中文
相关论文

相关论文: H2 Mapping on Pt-loaded TiO2 Nanotube Gradient Arr…

200 篇论文

The efforts in the optimization of the physical and chemical properties related to the photocatalytic efficiency of TiO2 nanoparticles relies mainly on defect engineering strategies, been the structural and the doping the most common ones.…

材料科学 · 物理学 2022-03-07 M. P. Ferreira , H. B. de Carvalho

Here we report on a novel chemical route to synthesize homogenous cobalt doped titanate nanotubes (CoTNT), using an amorphous Co-doped precursor. The influence of the synthesis temperature, autoclave dwell time and metal doping on the…

材料科学 · 物理学 2013-08-27 V. C. Ferreira , M. R. Nunes , A. J. Silvestre , O. C. Monteiro

TiO$_2$ and SrTiO$_3$ are well known materials in the field of photocatalysis due to their exceptional electronic structure, high chemical stability, non-toxicity and low cost. However, owing to the wide band gap, these can be utilized only…

材料科学 · 物理学 2020-09-25 Manish Kumar , Pooja Basera , Shikha Saini , Saswata Bhattacharya

Simultaneous catalytic hydrogen (H2) production and plastic waste degradation under light, known as photoreforming, is a novel approach to green fuel production and efficient waste management. Here, we use a high-entropy oxide (HEO), a new…

材料科学 · 物理学 2024-12-03 Thanh Tam Nguyen , Kaveh Edalati

The photocatalytic production of hydrogen peroxide (H$_2$O$_2$) from water is a promising strategy for solar-to-chemical energy conversion. Herein, we investigate the effect of metal-free heteroatom doping (B, O, P, and S) on the…

Pd nanoalloys show great potential as hysteresis-free, reliable hydrogen sensors. Here, a multi-scale modeling approach is employed to determine optimal conditions for optical hydrogen sensing using the Pd-Au-H system. Changes in hydrogen…

Ti-O nanoparticles have been synthesized via hollow cathode sputtering in an Ar-O2 atmosphere using high power pulsing. It is shown that the stoichiometry and the size of the nanoparticles can be varied independently, the former through…

介观与纳米尺度物理 · 物理学 2018-10-09 Rickard Gunnarsson , Ulf Helmersson , Iris Pilch

Sensing response of individual single-crystal titania nanowires configured as chemiresistors for detecting reducing (CO, H2) and oxidizing (O2) gases is shown to be sensitive to visible light illumination. It is assumed that doping of the…

介观与纳米尺度物理 · 物理学 2015-01-09 Jie Zhang , Evgheni Strelcov , Andrei Kolmakov

A deep learning model is employed to address the challenging problem of V2O5 nanoparticle segmentation and the correlation between the chemical composition and the geometrical features of lithiated V2O5 nanoparticles as an exemplar of a…

Photomultiplier tubes (PMTs) with large-area cathodes are increasingly being used in cosmic-ray experiments to enhance detection efficiency. The optical modules (OMs) of the High-Energy Underwater Neutrino Telescope (HUNT) have employed a…

高能物理 - 实验 · 物理学 2024-08-06 Yijiang Peng , Zike Wang , Bo Gao , Yiyue Tang , Mingjun Chen , Kai Li , Ling Ren , Xiaohao You , Maoyuan Liu

Controlling the interconnection of neighboring seeds (nanoflakes) to full coverage of the textured substrate is the main challenge for the large-scale conformal growth of atomic-thick transition metal dichalcogenides by chemical vapor…

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…

Thin TiO2 films on quartz substrates were prepared by spin coating of undoped and metal-ion-doped Sol Gel precursors. These films were characterised by Scanning Electron Microscopy, Laser Raman Microspectroscopy, Xray Diffraction and UV Vis…

材料科学 · 物理学 2021-06-08 D. A. H. Hanaor , G. Triani , C. C. Sorrell

TiO2 nanoparticles (NPs) are nowadays considered fundamental building blocks for many technological applications. Morphology is found to play a key role with spherical NPs presenting higher binding properties and chemical activity. From the…

材料科学 · 物理学 2017-10-27 Daniele Selli , Gianluca Fazio , Cristiana Di Valentin

Visible light-driven production of fuels and value-added chemicals is currently one of the most intensely investigated research topics across various scientific disciplines, due to its potential to ease the World s dependence on fossil…

化学物理 · 物理学 2023-01-04 Lorenzo Zani , Michele Melchionna , Tiziano Montini , Paolo Fornasiero

Methods for nanoscale material characterization are in ever-increasing demand, especially those that can provide a broader range of information at once. Near-field techniques based on combinations of scanning probe microscopy (SPM) and…

应用物理 · 物理学 2020-11-11 Alvaro Rodriguez , Tim Verhagen , Martin Kalbac , Jana Vejpravova , Otakar Frank

Monolayers of semiconducting transition metal dichalcogenides (TMDs) have long attracted interest for their intriguing optical and electronic properties. Recently TMDs in their quasi-bulk form have started to show considerable promise for…

The 3D nano-structuring on the <10nm scale allows the refractive index of functional sensory materials(n>2) to be reduced and matched with the cladding of optical fiber(n~1.46) for low-loss integration. A high temperature capable hydrogen…

介观与纳米尺度物理 · 物理学 2015-08-05 Zsolt Poole , Paul Ohodnicki , Aidong Yan , Yuankun Lin , Kevin Chen

2D semiconducting nanosheets of Transition Metal Dichalcogenides are attractive materials for solar energy conversion because of their unique absorption properties. Here, we propose Mo thio- and oxo-thio-complexes anchored on 2D p-WSe2…

In this work, we use a double-layered stack of TiO2 nanotubes (TiNTs) to construct a visible-light triggered drug delivery system. Key for visible-light drug release is a hydrophobic cap on the nanotubes containing Au nanoparticles (AuNPs).…

化学物理 · 物理学 2016-11-14 Jingwen Xu , Xuemei Zhou , Zhida Gao , Yan-Yan Song , Patrik Schmuki