 PhD + 1 Postdoc vacancies - - -
- Nov. 2023: fresh off the (open access) press! Check out our JACS article on a Metastable Ni(I)-TiO2–x Photocatalyst. We found that illuminating reduced TiO2 in Ni2+ aqueous solutions forms a metastable Ni+/TiO2-x photocatalyst that over time generates H2 at increasingly higher rates, without noble metal catalysts or sacrificial agents. We probed the metastable Ni(I) species by in-situ XAS and EPR spectroscopy. Self-amplifying reaction schemes as observed in this work may have considerable potential for simple one-pot synthesis and use of photocatalysts.
- Nov. 2023: WE ARE HIRING! 1 Postdoc position in electrochemical upgrade of biogenic carbonyl compounds. Interested to hear more? Reach out to email@example.com
- Oct. 2023: WE ARE HIRING! 2 PhD positions in electrocatalysis, materials science and spectro-electrochemistry. Interested to hear more? Reach out to firstname.lastname@example.org
- Oct. 2023: Proud of our team contribution at the 244th ElectroChemical Society (ECS) meeting in Gothenburg, Sweden. Here the subjects we covered:
- "Dewetted" Metal Nanoparticles As a Platform to Study Electrocatalytic Reactions
- Fabrication of Faceted Metal Nanocrystal Electrodes By Solid-State Dewetting
- Gas-Phase Electrochemical Conversion of Methane on Boron-Doped Diamond Gas Diffusion Anodes
- Metastable Ni(I)-TiO2-X Photocatalyst: Self-Amplifying H2 Evolution from Plain Water
- Sept. 2023: Another chapter out! "Metal oxide semiconductor nanomaterials for heterogeneous photocatalysis", part of the book "Sustainable Nanomaterials for Energy Applications". Recommended to young researchers approaching the subject in their master or PhD projects.
- Sept. 2023: We presented our work on "Role of metal/support interaction in dewetted Pt nanoparticles for electrocatalytic hydrogen evolution" at the 74th Annual Meeting of the International Society of Electrochemistry (ISE) in Lyon, France.
- May/June 2023: European Materials Research Society (E-MRS) 2023 Spring Meeting in Strasbourg, France! We presented our study on a "Metastable Ni(I)-TiO2-x Photocatalyst" in symposium D (Advanced sustainable materials for energy applications).
- Jan. 2023: Our chapter is out! "Structure, materials, and preparation of photoelectrodes", as part of the book "Photoelectrocatalysis - Fundamentals and Applications", a large international collaborative effort providing status of research and perspectives on photo-electrochemistry.
- Dec. 2022: Dr. Marco Altomare appointed Early Career Advisory Board member for ChemSusChem, from January 2023. Check out the editorial!
- Nov. 2022: Dr. Marco Altomare appointed Organizing Committee member of the Dutch ElectroChemical Conversion and Materials ECCM graduate school. The next edition of the school will be held in Noordwijk,13-16 June 2023. Pre-registration will open on 1 Feb 2023. Check out the ECCM webpage for more information.
- Oct. 2022: Check out our latest open access article by Marco Pinna on sputtered NiCu co-catalyst films for H2 evolution via photocatalytic ethanol reforming on ChemCatChem.
I am tenure track assistant professor at the University of Twente (UT) since January 2021.
I am passionate about education and research in the fields of materials science and photo-/electro-catalysis. My group’s research bridges materials science at the nanoscale to heterogeneous catalysis for the sustainable production of fuels and chemicals. We combine physical vapor deposition and solid-state methods – to design model nanostructured catalysts - with in-situ characterization techniques to elucidate structure-performance relationships and investigate catalyst stability in photo- and electro-catalytic reactions.
I lead the Electro-Chemical Materials Science team (ECMS), which is hosted by the PhotoCatalytic Synthesis group (PCS) of Prof. G. Mul at the Faculty of Science and Technology of UT.
ACADEMIC EXPERIENCE & EDUCATION
- Tenure track assistant professor at Uni Twente, NL
- Postdoc in materials science at Uni Erlangen-Nuremberg, DE, Schmuki lab
- PhD in metal oxide photo-electrocatalysis at Uni Milano, IT, Selli lab
- Master in Chemistry, Uni Milano, IT
During my PhD at Uni Milan IT, I developed photocatalytic materials that drive chemical reactions powered by solar light. I focused on earth-abundant semiconductor materials, namely metal oxides, and investigated their synthesis by electrochemical anodization to produce one-dimensional nanostructures.
