Milan Bouša

Milan Bouša
Technical University of Liberec | TUL · Department of Material Science

RNDr. Ph.D.

About

44
Publications
5,884
Reads
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661
Citations
Citations since 2017
31 Research Items
536 Citations
2017201820192020202120222023050100150
2017201820192020202120222023050100150
2017201820192020202120222023050100150
2017201820192020202120222023050100150
Additional affiliations
April 2018 - November 2018
Foundation for Research and Technology - Hellas
Position
  • PostDoc Position
Description
  • Time-resolved Raman Spectroscopy of Graphene
January 2010 - March 2021
The Czech Academy of Sciences
Position
  • PostDoc Position
Education
September 2010 - September 2017
Charles University in Prague
Field of study
  • Anorganic Chemistry
September 2008 - February 2009
University of Valencia
Field of study
  • Geology
September 2003 - August 2009
Charles University in Prague
Field of study
  • Geology

Publications

Publications (44)
Article
Full-text available
The primary purpose of the review is to describe the biological growth and its effects on the goepolymeric and ordinary concrete surfaces. As the concrete ages, the surface alkalinity wears off by carbonation and weathering,thus prepares a suitable environment for biological growth. Micro�organisms such as algae, fungi and various types of bacteria...
Article
Full-text available
It is well-known that structural defects play a decisive role in electrochemical behavior of atomically thin materials, where all the defects are directly accessible by the electrolyte. However, the vast majority of experimental techniques do not allow disentanglement of the processes at the edges/defects from those at the intact basal plane. There...
Article
Graphite intercalation compounds (GICs) are widely known for their remarkable multifold physico-chemical properties and their numerous state-of-the-art applications, such as energy storage, sensors, lubrication, catalysis, magneto-optics, superconductivity, etc. However, the properties of GICs largely depend on the synthesis technique, structure, a...
Article
Full-text available
Nanocomposites of graphene materials and conducting polymers have been extensively studied as promising materials for electrodes of supercapacitors. Here, we present a graphene/polyaniline heterostructure consisting of a CVD-graphene and polyaniline monolayer and its electrochemical operation in a supercapacitor. The synthesis employs functionaliza...
Article
Full-text available
Examination of thermal decomposition of street samples of cocaine and methamphetamine shows that typical products detected in previous studies are accompanied by a wide palette of simple volatile compounds easily detectable by spectral techniques. These molecules increase smoke toxicity and their spectral detection can be potentially used for ident...
Article
Rising levels of atmospheric carbon dioxide (CO2) intensify global warming. Electrochemical reduction of CO2 allows its conversion into value‐added chemicals. This work presents the first application of 3D printing to manufacture catalysts for this process. Carbon nanotube‐based electrodes printed by fused deposition modeling were functionalized by...
Article
Full-text available
Systematic in situ Raman microdroplet spectroelectrochemical (Raman-μSEC) characterization of copper (I) thiocyanate (CuSCN) prepared using electrodeposition from aqueous solution on various substrates (carbon-based, F-doped SnO2) is presented. CuSCN is a promising solid p-type inorganic semiconductor used in perovskite solar cells as a hole-transp...
Article
Full-text available
This paper evaluates the influence of the morphology, surface area, and surface modification of carbonaceous additives on the performance of the corresponding cathode in a lithium–sulfur battery. The structure of sulfur composite cathodes with mesoporous carbon, activated carbon, and electrochemical carbon is studied by X-ray diffraction, nitrogen...
Article
Full-text available
Gold-mediated exfoliation of MoS2 has recently attracted considerable interest. The strong interaction between MoS2 and Au facilitates preferential production of centimeter-sized monolayer MoS2 with near-unity yield and provides a heterostructure system noteworthy from a fundamental standpoint. However, little is known about the detailed nature of...
Article
The photocatalytic reduction of CO2 to CH4 is a chemical process that to some extent occurs on a planetary surface of terrestrial planets. The effect of acidic proton on the rate of the photocatalytic reduction of CO2 on mineral surfaces was explored through the addition of HCl to our reaction system. HCl serves as H-donor and creates a band gap in...
Preprint
Gold-mediated exfoliation of MoS2 has attracted considerable interest in the recent years. A strong interaction between MoS2 and Au facilitates preferential production of centimeter-sized monolayer MoS2 with near-unity yield and provides a heterostructure system noteworthy from a fundamental standpoint. However, little is known about the detailed n...
Article
Full-text available
The heterostructures of two-dimensional (2D) and three-dimensional (3D) materials represent one of the focal points of current nanotechnology research and development. From an application perspective, the possibility of a direct integration of active 2D layers with exceptional optoelectronic and mechanical properties into the existing semiconductor...
Article
The main objective of this study is to provide data on the bulk elemental composition, mineralogy and the possible origin of the Porangaba meteorite, whose fall was observed at 17:35 UT on 9 January 2015 on several sites of the state of São Paulo in Brazil. The surface of the meteorite was mapped by Scanning Electron Microscopy (SEM) and optical mi...
Article
In-situ Raman spectroscopy, rotating ring-disk electrode (RRDE), cyclic voltammetry (CV) and linear sweep voltammetry (LSV) techniques were used to determine the catalytic activity of graphite and heteroatom-doped graphene catalysts toward the oxygen evolution reaction (OER) in alkaline media. Main results indicate that the OER is strongly influenc...
Article
Recent years have witnessed a boom in applying 3D printing technologies to manufacture customized prototypes in various fields of science. In electrochemistry, fused deposition modelling (FDM) 3D printing employing composite filaments based on thermoplastic materials and conductive allotropes of carbon enabled rapid, routine, inexpensive and operat...
Article
In recent years electrochemistry has joined the revolution in 3D printing. Not only electrochemical cells but also conductive electrodes may be now conveniently and inexpensively manufactured directly in electrochemical laboratories. However, 3D printed electrodes typically suffer from considerable intrinsic kinetic barrier that manifests itself as...
Article
The manufacture of electrodes by 3D printing approaches has recently been recognized as a fast, inexpensive and environmentally friendly alternative to traditional preparation techniques based on subtractive manufacturing tools. However, as-prepared 3D printed electrodes typically show a considerable intrinsic kinetic barrier for the electron trans...
Article
Raman spectroscopy is undoubtedly the most frequently used technique for universal characterization of graphene and related materials. Quantification of parameters like disorder or strain is possible through analysis of particular Raman bands. However, under certain conditions, such evaluation can be jeopardized by – sometimes hidden – convolution...
Article
Full-text available
Topographic corrugations, such as wrinkles, are known to introduce diverse physical phenomena that can significantly modify the electrical, optical and chemical properties of two-dimensional materials. This range of assets can be expanded even further when the crystal lattices of the walls of the wrinkle are aligned and form a superlattice, thereby...
Article
Full-text available
We investigated the use of a supported silicalite-1 film (SF) as a promising coating for metallic materials used in the fabrication of prostheses. The role of carbonaceous residua present on high-temperature calcined-SF in generating singlet oxygen for future use as a sterilization method has also been addressed, and the potential genotoxicity of t...
Article
Full-text available
Nanocrystalline Na2Ti3O7 material is prepared by a newly developed sol-gel procedure. The sol-gel made Na2Ti3O7 calcined at 500 °C possesses mesoporous structure and BET surface area of 89 m2 g−1. X-ray diffraction and scanning electron microscopy confirm the presence of sintered nanosheets or very small crystals of the size of 10–20 nm with short-...
Article
Full-text available
We present an approach that allows for the preparation of well-defined large arrays of graphene wrinkles with predictable geometry. Chemical vapor deposition grown graphene transferred onto hexagonal pillar arrays of SiO2 with sufficiently small interpillar distance forms a complex network of two main types of wrinkle arrangements. The first type i...
Thesis
Graphene research is nowadays one of the worldwide most prominent fields of interest in material science due to many extraordinary properties of graphene and related materials. Herein, a detailed study of the structural evolution of the graphene oxide during electrochemical treatment has been performed using X-ray photoelectron, Raman and infrared...
Article
Interaction of human osteoblast-like Saos-2 cells with a, b oriented silicalite-1 film is affected by its surface micro-roughness, controlled by a number of a oriented crystals on its surface, which can be simply tuned by synthesis conditions. The density of Saos-2 cells on days 1 and 3 after seeding increases with the number and dimensions of a or...
Article
This paper investigates the interaction of human osteoblast-like Saos-2 cells with stainless steel covered by a film of densely inter-grown silicalite-1 crystals with defined outer and inner surfaces. The chemical composition of this film, labeled as SF(RT), was tuned by heat treatment at 300 °C and 500 °C (labeled as SF(300) and SF(500), respectiv...
Article
We present Schottky junction solar cell composed of graphene transferred onto hydrogenated amorphous and microcrystalline silicon, a low-cost alternative to well-explored crystalline silicon. We demonstrated sample with open-circuit voltage of 445 mV, a remarkable value for undoped graphene-based solar cell. Photovoltaic characteristics of this sam...
