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PhD topics for academic year 2021/2022

Department of Inorganic Chemistry

Faculty of Chemical Technology

Advanced composites based on magnesium oxychloride and layered nanomaterials

Jankovský Ondřej, Doc. Ing. Ph.D. ( Ond...@vscht.cz)
In this dissertation thesis, reactive magnesia-based composites will be prepared and characterized. The Sorel cement phase 5 (Mg3(OH)5Cl.H2O, MOC) will be used as a matrix and carbon-based layered nanomaterials (graphene, graphite oxide) will be used as an additive. Also, various types of alternative fillers will be used. All prepared samples will be characterized in terms of their phase and chemical composition, morphology and thermal behavior. The prepared macroscopic samples will be subjected to mechanical testing.
Faculty of Chemical Technology

Anorganic-polymer microrobots for drug delivery

Pumera Martin, prof. RNDr. Ph.D. ( pum...@vscht.cz)
Faculty of Chemical Technology

Ceramic composite filters for water treatment

Jankovský Ondřej, Doc. Ing. Ph.D. ( Ond...@vscht.cz)
The dissertation thesis will be focused on the development of advanced composite filters for the removal of pesticides, heavy metals and nanoplastics from contaminated groundwaters. The prepared composite filters will be coated using nanomaterials based on graphene oxide, cerium (IV) oxide, and titanium (IV) oxide.
Faculty of Chemical Technology

Chemistry of inorganic analogues of graphene - nanostructures based on pnictogens

Sofer Zdeněk, prof. Ing. Ph.D. ( Zde...@vscht.cz)
The thesis is focused on the covalent and non-covalent interactions of layered pnictogens in order to improve their long-term stability. Mono- and multi-layer materials will be prepared by optimized mechanical exfoliation processes. For non-covalent interactions, substituted delocalized organic systems will be tested and their effect on material transport properties will be studied. The covalent functionalization will be performed using radical reactions. Finally, preparation of functional microelectronic devices based on FET transistors and photodetectors will be studied and optimized.
Faculty of Chemical Technology

Chemistry of inorganic analogues of graphene - nanostructures based on pnictogens

Sofer Zdeněk, prof. Ing. Ph.D. ( Zde...@vscht.cz)
The thesis is focused on the covalent and non-covalent interactions of layered pnictogens in order to improve their long-term stability. Mono- and multi-layer materials will be prepared by optimized mechanical exfoliation processes. For non-covalent interactions, substituted delocalized organic systems will be tested and their effect on material transport properties will be studied. The covalent functionalization will be performed using radical reactions. Finally, preparation of functional microelectronic devices based on FET transistors and photodetectors will be studied and optimized.
Faculty of Chemical Technology

Inorganic graphene analogs - sillicone, germicen and derivatives of them

Sofer Zdeněk, prof. Ing. Ph.D. ( Zde...@vscht.cz)
Topic is focus on development o novel inorganic analogues of graphene, study of their reactivity and possibilities of derivatisation. Synthetic methods will focus on development of Zintl phase exfoliation procedures. Materials will be studied for future applications in photocatalysis and electrocatalysis as well as energy storage applications.
Faculty of Chemical Technology

Layered carbides – novel materials for electronic applications

Sofer Zdeněk, prof. Ing. Ph.D. ( Zde...@vscht.cz)
Topic is focused on synthesis of layered carbides (MAX phases) and their exfoliation on MXene. Synthesis and exfoliation procedures will be optimized to reach maximum yield of monolayers. Synthesized materials will be characterized by structural and spectroscopic analytical methods. Materials will be studied for applications in energy storage filed including batteries and supercapacitors.
Faculty of Chemical Technology

Layered forms of silicon and germanium and their optical properties and applications

Sofer Zdeněk, prof. Ing. Ph.D. ( Zde...@vscht.cz)
The fast-growing family of layered materials based on silicon and germanium possess unique optical properties which are strongly dependent on their surface functionalization. This work will be focused on chemical modifications of the surface of silicon and germanium layers and the influence of introduced functional groups on their luminescent properties. The optimized materials will be tested for electronic applications with a focus on hybrid LEDs and solar cells. Further, student will investigate a compatibility of synthesized 2D nanomaterials with organic semiconductors for a preparation of the hybrid optoelectronic heterostructures.
Faculty of Chemical Technology

Layered forms of silicon and germanium and their optical properties and applications

