نتایج جستجو برای: octadecane functionalized graphene od g

تعداد نتایج: 519213  

Journal: :Science China. Materials 2022

Graphene nanoscrolls with one-dimensional topological structure obtained by Archimedean-type spirals of graphene, inherit the intrinsic properties pristine graphene. They have some unique advantages, including open edges/ends, adjustable internal volume, and diameter. Notably, accommodation functionalized components in their interlayer is potentially a fantastic strategy to promote epoch-making...

2016
Haoxue Han Yong Zhang Nan Wang Majid Kabiri Samani Yuxiang Ni Zainelabideen Y Mijbil Michael Edwards Shiyun Xiong Kimmo Sääskilahti Murali Murugesan Yifeng Fu Lilei Ye Hatef Sadeghi Steven Bailey Yuriy A Kosevich Colin J Lambert Johan Liu Sebastian Volz

The high thermal conductivity of graphene and few-layer graphene undergoes severe degradations through contact with the substrate. Here we show experimentally that the thermal management of a micro heater is substantially improved by introducing alternative heat-escaping channels into a graphene-based film bonded to functionalized graphene oxide through amino-silane molecules. Using a resistanc...

2017
Marco A Marcos David Cabaleiro María J G Guimarey María J P Comuñas Laura Fedele Josefa Fernández Luis Lugo

This study presents new Nano-enhanced Phase Change Materials, NePCMs, formulated as dispersions of functionalized graphene nanoplatelets in a poly(ethylene glycol) with a mass-average molecular mass of 400 g·mol-1 for possible use in Thermal Energy Storage. Morphology, functionalization, purity, molecular mass and thermal stability of the graphene nanomaterial and/or the poly(ethylene glycol) w...

Journal: :Journal of the American Chemical Society 2011
Rong Kou Yuyan Shao Donghai Mei Zimin Nie Donghai Wang Chongmin Wang Vilayanur V Viswanathan Sehkyu Park Ilhan A Aksay Yuehe Lin Yong Wang Jun Liu

Carbon-supported precious metal catalysts are widely used in heterogeneous catalysis and electrocatalysis, and enhancement of catalyst dispersion and stability by controlling the interfacial structure is highly desired. Here we report a new method to deposit metal oxides and metal nanoparticles on graphene and form stable metal-metal oxide-graphene triple junctions for electrocatalysis applicat...

2015
Dae Sung Kim Vivek Dhand Kyong Yop Rhee Soo-Jin Park Joong Hee Lee

In the present study, silane-functionalized graphene (f-graphene)-reinforced chitosan nanocomposite films exhibiting enhanced mechanical properties have been prepared by the solution casting method. These nanocomposite films were characterized by X-ray diffraction, Raman spectroscopy and thermogravimetric analysis. In order to investigate the effect of silane functionalization, tensile tests we...

2013
Malgorzata Wojtoniszak Dorota Rogińska Magdalena Perużyńska Mateusz Kurzawski Marek Droździk Bogusław Machaliński Ewa Mijowska H. Park J. A. Rowehl K. K. Kim V. Bulovic G. Zhao C. Liu Y. Wang J. Sun Y. Gu Z. Zeng

Recently, graphene has attracted a great scientific interest in many fields such as electronics, gas storage, catalysis, and medicine among others [1-4]. Because of its electronic, optical and structural properties it has been explored as a carrier of variety molecules such as drugs for cancer chemotherapy, ferromagnetic for hyperthermia or photosensitizers for photothermal therapy and photodyn...

2010
Chun-Hua Lu Chun-Ling Zhu Juan Li Jing-Jing Liu Xi Chen Huang-Hao Yang

Genetic engineering holds great promise and opportunities for medicine and biomedical research. For example, RNA interference (RNAi) and antisense (AS) therapies are potentially powerful candidates for clinical treatments of various ailments, including cancer and AIDS. However, these therapeutic oligonucleotides are easily degraded by cellular enzymes or digested by cellular nucleases. Some mea...

Journal: :Nanoscale 2014
Fabrizio Sordello Gul Zeb Kaiwen Hu Paola Calza Claudio Minero Thomas Szkopek Marta Cerruti

We report the hydrothermal synthesis of graphene (GNP)-TiO2 nanoparticle (NP) hybrids using COOH and NH2 functionalized GNP as a shape controller. Anatase was the only TiO2 crystalline phase nucleated on the functionalized GNP, whereas traces of rutile were detected on unfunctionalized GNP. X-Ray Photoelectron spectroscopy (XPS) showed C-Ti bonds on all hybrids, thus confirming heterogeneous nu...

2013
Li Wang Yinjian Ye Xingping Lu Zhubiao Wen Zhuang Li Haoqing Hou Yonghai Song

Here we reported a novel route to synthesize a hierarchical nanocomposite (PANI-frGO) of polyaniline (PANI) nanowire arrays covalently bonded on reduced graphene oxide (rGO). In this strategy, nitrophenyl groups were initially grafted on rGO via C-C bond, and then reduced to aminophenyl to act as anchor sites for the growth of PANI arrays on rGO. The functionalized process was confirmed by atom...

Journal: :Chemical communications 2011
Peipei Zhang Kun Jiang Chunnuan Ye Youliang Zhao

Mid-functionalized ABC triblock copolymers with a short central B block were synthesized via the RAFT process, and further used as well-defined V-shaped copolymers to graft onto graphene oxide by coupling reactions.

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