نتایج جستجو برای: hybrid nanocomposites

تعداد نتایج: 205093  

2016
Kapil Kandel Stacey Marie Althaus Marek Pruski Igor I. Slowing Stacey M. Althaus

A bicatalytic system was prepared by the immobilization of alcohol oxidase enzyme and an alkylamine organocatalyst in distinct locations of mesoporous nanoparticles. The resulting nanocomposites were able to perform a sequence of oxidation and aldol coupling reactions, which transformed short chain alcohols into longer chain molecules. The process takes place at low temperatures, but requires a...

Journal: :Faraday discussions 2003
Jae Youn Lee Russell B Thompson David Jasnow Anna C Balazs

Using theoretical models, we undertake the first investigation into the synergy and rich phase behavior that emerges when binary particle mixtures are blended with microphase-separating copolymers. We isolate an example of spontaneous hierarchical self-assembly in such hybrid materials, where the system exhibits both nanoscopic ordering of the particles and macroscopic phase transformation in t...

Journal: :Soft matter 2014
Liying Zhang Haolong Li Lixin Wu

The block copolymers (BCs), as structure-directing agents, co-assembling with nanoscale inorganic additives is an important route to fabricate nanostructured hybrid materials. In this work, we present a facile approach to fabricate hybrid micelles composed of BCs and polyoxometalates (POMs), in which the POM clusters are premodified with the groups that can specifically interact with a certain ...

2012
Ryan Pate Adrienne D. Stiff-Roberts

This article investigates hole transport in poly[2-methoxy-5-(2'-ethyl-hexyloxy)1,4-phenylene vinylene] (MEH-PPV)/CdSe colloidal quantum dot (CQD) nanocomposites using a modified time-of-flight photoconductivity technique. The measured hole drift mobilities are analyzed in the context of Bässler’s Gaussian disorder model and the correlated disorder model in order to determine the polymer intern...

2015
Youhui Lin Li Wu Yanyan Huang Jinsong Ren Xiaogang Qu

Here, for the first time, a hybrid catalyst in which hemin and gold nanoparticles are positioned in spatially separate domains within a graphene–mesoporous silica support is presented. Specifically, monomeric hemin can be anchored on the inner exposed graphene surface of a graphene–mesoporous silica hybrid (GS) via p–p stacking interactions. After the assembly, such nanocomposites can function ...

Journal: :Nature nanotechnology 2010
Kyoung-Yong Chun Youngseok Oh Jonghyun Rho Jong-Hyun Ahn Young-Jin Kim Hyouk Ryeol Choi Seunghyun Baik

Conductive films that are both stretchable and flexible could have applications in electronic devices, sensors, actuators and speakers. A substantial amount of research has been carried out on conductive polymer composites, metal electrode-integrated rubber substrates and materials based on carbon nanotubes and graphene. Here we present highly conductive, printable and stretchable hybrid compos...

2014
Mariusz Oleksy Karolina Szwarc-Rzepka Maciej Heneczkowski Rafał Oliwa Teofil Jesionowski

A study was carried out involving the filling of epoxy resin (EP) with bentonites and silica modified with polyhedral oligomeric silsesquioxane (POSS). The method of homogenization and the type of filler affect the functional and canceling properties of the composites was determined. The filler content ranged from 1.5% to 4.5% by mass. The basic mechanical properties of the hybrid composites we...

2010
Brigitte Zimmerli Matthias Strub Franziska Jeger Oliver Stadler Adrian Lussi

After the establishment of composite as a restorative material, there was an attempt to categorise the different composite types according to filler size (Lutz & Philips 1983). This classification does not do justice to today’s composites, since most of the composite materials belong to the nanocomposites, nano-filled composites, nano-filled hybrid composites or micro-hybrid composites. Althoug...

2016
Jialiang Li Xinning Fu Zhou Mao Yushi Yang Tong Qiu Qingzhi Wu

A series of PtM (M=Co, Ni)/reduced graphene oxide (rG-O) nanocomposites were successfully synthesized through a facile hydrothermal method. The as-synthesized nanocomposites were characterized using transmission electron microscopy and high-resolution transmission electron microscopy, X-ray diffraction, inductively coupled plasma-atomic emission spectrometer, and X-ray photoelectron spectroscop...

2008
Hongping Zhao Ronald A. Arif Nelson Tansu

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