Sofer Zdeněk, prof. Ing. Ph.D. ( Zde...@vscht.cz)
The fast-growing family of layered materials based on silicon and germanium possess unique optical properties which are strongly dependent on their surface functionalization. This work will be focused on chemical modifications of the surface of silicon and germanium layers and the influence of introduced functional groups on their luminescent properties. The optimized materials will be tested for electronic applications with a focus on hybrid LEDs and solar cells. Further, student will investigate a compatibility of synthesized 2D nanomaterials with organic semiconductors for a preparation of the hybrid optoelectronic heterostructures.
Faculty of Chemical Technology

Layered chalcogenides for energy storage applications

Sofer Zdeněk, prof. Ing. Ph.D. ( Zde...@vscht.cz)
This thesis is focused on the exploration of layered chalcogenides and their applications in energy storage and electrocatalysis.
Faculty of Chemical Technology

Layered chalcogenides for energy storage applications

Sofer Zdeněk, prof. Ing. Ph.D. ( Zde...@vscht.cz)
This thesis is focused on the exploration of layered chalcogenides and their applications in energy storage and electrocatalysis.
Faculty of Chemical Technology

Micro and nanorobots based on photocatalytic materials for biomedical applications

Pumera Martin, prof. RNDr. Ph.D. ( pum...@vscht.cz)
Candidate will construct microrobots powered by chemicals for drug delivery and cancer treatment using inorganic chemistry approach. Candidate will learn how to fabricate micro and nanorobots by electrochemical and physical vapor deposition approach, how to operate and remotely control micro and nanorobots and how to chemically program them. More on www.nanorobots.cz
Faculty of Chemical Technology

Micro and nanorobots for targeted drugs delivery to cancer cells

Pumera Martin, prof. RNDr. Ph.D. ( pum...@vscht.cz)
Candidate will construct microrobots powered by chemicals for drug delivery and cancer treatment using inorganic chemistry approach based on photoactive systems. Candidate will learn how to fabricate micro and nanorobots by electrochemical and physical vapor deposition approach, how to operate and remotely control micro and nanorobots and how to chemically program them. More onwww.nanorobots.cz
Faculty of Chemical Technology

Multicomponent silicate and borate structures to be used in thermal neutrons detection

Jakeš Vít, Ing. Ph.D. ( jak...@vscht.cz)
This work will be focused on multi-component silicate and borate structures with substitution of activator ions in order to increase the phase and chemical resistivity of the material and to improve the scintillation response in the detection of neutron radiation.
Faculty of Chemical Technology

Nanostructures based on MXene type layered carbides

Sofer Zdeněk, prof. Ing. Ph.D. ( Zde...@vscht.cz)
This thesis is focused on the preparation of layered MAX phases with general composition M1+yAXy, where M is transition metal, A is metal or semi-metal from the group of p-elements (Al, Si, Ge) and X is carbon or nitrogen. MAX phases have a unique layered structure which can be chemically exfoliated to monolayers of MXens with general composition M1+yXy. Their surface can be stabilized by various functional groups. Student will work on the development of new methods for synthesis of MAX phases (SPS methods, high-temperature ceramic synthesis) and the processes of chemical exfoliation and surface functionalization. The prepared materials will be tested for applications in energetic (hydrogen evolution, Li and Na batteries, and membranes for hydrogen separation or supercapacitors). The influence of composition and structure on their properties will be studied as well.
Faculty of Chemical Technology

Preparation and crystal growth of scintillating materials based on alkali halides and study of new doping concepts

Rubešová Kateřina, doc. Ing. Ph.D. ( kat...@vscht.cz)
The topic of this work will be focused on the preparation and crystal growth of scintillating materials based on hygroscopic alkali halides, e.g. sodium iodide (NaI), cesium iodide (CsI), doped with monovalent cations (e.g. Tl), by vertical Bridgman and micro-pulling-down methods. The work will be performed in collaboration with the company NUVIA a.s. and Physical Institute, ASCR. The study will aim on the optimization of the growth technology of bulk NaI:Tl single crystals prepared by the vertical Bridgman method and on the study of new co-doping concepts in alkali halides (NaI:Tl) by cations of higher valence state, e.g. Sr, Ca, Eu2+. The composition (elemental and phase) of prepared materials and their crystals as well as the thermal, optical, luminescence, and scintillation properties will be studied. The goal of this work is to improve the optical quality of prepared crystals (for industrial applications), the optimization of the crystals composition to improve the scintillation parameters such as high light yield and fast scintillation response. This work will be realized partly under employment contract with the possibility of future career development at NUVIA.a.s.
Development principles: Optimalizace technologie růstu velkoobjemových krystalů NaI:Tl připravovaných vertikální Bridgmanovou metodou na pracovišti firmy NUVIA bude zahrnovat: (i) optimalizaci kvality vstupních surovin metodou rekrystalizace, tj. stanovením čistoty a homogenity vstupních surovin, (ii) optimalizaci růstu krystalů vertikální Bridgmanovou metodou testováním různých růstových podmínek, tj. měřením teplotního pole (teplotního gradientu) v peci a stanovením jeho vlivu a vlivu tažící rychlosti na pozici a tvar fázového rozhraní a (iii) optimalizaci chladící rychlosti a jejího vlivu na výslednou kvalitu krystalu. Druhá část této práce bude zaměřena na studium nových dopačních konceptů v alkalických halogenidech kationty o vyšším mocenství, např. Sr, Ca, Eu2+, ad. Monokrystaly uvedených sloučenin budou připravovány z taveniny metodou micro-pulling-down na pracovišti Fyzikálního ústavu AV ČR. Fázová a strukturní charakterizace připravených vzorků bude například zahrnovat techniky rentgenové a elektronové difrakce, XPS, SEM, TEM nebo Ramanovu spektroskopii. Optické chování připravených vzorků bude charakterizováno například pomocí fotoluminiscenční spektroskopie, teplotně stimulované luminiscence nebo scintilace buzené vysokoenergetickým zářením; bude také studována kinetika těchto jevů.
Faculty of Chemical Technology

Synthesis of layered transition metal dichalcogenides by vapor transport growth and CVD methods.

Sofer Zdeněk, prof. Ing. Ph.D. ( Zde...@vscht.cz)
Research work is focus on development of novel procedures for vapor transport growth of layered transition metal dichalcogenides with focus on control of composition and reduction of defect density. Further the work focus on development of CVD deposition methods for large area growth and heterostructure preparation of layered chalcogenides.
Faculty of Chemical Technology

Synthesis of layered transition metal dichalcogenides by vapor transport growth and CVD methods.

Sofer Zdeněk, prof. Ing. Ph.D. ( Zde...@vscht.cz)
Research work is focus on development of novel procedures for vapor transport growth of layered transition metal dichalcogenides with focus on control of composition and reduction of defect density.
Further the work focus on development of CVD deposition methods for large are growth and heterostructure preparation of layered chalcogenides.More details can be fund on web page of project:
https://itn-2exciting.chm.tu-dresden.de/positions/vscht/.
Faculty of Chemical Technology

Synthesis of 2D nanomaterials by "bottom-up" processes

Sofer Zdeněk, prof. Ing. Ph.D. ( Zde...@vscht.cz)
2D nanomaterials based on MoS2 and related substances exhibit unique properties. These materials will be prepared by hydrothermal synthesis from various precursors. The synthesis will be optimized in order to obtain nanostructures with defined number of layers. Prepared materials will be characterized by advanced techniques such as AFM, Raman spectroscopy and measurement of photoluminescence spectra.
Faculty of Chemical Technology

Synthesis of 2D nanomaterials by "bottom-up" processes

Sofer Zdeněk, prof. Ing. Ph.D. ( Zde...@vscht.cz)
2D nanomaterials based on MoS2 and related substances exhibit unique properties. These materials will be prepared by hydrothermal synthesis from various precursors. The synthesis will be optimized in order to obtain nanostructures with defined number of layers. Prepared materials will be characterized by advanced techniques such as AFM, Raman spectroscopy and measurement of photoluminescence spectra.
Faculty of Chemical Technology

Synthesis of 2D nanomaterials by "bottom-up" processes

Sofer Zdeněk, prof. Ing. Ph.D. ( Zde...@vscht.cz)
2D nanomaterials based on MoS2 and related substances exhibit unique properties. These materials will be prepared by hydrothermal synthesis from various precursors. The synthesis will be optimized in order to obtain nanostructures with defined number of layers. Prepared materials will be characterized by advanced techniques such as AFM, Raman spectroscopy and measurement of photoluminescence spectra.
Faculty of Chemical Technology

Tuning of defect-related luminescence in single- and nano-crystalline ZnO using systematic rare-earth doping for the use in photonics

Nekvindová Pavla, doc. Ing. Ph.D. ( pav...@vscht.cz)
Project is dealing with very attractive material ZnO design doped with rare-earth (RE) from experimental as well as theoretical point of view. Newly project going to respect to the modification and creation of intrinsic and extrinsic ZnO defects and how the combination of RE with defects or other elements can be utilized for the tuning of UV-VIS-NIR luminescence. Fabricated ZnO single-crystalline and nanostructured samples will be tested in photonic devices with tunable luminescence in UV-VIS-NIR and for degradation of water pollutants.
Faculty of Chemical Technology

