Pancake Bonding in Organic Radicals
Ph.D.
Materials Literature
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Ovlivnění tvaru housenky u metody TIG-141 formovacími plyny a aktivátory povrchu
Diplomova prace se zabýva ovlivněnim tvaru svarove housenky a jejiho kořene formovacimi plyny a aktivatory povrchu při použiti svařovaci metody 141 - TIG. Aktivatory povrchu přispivaji k lepsimu průvaru a zmensuji siřku svaru a TOO. V prakticke casti diplomove prace je provedeno svařovani navržených zkusebnich svarový…
一步电沉积Ca-P/CTS复合涂层的制备及其耐蚀性
通过一步电沉积法在AZ31镁合金基体表面上沉积钙磷/壳聚糖（Ca-P/CTS）复合涂层，通过共聚焦显微镜（CLSM）、扫描电镜（SEM）和红外光谱分析仪（FT-IR）对Ca-P/CTS复合涂层的形貌、结构以及成分进行分析，采用电化学测试研究了其耐蚀性。结果表明：Ca-P/CTS复合涂层能够有效提高AZ31镁合金基体的耐蚀性，当壳聚糖的质量浓度为0.2 g/L时，复合涂层的耐蚀性最好。
RESULTS OF TESTING AND ASSESSMENT OF THE POSSIBILITY OF BUILDING A SYSTEM OF SPECIALIZED SOLUTIONS FOR STRENGTH ANALYSISBASED ON CAE FIDESYS
The possibility of constructing a system of specialized solutions for strength analysis based on CAE Fidesys is considered. The results of testing CAE Fidesys are presented. The finite element method and the spectral element method implemented in CAE Fidesys are discussed for the problems of mechanics of a deformable…
In situ investigations of mechanochemical reactions - new insights in formation pathways
Mechanochemistry is increasingly used for synthesizing soft matter materials including metal organic compounds and cocrystals.1 The ever-increasing interest in this method is contrasted by a limited mechanistic understanding of the mechanochemical reactivity and selectivity. Time-resolved in situ investigations of mil…
Nanotechnology-Based Drug Delivery/Treatment Methods for Ischemic Heart Diseases
Ischemic heart conditions are some of the most prevalent disorders in the United States. These diseases also cause a significant number of mortalities each year. Despite considerable advances in treatment of the ischemic and infarct heart, many patients still develop complications and often progress to heart failure.…
Interfacial Layers of Small Molecule Organic Solar Cells
The influence of interfacial layers, introduced between electrodes and active layer, on organic solar cells was understood. Anode interfacial layer was made of vanadium oxide (V2O5) or 4,4′,4′′-Tris[phenyl(m-tolyl)amino]triphenylamine (m-MTDATA). V2O5 is an inorganic material and m-MTDATA is an organic material. Tris(…
The dispersion process of carbon nanotubes sonicated in aqueous solutions of a dispersant
Single-walled carbon nanotube (SWNT) dispersions are created by sonicating pristine SWNT powders added to aqueous solutions of the dispersant block copolymer Pluronic F127. In those dispersions, th ...
Configuration and Electronic Properties of the Interface between Lead Iodide Hybrid Perovskite and Self-assembled Monolayers in Solar Cells
Configuration and Electronic Properties of the Interface between Lead Iodide Hybrid Perovskite and Self-assembled Monolayers in Solar CellsHybrid perovskite photovoltaic materials are currently the most promising functional materials for solar cell applications with efficiency reaching to those of more conventional ma…
Studium kvality odmašťování ocelového povrchu
Tato bakalařska prace se zabýva vlivem koncentrace odmasťovaciho prostředku Simple Green Extreme na cistotu kovoveho materialu.Teoreticka cast bakalařske prace je zaměřena na seznameni se s možnostmi povrchových uprav kovů. Jedna se předevsim o mechanicke povrchove upravy a chemicke povrchove upravy.Prakticka cast bak…
Stabilization and aggregation of preformed silver clusters in room temperature ionic liquids: a UV/Vis and X-ray absorption spectroscopy study
Ionic liquids (ILs) have received considerable interest in various fields of research and promise a vast range of applications; among others, they are promising stabilizers for nanoparticles. ILs consist of a large organic cation and a small inorganic anion. The different charges of the molecules cause a strong attrac…
Growth and characterization of ADP single crystals
Ammonium dihydrogen phosphate (ADP) (NH4H2PO4) is an interesting inorganic non-linear material with excellent optical properties and has numerous device applications. Single crystals of ADP was grown using slow evaporation technique using AR grade samples of ADP. The grown crystals were characterised and studied using…
1P-106 Synthesis of environmentally-friendly blowing agent
Although azodicarbonamide(AC) has been commonly used as an industrial blowing agent, because of many advantages such as high gas expansion rate and uniformed foams, AC has an issue that it gives ammonia gas, which is blamed for its toxicity while it is decomposed in high temperature. In this study, we attempted to rem…
Síntesis y caracterización química y estructural de nanomateriales 1-d basados en óxido de cerio
El presente trabajo de tesis trata sobre la sintesis y caracterizacion quimica y estructural, sobre todo, a traves de microscopia electronica de nanoestructuras 1D basadas en oxido de cerio. En trabajos anteriores ya se ha estado investigando sobre la sintesis de estos materiales en forma de nanotubos crecidos mediant…
Engineering solid-state metalloproteins
The ability to harness the functional properties of metalloproteins within a solid-state material affords a number of commercial advantages such as stability and recyclability in heterogeneous biocatalysts and biosensors. Our strategy is to employ a recombinant coiled coil silk protein from honeybees as a de novo engi…
Density functional theory calculation of band gap of Iron (II) disulfide and Tellurium
In this work, the band gap of Iron(II)disulfide and Tellurium were computed using the density functional theory with different meta-GGA functionals. The results showed that the meta-GGA functional M06L gave the closest value of the band gap as 0.96ev compared to the experimental value of 0.95ev for Iron(II)disulfide w…
In-situ Thermal Reduction of Graphene Oxide/alkylamine for Reinforced Polybutylene Succinate Nanocomposite
Biodegradable polybutylene succinate (PBS) was incorporated with graphene oxide/octadecylamine (GOODA) via simultaneous in-situ reduction and functionalization of GOODA in PBS matrix. Functionalization of graphene oxide with octadecylamine prevented aggregation and resulted in homogeneous dispersion of GOODA in PBS na…
Mass and Heat Transfer in Intermetallic-Hydrogen Storage Tanks
Hydrogen is a potential future energy carrier, but reliable storage of the hydrogen is required for widespread use. Metal-hydrides (MH) are suitable materials for safe, stable and long-term hydrogen storage applications such as off-grid and hybrid solar systems due to the ability to store hydrogen at moderate pressure…
Probing the origins of electrochemical properties in electrodes for lithium ion batteries through in operando diffraction
In operando diffraction methods are widely employed to qualitatively follow the reaction progression in operating battery electrodes. However, performing thorough structural analysis with the aim of understanding the origins of battery performance during electrochemical cycling is significantly less common. There exis…
Structure-Function Relationships in Metal Hydrides: Origin of Pressure Hysteresis
The hydrogen storage properties of a metal are highly dependent on its structure, including the crystal structures of the metal and the hydride, the defect structures of the metal and the relationship between hydrogen cycling and these properties. The aim of this project was to establish a greater understanding of the…