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Over the past ten years, self-aligned TiO2 nanotubes have attracted tremendous scientific and technological interest due to their anticipated impact on energy conversion, environment remediation and biocompatibility. In the present…

Materials Science · Physics 2016-10-17 Francesca Riboni , Nhat Truong Nguyen , Seulgi So , Patrik Schmuki

In the present review we try to give a comprehensive and most up to date view to the field, with an emphasis on the currently most investigated anodic TiO2 nanotube arrays. We will first give an overview of different synthesis approaches to…

Materials Science · Physics 2016-10-18 Kiyoung Lee , Anca Mazare , Patrik Schmuki

The present study investigates the effect of different reaction times on the crystallinity, surface morphology and size of iron oxide nanoparticles. In this synthetic system, aqueous iron (III) nitrate (Fe(NO$_3$)$_3\cdot9$H$_2$O)…

Applied Physics · Physics 2021-10-29 Ioannis Papagiannis , Mauro S. Innocente , Evangelos I. Gkanas

A complex oxalate precursor, CaCu3(TiO)4(C2O4)8.9H2O, was synthesized and the precipitate that obtained was confirmed to be monophasic by the wet chemical analyses, X-ray diffraction, FTIR absorption and TG, DTA analyses. The thermal…

Materials Science · Physics 2013-01-21 P. Thomas , K. Dwarakanath , K. B. R. Varma , T. R. N. Kutty

Nickel oxide nanoparticles of different sizes are prepared and characterized by x-ray diffraction and transmission electron microscopy. A.C. susceptibility measurements as a function of temperature are carried out for various particle sizes…

Soft Condensed Matter · Physics 2007-05-23 S. D. Tiwari , K. P. Rajeev

The facile chemical precipitation method and subsequent thermal treatment were shown to be suitable for preparation of crystalline ThO2 nanoparticles(NPs) in a wide range of particle sizes (from 2.5 to 34.3 nm). The obtained NPs were…

The unique structural features and suitability of the SiO2 micro particles in different application areas have mobilized a worldwide interest in the last few decades. In this report a classical method known as the Stober method has been…

The incorporation of impurities during the chemical synthesis of nanomaterials is usually uncontrolled and rarely reported because of the formidable challenge that constitutes measuring trace amounts of often light elements with sub…

Optical properties of colloidal plasmonic titanium nitride nanoparticles are examined with an eye on their photothermal via transmission electron microscopy and optical transmittance measurements. Single crystal titanium nitride cubic…

Skyrmions in confined geometries have been a subject of increasing interest due to the different properties that they exhibit compared to their bulk counterparts. In this study, nanoparticles of skyrmion-hosting…

Strongly Correlated Electrons · Physics 2021-11-17 S. J. R. Holt , A. Štefančič , J. C. Loudon , M. R. Lees , G. Balakrishnan

The specific mechanisms which leads to the formation of fractal nanostructures by pulsed laser deposition remain elusive despite intense research efforts, motivated mainly by the technological interest in obtaining tailored nanostructures…

Mesoscale and Nanoscale Physics · Physics 2016-02-23 G. L. Celardo , D. Archetti , G. Ferrini , L. Gavioli , P. Pingue , E. Cavaliere

We report here a new concept, the use of bipolar electrochemistry, which allows the rapid and wireless growth of self-assembled TiO2 NT layers that consist of highly defined and controllable gradients in NT length and diameter. The gradient…

Mesoscale and Nanoscale Physics · Physics 2016-10-18 G. Loget , S. So , R. Hahn , P. Schmuki

Au-Cu bimetallic nanoparticles (NPs) grown on TiO 2 (110) have been followed in-situ using grazing incidence x-ray diffraction and x-ray photoemission spectroscopy from their synthesis to their exposure to a CO/O 2 mixture at low pressure…

Nonlinear optics at the nanoscale has emerged as a sought-after platform for sensing and imaging applications. The development of these materials is having an impact on fields that include advanced information technology, signal processing…

Optics · Physics 2024-12-24 Rana Faryad Ali , Byron D. Gates

Understanding the structural phase diagram of nano scale SrTiO3 has important implications on the basic physics and applications of the general class of transition metal oxide perovskites. Pressure dependent structural measurements on…

Nanoscale BaTiO3 particles (approximately 10 nm) prepared by ball-milling a mixture of oleic acid and heptane have been reported to have an electric polarization several times larger than that for bulk BaTiO3. In this work, detailed local,…

Materials Science · Physics 2023-02-16 H. Zhang , S. Liu , S. Ghose , B. Ravel , I. U. Idehenre , Y. A. Barnakov , S. A. Basun , D. R. Evans , T. A. Tyson

Highly crystalline UO2 nanoparticles (NPs) with sizes of 2-3 nm were produced by fast chemical deposition of uranium(IV) under reducing conditions at pH 8-11. The particles were then characterized by microscopic and spectroscopic techniques…

At the nanometric scale, the synthesis of a random alloy (i.e. without phase segregation, whatever the composition) by chemical synthesis remains a not easy task, even for simple binary type systems. In this context, a unique approach based…

The formation process of core-shell bimetallic nanoparticles synthesized by sputtering onto a substrate is observed in real time using an originally developed acoustic technique. The technique enables us to evaluate the structural change of…

Applied Physics · Physics 2022-03-04 Nobutomo Nakamura , Koji Matsuura , Akio Ishii , Hirotsugu Ogi

A template-free process for the synthesis of nanocrystalline TiO2 hierarchical microstructures by reactive Pulsed Laser Deposition (PLD) is here presented. By a proper choice of deposition parameters a fine control over the morphology of…

Materials Science · Physics 2013-11-28 F. Di Fonzo , C. S. Casari , V. Russo , M. F. Brunella , A. Li Bassi , C. E. Bottani