Article
Twisted bilayer graphene (tBLG) represents a family of unique materials with optoelectronic properties tuned by the rotation angle between the two layers. The presented work shows an additional way of tweaking the electronic structure of tBLG: by modifying the interlayer distance, for example by a small uniaxial out-of-plane compression. We have fo...
Article
Mechanical properties of graphene prepared by chemical vapour deposition (CVD) are not easily comparable to the properties of nearly perfect graphene prepared by mechanical cleavage. In this work, we attempt to investigate the mechanical performance of CVD graphene (simply supported or embedded in polymer matrix), transferred by two different techn...
Article
The spontaneous isotopic exchange of oxygen atoms between dry powdered Ti16O2-containing minerals and gaseous C18O2 was studied using gas-phase high-resolution Fourier transform infrared absorption spectroscopy (FTIR) of carbon dioxide isotopologues. The absorption rovibrational spectra of all measured carbon dioxide isotopologues were assigned and...
Conference Paper
Full-text available
The research on graphene has attracted much attention since its first successful preparation in 2004. It possesses many unique properties, such as an extreme stiffness and strength, high electron mobility, ballistic transport even at room temperature, superior thermal conductivity and many others. The affection for graphene was followed swiftly by...
Conference Paper
Full-text available
The transfer of graphene prepared by Chemical Vapor Deposition (CVD) from metal catalyst to target substrate is an important step in preparing desirable nanoscale structures in various fields of science, and thus searching for fast, cheap and clean method attracts great interest. Investigation of mechanical properties of graphene, which are crucial...
Article
Full-text available
The intentional functionalization of benzene, coronene (C24H12) and circumcoronene (C54H18) by subsequent addition of singlet oxygen and water molecules was investigated using density functional theory calculations. Detailed study of mechanism, intermediates and their interactions were performed, thermodynamics of the processes is discussed and mos...
Article
Electrochemical n-doping of dense thin films of TiO2 (anatase) occurs upon proton insertion from acidic aqueous electrolyte solution. Details of the reaction are investigated by cyclic voltammetry and by electrochemical impedance spectroscopy. The good-quality films are ideally compact, mimicking the properties of a macroscopic single-crystal elect...
Article
Full-text available
LiFePO4 olivine (LFP) with few-layer graphene oxide (FLGO) was tested by repeated electrochemical charging/discharging. Here we report on a novel effect that the LFP/FLGO composite, which is electrochemically almost idle in a freshly made state, spontaneously enhances its activity, when the charge/discharge cycling progresses. Based on electrochemi...
Article
Full-text available
Electrochemical reduction of few-layer graphene oxide (FLGO) is a simple method for a partial restoration of sp2 network of the graphitic planes damaged by the previous oxidation/exfoliation process, and it is especially interesting for the in situ activation of FLGO in applications for energy conversion and storage. We present a detailed study of...
Article
Electrochemical and chemical (with n-butyllithium) insertion of Li into TiO2 (anatase) is studied by Raman spectroscopy and by in situ Raman spectroelectrochemistry. Four isotopologue combinations in the system, namely 6/7LixTi16/18O2 (with x being the insertion coefficient), are prepared and studied. Spectral assignment is supported by numerical s...
Article
We present the first Raman spectroscopic study of Bernal bilayer graphene flakes under uniaxial tension. Apart from a purely mechanical behavior in flake regions where both layers are strained evenly, certain effects stem from inhomogeneous stress distribution across the layers. These phenomena such as the removal of inversion symmetry in bilayer g...
Article
Full-text available
The electrochemical behavior of TiO2 anatase with a predominant (001) face (ANA001) was studied by cyclic voltammetry of Li insertion and chronoamperometry. Both voltammetric and chronoamperometric diffusion coefficients and rate constants proved the higher activity of ANA001 toward Li insertion compared to that of a reference anatase material (C24...

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Projects

Projects (2)
Archived project
We aim to design, fabricate and study heterostructures composed of a 3D semiconductor (Si) and a doped 2D material (graphene, transition metal dichalcogenides). Planar as well as spatially nanostructured junctions of either p-n or Schottky character will be evaluated for their use in photovoltaics. The project is funded by the Czech Science Foundation.
Project
A project funded by Czech Science Foundation focused on various aspects of deformation of 2D materials and the influence of mechanical strain on their (opto)electronic properties.