@article { author = {Bazvand, Reza and Bahri-Laleh, Naeimeh and Nekoomanesh, Mehdi and Abedini, Hossein and Hanifpour, Ahad}, title = {A new strategy to increase comonomer incorporation in LLDPE synthesis using Ziegler-Natta catalysts}, journal = {Communications In Catalysis}, volume = {1}, number = {1}, pages = {1-10}, year = {2018}, publisher = {Azarbaijan Shahid Madani University}, issn = {2588-5006}, eissn = {}, doi = {10.22049/cic.2018.13736}, abstract = {Effect of FeCl3 and FeCl3/SiCl4-doping on the performance of MgCl2(ethoxide type)/TiCl4/TEAL catalytic system was evaluated in the linear low density polyethylene (LLDPE) synthesis using 1-hexene as the comonomer. Results revealed that FeCl3/SiCl4 modified catalytic system has better performance in terms of catalyst activity and comonomer incorporation when compared with unmodified catalyst or the catalytic system in the presence of FeCl3 alone. In fact, the introduction of FeCl3 doper, in its optimum amount of 10 wt. %, together with SiCl4 induced better catalytic performance with 212 and 90 % increase in catalyst activity and 1-hexene incorporation, respectively. Copolymers characterization showed increased bulk density together with decreased crystallinity and Tm in the polymers from modified catalysts. Overall results showed that, new catalytic system represented in this work, is a good candidate for large scale LLDPE production with high comonomer amount.}, keywords = {LLDPE,modified support,FeCl3,Ziegler-Natta catalyst,1-hexene}, url = {http://cic.azaruniv.ac.ir/article_13736.html}, eprint = {http://cic.azaruniv.ac.ir/article_13736_44050f0fcf8beef21bd7fb5da28ab778.pdf} } @article { author = {Jabbari, Hadi}, title = {Synthesis of Neopenthylglycolesters using homogeneous and heterogeneous catalysts as synthetic lubricant base oils}, journal = {Communications In Catalysis}, volume = {1}, number = {1}, pages = {11-19}, year = {2018}, publisher = {Azarbaijan Shahid Madani University}, issn = {2588-5006}, eissn = {}, doi = {10.22049/cic.2018.13722}, abstract = {The  preparation  of  Neopenthylglycol  (NPG)  esters  via  esterification  reaction  of Neopenthylglycol by carboxylic acid in the presence of solid acidic catalysts has been investigated. The used catalysts were natural zeolite, acidic ion exchange resin   catalyst (polyestyren  divinyl  benzensulfated),  synthetic  zeolites  (ZEOKAR-2,  ASHNCH-3), heteropolyacid H4Si (W3O10)4 , and sulfated metal oxide ZrO2 .The reactions were carried out  under  solvent-less  conditions.  It  was  observed  that  sulfated  ZrO2 has  higher reactivity and efficiency among the investigated catalysts. For this purpose esterification of  ethylenglycol,  trimethylolpropan  using  sulfated  ZrO2 by  carboxylic  acids  has  been nvestigated.}, keywords = {: Esterification,Solid catalyst,Zeolite,Sulfated zirconia,NPG}, url = {http://cic.azaruniv.ac.ir/article_13722.html}, eprint = {http://cic.azaruniv.ac.ir/article_13722_bca153c832bc75b6b3b7678655b4638e.pdf} } @article { author = {Ghian, Hassan and Noroozi, Nader and Jabbari, Hadi}, title = {Using Of Ozonation Method for Filtertion Of Mineral Water}, journal = {Communications In Catalysis}, volume = {1}, number = {1}, pages = {20-31}, year = {2018}, publisher = {Azarbaijan Shahid Madani University}, issn = {2588-5006}, eissn = {}, doi = {10.22049/cic.2018.13718}, abstract = {In  this  reseach,  two  samples  of  mineral  water  found  in  Northern  Mahabad,  west Azarbaigan, with hardnesses  of 36, 42 mg/l (CaCO3) are investigated (.Kanisepi South Region,  and  Minerals  of  the  Tutankhach  Village  Northern  Region).  Then,  different amount of Ozone gas is injected into mineral water and biological and chemical changes  are observed.  The used Ozonator can produce 25 mg Ozone per hour. To determine the  amount  of  Ozone  gas.  We  used  iodometry  method.  By  injection  of  1.25  mg/l  we achieved complete removal of diatomaceae in sample 1 and up to 99 percent in sample  2.  Both  complete  removal  of  chlorophyceae  in  1.1  mg/l  complete  removal  of  BOD 5 sample 1 in 1.1 mg/l Ozone and in sample (2 in 1 mg/l Ozone complete removal).We  had 65 percent reduction of COD by injection of 1.2 mg Ozone for sample 1 and 68 percent for sample 2.Complete disinfection is done  in both samples by injection 0.5 mg per liter.  In this method clean  water is chieved because no  chemical is used and we don’t need to provide chemicals. So, Ozonation can be introducd as the best method for  filtration of water.  DO: Dissolved Oxygen BOD: Biological Oxygen Demand COD: Chemical Oxygen Demand.