Bibliografías temáticas / Chloronitrobenzene hydrogenation

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Literatura académica sobre el tema "Chloronitrobenzene hydrogenation"

Autor: Grafiati
Publicado: 14 de marzo de 2023

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Artículos de revistas sobre el tema "Chloronitrobenzene hydrogenation"

1

Wu, Jie, Guang Yin Fan, and Wen Jun Huang. "Selective Hydrogenation of p-Chloronitrobenzene Catalyzed by FexOY@C Supported Pt-Catalyst." Advanced Materials Research 960-961 (June 2014): 221–24. http://dx.doi.org/10.4028/www.scientific.net/amr.960-961.221.

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FexOy@C nanocomposites were synthesized and used as carriers for depositing Pt nanoparticles. Catalytic properties of the nanocomposites were investigated for the hydrogenation of p-chloronitrobenzene at room temperature and balloon hydrogen pressure. The catalyst Pt/FexOy@C was extremely active for the hydrogenation of p-chloronitrobenzene. Completely conversion of p-chloronitrobenzene was achieved with a selectivity of 99.7 % in ethanol-water mixture in a reaction time of 40 min. Moreover, it can be reused four times without loss of any activity.
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2

Chen, Hu, Daiping He, Qingqing He, Ping Jiang, Gongbing Zhou, and Wensheng Fu. "Selective hydrogenation of p-chloronitrobenzene over an Fe promoted Pt/AC catalyst." RSC Advances 7, no. 46 (2017): 29143–48. http://dx.doi.org/10.1039/c7ra04700b.

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3

Wang, Ping, Shiyi Wang, Ronghe Lin, Xiaoling Mou, and Yunjie Ding. "Pre-Coking Strategy Strengthening Stability Performance of Supported Nickel Catalysts in Chloronitrobenzene Hydrogenation." Catalysts 11, no. 10 (2021): 1156. http://dx.doi.org/10.3390/catal11101156.

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Supported nickel catalysts represent a class of important catalytic materials in selective hydrogenations, but applications are frequently limited by metal agglomeration or active-site blocking induced by the presence of hydrogen halides. Herein, we report a novel pre-coking strategy, exposing the nickel nanoparticles under methane dry reforming conditions to manipulate performance in the continuous-flow hydrogenation of 1,2-dichloro-4-nitrobenzene. Compared with the pristine nickel catalyst, the nanotube-like coke-modified nickel catalyst showed weakened hydrogenating ability, but much improv
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4

Zhu, Donghong, Xin Weng, Yuqiong Tang, Jingya Sun, Shourong Zheng, and Zhaoyi Xu. "Pt/Al2O3 coated with N-doped carbon as a highly selective and stable catalyst for catalytic hydrogenation of p-chloronitrobenzene to p-chloroaniline." RSC Advances 10, no. 24 (2020): 14208–16. http://dx.doi.org/10.1039/d0ra01578d.

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5

Liu, Hongmei, Kai Tao, Chunrong Xiong, and Shenghu Zhou. "Controlled synthesis of Pd–NiO@SiO2 mesoporous core–shell nanoparticles and their enhanced catalytic performance for p-chloronitrobenzene hydrogenation with H2." Catalysis Science & Technology 5, no. 1 (2015): 405–14. http://dx.doi.org/10.1039/c4cy00996g.

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6

Pietrowski, Mariusz, Michał Zieliński, and Maria Wojciechowska. "Nanocolloidal Ru/MgF2 Catalyst for Hydrogenation of Chloronitrobenzene and Toluene." Polish Journal of Chemical Technology 16, no. 2 (2014): 63–68. http://dx.doi.org/10.2478/pjct-2014-0031.

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Abstract The use of magnesium fluoride support for ruthenium active phase allowed obtaining new catalysts of high activities in the hydrogenation of toluene and ortho-chloronitrobenzene. Ruthenium colloid catalysts (1 wt.% of Ru) were prepared by impregnation of the support with the earlier produced polyvinylpyrrolidone (PVP)-stabilized ruthenium colloids. The performances of the colloidal catalysts and those obtained by traditional impregnation were tested in the reactions of toluene hydrogenation to methylcyclohexane and selective hydrogenation of ortho-chloronitrobenzene (o-CNB) to ortho-ch
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7

Fan, Guang Yin, and Chun Zhang. "Effective Hydrogenation of p-Chloronitrobenzene over Iridium Nanoparticles Entrapped in Aluminum Oxy-Hydroxide under Mild Conditions." Advanced Materials Research 881-883 (January 2014): 267–70. http://dx.doi.org/10.4028/www.scientific.net/amr.881-883.267.

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The Ir/AlO(OH) catalyst was prepared by sol-gel method and used for selective hydrogenation of p-chloronitrobenzene (p-CNB) to p-chloroniamine (p-CAN). The mechanism of p-CNB hydrogenation over the catalyst was discussed. The hydrogen bond between the surface hydroxyl groups of the catalyst and the nitrogen present in p-CNB facilitated the hydrogenation of nitro group. On the other hand, the formation of hydrogen bond between the hydrogenation product and water promotes the rapid desorption of the hydrogenation product on the surface of the catalyst. Thus the activity and selectivity were grea
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8

Chen, Yin-Zu, and Yih-Chung Chen. "Hydrogenation of para-chloronitrobenzene over nickel borides." Applied Catalysis A: General 115, no. 1 (1994): 45–57. http://dx.doi.org/10.1016/0926-860x(94)80377-3.

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9

Wang, Xiao Zhen, Yi Feng Zhu та Xiao Nian Li. "Kinetics of ο-Chloronitrobenzene Hydrogenation on Palladium/Carbon Catalyst". Advanced Materials Research 239-242 (травень 2011): 161–67. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.161.

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A 2 wt % Pd/C catalyst has been prepared by chemical impregnation and used to catalyze the hydrogenation of o-chloronitrobenzene (o-CNB) to o-chloroaniline (o-CAN) in solvent-free conditions. The effects of reaction temperature, H2 pressure, and stirring intensity on the hydrogenation kinetics have been investigated. The hydrogenation reaction showed very high selectivity with dehalogenation side products as low as 0.3% of total yield. The favorable reaction conditions were found to be temperature T = 383 K, stirring speed = 900 rpm, and feeding ratio CNB/catalyst = 200/1 (m/m). The recycled P
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10

Dobrosielska, Marta, Michał Zieliński, Miłosz Frydrych, et al. "Sol–Gel Approach for Design of Pt/Al2O3-TiO2 System—Synthesis and Catalytic Tests." Ceramics 4, no. 4 (2021): 667–80. http://dx.doi.org/10.3390/ceramics4040047.

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Al2O3-TiO2 systems with Ti:Al 0.1, 0.5 and 1.0 molar ratio obtained by the sol–gel method have been used as a platinum support. As a precursor of alumina gel, aluminum isopropoxide has been chosen. Titanium tert-butoxylate was applied to obtain titania gel and hexachloroplatinic acid was applied as a source of platinum. The systems have been characterized by the following methods: thermogravimetric analysis (TGA), Fourier transformation infrared spectroscopy (FTIR), X-ray powder diffraction (XRPD), low-temperature nitrogen adsorption–desorption isotherms (BET, BJH), temperature-programmed redu
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