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75篇 您的检索式:作者名="Ziarani"
    题名 作者 年代 出处 被引量
1纳米孔碳负载Fe_3O_4催化剂上苯直接羟基化制苯酚(英文)显示文摘Fe3O4/CMK-3 was prepared by impregnation and used as a catalyst for the direct hydroxylation of benzene to phenol with hydro-gen peroxide. The iron species in the prepared catalyst was Fe3O4 because of the partial reduction of iron(III) to iron(II) on the surface of CMK-3. The high catalytic activity of the catalyst arises from the formation of Fe3O4 on the surface of CMK-3 and the high selectivity for phenol is attributed to the consumption of excess hydroxyl radicals by CMK-3. The effect of temperature,reaction time,volume of H2O2,and amount of catalyst on the catalytic performance of the prepared catalyst were investigated. Under optimized conditions,the catalyst showed excellent catalytic performance for the hydroxylation of benzene to phenol and 18% benzene conversion was achieved with 92% selectivity for phenol and with a TOF value of 8.7 h-1. The stability of catalyst was investigated by determining its activity after the fourth run and it was found to have decreased to 80% of the fresh catalyst's activity.Pezhman ARAB Alireza BADIEI Amir KOOLIVAND Ghodsi MOHAMMADI ZIARANI 2011催化学报2011,32,2:7
2可见光下改性的纳米孔二氧化硅(LUS-1)光催化苯直接羟基化合成苯酚(英文)显示文摘Fe-g-C3N4-LUS-1 was prepared by the thermal decomposition of dicyandiamide inside the pores of LUS-1 under an inert atmosphere.It was used as a photocatalyst for the hydroxylation of benzene to phenol in sunlight.The catalysts were characterized by Fourier transform infrared spectroscopy,N2 adsorption-desorption,X-ray diffraction,and scanning electron microscopy.In Fe-g-C3N4-LUS-1,a single layer of graphitic carbon nitride(g-C3N4) was formed on the surface of LUS-1.The photocatalytic activity of the iron containing g-C3N4 based catalysts was investigated,and the catalytic activity was remarkably enhanced when the reaction condition was changed from dark to sunlight.The best result was obtained with 20%Fe-g-C3N4-LUS-1 in sunlight.Ghasem SHIRAVAND Alireza BADIEI Ghodsi Mohammadi ZIARANI Morteza JAFARABADI Majid HAMZEHLOO 2012催化学报2012,33,8:4
3Aminobenzenesulfonamide functionalized SBA-15 nanoporous molecular sieve: A new and promising adsorbent for preconcentration of lead and copper ions显示文摘A rapid method for the extraction and monitoring of nanogram level of Pb2+ and Cu2+ ions using uniform silanized mesopor (SBA-15) functionalized with aminobenzenesulfonamide groups and flame atomic absorption spectrometry (FAAS) is presented. Aminobenzenesulfonamide functionalized SBA-15 was synthesized according to procedure in the literature and the presence of organic groups in the silica framework was demonstrated by FT-IR spectra. The functionalized product showed the BET surface area 110 m2/g and pore diameter 5.1 nm, based on adsorption-desorption of N2 at 77 K. The effect of several variables such as (amount of adsorbent, stirring time, pH and presence of other ions in the medium) has been studied. Lead and copper were completely extracted at pH greater than 3 after stirring for 10 min. The maximum capacity of the adsorbent was found to be 191.3 ± 1.4 and 155.0 ± 1.0 μg of lead and copper ions/mg functionalized SBA-15, respectively. The preconcentration factor of the method was found to be 200. The detection limit of the technique was 3.4 and 0.4 ng/mL for Pb2+ and Cu2+, respectively. The applications of this methodology for real samples were examined by various water type, black tea and pepper samples.Leila Hajiaghababaei Babak Ghasemi Alireza Badiei Hassan Goldooz Mohammad Reza Ganjali Ghodsi Mohammadi Ziarani 2012Journal of Environmental Sciences2012,24,7:3
