We report here the synergistic effect of graphene and diglyme electrolyte in significantly improving the sodium insertion electrochemistry of nanocrystalline anatase TiO2.
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Production of mixed phase Ti-rich TiO thin films by oxide defect engineered crystallization.
Nanoscale
December 2024
Surface Science Laboratory, Physics Unit, Faculty of Engineering and Natural Sciences, Tampere University, Tampere, Finland.
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- Amorphous TiO can achieve better chemical stability through annealing, but the final crystalline structure is determined by defects in the initial amorphous phase.
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pair distribution function analysis of nanocrystalline functional materials: the case of TiO-bronze nanocrystals in Li-ion battery electrodes.
J Appl Crystallogr
August 2024
Department of Chemistry, Aarhus University, DK-8000Aarhus C, Denmark.
Structural modelling of pair distribution function (PDF) data of complex functional materials can be highly challenging. To aid the understanding of complex PDF data, this article demonstrates a toolbox for PDF analysis. The tools include denoising using principal component analysis together with the , and apps available through the online service 'PDF in the cloud' (, https://pdfitc.
View Article and Find Full Text PDFStructure and Properties of Bioactive Titanium Dioxide Surface Layers Produced on NiTi Shape Memory Alloy in Low-Temperature Plasma.
Micromachines (Basel)
July 2024
Faculty of Materials Science and Engineering, Warsaw University of Technology, 02-507 Warsaw, Poland.
Background: The NiTi alloy, known for its shape memory and superelasticity, is increasingly used in medicine. However, its high nickel content requires enhanced biocompatibility for long-term implants. Low-temperature plasma treatments under glow-discharge conditions can improve surface properties without compromising mechanical integrity.
View Article and Find Full Text PDFSol-Gel Synthesis of TiO with Pectin and Their Efficiency in Solar Cells Sensitized by Quantum Dots.
Gels
July 2024
School of Engineering and Technological Innovation, University of Guadalajara, Campus Tonalá, Av. Nuevo Periférico No. 555, Tonalá 45425, Jalisco, Mexico.
In this study, titanium oxide TiO nanoparticles were produced using the sol-gel approach of green synthesis with pectin as the reducing agent. The synthetized TiO nanoparticles with pectin were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), visible light absorption (UV-Vis) and the BET method. The structure and morphology of the TiO powder were described with SEM, revealing uniform monodisperse grains with a distribution of 80% regarding sizes < 250 nm; the resulting crystal phase of synthetized TiO was identified as an anatase and rutile phase with a crystallinity size estimated between 27 and 40 nm.
View Article and Find Full Text PDFZn-containing TiO-based coatings with Na, Ca, Si, and K additives were obtained by plasma electrolytic oxidation (PEO) of Ti in order to achieve an effective and broad bactericidal protection without compromising biocompatibility. A protocol has been developed for cleaning the coating surface from electrolyte residues, ensuring the preservation of the microstructure and composition of the surface layer. Using high-resolution transmission electron microscopy, three characteristic microstructural zones in the PEO-Zn coating are well documented: zone 1 with a TiO-based nanocrystalline structure, zone 2 with an amorphous structure, and zone 3 around pores with an amorphous-nanocrystalline structure.
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