2D materials based on graphene and related materials for energy storage

Pumera Martin, prof. RNDr. Ph.D. ( pum...@vscht.cz)
Faculty of Chemical Technology

2D materials for heterogeneous catalysis

Sofer Zdeněk, prof. Ing. Ph.D. ( Zde...@vscht.cz)
Thesis is focused on study of 2D materials (layered chalcogenides and carbides) for applications in heterogeneous chemical and electrochemical catalysis. Research mainly focus on synthesis and application exploration in the field of catalysis and biocatalysis using supports based on 2D materials for chemical and electrochemical synthesis.
Faculty of Chemical Technology

2D materials for heterogeneous catalysis

Sofer Zdeněk, prof. Ing. Ph.D. ( Zde...@vscht.cz)
Thesis is focused on study of 2D materials (layered chalcogenides and carbides) for applications in heterogeneous chemical and electrochemical catalysis. Research mainly focus on synthesis and application exploration in the field of catalysis and biocatalysis using supports based on 2D materials for chemical and electrochemical synthesis.
Faculty of Chemical Technology

2D materials for photo-electrochemical decomposition of water

Sofer Zdeněk, prof. Ing. Ph.D. ( Zde...@vscht.cz)
This thesis is focused on the use of 2D nanomaterials based on layered chalcogenides and their composites for photo-electrochemical water splitting. Student will work on tailoring of their properties by doping, surface functionalization and composition optimization in order to reduce overpotential for photocatalytic hydrogen evolution and optimize the response of materials to different wavelengths of light in the visible and ultraviolet region.
Faculty of Chemical Technology

2D materials for photo-electrochemical decomposition of water

Sofer Zdeněk, prof. Ing. Ph.D. ( Zde...@vscht.cz)
This thesis is focused on the use of 2D nanomaterials based on layered chalcogenides and their composites for photo-electrochemical water splitting. Student will work on tailoring of their properties by doping, surface functionalization and composition optimization in order to reduce overpotential for photocatalytic hydrogen evolution and optimize the response of materials to different wavelengths of light in the visible and ultraviolet region.
Faculty of Chemical Technology

2D nanomaterials for energy applications

Sofer Zdeněk, prof. Ing. Ph.D. ( Zde...@vscht.cz)
This thesis is focused on the investigation of applications of new layered materials based on transition metal chalcogenides for the construction of cathodes in Li and Na batteries. These materials will be studied in terms of the relation between their structure and composition; and their stability and capacity. The prepared materials will be studied in detail using advanced analytical techniques (HR-SEM and HR-TEM; AFM; XPS; Raman spectroscopy; electrochemical techniques).
Faculty of Chemical Technology

2D nanomaterials for energy applications

Sofer Zdeněk, prof. Ing. Ph.D. ( Zde...@vscht.cz)
This thesis is focused on the investigation of applications of new layered materials based on transition metal chalcogenides for the construction of cathodes in Li and Na batteries. These materials will be studied in terms of the relation between their structure and composition; and their stability and capacity. The prepared materials will be studied in detail using advanced analytical techniques (HR-SEM and HR-TEM; AFM; XPS; Raman spectroscopy; electrochemical techniques).
Faculty of Chemical Technology

2D nanomaterials for the detection of pollutants in the environment

Pumera Martin, prof. RNDr. Ph.D. ( pum...@vscht.cz)
Candidate will fabricate 2D materials for environmental remediation. He/she will develop efficient catalyst to remove nitroaromatic and pesticide pollutants in ground waters using electrochemical and photoelectrochemical methods. More on www.nanorobots.cz
Faculty of Chemical Technology

3D printing for electrochemical sensors and biosensors for environmental remediation

Pumera Martin, prof. RNDr. Ph.D. ( pum...@vscht.cz)
Faculty of Chemical Technology

3D printing for the preparation of 3D graphene electrodes for detecting the decontamination of pollutants in the environment

Pumera Martin, prof. RNDr. Ph.D. ( pum...@vscht.cz)
Candidate will fabricate 3D printed electrodes for environmental remediation. He/she will develop efficient catalyst to remove nitroaromatic and pesticide pollutants in ground waters. More onwww.nanorobots.cz
Updated: 11.12.2019 11:36, Author: Jan Kříž

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