نتایج جستجو برای: fe based catalyst

تعداد نتایج: 3033628  

Journal: :Chemical communications 2015
Lanfang Zou Dawei Feng Tian-Fu Liu Ying-Pin Chen Stephen Fordham Shuai Yuan Jian Tian Hong-Cai Zhou

Stable porphyrin based porous polymer networks, PPN-23 and PPN-24, have been synthesized through a facile one-pot approach by the aromatic substitution reactions of pyrrole and aldehydes. PPN-24(Fe) shows high catalytic efficiency as a biomimetic catalyst in the oxidation reaction of 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) in the presence of H2O2.

2017
Yiqing Wang Mingyuan Zhu Gang Wang Bin Dai Feng Yu Zhiqun Tian Xuhong Guo

The development of effective oxygen electrode catalysts for renewable energy technologies such as metal-air batteries and fuel cells remains challenging. Here, we prepared a novel high-performance oxygen reduction reaction (ORR) catalyst comprised of Fe₂N nanoparticles (NPs) in situ decorated over an N-doped porous carbon derived from pomelo peel (i.e., Fe₂N/N-PPC). The decorated Fe₂N NPs provi...

2014
Hongwang Wang Jim Hodgson Tej B Shrestha Prem S Thapa David Moore Xiaorong Wu Myles Ikenberry Deryl L Troyer Donghai Wang Keith L Hohn Stefan H Bossmann

The quest for renewable and cleaner energy sources to meet the rapid population and economic growth is more urgent than ever before. Being the most abundant carbon source in the atmosphere of Earth, CO2 can be used as an inexpensive C1 building block in the synthesis of aromatic fuels for internal combustion engines. We designed a process capable of synthesizing benzene, toluene, xylenes and me...

2015
Frantisek Kastanek Petr Kastanek Anna Kallistova Olga Solcova

Efficiency of reduction of PCBs in aqueous solution was examined with the help of bimetallic catalyst Fe-C/Pd consisting of palladized grey cast iron and with a newly designed trimetallic catalyst (Cu-Fe-C/Pd) consisting of a copper metal plate with embodied microparticles of palladized grey iron (bimetallic catalyst). PCB solutions were prepared using DELOR 103. The trimetallic catalyst was si...

Journal: :health scope 0
narges shamsedini department of environmental health engineering, school of health, student research committee, shiraz university of medical sciences, shiraz, ir iran mohammad ali baghapour research center for health sciences, department of environmental health, school of health, shiraz university of medical sciences, shiraz, ir iran mansooreh dehghani research center for health sciences, department of environmental health, school of health, shiraz university of medical sciences, shiraz, ir iran; research center for health sciences, department of environmental health, school of health, shiraz university of medical sciences, shiraz, ir iran. tel: +98-9164490350, fax: +98-7137260225 simin nasseri department of environmental health engineering, school of health, student research committee, shiraz university of medical sciences, shiraz, ir iran mohammad sohrab moghaddam qom university, qom, ir iran

conclusions according to the results, it can be concluded that the titanium catalyst doped with iron (fe+3-tio2) processes is an appropriate method for reducing atrazine in polluted water resources. results the results demonstrated that the atrazine removal rate increased by decreasing the initial atrazine concentration and the maximum rate of atrazine removal (41.72%) was at ph = 11, atrazine ...

2014
Carolina Solis Maldonado Javier Rivera De la Rosa Carlos J. Lucio-Ortiz Aracely Hernández-Ramírez Felipe F. Castillón Barraza Jaime S. Valente

The role of iron in two modes of integration into alumina catalysts was studied at 0.39 wt% Fe and tested in trichloroethylene combustion. One modified alumina was synthesized using the sol-gel method with Fe added in situ during hydrolysis; another modification was performed using calcined alumina, prepared using the sol-gel method and impregnated with Fe. Several characterization techniques w...

2011
Harald Wagner Judith Baumgartner Christoph Marschner Peter Poelt

Reinvestigation of the Lewis acid catalyzed rearrangement of some open-chain permethyloligosilanes with the Al(Fe)Cl(3) catalyst system exhibited several cases of additional reactivity: namely, a fragmentation/cyclization reaction. Introduction of (trimethylsilyl)methyl substituents into the oligosilane substrates strongly facilitated this reaction, yielding cyclic or bicyclic carbacyclosilanes...

2012
K. Ravi B. Krishnakumar M. Swaminathan

A new BiCl3-loaded montmorillonite K10 catalyst has been prepared by solid dispersion method and was characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and cyclic voltammetry (CV) measurements. BiCl3 loaded K10 (BiCl3-K10) has been used as solid acid catalyst for the synthesis of azine derivatives from benzophenone hydrazone and ketones/aldehydes by ...

Journal: :Chemical communications 2011
Cheng-Xia Miao Jin-Quan Wang Bing Yu Wei-Guo Cheng Jian Sun Sébastien Chanfreau Liang-Nian He Suo-Jiang Zhang

The first bimagnetic ionic liquid based on Fe and TEMPO with cooperative functionalities not only exhibited strong paramagnetic behaviour at room temperature under an applied magnetic field of 5000 Oe but also proved to be an effective catalyst for selective aerobic oxidation of aromatic alcohols under mild and clean conditions.

Journal: :Dalton transactions 2014
Alexander R Parent Takashi Nakazono Shu Lin Satoshi Utsunomiya Ken Sakai

Iron tris(2-methylpyridyl)amine (TPA) and iron 1-(bis(2-methylpyridyl)amino)-2-methyl-2-propanoate (BPyA) salts are characterized as water oxidation catalysts (WOCs) using sodium periodate. Under the conditions used, these complexes serve as homogeneous WOCs as demonstrated via kinetic analysis and dynamic light scattering (DLS). The Fe(BPyA) salt serves as both a mononuclear and dinuclear cata...

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