Federico Baiutti

Federico Baiutti
IREC Catalonia Institute for Energy Research | IREC · Department of Advanced Materials for Energy

PhD

About

58
Publications
6,225
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
320
Citations
Introduction
I have 8+ years experience in the field of materials and devices for energy applications and electronics, which I gained in internationally recognized research centres. After a PhD in fundamentals of oxide materials, I am now focused on the development of new-generation energy systems oxidefuel cells, electrolyzers, micro gas sensors) through materials engineering and nanostructuring. My hands-on expertise is on oxide thin-film nanostructured materials and solid state electrochemistry.
Additional affiliations
April 2019 - present
IREC Catalonia Institute for Energy Research
Position
  • Senior Researcher
January 2018 - March 2018
University of Cambridge
Position
  • Researcher
July 2016 - April 2019
IREC Catalonia Institute for Energy Research
Position
  • PostDoc Position
Education
September 2008 - July 2011
University of Trieste
Field of study
  • Materials Engineering

Publications

Publications (58)
Article
Full-text available
The exploitation of interface effects turned out to be a powerful tool for generating exciting material properties. Such properties include magnetism, electronic and ionic transport and even superconductivity. Here, instead of using conventional homogeneous doping to enhance the hole concentration in lanthanum cuprate and achieve superconductivity,...
Article
Full-text available
New emerging disciplines such as Nanoionics and Iontronics are dealing with the exploitation of mesoscopic size effects in materials, which become visible (if not predominant) when downsizing the system to the nanoscale. Driven by the worldwide standardisation of thin film deposition techniques, the access to radically different properties than tho...
Chapter
Oxide molecular beam epitaxy (MBE) is a unique technique for the synthesis of high-quality oxide thin films and heterostructures devoted to fundamental studies and to the fabrication of nanosized devices. In recent times, such a growth method has been customized for the realization of different multicomponent oxide materials. In the present article...
Article
Full-text available
The utilization of interface effects in epitaxial systems at the nanoscale has emerged as a very powerful approach for engineering functional properties of oxides. Here we present a novel structure fabricated by a state-of-the-art oxide molecular beam epitaxy method, and consisting of lanthanum cuprate and strontium (Sr)-doped lanthanum nickelate,...
Article
Full-text available
The exploration of interface effects in complex oxide heterostructures has led to the discovery of novel intriguing phenomena in recent years and has opened the path towards the precise tuning of materials properties at the nanoscale. One recent example is space-charge superconductivity. Among the complex range of effects which may arise from phase...
Article
Full-text available
Extending the potential window toward the 3 V plateau below the typically used range could boost the effective capacity of LiMn 2 O 4 spinel cathodes. This usually leads to an "overdischarge" of the cathode, which can cause severe material damage due to manganese dissolution into the electrolyte and a critical volume expansion (induced by Jahn−Tell...
Article
Full-text available
Different SrTiO3 thin films are investigated to unravel the nature of ultra‐low conductivities recently found in SrTiO3 films prepared by pulsed laser deposition. Impedance spectroscopy reveals electronically pseudo‐intrinsic conductivities for a broad range of different dopants (Fe, Al, Ni) and partly high dopant concentrations up to several perce...
Article
Oxides are critical materials for energy devices like solid oxide cells, catalysts, and membranes. Their performance is often limited by their catalytic activity at reduced temperatures. In this work, a simple etching process with acetic acid at room temperature was used to investigate how oxygen exchange is influenced by surface chemistry and meso...
Article
The exploration for thermoelectric thin films of complex oxides such as SrTiO3-based oxides is driven by the need for miniaturized harvesting devices for powering the Internet of Things (IoT). However, there is still not a clear consensus in the literature for the underlying influence of film thickness on thermoelectric properties. Here, we report...
Article
When processed using state-of-the-art techniques, Solid Oxide Cells (SOCs) fabrication (e.g. tape casting) requires many fabrications steps. Recently Additive Manufacturing (AM) techniques have gained popularity to complement or substitute SOCs fabrication processes. AM allows the combination of different techniques to produce complete cells, minim...
Article
Full-text available
The call for material systems with enhanced mass transport properties is central in the development of next-generation fuel cells, batteries and solid state energy devices in general. While two-dimensional doping by artificial heterostructuring or nanoscaling has shown great potential for overcoming kinetic limitations of ion diffusion, the length...
Article
Full-text available
The enhancement of solid oxide cell (SOC) oxygen electrode performance through the generation of nanocomposite electrodes via infiltration using wet-chemistry processes has been widely studied in recent years. An efficient oxygen electrode consists of a porous backbone and an active catalyst, which should provide ionic conductivity, high catalytic...
Article
Full-text available
Tuning oxygen mass transport properties at the nanoscale offers a promising approach for developing high performing energy materials. A number of strategies for engineering interfaces with enhanced oxygen diffusivity and surface exchange have been proposed. However, the origin and the magnitude of such local effects remain largely undisclosed to da...
Article
High temperature solid oxide solar cells based on SrTiO3 (STO) are investigated. Schottky contacts between STO and different materials, including La1-xSrxCrO3, La0.8Sr0.2MnO3, La0.6Sr0.4CoO3 and metals like Au and Pt are illuminated by UV light with a wavelength of 365 nm at 350 °C in air and the resulting voltages and currents are measured. With c...
Article
The analysis of energy loss near edge structures in EELS is a powerful method for a precise characterization of elemental oxidation states and local atomic coordination with an outstanding lateral resolution, down to the atomic scale. Given the complexity and sizes of the EELS spectrum images datasets acquired by the state-of-the-art instrumentatio...
Article
The defect chemistry and electronic trapping energies in undoped single crystalline SrTiO3 were examined by electrochemical impedance spectroscopy at low (25-160 ∘C) and intermediate (500-700 ∘C) temperatures. Electronic and ionic conductivity as well as chemical capacitance values were obtained with a transmission line equivalent circuit. Impedanc...
Preprint
Full-text available
Tuning oxygen mass transport properties at the nanoscale offers a promising approach for developing high performing energy materials. A number of strategies for engineering interfaces with enhanced oxygen diffusivity and surface exchange has recently been proposed. However, the origin and the local magnitude of such local effects remain largely und...
Preprint
Tuning oxygen mass transport properties at the nanoscale offers a promising approach for developing high performing energy materials. A number of strategies for engineering interfaces with enhanced oxygen diffusivity and surface exchange has recently been proposed. However, the origin and the local magnitude of such local effects remain largely und...
Article
Strontium titanate (SrTiO3) has received much attention due to its wide range of potential applications, including in electrochemical devices such as solid oxide fuel cells and capacitors. The stability and safety features of SrTiO3 led to the development of promising electrodes for Li-ion batteries. Here, we use density functional theory simulatio...
Preprint
Full-text available
Micro-solid oxide fuel cells based on thin films have strong potential for use in portable power devices. However, devices based on silicon substrates typically involve thin-film metallic electrodes which are unstable at high temperatures. Devices based on bulk metal substrates overcome these limitations, though performance is hindered by the chall...
Article
Full-text available
The implementation of nano-engineered composite oxides opens up the way towards the development of a novel class of functional materials with enhanced electrochemical properties. Here we report on the realization of vertically aligned nanocomposites of lanthanum strontium manganite and doped ceria with straight applicability as functional layers in...
Article
Oxide interfaces have attracted a huge amount of interest in recent years due to their novel functionalities that are not possible in bulk. Here we employ atomistic simulation techniques to study the defect properties and oxygen ion migration energy in bulk SrTiO3, LaCrO3 and SrTiO3–LaCrO3 interface. The SrO and La2O3 “Schottky-like” defects are fo...
Article
Full-text available
Micro-solid oxide fuel cells based on thin films have strong potential for use in portable power devices. However, devices based on silicon substrates typically involve thin-film metallic electrodes which are unstable at high temperatures. Devices based on bulk metal substrates overcome these limitations, though performance is hindered by the chall...
Article
The interplay of structure, composition and electrical conductivity was investigated for Fe-doped SrTiO 3 thin films prepared by pulsed laser deposition. Structural information was obtained by reciprocal space mapping while solution-based...
Article
La 2 NiO 4 is a very promising cathode material for intermediate and low temperature solid oxide cell applications, due to its good electronic and ionic conductivity, together with its high oxygen exchange...
Article
Infiltration of nano-catalysts in ionic-conductive backbones is receiving increasing attention to fabricate highly performing electrodes for Solid Oxide Cells application. In particular, nanostructured, high surface area scaffolds based on ceria and infiltrated with functional perovskites have already proved their excellent catalytic activity as ox...
Article
Atomic-scale Considerations on LaNiO3-La2CuO4 Heterostructures: Interface—thermoelectricity Relationship - Pinar Kaya, Y. Eren Suyolcu, Federico Baiutti, Petar Yordanov, Georg Christiani, Friederike Wrobel, Eva Benckiser, Bernhard Keimer, Hanns-Ulrich Habermeier, Giuliano Gregori, Gennady Logvenov, Peter van Aken, Joachim Maier
Article
Atomic-scale Identification of High-temperature Superconductivity at La2CuO4 Interfaces - Y. Eren Suyolcu, Federico Baiutti, Yi Wang, Wilfried Sigle, Georg Christiani, Gennady Logvenov, Joachim Maier, Peter van Aken
Article
Mesoporous ceria possesses high potential as a functional material for high-temperature energy applications, owing to an ordered percolating network for oxygen ion conductivity, to a good catalytic activity towards solid/gas reactions and to a maximized porosity in the nanometric range. Here we developed highly performing gadolinium-doped mesoporou...
Preprint
Full-text available
We present a methodology based on \textit{ex-situ} (post-growth) electrochemistry to control the oxygen concentration in thin films of the superconducting oxide La$_2$CuO$_{4+y}$ grown epitaxially on substrates of isostructural LaSrAlO$_4$. The superconducting transition temperature, which depends on the oxygen concentration, can be tuned by adjust...
Article
We present a methodology based on ex situ (postgrowth) electrochemistry to control the oxygen concentration in thin films of the superconducting oxide La2CuO4+y grown epitaxially on substrates of isostructural LaSrAlO4. The superconducting transition temperature, which depends on the oxygen concentration, can be tuned by adjusting the pH level of t...
Article
Mixed ionic electronic conductors (MIEC) are pivotal materials in a number of electrochemical devices that are relevant for clean energy technologies and industrial chemical processes. In this report progress, an overview of the recent strategies to tune surfaces and interfaces of MIEC fluorite and perovskite oxides for solid oxide fuel cells and m...
Article
Full-text available
Probing Jahn-Teller Distortions at Superconducting La2CuO4 Interfaces - Volume 24 Supplement - Y. Eren Suyolcu, Yi Wang, Wilfried Sigle, Federico Baiutti, Georg Cristiani, Gennady Logvenov, Joachim Maier, Peter A. van Aken
Article
Full-text available
The discovery of novel phenomena occurring at interfaces in complex oxide heterostructures has stimulated large interest in recent years due to the prominent possibilities of tuning functionalities at the atomic layer scale. It is the complex interactions between atoms at the interfaces of epitaxial oxide systems which contribute to intriguing phys...
Article
Full-text available
Transition metal oxides exhibit a high potential for application in the field of electronic devices, energy storage, and energy conversion. The ability of building these types of materials by atomic layer-by-layer techniques provides a possibility to design novel systems with favored functionalities. In this study, by means of the atomic layer-by-l...
Article
Full-text available
In the last years high temperature Solid Oxide Electrolysis Cells (SOECs) have emerged as a promising solution for energy conversion and storage. Oxygen electrodes based on mesoporous materials are proposed for enhancing the performance and durability of SOEC devices.
Article
Full-text available
Understanding the interplay between different orders in a solid is a key challenge in highly correlated electronic systems. In real systems this is even more difficult since disorder can have strong influence on the subtle balance between these orders and thus can obscure the interpretation of the observed physical properties. Here we present a stu...
Article
The magnetic field distribution of the vortex lattice of optimally doped La1.84Sr0.16CuO4 thin films of various thicknesses, grown on different substrates, was investigated. The influence of film thickness and biaxial strain on the magnetic penetration depth and the superconducting number density were studied using muon spin rotation and compared t...
Article
Full-text available
Tuning the octahedral network represents a promising route for achieving new properties and functionalities in perovskite-based oxide heterostructures. One of the interface-mediated phenomena occurring in complex oxides is the Jahn—Teller (JT) effect. With the purpose of investigating octahedral distortions at interfaces showing high-temperature in...
Article
Full-text available
The image is a compilation of the findings presented in the work. It includes the different dopant distribution lengths and Jahn-Teller distortions observed in Ba-, Sr- and Ca-doped La2CuO4 bilayer samples. Distribution lengths for each sample are marked with different colors located on an experimental STEM-ABF image of the epitaxial layer. Moreove...
Article
Influence of Substrate Temperature and Dopant Distribution at Two-Dimensionally Doped Superconducting La2CuO4 Interfaces - Volume 23 Issue S1 - Y. Eren Suyolcu, Yi Wang, Federico Baiutti, Giuliano Gregori, Georg Cristiani, Wilfried Sigle, Joachim Maier, Gennady Logvenov, Peter A. van Aken
Preprint
Full-text available
The understanding of the interplay between different orders in a solid is a key challenge in highly correlated electronic systems. In real systems this is even more difficult since disorder can have a strong influence on the subtle balance between these orders and thus can obscure the interpretation of the observed physical properties. Here we pres...
Article
Full-text available
Among the range of complex interactions, especially at the interfaces of epitaxial oxide systems, contributing to the occurrence of intriguing effects, a predominant role is played by the local structural parameters. In this study, oxide molecular beam epitaxy grown lanthanum cuprate-based bilayers (consisting of a metallic (M) and an insulating ph...
Chapter
Atomic-scale investigation of interface phenomena in two-dimensionally Sr-doped La2CuO4 and La2CuO4/ La2-xSrxNiO4 superlattices Y. Wang, Y. E. Suyolcu, W. Sigle, U. Salzberger, F. Baiutti, G. Gregori, G. Cristiani, G. Logvenov, J. Maier, and P.A. van Aken Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569 Stuttgart, Germany Phys...
Article
div class="title">Visualizing Interface Effects in Two-dimensionally Doped La 2 CuO 4 and La 2 CuO 4 / La 2-x Sr x NiO 4 Superlattices - Volume 22 Issue S3 - Y. Wang, W. Sigle, U. Salzberger, F. Baiutti, G. Gregori, G. Christiani, G. Logvenov, J. Maier, P.A. van Aken
Article
Using spherical aberration corrected high-resolution and analytical scanning transmission electron microscopy, we have quantitatively studied the lattice distortion and the redistribution of charges in two-dimensionally strontium (Sr)-doped La2CuO4 superlattices, in which single LaO planes are periodically replaced by SrO planes. As shown previousl...
Article
Full-text available
div class="title">Atomic-Scale Quantitative and Analytical STEM Investigation of Sr-δ-Doped La 2 CuO 4 Multilayers - Volume 21 Issue S3 - Y. Wang, W. Sigle, D. Zhou, F. Baiutti, G. Logvenov, G. Gregori, G. Cristiani, J. Maier, P.A. van Aken
Thesis
Full-text available
Effects arising at interfaces in ionic materials represent an exciting opportunity towards the realization of nanosized systems having improved or novel functionalities. For this reason, they have been the object of a number of studies in recent years. In particular heterogeneous doping, relying on the introduction of interfaces in order to locally...
Article
Full-text available
In this paper we present the atomic-layer-by-layer oxide molecular beam epitaxy (ALL-oxide MBE) which has been recently installed in the Max-Planck Institute for Solid State Research and we report on its present status, providing some examples that demonstrate its successful application in the synthesis of different layered oxides, with particular...

Network

Cited By

Projects

Projects (4)
Project
EPISTORE aims to revolutionize the energy storage sector by developing pocket-sized kW-range stacks based on thin film reversible Solid Oxide Cells (TF-rSOCs). This device will be able to efficiently store renewable electricity for applications where the use of batteries is inefficient due to size constraints or long term storage requirements, e.g. off-shore power generation or transportation. EpiStore puts together a multi-disciplinary European consortium formed by leaders in the new R&I paradigms proposed in this project. The interaction between excellent research teams with outstanding technological industry will be essential for providing societal, environmental and economic benefits. https://www.epistore.eu https://twitter.com/EpiStore_eu
Project
Functional oxide systems are at the basis of a whole new-generation of miniaturized solid-state devices for electronics, energy conversion and energy storage. In these systems, the role of ionic structure and defects (dopant element distribution, dislocations, grain boundaries, interfaces and surfaces) and the local interaction between ionic and electronic species play a pivotal role and can become predominant over the expected bulk behavior. These nanoionic effects may lead to the improvement of existing functionalities or even to the emergence of novel states, that can be harvested for application. The possibility of fabricating layered heterostructures and “interface-dominated” materials as well as of controlling nanoscale phenomena and dimensionality is key for a rational use of such materials in technology. This symposium is aimed to bridge the fundamentals of oxide local structures with device fabrication and oxide implementation into real devices. It will provide a forum for discussion on oxide physics and chemistry, including surface activity, space-charge effects, local non-stoichiometry, strain, high electron and ion mobility states, and mass transport at the interfaces. Furthermore, it will focus on the practical utilization of such effects for several applications including solid oxide fuel cells, memories and neuromorphic devices, gas sensors, electrolyzers and microbatteries. Attention will be put on state-of-the-art techniques for thin-film fabrication such as PLD, sputtering, ALD, MBE and on strategies for their scalability such as large area deposition, epitaxy on Si and film transfer onto technological supports. Advances on microscopy, spectroscopy and electrical methods for local characterization will be discussed. https://www.european-mrs.com/ion-related-phenomena-nanoscale-oxide-systems-fundamentals-applications-emrs
Project
Harvestore is a FET European project for the development of micro harvesting and storage devices (μ-harvestorers) integrated in Si and able to power wireless nodes for next-generation Internet of Things. The μ-harvestorers will be batteryless systems able to collect and store energy from heat and light at the same time, with no need for accessibility and maintenance and with a cm-scale footprint. Harvestore puts together the most recent advances in the field of functional nanomaterials (nanionics and iontronics) with state-of-the-art device microfabrication techniques based on thin films and Si integration technology. Our consortium comprises some of the main actors in Europe among research, technology and industrial centers. http://www.harvestore.eu/ https://twitter.com/harvestoreeu