Preparation and characterization of Ni/mZSM-5 zeolite with a hierarchical pore structure by using KIT-6 as silica template: an efficient bi-functional catalyst for the reduction of nitro aromatic compounds

RSC Advances ◽  
2015 ◽  
Vol 5 (43) ◽  
pp. 34398-34414 ◽  
Author(s):  
Omid Mazaheri ◽  
Roozbeh Javad Kalbasi
Keyword(s):  
Aromatic Compounds ◽  
Room Temperature ◽  
Hierarchical Zeolite ◽  
Hierarchical Pore Structure ◽  
Excellent Activity ◽  
Acidic Form ◽  
Silica Template ◽  
Hierarchical Pore ◽  
Nitro Aromatic

Ni/mZSM-5 hierarchical zeolite and the acidic form of it were prepared as novel bi-functional catalysts which showed excellent activity for reduction of nitro aromatic compounds in aqueous medium at room temperature.

Synthesis and characterization of SBA-15 macrospheres with hierarchical pore structure

2009 ◽  
Vol 20 (11) ◽  
pp. 1371-1375 ◽  
Author(s):  
Dong Liang ◽  
Yan Wang ◽  
Jing Hong Ma ◽  
Jian Hong Liu ◽  
Shu Wei Chen ◽  
...  
Keyword(s):  
Pore Structure ◽  
Synthesis And Characterization ◽  
Hierarchical Pore Structure ◽  
Hierarchical Pore

Strong room-temperature chemiresistive effect of TiO 2 nanowires to nitro-aromatic compounds

2011 ◽  
Author(s):  
Danling Wang ◽  
Antao Chen ◽  
Qifeng Zhang ◽  
Guozhong Cao
Keyword(s):  
Aromatic Compounds ◽  
Room Temperature ◽  
Nitro Aromatic

Fabrication and characterization of bulk nanoporous Cu with hierarchical pore structure

2017 ◽  
Vol 52 (20) ◽  
pp. 12445-12454 ◽  
Author(s):  
Qingquan Kong ◽  
Wei Feng ◽  
Xiaodong Zhu ◽  
Chenghua Sun ◽  
Juan Ma ◽  
...  
Keyword(s):  
Pore Structure ◽  
Hierarchical Pore Structure ◽  
Fabrication And Characterization ◽  
Hierarchical Pore

Characterization of intergranular cuprous oxide in polycrystalline YBa2Cu3O7-x

1988 ◽  
Vol 46 ◽  
pp. 880-881
Author(s):  
Bradley L. Thiel ◽  
Chan Han R. P. ◽  
Kurosky L. C. Hutter ◽  
I. A. Aksay ◽  
Mehmet Sarikaya
Keyword(s):  
Grain Boundary ◽  
Cuprous Oxide ◽  
Room Temperature ◽  
Boundary Phase ◽  
Spectroscopic Techniques ◽  
Transition Width ◽  
Practical Applications ◽  
Thin Foils ◽  
Superconducting Oxides

The identification of extraneous phases is important in understanding of high Tc superconducting oxides. The spectroscopic techniques commonly used in determining the origin of superconductivity (such as RAMAN, XPS, AES, and EXAFS) are surface-sensitive. Hence a grain boundary phase several nanometers thick could produce irrelevant spectroscopic results and cause erroneous conclusions. The intergranular phases present a major technological consideration for practical applications. In this communication we report the identification of a Cu2O grain boundary phase which forms during the sintering of YBa2Cu3O7-x (1:2:3 compound).Samples are prepared using a mixture of Y2O3. CuO, and BaO2 powders dispersed in ethanol for complete mixing. The pellets pressed at 20,000 psi are heated to 950°C at a rate of 5°C per min, held for 1 hr, and cooled at 1°C per min to room temperature. The samples show a Tc of 91K with a transition width of 2K. In order to prevent damage, a low temperature stage is used in milling to prepare thin foils which are then observed, using a liquid nitrogen holder, in a Philips 430T at 300 kV.

scholarly journals Synthesis and characterization of a new ZIF-67@MgAl2O4 nanocomposite and its adsorption behaviour

RSC Advances ◽  
2021 ◽  
Vol 11 (22) ◽  
pp. 13245-13255
Author(s):  
Mehdi Davoodi ◽  
Fatemeh Davar ◽  
Mohammad R. Rezayat ◽  
Mohammad T. Jafari ◽  
Mehdi Bazarganipour ◽  
...  
Keyword(s):  
Room Temperature ◽  
Magnesium Aluminate ◽  
Synthesis And Characterization ◽  
Magnesium Aluminate Spinel ◽  
Adsorption Behaviour ◽  
Zeolitic Imidazolate Framework ◽  
Simple Method

New nanocomposite of zeolitic imidazolate framework-67@magnesium aluminate spinel (ZIF-67@MgAl2O4) has been fabricated by a simple method at room temperature with different weight ratios.

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