I joined Uni Erlangen-Nuremberg DE as postdoc, where I worked on solid-state dewetting, i.e., the heat induced transformation of metal films into arrangements of defined metal particles, to design model photocatalytic materials.
At Uni Twente, I am expanding further my work on dewetting in the fields of photo- and electrocatalysis. With my team, we aim at investigating controlled dewetting processes to develop model nanostructured metal catalysts and electrodes for photo- and electrochemical conversion. We focus particularly on water splitting and hydrogen evolution.
Electro-Chemical Materials Science (ECMS) - Altomare research group
The research of my team focuses on materials science at the nanoscale and is diversified over four interlaced themes: solid-state dewetting, electro- and photo-catalysis, and X-ray spectroscopy. Besides, I also lead a responsible research and innovation project studying the societal impact of electrocatalytic technologies.
I. Team members and research lines
- Shreyas Harsha (PhD candidate, electrocatalysis) and Rakesh Sharma (Postdoc, electrocatalysis) team up to study the electrochemical performance of dewetted nanoparticles. They focus on the effect of catalyst structure, morphology and composition on the electrocatalytic performance of dewetted nanoparticles (e.g., Pt, Pd, Ni, or bimetallic systems such as PdCu, NiCu). Electrochemical processes of interest are water electrolysis, i.e., hydrogen and oxygen evolution reactions, selective hydrogenation of carbonyl compounds from bio-oil upgrade, and selective reduction of nitrates in waste water.
- Tursun Abudukade (PhD candidate, photocatalysis) and Marco Pinna (PhD, photocatalysis, guest from Uni Como, Italy) join forces to investigate the stability and dynamic behavior of earth-abundant metal co-catalysts, such as Ni and Cu nanoparticles, on metal oxide semiconductors for photocatalytic reactions of environmental relevance such as solar water splitting and hydrogen generation. For this, they adopt operando synchrotron techniques such as X-ray absorption/emission spectroscopy.
- Adam Vass (Postdoc, electrocatalysis) studies the electrochemical conversion of methane to valuable products (methanol, ethane, ethylene) developing a gas-phase electrolyzer based on earth-abundant anode materials (e.g., transition metal oxides such as W, Sn or Ti oxides). He explores mechanistic aspects of methane conversion by operando infrared spectroscopy.
- Senna Middelveld (Postdoc, responsible research and innovation) Electrochemical conversion processes are expected to contribute in the near future to a transition towards more sustainable ("green") chemicals produced from surplus renewable electricity from wind and solar energy. Senna studies possible socio-technical configurations and pathways related to the electrochemical conversion in the chemical industry, spanning from established processes (water electrolysis and hydrogen generation) to perspective applications (e.g., upgrade of bio-oil, synthesis of hydrogen peroxide, or water treatment). She focuses on assessing the environmental and societal implications of materials (electrocatalysts and electrode materials) and produced chemical compounds.
II. Running projects
- NWO-ECCM Tenure Track project "Highly-defined nanostructured electrodes by solid state dewetting" 2021-2025
- DFG project "Dewetted earth-abundant co-catalysts for photocatalysis" 2021-2025
- NWO-ECCM MVI project "Electrifying the chemical production – Responsible pathways and material choices" 2022-2025; Uni Twente consortium with K. Konrad, L. Franco Garcia, and A. Weber