}, keywords = {Ozonation,Filtration,Disinfection,Mineral water,Clean water}, url = {http://cic.azaruniv.ac.ir/article_13718.html}, eprint = {http://cic.azaruniv.ac.ir/article_13718_dd487987004408a9416807e1aaec6531.pdf} } @article { author = {Musazade, Hanie}, title = {Preparation nanostructured materials by sol–gel crosslinking process in present N, N-dimethyl amino pyridinium ionic liquid as a catalysis}, journal = {Communications In Catalysis}, volume = {1}, number = {1}, pages = {32-42}, year = {2018}, publisher = {Azarbaijan Shahid Madani University}, issn = {2588-5006}, eissn = {}, doi = {10.22049/cic.2018.13719}, abstract = {Silica porous materials with use of the  some of ionic  liquids (ILs) based N, N-dimethyl aminopyridinium cation (DMAP) with high thermal stability was prepared.First according to a proper sol-gel method, various RTILs with anions such as= Br, BF4 as a new kind of recyclable templates in present of trimethoxy  silane (TMOS)  as the sol-gel precursor and deionized water were employed. Then ILs was removed from the silica matrix by calcination method. The  resulting  gels  were  characterized  by  using  thermogravimetric  analysis,  infrared spectroscopy. The calcined gels were analyzed using scanning electron  microscopy and X-ray  diffraction.  In the continuous, reaction was fallowed under acidic  conditions at temperature above the melting point of the functi onal IL such as; 2–ethoxyethyl-4-(N,N-dimethyl amino) pyridinum tetrafluoroborate with larger hydrophilic polar region in a so-called  nanocasting  sol-gel  technique,  those  silica  nanostructured  materials  with highly ordered monolithic was obtained.}, keywords = {Sol-Gel process,N,N-dimethyl amino pyridinium ionic liquid,Nanostructured material,Silica,Ionogel}, url = {http://cic.azaruniv.ac.ir/article_13719.html}, eprint = {http://cic.azaruniv.ac.ir/article_13719_93009e1030cb6ddcaf4dfa84226ba211.pdf} } @article { author = {Abbasi, Amirali and Jahanbin Sardroodi, Jaber}, title = {Density functional theory study of the adsorption of toxic large molecules on nitrogen modified TiO2 anatase nanoparticles}, journal = {Communications In Catalysis}, volume = {1}, number = {1}, pages = {43-57}, year = {2018}, publisher = {Azarbaijan Shahid Madani University}, issn = {2588-5006}, eissn = {}, doi = {10.22049/cic.2018.13720}, abstract = {First principles calculations were performed to study the adsorption behaviors of  large organic molecules on the pristine and N-doped TiO2 anatase articles. Both oxygen and nitrogen in the  molecule  can  react with the TiO2 nanoparticle strongly. Thus, the binding sites were located on the oxygen or nitrogen atom of the molecule, while on the TiO2 nanoparticle the binding site occurs on the five folld coordinated titanium atoms.  It was found that the adsorption on the N-doped TiO2 is more favorable in energy than the adsorption  on  the  undoped  one,  indicating  the  high  sensitivity  of  N-doped  TiO2 nanoparticles  towards  molecule  molecules.  It  means  a  dominant  effect  of  nitrogen doping on the adsorption properties of pristine TiO2. The large overlaps in the PDOS spectra of the oxygen and nitrogen atoms of the  molecule  and titanium atom of TiO2 represent a forming Ti-O and Ti-N bonds between them.}, keywords = {Molecule,TiO2 nanoparticle,Electronic properties,Density functional theory}, url = {http://cic.azaruniv.ac.ir/article_13720.html}, eprint = {http://cic.azaruniv.ac.ir/article_13720_9ef92095d01ec1c192f82382badf2b54.pdf} } @article { author = {Rezaii, Ebrahim and Mahkam, Mehrdad and nazmi, leila and Fathi, Roghayyeh and anbani-Korabbaslo, Shabnam Jah}, title = {Synthesis and characterization of novel micro-sized tetrazole-based high energetic nitrogen-rich polymers}, journal = {Communications In Catalysis}, volume = {1}, number = {1}, pages = {58-66}, year = {2018}, publisher = {Azarbaijan Shahid Madani University}, issn = {2588-5006}, eissn = {}, doi = {10.22049/cic.2018.13721}, abstract = {Energetic materials are a class of material with high amount of stored chemical energy that can be released. Typical classes of energetic materials are e.g. explosives, pyrotechnic compositions, propellants (e.g. smokeless gun powders and rocket fuels), and fuels (e.g. diesel fuel and gasoline). The novel functionality of aromatic tetrazole derivatives with high nitrogen content predetermines a great interest to tetrazole-containing polymers. The tetrazole-based nitrogen-rich polymers were well investigated. The tetrazole rings play an important role in development of energetic polymers. The high thermal stability of these rings causes the polymers as good candidates as energetic applications. The aim of the present work is to synthesize novel nano-sized high energy density polymers based on tetrazole rings. The resulted polymer was characterized by SEM, 1H NMR and 13C NMR}, keywords = {Nano-size,Tetrazole,Nitrogen-rich polymers,Explosives,Energetic materials}, url = {http://cic.azaruniv.ac.ir/article_13721.html}, eprint = {http://cic.azaruniv.ac.ir/article_13721_782629c04e171006ce880915a67a1e70.pdf} }