Preparation, Characterization of Hydrotalcites and the Catalytic Properties in Synthesis of o-Phenylphenol over Pt/CHT

Abstract

Abstract: Mg/Al mixed oxides with molar ratios of 2_6 of Mg to Al used as supports for platinum catalysts were obtained by the thermal decomposition method.The effect of the composition of the mixed oxides on the physicochemical properties was studied by TPD, nitrogen sorption, XRD and TG-DTA characterization methods.The synthesis of o-phenylphenol(OPP) from a dimer(obtained from cyclohexanone condensation) was investigated over Pt/CHT catalysts and compared with those over Pt/MgO and Pt/Al₂O₃ catalysts.These catalysts show a high activity and selectivity for OPP, with a conversion reaching 93.8% and a selectivity reaching 87.9% in some experiments.For Pt/CHT_x catalysts, the calcined hydrotalcites exhibited strong base sites, which were necessary to catalyze the synthesis of OPP.

Key words: Hydrotalcite, CHT, OPP, Dimer dehydrogenation, n(Mg)/n(Al) ratio

YANG Piao-ping, WANG Zhen-lü, YU Jian-feng, LIU Qing-sheng, XUE Bin, ZHANG Zuo-wang, WU Tong-hao. Preparation, Characterization of Hydrotalcites and the Catalytic Properties in Synthesis of o-Phenylphenol over Pt/CHT[J]. Chemical Research in Chinese Universities, 2005, 21(1): 83-87.

[1]	FAN Huimin, WANG Bingwu, WANG Zheming, GAO Song. A Unique Layered Cu-formate Hydrate of Cu(HCOO) ₂·1/3H₂O: Structures, Dehydration, and Thermal and Magnetic Properties [J]. Chemical Research in Chinese Universities, 2022, 38(1): 107-116.
[2]	LI Meng, WU Mingwei, PAN Biwei, XU Dandan, LVSONG Zhuopu, LI Dongqing, ZHANG Fangrong, HUANG Jun. Aerobic Oxidation of 2,3,6-Trimethylphenol with Reusable Homogenized Copper Catalysts [J]. Chemical Research in Chinese Universities, 2021, 37(3): 751-756.
[3]	GU Xianmo, MA Pengwei, LIU Pei, WANG Ruiyi, LI Xincheng, ZHENG Zhanfeng. Visible-light-driven Hydroamination of Alkynes over a New Type of Activated Carbon Immobilized Cu²⁺ Photocatalyst [J]. Chemical Research in Chinese Universities, 2020, 36(6): 1039-1044.
[4]	WANG Jiarui, ZHOU Ye, SUN Libo, GE Jingjie, WANG Jingxian, DAI Chencheng, XU Zhichuan. Ir-skinned Ir-Cu Nanoparticles with Enhanced Activity for Oxygen Reduction Reaction [J]. Chemical Research in Chinese Universities, 2020, 36(3): 467-472.
[5]	FETTOUCHE Souad, BOUKHRISS Aicha, TAHIRI Mohamed, CHERKAOUI Omar, BAZI Fathallaah, GMOUH Said. Naked Eye and Selective Detection of Copper(Ⅱ) in Mixed Aqueous Media Using a Cellulose-based Support [J]. Chemical Research in Chinese Universities, 2019, 35(4): 598-603.
[6]	HUANG He, LIANG Chen, SHA Haoyan, YU Ying, LOU Yue, CHEN Cailing, LI Chunguang, CHEN Xiaobo, SHI Zhan, FENG Shouhua. Microwave Assisted Hydrothermal Way Towards Highly Crystalized N-Doped Carbon Quantum Dots and Their Oxygen Reduction Performance [J]. Chemical Research in Chinese Universities, 2019, 35(2): 171-178.
[7]	SONG Yunxi, SONG Zhen, YANG Binsheng. Spectral Study on the Interactions Among Cu(II), Doxorubicin and CopC [J]. Chemical Research in Chinese Universities, 2019, 35(1): 53-59.
[8]	YANG Jiuquan, WU Guojie, HE Yupeng, HAN Fushe. CuCl₂/8-Hydroxyquinoline-catalyzed α-Arylation of Diethyl Malonate with Aryl Bromides [J]. Chemical Research in Chinese Universities, 2018, 34(5): 727-731.
[9]	ZHANG Yingchao, WEN Chunxia, ZHANG Changjing, LI Jizhen. Copper-catalyzed ortho-Monofluorination of Aniline Derivatives with Selectfluor Directed by Picolinic Acid Amides [J]. Chemical Research in Chinese Universities, 2018, 34(4): 552-558.
[10]	LIU Chao, LIU Yijie, ZHANG Lili, JIANG Kun, ZHANG Li. Two Coordination Compounds Bearing Bis(2-dimethylaminoethyl) Ether: Syntheses, Crystal Structures and Catalytic Application to the Henry Reaction [J]. Chemical Research in Chinese Universities, 2018, 34(3): 358-362.
[11]	CHENG Kai, YANG Wei, WANG Hui, ZHOU Jie, WU Shengji, YU Tianming, PAN Jianbo. Effect of Cu(Ⅱ) on Degradation and Decolorization of Rhodamine B in Subcritical Water [J]. Chemical Research in Chinese Universities, 2017, 33(4): 643-647.
[12]	YAN Xia, ZHANG Jianxin. Copper(II) Complexes Based on 4'-R-Terpyridine: Synthesis, Structures, and Photocatalytic Properties [J]. Chemical Research in Chinese Universities, 2017, 33(1): 1-6.
[13]	BEN Shunge, YUAN Fulong, ZHU Yujun. Effect of Zr Addition on Catalytic Performance of Cu-Zn-Al Oxides for CO₂ Hydrogenation to Methanol [J]. Chemical Research in Chinese Universities, 2016, 32(6): 1005-1009.
[14]	SHEN Guodong, ZHAO Lingyu, BAO Weiliang. 1, 1'-Binaphthyl-2, 2'-diamine Dihydrochloride: an Efficient Ligand for the N-Arylation of Imidazole with Aryl/heteroaryl Halides Catalyzed by CuI [J]. Chemical Research in Chinese Universities, 2016, 32(6): 947-951.
[15]	ZHANG Guofu, ZHANG Guihua, LEI Jie, LI Shasha, XU Shengjun, DING Chengrong, SHAN Shang. Aerobic Alcohol Ammoxidation Catalyzed by Copper(I)/Amino Acid: a Scalable Protocol to Nitriles [J]. Chemical Research in Chinese Universities, 2016, 32(4): 586-593.

Preparation, Characterization of Hydrotalcites and the Catalytic Properties in Synthesis of o-Phenylphenol over Pt/CHT

PDF (PC)

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments