Preparation of hydrotalcite-supported palladium catalysts and their catalytic performances

Abstract

Abstract: A series of hydrotalcite-supported palladium catalysts (Pd/ZnAl-LDH) were prepared with the ion exchange-reduction method，and characterized with XRD，TEM and ICP. Further，their catalytic performance for benzyl alcohol oxidation in low toxicity solvents (ethanol and water) were investigated. Solvent properties，Pd loading，O2 pressure and reaction time had great influences on the prepared catalysts. Pd/ZnAl-LDH catalyst with 2% Pd loading exhibited optimum catalytic performance in ethanol solvent，and its activity and selectivity to benzaldehyde could reach 93.6% and 93.3%，respectively.

Key words: hydrotalcites, catalyst support, palladium, selective oxidation, benzaldehyde

摘要： 采用离子交换-还原法制备了系列锌铝水滑石负载钯催化剂Pd/ZnAl-LDH，通过XRD、TEM和ICP对该系列催化剂进行了表征，并对其在低毒溶剂乙醇或水中苯甲醇氧化反应的催化性能进行了详细考察。研究结果表明，反应溶剂、Pd负载量、氧气压力、反应时间等对催化剂的催化性能有很大的影响，当Pd负载质量分数为2%，反应压力为0.2MPa时，Pd/ZnAl-LDH在乙醇溶剂中表现出最佳的催化性能，苯甲醇转化率和苯甲醛选择性可分别达到93.3%和93.6%。

关键词: 水滑石, 催化剂载体, 钯, 选择性氧化, 苯甲醛

LI Bingjie，SHI Xiufeng，LIU Xiufang，FAN Binbin，LI Ruifeng. Preparation of hydrotalcite-supported palladium catalysts and their catalytic performances[J]. Chemical Industry and Engineering Progree.

李冰杰，史秀锋，刘秀芳，范彬彬，李瑞丰. ZnAl水滑石负载钯催化剂的制备及催化性能[J]. 化工进展.

[1]	YU Zhiqing, HUANG Wenbin, WANG Xiaohan, DENG Kaixin, WEI Qiang, ZHOU Yasong, JIANG Peng. B-doped Al₂O₃@C support for CoMo hydrodesulfurization catalyst and their hydrodesulfurization performance [J]. Chemical Industry and Engineering Progress, 2023, 42(7): 3550-3560.
[2]	GONG Pengcheng, YAN Qun, CHEN Jinfu, WEN Junyu, SU Xiaojie. Properties and mechanism of eriochrome black T degradation by carbon nanotube-cobalt ferrite composites activated persulfate [J]. Chemical Industry and Engineering Progress, 2023, 42(7): 3572-3581.
[3]	ZHANG Wei, QIN Chuan, XIE Kang, ZHOU Yunhe, DONG Mengyao, LI Jie, TANG Yunhao, MA Ying, SONG Jian. Application and performance enhancement challenges of H₂-SCR modified platinum-based catalysts for low-temperature denitrification [J]. Chemical Industry and Engineering Progress, 2023, 42(6): 2954-2962.
[4]	ZHANG Ning, WU Haibin, LI Yu, LI Jianfeng, CHENG Fangqin. Recent advances in preparation and application of floating photocatalysts in water treatment [J]. Chemical Industry and Engineering Progress, 2023, 42(5): 2475-2485.
[5]	MA Yuan, XIAO Qingyue, YUE Junrong, CUI Yanbin, LIU Jiao, XU Guangwen. CO _xco-methanation over a Ni-based catalyst supported on CeO₂-Al₂O₃ composite [J]. Chemical Industry and Engineering Progress, 2023, 42(5): 2421-2428.
[6]	WANG Jia, PENG Chong, TANG Lei, LU Anhui. Modification of the active phase structure of residue hydrogenation catalyst and its catalytic performance [J]. Chemical Industry and Engineering Progress, 2023, 42(4): 1811-1821.
[7]	LIU Liang, WANG Zhaoxi, LI Xinlong, ZHANG Gaoshan, WANG Shouyang, ZHANG Linlin, LU Chang, QING Mengxia. Research progress on the improvement of vanadium and titanium denitrification catalysts against ammonium bisulfate poisoning [J]. Chemical Industry and Engineering Progress, 2023, 42(1): 215-225.
[8]	WANG Xing, ZHAO Zilong, ZHANG Xiaoshan, WANG Hongjie, DONG Wenyi, CHEN Huihui. Influence of preparation conditions of biochar-supported iron catalyst on its decomplexation of Ni-EDTA and iron-leaching [J]. Chemical Industry and Engineering Progress, 2022, 41(9): 4831-4839.
[9]	ZENG Junjian, ZHAO Jigang. Research progress of gold based mercury-free catalysts for acetylene hydrochlorination [J]. Chemical Industry and Engineering Progress, 2022, 41(7): 3589-3596.
[10]	GAO Bo, FENG Xudong, LI Chun. Visual and high-throughput method for detecting the activity of aspartate transcarbamylase [J]. Chemical Industry and Engineering Progress, 2022, 41(4): 2054-2059.
[11]	TANG Jinqiong, KONG Yong, SHEN Xiaodong. Advances in the synthesis and application of the carbide-derived carbons [J]. Chemical Industry and Engineering Progress, 2022, 41(2): 791-802.
[12]	ZHANG Yongxiang, WANG Delong, GUO Xiaoyan, SHAO Huaiqi. Structure and performance of CrO _x /Ti-Al₂O₃ catalysts for propane dehydrogenation [J]. Chemical Industry and Engineering Progress, 2022, 41(11): 5879-5886.
[13]	CHEN Zhiqiang, CHE Chunxia, WU Dengfeng, WEN He, HAN Wei, ZHANG Feng, XU Haoxiang, CHENG Daojian. Advances in catalysts for selective hydrogenation of acetylene [J]. Chemical Industry and Engineering Progress, 2022, 41(10): 5390-5405.
[14]	DAI Xiaojun, CHENG Yan, WANG Xiaohan, HUANG Wenbin, WEI Qiang, ZHOU Yasong. Research progress in the synthesis of small particle-size SAPO-11 molecular sieves [J]. Chemical Industry and Engineering Progress, 2021, 40(S1): 191-203.
[15]	ZHANG Wenhui, HUA Rui, QI Suitao. Research progress of low temperature Fischer-Tropsch synthetic wax oil hydrocracking refining technology [J]. Chemical Industry and Engineering Progress, 2021, 40(S1): 81-87.

Preparation of hydrotalcite-supported palladium catalysts and their catalytic performances

ZnAl水滑石负载钯催化剂的制备及催化性能

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments