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Related papers: Spaced TiO$_2$ Nanotube Arrays Allow for High Perf…

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In this work, we report on the electrochemical behavior of nitrided spaced TiO$_2$ nanotubes conformally coated with a nanocrystalline Nb$_2$O$_5$ layer and find for these hierarchical structures an excellent supercapacitor performance.…

Applied Physics · Physics 2020-05-05 Selda Ozkan , Nhat Truong Nguyen , Imgon Hwang , Anca Mazare , Patrik Schmuki

In the present work we grow self-organized TiO2 nanotube arrays with a defined and controlled regular spacing between individual nanotubes. These defined intertube gaps allow to build up hierarchical 1D-branched structures, conformally…

Materials Science · Physics 2016-10-27 Nhat Truong Nguyen , Selda Ozkan , Imgon Hwang , Anca Mazare , Patrik Schmuki

In present work, we report on the use of organized TiO$_2$ nanotube layers with a regular intertube spacing for the growth of highly defined $\alpha$-Fe$_2$O$_3$ nano-needles in the interspace. These $\alpha$-Fe$_2$O$_3$ decorated TiO$_2$…

Applied Physics · Physics 2020-04-30 Selda Ozkan , Gihoon Cha , Anca Mazare , Patrik Schmuki

Current supercapacitors present several distinct limitations that severely inhibit the efficiency, power, and electrical capacitance of energy storage devices. Supercapacitors present an exciting prospect that has countless applications in…

Materials Science · Physics 2016-06-03 Sydney Marler

Heterostructures constructed from two-dimensional building blocks have shown promise for field-effect transistors, memory devices, photosensors and other electronic applications1,2. 2D nanosheet crystals can be constructed into multilayer…

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

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

In the present work we introduce a path to the controlled construction of DSSCs based on hierarchically structured single walled, self-organized TiO2 layers. In a first step we describe a simple approach to selectively remove the inner…

Materials Science · Physics 2016-10-25 Seulgi So , Imgon Hwang , Patrik Schmuki

Nanoporous structures play a promising role in the development of nanomechanical, nanoelectrical and biosensing devices. In addition, nanopores can be utilized as chemical and gas sensors. TiO2 is a semiconductor material, which can have a…

Materials Science · Physics 2012-07-30 Subhasish Chatterjee , Miriam Ginzberg , Bonnie Gersten

In the present work we grow anodic TiO$_2$ nanotube layer with tube diameter ~ 500 nm and an open tube mouth. We use this morphology in dye-sensitized solar cells (DSSCs) and show that these tubes allow the construction of hybrid…

Applied Physics · Physics 2020-05-05 Abdelhamid Elzarka , Ning Liu , Imgon Hwang , Mustafa Kamal , Patrik Schmuki

We report on how to grow and control self-organized TiO2 nanotube arrays that show defined and regular gaps between individual nanotubes. For this we use electrochemical anodization of titanium in fluoride containing di-ethylene glycol…

Materials Science · Physics 2016-10-14 Selda Ozkan , Nhat Truong Nguyen , Anca Mazare , Patrik Schmuki

Au nanoparticles at the TiO$_2$ surface can enhance the photocatalytic H$_2$ generation performances owing to their electron transfer co-catalytic ability. Key to maximize the co-catalytic effect is a fine control over Au nanoparticle size…

Applied Physics · Physics 2020-06-05 Seyedsina Hejazi , Marco Altomare , Shiva Mohajernia , Patrik Schmuki

NiCo2O4 of varying nanostrucutures ranging from nanowires, nanoplates to nano-plates@nanowires were successfully grown on microporous (MP) Ni foams via one-step hydrothermal process. The investigation of electrochemical capacitance favors…

Materials Science · Physics 2016-04-05 Qin Guo , Mengjie Xu , Rongjun Xu , Ying Zhao , Boyun Huang

In this work, we design a TiO2 nanomembrane (TiNM) that can be used as a nanofilter platform for a selective enrichment of specific proteins. After use the photocatalytic properties of TiO2 allow to decompose unwanted remnant on the…

Materials Science · Physics 2016-10-21 Jingwen Xu , Lingling Yang , Yuyao Han , Yongmei Wang , Xuemei Zhou , Zhida Gao , Yan-Yan Song , Patrik Schmuki

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

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

Supercapacitors or ultracapacitors are promising for efficient energy storage applications, owing to their high power density, high charge-discharge rates, and long cycle life performance. To achieve this goal, a large specific surface…

Materials Science · Physics 2019-10-10 Qingqing Ke , Cao Guan , Xiao Zhang , Minrui Zheng , Yong-Wei Zhang , Yongqing Cai , Hua Zhang , John Wang

In the present work we investigate the photocatalytic hydrogen production (water splitting) activity of different Pt loaded TiO2 nanotube layers. Therefore, we fabricate free standing membranes and fix them in four different configurations:…

Materials Science · Physics 2016-10-14 Gihoon Cha , Kiyoung Lee , JeongEun Yoo , Manuela S. Killian , Patrik Schmuki

In the present work we explore the front- and back-side performance of a photocatalytic platform consisting of self-organized TiO2 nanotube layers formed by complete anodization of Ti metal films evaporated on quartz slides. The adhesion…

Low-dose nitrogen implantation induces in TiO2 nanotubes a co-catalytic activity for photocatalytic H2-evolution. The use of an ion implantation process leads to a N-implanted zone only at the top part of the tubes. The coupling of this top…

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