نتایج جستجو برای: nano metal oxides

تعداد نتایج: 259901  

2018
Ibadillah A. Digdaya Bartek J. Trześniewski Gede W. P. Adhyaksa Erik C. Garnett Wilson A. Smith

Metal-insulator-semiconductor (MIS) photoelectrodes offer a simple alternative to the traditional semiconductor-liquid junction and the conventional p-n junction electrode. Highly efficient MIS photoanodes require interfacial surface passivating oxides and high workfunction metals to produce a high photovoltage. Herein, we investigate and analyze the effect of interfacial oxides and metal workf...

2016
Shubin Yang Xiangke Wang Dongqi Wang Bunsho Ohtani

of past research 1) The individual and competitive adsorption of metal ions on graphene oxides (GOs) studies by experimental and DFT calculation The heavy metal ions can be accumulated in living tissues, so they must be removed from polluted water. Graphene oxides (GOs) are considered as the ideal adsorbent material because the large quantities of oxygen-containing functional groups strengthen ...

Journal: :Energy Reports 2022

In order to investigate the control mechanism of composite phase change materials (PCM), a series nano-phase emulsion (NPCE) were prepared in this paper with high thermal conductivity, heat storage and low supercooling using hexadecane, octadecane, hexadecanol, octadecanol various metal nano-particles. Through mechanism, it is expected adjust transition range NPCE desirable range. The NPCEs cha...

Journal: :Chemical Society reviews 2014
Alberto Comin Liberato Manna

We present a review on the emerging materials for novel plasmonic colloidal nanocrystals. We start by explaining the basic processes involved in surface plasmon resonances in nanoparticles and then discuss the classes of nanocrystals that to date are particularly promising for tunable plasmonics: non-stoichiometric copper chalcogenides, extrinsically doped metal oxides, oxygen-deficient metal o...

2008
Edward L. Lee Israel E. Wachs

The group 5-7 transition metal oxides (V2O5, CrO3, MoO3, WO3, and Re2O7) were anchored on a surface modified SiO2 support containing surface alumina, zirconia, and titania species prepared via incipient wetness impregnation of soluble precursors and calcination. The molecular and electronic structures of these “multilayered” supported M1Ox/M2Ox/SiO2 catalysts were characterized with in situ Ram...

Journal: :Journal of the Ceramic Society of Japan 2022

The study systematically attempts to synthesize a number of metal oxides using liquid-phase deposition method and hydrolysis reaction fluoride complexes. Instead the conventional empirical optimization, in-solution equilibrium is precisely analyzed desired possessing nano-order structures thin-film geometries are synthesized. By synthesizing with ordered large specific surface areas, materials ...

Journal: :International journal of medical science and clinical research studies 2022

This review paper is about development and evolution of nanocomposites to smart materials. With the idea formulating dental materials with long lasting maintenance functionality, it important incorporate certain features such as polymer nanofibers, natural fibers, clay, nanoclays, metal oxides, carbon nano fillers, metallic particles sulphides different ions. Therefore, helps deal both external...

2010
Jacques Livage

A wide range of vanadium oxides have been obtained via the hydrothermal treatment of aqueous V(V) solutions. They exhibit a large variety of nanostructures ranging from molecular clusters to 1D and 2D layered compounds. Nanotubes are obtained via a self-rolling process while amazing morphologies such as nano-spheres, nano-flowers and even nano-urchins are formed via the self-assembling of nano-...

Journal: :ACS combinatorial science 2015
Rie Saito Yugo Miseki Wang Nini Kazuhiro Sayama

We applied an automated semiconductor synthesis and screen system to discover overcoating film materials and optimize coating conditions on the BiVO4/WO3 composite photoelectrode to enhance stability and photocurrent. Thirteen metallic elements for overcoating oxides were examined with various coating amounts. The stability of the BiVO4/WO3 photoelectrode in a highly concentrated carbonate elec...

2015
S. Trost T. Becker K. Zilberberg A. Behrendt A. Polywka R. Heiderhoff P. Görrn T. Riedl

ZnO and TiOx are commonly used as electron extraction layers (EELs) in organic solar cells (OSCs). A general phenomenon of OSCs incorporating these metal-oxides is the requirement to illuminate the devices with UV light in order to improve device characteristics. This may cause severe problems if UV to VIS down-conversion is applied or if the UV spectral range (λ < 400 nm) is blocked to achieve...

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