- NWO-ECCM KICk start project "Gas-phase electrocatalysis for methane valorization (ELEVATION)" 2022-2023; Consortium with G. Katsoukis (Uni Twente, NL), M. Tsampas (DIFFER, NL), R. Palkovits (Uni RWTH Aachen, DE), T. Franken (Uni Erlangen-Nuremberg, DE), and industrial partners VSparticle (NL) and Fumatech (DE)
III. Research output
See below or click here for full publication record
VI. Collaborators (by themes)
- E. Spiecker and J. Will, CENEM, Uni Erlangen-Nuremberg, DE
- G. Mul, Uni Twente, NL
- P. Schmuki, Uni Erlangen-Nuremberg, DE
- G. Zoppellaro, RCPTM Uni Palacky Olomouc, CZ
- A. Naldoni, Uni Torino, IT
- L. Palmisano and M. Bellardita, Uni Palermo, IT
- R. Marschall, Uni Bayreuth, DE
- N.T. Nguyen, Uni Concordia, Canada
- S. Recchia and D. Spanu, Uni Como Insubria, IT
- G. Katsoukis, Uni Twente, NL
- B.T. Mei, Uni Bochum, DE
- A. Minguzzi, Uni Milano, IT
- C. Baeumer, Uni Twente, NL
- I. Makhotkin, Uni Twente, NL
- M. Tsampas, DIFFER, NL
- R. Palkovits, Uni RWTH Aachen, DE
- T. Franken, Uni Erlangen-Nuremberg, DE
- S. Rosiwal, Uni Erlangen-Nuremberg, DE
- P. Ghigna, Uni Pavia, IT
- V. Saveleva, ESRF Grenoble, FR
- C. Atzori, ESRF Grenoble, FR
Responsible research and innovation
- K. Konrad, Uni Twente, NL
- L. Franco Garcia, Uni Twente, NL
- A. Weber, Uni Twente, NL
- NWO Dutch Research Council
- Uni Twente - MESA+
- DFG German Research Foundation
- M. Altomare*, S. Qin, V.A. Saveleva, Z. Badura, O. Tomanec, A. Mazare, G. Zoppellaro, A. Vertova, A. Taglietti, A. Minguzzi, P. Ghigna, P. Schmuki "Metastable Ni (I)-TiO2–x Photocatalysts: Self-Amplifying H2 Evolution from Plain Water without Noble Metal Co-Catalyst and Sacrificial Agent" JACS 2023 https://doi.org/10.1021/jacs.3c08199
- K. Wenderich, M. Altomare* “Chapter 6. Metal oxide semiconductor nanomaterials for heterogeneous photocatalysis” Textbook “Sustainable Nanomaterials for Energy Applications” 2023 1st Edition, IOP Publishing; Editors: A. Cremades, D. Maestre; Online ISBN: 978-0-7503-3531-7; DOI: 10.1016/B978-0-12-823989-6.00005-9
- M. Altomare*, N.T. Nguyen, A. Naldoni, R. Marschall. “Chapter 3. Structure, materials, and preparation of photoelectrodes” Textbook “Photoelectrocatalysis: Fundamentals and Applications” 2023 1st Edition, Elsevier; Editors: L. Palmisano, S. Yurdakal; eBook ISBN: 9780128242421; DOI: 10.1016/B978-0-12-823989-6.00005-9
- M. Pinna, A.W.W. Wei, D. Spanu, J. Will, T. Yokosawa, E. Spiecker, S. Recchia, P. Schmuki, M. Altomare* “Amorphous NiCu Thin Films Sputtered on TiO2 Nanotube Arrays: A Noble-Metal Free Photocatalyst for Hydrogen Evolution” ChemCatChem 2022, 14, 23, e202201052; DOI: 10.1002/cctc.202201052
- E. Wierzbicka, M. Altomare*, M. Wu, N. Liu, T. Yokosawa, D. Fehn, S. Qin, K. Meyer, T. Unruh, E. Spiecker, L. Palmisano, M. Bellardita, J. Will, P. Schmuki "Reduced grey brookite for noble metal free photocatalytic H2 evolution" J. Mater. Chem. A, 2021, 9, 1168; DOI: 10.1039/D0TA09066B
- D. Spanu, A. Minguzzi, S. Recchia, F. Shahvardanfard, O. Tomanec, R. Zboril, P. Schmuki, P. Ghigna, M. Altomare* “An Operando X-Ray Absorption Spectroscopy Study of a NiCu-TiO2 Photocatalyst for H2 Evolution” ACS Catalysis 2020, 10, 8293; DOI: 10.1021/acscatal.0c01373
- F. Shahvaranfard, P. Ghigna, A. Minguzzi, E. Wierzbicka, P. Schmuki, M. Altomare* “Dewetting of PtCu Nanoalloys on TiO2 Nanocavities Provides a Synergistic Photocatalytic Enhancement for Efficient H2 Evolution” ACS Applied Materials & Interfaces 2020, 12, 38211; DOI: 10.1021/acsami.0c10968
- M. Licklederer, N.T. Nguyen, R. Mohammadi, H. Park, S. Hejazi, M. Halik, N. Vogel, M. Altomare*, P. Schmuki “Dewetted Au Nanoparticles on TiO2 Surfaces – Evidence of a Size-Independent Plasmonic Photo-Electrochemical Response” The Journal of Physical Chemistry C 2019, 123, 16934; DOI: 10.1021/acs.jpcc.9b02769
