نتایج جستجو برای: combustion irradiation technique sol

تعداد نتایج: 715320  

Journal: :international journal of nano dimension 0
n. assi department of chemistry, science and research branch, islamic azad university, tehran, iran. a. a. mehrdad sharif department of chemistry, faculty of chemistry, north tehran branch, islamic azad university, tehran, iran. q. s. manuchehri naeini department of chemistry, faculty of chemistry, north tehran branch, islamic azad university, tehran, iran.

zno and zro2 photo catalysts were synthesized by sol-gel auto combustion method. the products were characterized by x-ray diffraction (xrd) and scanning electron microscopy (sem). structural and morphological properties of nano particles were investigated and the average crystalline size of zno and zro2 was obtained 44 and 51 nm, respectively. also, photo catalytic degradation of nitro phenol f...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Xinge Yu Jeremy Smith Nanjia Zhou Li Zeng Peijun Guo Yu Xia Ana Alvarez Stefano Aghion Hui Lin Junsheng Yu Robert P H Chang Michael J Bedzyk Rafael Ferragut Tobin J Marks Antonio Facchetti

Metal-oxide (MO) semiconductors have emerged as enabling materials for next generation thin-film electronics owing to their high carrier mobilities, even in the amorphous state, large-area uniformity, low cost, and optical transparency, which are applicable to flat-panel displays, flexible circuitry, and photovoltaic cells. Impressive progress in solution-processed MO electronics has been achie...

A. A. Mehrdad Sharif N. Assi, Q. S. Manuchehri Naeini

ZnO and ZrO2 photo catalysts were synthesized by sol-gel auto combustion method. The products were characterized by X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). Structural and morphological properties of nano particles were investigated and the average crystalline size of ZnO and ZrO2 was obtained 44 and 51 nm, respectively. Also, photo catalytic degrada...

Journal: :international journal of nano dimension 0
s. khorrami department of chemistry, north tehran branch, islamic azad university, tehran, iran. f. gharib department of chemistry,shahid beheshti university,tehran, iran. g. mahmoudzadeh department of chemistry, north tehran branch, islamic azad university, tehran, iran. s. sadat sepehr department of chemistry, north tehran branch, islamic azad university, tehran, iran. s. sadat madani department of chemistry, north tehran branch, islamic azad university, tehran, iran. n. naderfar department of chemistry, north tehran branch, islamic azad university, tehran, iran. s. manie

sol–gel auto-combustion is a unique combination of the combustion and the chemical gelation processes. in this work, nanosize (d) powders with compositions of znfe2o4 were synthesized by sol–gel combustion method. the puffy, porous brown powders as-combusted was calcined at the temperature of 750–1000◦c for 4 h. these powders are characterized by x-ray diffraction and scanning electron microsco...

2015
V. S. Bushkova

It is well known that in recent years magnetic materials have received increased attention due to their properties. For this reason a significant number of patents that were published during the last decade are oriented towards synthesis and study of such materials. The aim of this work is to create and study ferrite nanocrystalline materials with spinel structure, using sol-gel technology with...

Calcium doped nickel ferrite powders have been prepared by sol-gel combustion technique. Metal nitrates, such as calcium nitrate, nickel nitrate and ferric nitrate, were used as the source materials and citric acid and polyvinyl alcohol were used as the burning agent and agglomeration reducing agent, respectively. The average crystallite size of the prepared ferrite was in the order of ~70- 92 ...

Calcium doped nickel ferrite powders have been prepared by sol-gel combustion technique. Metal nitrates, such as calcium nitrate, nickel nitrate and ferric nitrate, were used as the source materials and citric acid and polyvinyl alcohol were used as the burning agent and agglomeration reducing agent, respectively. The average crystallite size of the prepared ferrite was in the order of ~70- 92 ...

2014
M. Ghobeiti - Hasab

Magnetic powder of Sr-ferrite was prepared by conventional and sol-gel auto-combustion methods. In conventional method, strontium carbonate and ferric oxide powders were mixed together and then mixture was calcined. In sol-gel auto-combustion method, a solution containing strontium nitrate, ferric nitrate and citric acid was heated until the combustion took place automatically; then, as-burnt p...

A. A. Mehrdad Sharif N. Assi, Q. S. Manuchehri Naeini

ZnO and ZrO2 photo catalysts were synthesized by sol-gel auto combustion method. The products were characterized by X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). Structural and morphological properties of nano particles were investigated and the average crystalline size of ZnO and ZrO2 was obtained 44 and 51 nm, respectively. Also, photo catalytic degrada...

Journal: :international journal of nano dimension 0
n. assi 1department of chemistry, science and research branch, islamic azad university, tehran, iran a.a. mehrdad sharif department of chemistry, faculty of chemistry, north tehran branch, islamic azad university, tehran, iran h. bakhtiari department of chemistry, faculty of chemistry, north tehran branch, islamic azad university, tehran, iran q. s. manuchehri naeini department of chemistry, faculty of chemistry, north tehran branch, islamic azad university, tehran, iran

zno and mn-zno nano powders were prepared by the sol-gel auto combustion method. the products were characterized by x-ray diffraction (xrd), energy dispersive analysis of x-ray (edx) and scanning electron microscopy (sem). structural and morphological properties of nano particles were investigated and the average crystalline size of zno and mn-doped zno was obtained 44 and 51 nm, respectively. ...

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