4中孔氧化硅负载铬催化剂上苯高选择性生成苯酚:响应曲面分析法用于反应条件优化(英文)显示文摘以硝酸铬为前驱体,中孔氧化硅SBA-16为载体,采用简单浸渍法制备了Cr/SBA-16催化剂,并采用广角和小角X射线衍射、N2吸附-脱附、透射电镜和紫外-可见光谱等技术对其进行了表征.同时将该催化剂用于以H2O2为氧化剂的苯直接羟基化制苯酚反应以考察其催化性能.将中心组合设计与响应曲面分析法(RSM)相结合,对影响反应性能的操作变量如反应温度、反应时间及HO2和催化剂用量进行了优化.结果表明,独立变量和苯酚产率之间的关系可用二阶多项式模型来表达,其相关系数(R22)高达0.985,表明用RSM预测的数值与实验值吻合较好.得到的苯酚选择性较高时的操作条件为:反应温度324 K,反应时间8 h,H2O2和催化剂用量分别为3.28 mL和0.09 g.由此可见,将RSM法用于苯羟基化制苯酚反应条件优化是可靠的.Milad Jourshabani Alireza Badiei Negar Lashgari Ghodsi Mohammadi Ziarani 2015Chinese Journal of Catalysis2015,36,11:3
5氨基功能化的介孔SBA-15分子筛在一锅法合成螺羟吲哚中的应用(英文)显示文摘Amino-functionalized SBA-15(SBA-Pr-NH2) has been used as a new basic nanocatalyst in the one-pot synthesis of spirooxindole derivatives via the three-component condensation reaction of isatins,activated methylene reagents,and dimedone in an aqueous medium.SBA-Pr-NH2 has been established as an efficient heterogeneous nanoporous solid basic catalyst(pore size of 6 nm) that can be easily handled and removed from the reaction mixture by simple filtration,and also recovered and reused without noticeable loss of reactivity.Ghodsi MOHAMMADI ZIARANI Alireza BADIEI Somayeh MOUSAVI Negar LASHGARI Afsaneh SHAHBAZI 2012催化学报2012,33,11:2
6A method of extraction of nonstationary sinusoids显示文摘Ziarani A K Konrad A 2004Signal Process2004,84,8:1
7Broken rotor bar detection in induction machines with transient operating speeds显示文摘Douglas H Pillay P Ziarani A 2005IEEE Transaction on Energy Conversion2005,20,1:1
8A molecular dyna- mics study of perturbed poiseuille flow in a nano- channel显示文摘ZIARANI A S MOHAMAD A A 2005Microfluid Nanofluid2005,2,1:1
9Bilateral core decompression for osteonecrosis of the femoral head 显示文摘Israelite C Nelson CL Ziarani CF 2005Clin Orthop Relat Res2005,441,:1
10Broken Rotor Bar Detection in Induction Machines with Transient Operating Speeds 显示文摘Douglas H Pillay P Ziarani A K 2005IEEE Trans on Energy Conversion2005,20,1:1
11Bilateral core decompression for osteonecrosis of the femoral head显示文摘Israelite C Nelson CL Ziarani CF 2005Clin Orthop Relat Res2005,441,13:1
12A new algorithm for transient motor current signature analysis using wavelets显示文摘Douglas H Pillay P Ziarani A K 2004Industry Applications IEEE Transactions on2004,40,5:1
13A new technique of measurement of nonstationary harmonics显示文摘Mcnamara D M Ziarani A K Ortmeyer T H 2007IEEE Trans on Power Delivery2007,22,1:1
14On the equivalence of three independently developed phase-locked loops显示文摘Ziarani A K Karimi-Ghartemani M 2005IEEE Transactions on Automatic Control2005,12,50:1
15A novel time-domain method of analysis of pulsed sine wave signals显示文摘Ziarani A K Konrad A Sinclair A N 2003IEEE Transactions on Instrumentation and Measurement2003,52,3:1
16Bilateral core decompression for osteonecrosis of the femoral head 显示文摘Israelite C Nelson CL Ziarani CF 2005Clin Orthop2005,441,:1
17A novel adaptive flicker measurement technique 显示文摘SCHENNE M L ZIARANI A K ORTMEYER T H 2011Inter- national Journal of Electrical Power & Energy Systems2011,33,10:1
18A Molecular Dynamics Study of Perturbed Poiseuille Flow in a Nanochannel 显示文摘Ziarani A S Mohamad A A 2005Microfluid Nanofluid2005,2,:1
19Broken rotor bar detection in induction machines with transient operating speeds显示文摘Douglas H Pillay P Ziarani A 2005IEEE Transaction on Energy Conversion2005,20,1:1
20Periodic orbit analysis of two dynamical systems for electrical engineering applications显示文摘Karimi Ghartemani M Ziarani A K 2003Journal of Engineering Mathematics2003,45,:1
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