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A small change in molecular structure, a big difference in the AIEE mechanism

Minmin Cai、Zhiqiang Gao、Xinhui Zhou 等 11 位作者2012-01-01Physical Chemistry Chemical Physics

An anthracene carboxamide derivative of the excited-state intramolecular proton-transfer compound of 2-(2'-hydroxyphenyl)benzothiazole has been newly developed to produce the prominent characteristics of aggregation-induced enhanced emission (AIEE) with a high solid-state fluorescence quantum efficiency of 78.1%. Comp…

Luminescence and Fluorescent MaterialsPhotochemistry and Electron Transfer StudiesOrganic Light-Emitting Diodes Research

Cu2O/ZnO hetero-nanobrush: hierarchical assembly, field emission and photocatalytic properties

Meenal Deo、Deodatta R. Shinde、Ashish Yengantiwar 等 8 位作者2012-01-01Journal of Materials Chemistry

Zinc oxide (ZnO) nanorods are grown hierarchically on cuprous oxide (Cu2O) nanoneedles to form a Cu2O/ZnO hetero-nanobrush assembly. This increases the overall aspect ratio, which helps to enhance the field emission properties of the system. Also, the charge separation and transport are facilitated because of the mult…

Electronic and Structural Properties of OxidesCopper-based nanomaterials and applicationsZnO doping and properties

Sonication induced peptide-appended bolaamphiphile hydrogels for in situ generation and catalytic activity of Pt nanoparticles

Indrajit Maity、Dnyaneshwar B. Rasale、Apurba K. Das2012-01-01Soft Matter

The self-assembly of peptide based bolaamphiphiles is investigated upon sonication. We show the ability of peptide bolaamphiphiles 1 and 2 to form strong and rigid self-supporting hydrogels under physiological conditions upon sonication. The self-assembly of higher order supramolecular structures occurs through a syne…

Polydiacetylene-based materials and applicationsSupramolecular Self-Assembly in MaterialsChemical Synthesis and Analysis

Relation of transverse air permeability with physical properties in different compositions of sugarcane bagasse particleboards

Lina Bufalino、Lourival Marin Mendes、Gustavo Henrique Denzin Tonoli 等 6 位作者2012-01-01Materials Research

Studies concerning the production of particleboards with sugarcane bagasse as an alternative fibrous material have been carried out as an attempt to provide a sustainable and viable destination for this residue. This work aimed to evaluate the influence of several processing variables related to the microstructure of…

Photoinduced superhydrophilicity of TiO2 thin film with hierarchical Cu doping

Zhifeng Liu, Yun Wang, Xinli Peng, Yabin Li, Zhichao Liu, Chengcheng Liu, Jing Ya and Yizhong Huang2012-01-01Science and Technology of Advanced Materials

Hydrophilic Cu–TiO2 thin films with a gradient in the Cu concentration were prepared on glass by layer-by-layer dip-coating from TiO2 precursors. The effects of the Cu doping on the structure and properties of TiO2 self-cleaning thin films are discussed. The Cu gradient markedly affects the hydrophilicity of the films…

One-step route to a hybrid TiO2/TixW1−xN nanocomposite by in situ selective carbothermal nitridation

Zoë Schnepp, Martin J Hollamby, Masahiko Tanaka, Yoshitaka Matsushita, Yoshio Katsuya and Yoshio Sakka2012-01-01Science and Technology of Advanced Materials

Metal oxide/nitride nanocomposites have many existing and potential applications, e.g. in energy conversion or ammonia synthesis. Here, a hybrid oxide/nitride nanocomposite (anatase/TixW1−xN) was synthesized by an ammonia-free sol–gel route. Synchrotron x-ray diffraction, complemented with electron microscopy and ther…

Application of Resonant Nuclear Reactions for Studying the Diffusion of Nitrogen and Silicon in Ti-Modified Stainless Steel

J. Arunkumar、C. David、K. G. M. Nair 等 5 位作者2012-01-01Advances in Materials Science and Engineering

Resonant nuclear reaction analysis can be used for the study of diffusion behaviour of minor alloying elements in reactor structural materials. In the present paper, 15N(p,αγ)12C and 30Si(p,γ)31P reactions have been used to profile the ion-implanted 15N and 30Si in D9 alloy (titanium-modified austenitic stainless stee…

Study of Ruthenium Complex Sensitizer and Gold Nanoparticles Doped Flexible Organic Solar Cells

Cheng-Chiang Chen、Lung-Chien Chen2012-01-01Advances in Materials Science and Engineering

This work presents a flexible organic solar cell with a structure for ITO/PEDOT:PSS/P3HT:PCBM+ruthenium complex sensitizer and Au nanoparticles on a flexible substrate. The process and thickness of the PEDOT:PSS hole transport layer and P3HT:PCBM active layer were optimized. A ruthenium complex sensitizer and Au nanop…

Photocatalytic Degradation of Dichlorvos in Visible Light by Mg2+-TiO2 Nanocatalyst

T. Siva Rao、Teshome Abdo Segne、T. Susmitha 等 5 位作者2012-01-01Advances in Materials Science and Engineering

Photocatalytic activity of TiO2 was studied by doping with magnesium (Mg2+-TiO2) with varying magnesium weight percentages ranging from 0.75–1.5 wt%. The doped and undoped samples were synthesized by sol-gel method and characterized by X-ray diffraction (XRD), N2 adsorption-desorption (BET), X-ray photoelectron spectr…

