نتایج جستجو برای: core shell structure

تعداد نتایج: 1778493  

Journal: :ACS applied materials & interfaces 2014
Jinyan Xiong Zhen Li Jun Chen Shanqing Zhang Lianzhou Wang Shixue Dou

A novel class of one-dimensional (1D) plasmonic Ag@Cu2O core-shell heteronanowires have been synthesized at room temperature for photocatalysis application. The morphology, size, crystal structure and composition of the products were investigated by XRD, SEM, TEM, XPS, and UV-vis instruments. It was found the reaction time and the amount of Ag nanowires play crucial roles in the formation of we...

Journal: :Nanoscale 2014
Himani Chauhan Yogesh Kumar Sasanka Deka

A new strategy for the synthesis of fluorescent monodispersed 2-dimensional (2D) CdSe/CdS core/shell hexagonal platelet nanocrystals has been demonstrated. Because of the stronger affinity of the -NH2 group of oleylamine to the (0001Se) facet comprising three dangling bonds in CdSe seeds, oleylamine acts as the sole surfactant responsible for hindering the growth of the CdS shell in the 0001 an...

2012
Ruiqing Liu Ning Li Guofeng Xia Deyu Li Chen Wang Ning Xiao Dong Tian Gang Wu

SnO2 microspheres with controllable morphology were prepared via a hydrothermal-annealing method. The SnO2 morphology can be tuned by using AlOOH sol and g-Al2O3 as additive. The hollow SnO2 microspheres with incomplete core-shell structure prepared with small amount of g-Al2O3 presented the best cycling performance in Li-ion battery, exhibiting a specific capacity of 374.2 mAh g 1 up to 100 cy...

Journal: :International journal of pharmaceutics 2017
Zeynep Aytac Tamer Uyar

Core-shell nanofibers were designed via electrospinning using inclusion complex (IC) of model hydrophobic drug (curcumin, CUR) with cyclodextrin (CD) in the core and polymer (polylactic acid, PLA) in the shell (cCUR/HPβCD-IC-sPLA-NF). CD-IC of CUR and HPβCD was formed at 1:2 molar ratio. The successful formation of core-shell nanofibers was revealed by TEM and CLSM images. cCUR/HPβCD-IC-sPLA-NF...

Journal: :ACS applied materials & interfaces 2014
Sehee Jeong Minhyeok Choe Jang-Won Kang Min Woo Kim Wan Gil Jung Young-Chul Leem Jaeyi Chun Bong-Joong Kim Seong-Ju Park

We report the electrical and optical properties of ZnO/ZnS core/shell nanowire (NW) devices. The spatial separation of charge carriers due to their type II band structure together with passivation effect on ZnO/ZnS core/shell NWs not only enhanced their charge carrier transport characteristics by confining the electrons and reducing surface states in the ZnO channel but also increased the photo...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2005
Joseph M Fedeyko Dionisios G Vlachos Raul F Lobo

The phase behavior of silica solutions containing organic and inorganic cations was studied at room temperature using conductivity, pH, and small-angle scattering experiments. A critical aggregation concentration (cac) was observed at approximately 1:1 ratio of SiO(2)/OH(-) for all cation solutions from conductivity and pH studies. From this cac, a phase diagram of the system was developed with...

Journal: :Nanotechnology 2010
Hsu-Shen Wang Shih-Yung Chen Ming-Hsin Su Yuh-Lin Wang Kung-Hwa Wei

We have fabricated inverted heterojunction solar cell devices incorporating [6,6]-phenyl-C(61)-butyric acid methyl ester/poly(3-hexylthiophene) core/shell nanorod arrays by using an anodic alumina oxide template. The internal quantum efficiencies and external quantum efficiencies of these core/shell nanorod inverted solar cells were higher than those of the corresponding conventional inverted b...

2013
Jian Kang Rongfang Wang Hui Wang Shijun Liao Julian Key Vladimir Linkov Shan Ji

Methanol oxidation catalysts comprising an outer Pt-shell with an inner Ni-core supported on carbon, (Pt-Ni/C), were prepared with either crystalline or amorphous Ni core structures. Structural comparisons of the two forms of catalyst were made using transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), and methanol oxidation activity compar...

امام دوست, عاطفه, فرجامی شایسته, صابر, مرندی, مازیار ,

In this research, CdS nanoparticles and core/shell CdS/ZnS nanoparticles were prepared by using aqueous solution method and used 3-mercaptopropionic acid (MPA) as capping molecule. The effect of ZnS shell on optical and structural properties of CdS was investigated. X ray diffraction patterns of CdS nanoparticles at the room temperature and after heat treatment show zinc blende structure. X ray...

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