نتایج جستجو برای: microwave polyol

تعداد نتایج: 52518  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2004
Isao Kadota Yueqing Hu Garrick K Packard Scott D Rychnovsky

Polyene macrolide antibiotics are naturally occurring antifungal agents. Members of this class include amphotericin B, which has been used widely to treat systemic fungal infections. A general synthetic strategy has been devised to prepare polyol chains associated with the polyene macrolides. Cyanohydrin acetonide alkylations were used to assemble the carbon skeleton, and a simple modification ...

2011
Sudong Yang Chengmin Shen Yanyu Liang Hao Tong Wei He Xuezhao Shi Xiaogang Zhang Hong-jun Gao

A novel electrode material based on graphene oxide (GO)-polypyrrole (PPy) composites was synthesized by in situ chemical oxidation polymerization. Palladium nanoparticles (NPs) with a diameter of 4.0 nm were loaded on the reduced graphene oxide(RGO)-PPy composites by a microwave-assisted polyol process. Microstructure analysis showed that a layer of coated PPy film with monodisperse Pd NPs is p...

Journal: :ACS applied materials & interfaces 2013
Wei Luo Xianluo Hu Yongming Sun Yunhui Huang

A rapid and controllable route is developed for the synthesis of MnO nanoparticles that are encapsulated uniformly in three-dimensional (3D) mesoporous interconnected carbon networks (MnO-MICN) through an efficient microwave-polyol process, combined with a subsequent thermal treatment. The dependence of sodium citrate on the morphology of the Mn-based precursors was investigated systematically....

Journal: :Carbon energy 2021

In this paper, an extensive characterisation of a range carbon blacks (CB) with similar surface area but different chemistry is carried out by flow calorimetry, Raman spectroscopy, dynamic water vapour sorption, instrumental gas analysis, nitrogen adsorption/desorption and high potential chronoamperometry. Using these materials as supports, Pt/CB electrocatalysts are prepared microwave-assisted...

Journal: :E3S web of conferences 2021

The study aims to develop a full-scale plant produce biobased PU foam from microwave liquefaction of riparian shrubs and evaluate its environmental burden using cradle-to-gate, scaled-up LCA approach. Life Cycle Inventory was built on experimental data for polyol synthesis by Response Surface Methodology (RSM) maximize the yield. Bio-based also compared with petrochemical counterpart. Assessmen...

Journal: :journal of ultrafine grained and nanostructured materials 2014
mahdi ghazanfari fatemeh johar ahmad yazdani

this paper is a report on the synthesis of the fe3o4@ag core-shell with high saturation magnetization of magnetite nanoparticles as the core, by using polyol route and silver shell by chemical reduction. x-ray diffraction (xrd) and fourier transform infrared spectroscopy analyses confirmed that the particles so produced were monophase. the magnetic properties of the product were investigated by...

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