Combustion Synthesis of Fe-Incorporated SnO2 Nanoparticles Using Organometallic Precursor Combination

Thomas K. Barkley、Jenna E. Vastano、James R. Applegate 等 4 位作者2012-01-01Advances in Materials Science and Engineering

Synthesis of nanomaterials within flames has been demonstrated as a highly scalable and versatile approach for obtaining a variety of nanoparticles with respect to their chemistry, composition, size, morphology, and dimensionality. Its applicability can be amplified by exploring new material systems and providing furt…

Application of PEI-Modified Magnetic Nanoparticles as Gene Transfer Vector for the Genetic Modification of Animals

Jinhui Cui、Haixin Cui、Yan Wang 等 7 位作者2012-01-01Advances in Materials Science and Engineering

To evaluate the performance of the magnetic nanoparticles as gene transfer vector for breeding transgenic animals, we investigated a new approach to deliver green fluorescent protein (GFP) gene to porcine kidney 15 (PK-15) and porcine embryonic fibroblast (PEF) cells using PEI-modified magnetic nanoparticles as gene v…

Enhancement of Efficiency and Lifetime of Blue Organic Light-Emitting Diodes Using Two Dopants in Single Emitting Layer

Jianning Yu、Na Wei、Chong Li 等 8 位作者2012-01-01Advances in Materials Science and Engineering

We have demonstrated efficient blue organic light-emitting diode with the structure of indium tin oxide/4,4′,4″-tris(N-(2-naphthyl)-N-phenyl-amino)triphenylamine/1,4-bis[N-(1-naphthyl)-N′-phenylamino]-4,4′-diamine/9,10-di(2-naphthyl)anthracene (ADN): 1-4-di-[4-(N,N-di-phenyl)amino]styryl-benzene (DSA-ph) 3 wt%/tris-(8…

The Effect of Ultrasonic Treatment on Thermal Stability of the Cured Epoxy/Layered Silicate Nanocomposite

N. Y. Yuhana、S. Ahmad、A. R. Shamsul Bahri2012-01-01Advances in Materials Science and Engineering

The effect of ultrasonic treatment on thermal stability of binary systems containing epoxy and organic chemically modified montmorillonite (Cloisite 30B) was studied. Differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA), transmission electron microscopy (TEM), and wide angle X-ray diffraction (W…

Experimental Research on Fire Resistance of Reactive Powder Concrete

Gai-Fei Peng、Yi-Rong Kang、Yan-Zhu Huang 等 5 位作者2012-01-01Advances in Materials Science and Engineering

An experimental investigation was conducted on fire resistance of reactive powder concrete (RPC), mainly on explosive spalling occurrence and residual mechanical properties exposed to high temperature. The residual mechanical properties measured include compressive strength, tensile splitting strength, and fracture en…

Crystallisation Kinetics of a β-Spodumene-Based Glass Ceramic

Oscar Rubem Klegues Montedo、Dachamir Hotza、Antonio Pedro Novaes de Oliveira 等 6 位作者2012-01-01Advances in Materials Science and Engineering

LZSA (Li2O-ZrO2-SiO2-Al2O3) glass ceramic system has shown high potential to obtain LTCC laminate tapes at low sintering temperature (<1000°C) for several applications, such as screen-printed electronic components. Furthermore, LZSA glass ceramics offer interesting mechanical, chemical, and thermal properties, which m…

Effects of Aging Temperature on Moisture Absorption of Perforated GFRP

Shiva Eslami、Fathollah Taheri-Behrooz、Farid Taheri2012-01-01Advances in Materials Science and Engineering

This paper examines the effects of aging on the flexural stiffness and bending loading capacity of a perforated glass fiber-reinforced epoxy composite subjected to combined moisture and elevated temperature. Specimens, in the configuration of one-quarter of a perforated GFRP tube, were aged in 60% humidity and tempera…

Structural and Phase Transformations in Water-Vapour-Plasma-Treated Hydrophilic TiO2 Films

L. Pranevicius、M. Urbonavicius、S. Tuckute 等 7 位作者2012-01-01Advances in Materials Science and Engineering

We have investigated structural and phase transformations in water-vapor-plasma-treated 200–300 nm thick Ti films, maintained at room temperature, by injecting water vapor into radio frequency (RF) plasma at different processing powers. Scanning electron microscopy (SEM) combined with optical microscopy and surface na…

High Spatial Resolution Time-of-Flight Secondary Ion Mass Spectrometry for the Masses: A Novel Orthogonal ToF FIB-SIMS Instrument with In Situ AFM

James A. Whitby、Fredrik Östlund、Peter Horvath 等 12 位作者2012-01-01Advances in Materials Science and Engineering

We describe the design and performance of an orthogonal time-of-flight (TOF) secondary ion mass spectrometer that can be retrofitted to existing focused ion beam (FIB) instruments. In particular, a simple interface has been developed for FIB/SEM instruments from the manufacturer Tescan. Orthogonal extraction to the ma…

Fourier Transform Infrared Radiation Spectroscopy Applied for Wood Rot Decay and Mould Fungi Growth Detection

Bjørn Petter Jelle、Per Jostein Hovde2012-01-01Advances in Materials Science and Engineering

Material characterization may be carried out by the attenuated total reflectance (ATR) Fourier transform infrared (FTIR) radiation spectroscopical technique, which represents a powerful experimental tool. The ATR technique may be applied on both solid state materials, liquids, and gases with none or only minor sample…