نتایج جستجو برای: low temperature solvothermal method

تعداد نتایج: 2980544  

Journal: :Molecules 2016
Fernando Vaquero José Luis G Fierro Rufino M Navarro Yerga

The effect of temperature and water/thiourea ratio on the growth, crystallinity and morphological characteristics of CdS nanostructures synthetized by a solvothermal method using ethylenediamine as solvent were studied. The temperature and water/thiourea ratio used in the synthesis determine the surface area, shape, length and degree of crystallinity of the CdS nanostructures obtained. Nanowire...

Journal: :international journal of nanoscience and nanotechnology 2015
a. dahmardeh a. m. davarpanah

using fe(no3)3.9h2o, co(no3)2.6h2o and mn(no3)2.4h2o the magnetic properties of nanoparticles trimetalic iron - cobalt - manganese, with supported magnesium oxide have been prepared by co-precipitation and solvothermal methods. the prepared samples are characterized by scanning electron microscope (sem), x-ray diffraction (xrd), vibrating sample magnetometer (vsm) and brunaer-emmett-teller (bet...

2012
Jinsub Lim Sung-Won Kang Jieh Moon Sungjin Kim Hyosun Park Joseph Paul Baboo Jaekook Kim

LiFePO4 nanocrystals were synthesized at a very low temperature of 170°C using carbon nanoparticles by a solvothermal process in a polyol medium, namely diethylene glycol without any heat treatment as a post procedure. The powder X-ray diffraction pattern of the LiFePO4 was indexed well to a pure orthorhombic system of olivine structure (space group: Pnma) with no undesirable impurities. The Li...

Journal: :Comptes Rendus Chimie 2021

Highly crystalline ZnO nanoparticles with a pure phase and raspberry-like structure were synthesized using three different techniques (glycol-solvothermal, low-temperature solvothermal, coprecipitation methods). Physisorption analysis field emission scanning electron microscopy confirmed the large specific surface area of mesoporous–macroporous due to interstices aggregated agglomerated seconda...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده علوم 1391

nanotechnology is a general term which is related with field of all advanced science term that generally predicates with all modern technologies which consider nanoscales. improvement in the quality of products by adding some nanoparticles and study of their behavior in the presence of these nanoparticles have been obtained in many researches. on the other hand numerous demands for sowing ...

2016
Jinwang Li Peixin Zhu Daisuke Hirose Shinji Kohara Tatsuya Shimoda

In the solution processing of oxide electronics, the structure of metal-organic precursors in solution and their effect on processability and on the final structure and properties of the oxide have rarely been studied. We have observed that hybrid clusters, having inorganic cores coordinated by organic ligands, are the typical form of metal-organic precursor structures. For insulating ternary L...

Journal: :Dalton transactions 2014
Biplab K Chatterjee Kaustav Bhattacharjee Abhishek Dey Chandan K Ghosh Kalyan K Chattopadhyay

The magnetic properties of copper ferrite (CuFe2O4) nanoparticles prepared via sol-gel auto combustion and facile solvothermal method are studied focusing on the effect of nanoparticle arrangement. Randomly oriented CuFe2O4 nanoparticles (NP) are obtained from the sol-gel auto combustion method, while the solvothermal method allows us to prepare iso-oriented uniform spherical ensembles of CuFe2...

Journal: :Chemical communications 2014
Padmini Ramaswamy Ryotaro Matsuda Wataru Kosaka George Akiyama Hyung Joon Jeon Susumu Kitagawa

Three new sulfonated porous coordination polymers (PCPs)/metal-organic frameworks (MOFs) have been synthesized using solvothermal methods. These PCPs possess porous structures with non-coordinating sulfonic acid groups or sulfonate with dimethyl ammonium cations and exhibit high proton conductivity at a low humidity of 60% RH (relative humidity) at ambient temperature.

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