نتایج جستجو برای: thermal decomposition process

تعداد نتایج: 1584778  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2011
hui wei liao lan mu min zhen yan yan meng

nano-cufe2o4 catalysts with different cu/fe molar ratios (cunfemo(n+1.5m)) were prepared by hydrothermal method. the thermal decomposition performance of cunfemo(n+1.5m) on cuso4 were determined with tg-dsc method to evaluate its catalytic activity and the roasted product was characterized by xrd. the results showed that cunfemo(n+1.5m) had superior catalytic properties and efficiency to cuso4 ...

Journal: :international journal of nano dimension 0
a. hosseinian department of engineering science, faculty of engineering, university of tehran,tehran, iran. a.r. mahjoub department of chemistry, tarbiat modares university,tehran ,iran m. movahedi department of chemistry, payame noor university, isfahan, iran.

a new tris-chelate cd(ii) complex, [cd(dadmbtz)3](clo3)2 has been successfully synthesized and characterized by ir, 1h, 13c nmr spectroscopy, elemental analysis and single crystal x-ray determination. the thermal behavior, uv-vis and fluorescence spectra of compound were studied. in reaction with dadmbtz, cadmium (ii) forms a tris-chelate complex with nearly c3 symmetry for coordination polyhed...

Journal: :journal of nanostructures 2012
a. dehno khalaji k. jafari s. maghsodlou rad

in this paper, cuo nanoparticles  have been synthesized via solid-state thermal decomposition using copper(ii) schiff base complexes as new precursors at 600ºc under air atmosphere for 3 h. surface morphology of the products were characterized by fourier transform infrared spectroscopy (ft-ir), x-ray diffraction (xrd) and scanning electron microscopy (sem).

ژورنال: مواد پرانرژی 2014
احمدوند, هادی, ایومن, اسماعیل, حسینی, سید قربان, قوی , اعظم ,

In this review, an attempt to collect summarized literature data on catalytic effect of nanosized metal oxides on the thermal decomposition of ammonium perchlorates is made. Several experimental results show nanometal oxides are more effective catalysts as compared to nanosized metals. Nanocatalysts decrease the activation energy and the increase the rate the thermal decomposition of ammonium p...

Journal: :international journal of nano dimension 0
a. a. dehno khalaji department of chemistry, faculty of science, golestan university, gorgan, iran. f. malekan department of chemistry, faculty of science, golestan university, gorgan, iran.

in this study, we synthesis one-dimensional (1d) manganese(iii) schiff base coordination polymer [mn(brsalophen)(μ1,3-n3)]n by reaction of mncl2·6h2o and tetradentate schiff base ligand brsalophen at the presence of nan3 in methanol and characterized by elemental analyses (chn) and ft-ir spectroscopy. it was used as a new precursor to prepare spinel type manganese oxide nanowires by a facile so...

Journal: :journal of nanostructures 2012
m. salavati-niasari s. alikhanzadeh-arani

as a new precursor, [tris(2-hydroxyacetophenato) triaqua(iii)], [y(hap)3(h2o)3]; complex was used in thermal decomposition process for the synthesis of rod-like high-temperature ceramic ybco with length of about 320-350 nm and diameters 60–90 nm. the as-synthesized products were characterized by xrd, ft-ir, tem, sem and edx analyses. the results showed that by using fine raw materials, the calc...

Journal: :Journal of the Society of Materials Science, Japan 1976

Journal: :Physical chemistry chemical physics : PCCP 2013
H Beyer S Meini N Tsiouvaras M Piana H A Gasteiger

The decomposition of lithium peroxide during the charging process of lithium-air batteries is investigated. A novel preparation method for electrodes in the discharged state, i.e., prefilled with Li2O2 using polyethylene oxide as a binder, is presented. The composition and reactivity of Li2O2-prefilled electrodes are examined by thermal analysis coupled with on-line mass spectrometry. Voltage p...

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