- A. Naldoni, M. Altomare, G. Zoppellaro, N. Liu, Š. Kment, R. Zbořil, P. Schmuki “Photocatalysis with Reduced TiO2: From Black TiO2 to Cocatalyst-Free Hydrogen Production” ACS Catalysis 2019, 9, 345, open access; DOI: 10.1021/acscatal.8b04068
- D. Spanu, S. Recchia, S. Mohajernia, O. Tomanec, Š. Kment, R. Zboril, P. Schmuki, M. Altomare* “Templated Dewetting-Alloying of NiCu Bilayers on TiO2 Nanotubes Enables Efficient Noble Metal-Free Photocatalytic H2 Evolution” ACS Catalysis 2018, 8, 5298; DOI: 10.1021/acscatal.8b01190
- M. Altomare, N.T. Nguyen, S. Hejazi, P. Schmuki “A Cocatalytic Electron Transfer Cascade Site-Selectively Placed on TiO2 Nanotubes Yields Enhanced Photocatalytic H2 Evolution” Advanced Functional Materials 2018, 28, 1704259; DOI: 10.1002/adfm.201704259
- M. Altomare, N.T. Nguyen, P. Schmuki “Templated Dewetting: Designing Entirely Self-Organized Platforms for Photocatalysis” Chemical Science 2016, 7, 6865, open access; DOI: 10.1039/C6SC02555B
- M. Altomare, O. Pfoch, A. Tighineanu, R. Kirchgeorg, K. Lee, E. Selli, P. Schmuki “Molten o-H3PO4 – A New Electrolyte for the Anodic Synthesis of Self-Organized Oxide Structures: WO3 Nanochannel Layers and Others” Journal of the American Chemical Society 2015, 137, 5646; DOI: 10.1021/jacs.5b02104
- M. Altomare, M.V. Dozzi, G.L. Chiarello, A. Di Paola, L. Palmisano, E. Selli “High activity of brookite TiO2 nanoparticles in the photocatalytic abatement of ammonia in water” Catalysis Today 2015, 252, 184; DOI: 10.1016/j.cattod.2014.09.031
- M. Altomare, K. Lee, M.S. Killian, E. Selli, P. Schmuki “Ta-Doped TiO2 Nanotubes for Enhanced Solar-Light Photoelectrochemical Water Splitting” Chemistry – A European Journal 2013, 19, 5841; DOI: 10.1002/chem.201203544
- M. Altomare, M. Pozzi, M. Allieta, L.G. Bettini, E. Selli “H2 and O2 photocatalytic production on TiO2 nanotube arrays: Effect of the anodization time on structural features and photoactivity” Applied Catalysis B: Environmental 2013, 136-137, 81; DOI: 10.1016/j.apcatb.2013.01.054
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Affiliated Study Programmes
Courses Academic Year 2023/2024
Courses Academic Year 2022/2023
Dewetted materials for photo- & electro-catalysis
Solid-state dewetting, or simply dewetting, is based on the metastable nature of thin metal films, which when heated up to sufficiently high temperatures tend to agglomerate forming particles. This phenomenon occurs via surface diffusion of metal atoms due to the high surface-to-volume ratio of thin films.
Dewetting received large attention in the past for causing failure of micro- and nano-electronic components. Thus, it has been regarded as detrimental for technology advancement and has been widely investigated to understand mechanistic aspects and prevent its occurrence. Our research takes a different perspective: controlled dewetting opens for unique design concepts for functional metal nanoparticles.
Since metal particles are crucial towards a variety of technologies and applications, for example heterogeneous catalysis, my team studies controlled dewetting phenomena to produce supported metal nanoparticles with defined properties, e.g., size, composition, morphology and structure, for application in photo- or electro-catalysis.
- Dec. 2022: Dr. Marco Altomare appointed Early Career Advisory Board member for ChemSusChem
- June 2022: Dr. Marco Altomare appointed Organizing Committee member of the Dutch ElectroChemical Conversion and Materials ECCM graduate school. The next edition of the school will be held in Noordwijk,13-16 June 2023. Pre-registration will open on 1 Feb 2023. Check out the ECCM webpage for more information.
- Nov. 2021: Granted NWO ECCM KICk start project to Dr. Marco Altomare on "Gas phase electrocatalysis for methane valorization (ELEVATION)"
- July 2021: Granted NWO ECCM MVI project to Dr. Marco Altomare