Preparation of High-surface-area Hierarchically Porous γ-Al2O3 by One-step Hydrolysis of Metal Alkoxide and Performance †

doi:10.7503/cjcu20200076

Abstract

Abstract:

Ultrahigh-surface-area γ-Al₂O₃ materials with special morphologies and hierarchically porous structures were prepared at room temperature by one-step hydrolysis of metal alkoxide under different aqueous organic solvents systems. With the aid of X-ray diffraction(XRD), N₂ adsorption-desorption, scanning electronic microscopy(SEM) and transmission electron microscope(TEM), it was proved that the hydrolysis and condensation process of aluminum tri-sec-butoxide and the diffusion behavior of by-product alcohol molecules could be precisely controlled by the water content and the type of solvent, thereby the product structure were optimized in return. The results show that the γ-Al₂O₃ material with straight macroporous wall and 3D-mesporous was obtained under the water/acetonitrile system, meanwhile, the smooth, flaky and wrinkled morphologies appeared in the macroporous wall in turn as the water content increased. However, only 3D-mesporous structure stacked with 10 nm-thick flaky γ-Al₂O₃ could be observed for the material prepared under the saturated butanol solution system with the specific surface area of up to 517 m ²/g. Besides, the macro-mesoporous γ-Al₂O₃ material prepared under the 3 mL water content in the water/acetonitrile system was selected as the carrier for Pt-based catalyst. The carrier structure basically remained intact after the loading process and metal Pt nanoparticles were uniformly dispersed on the carrier. The hierarchical γ-Al₂O₃ supported Pt-based catalyst showed better hydrodemetallization performance than the commercial boehmite supported catalyst, and the Ni and V removal rate increased by 11.62% and 10.83%, respectively.

Key words: One-step hydrolysis of metal alkoxide, Hierarchically porous structure, Catalyst, Residual oil hydrogenation, Demetallization

CLC Number:

O643
O611

TrendMD:

LIU Siming, WANG Jiannan, YU Shen, LIU Zhan, WANG Zhao, LI Xiaoyun, CHEN Lihua, SU Baolian. Preparation of High-surface-area Hierarchically Porous γ-Al₂O₃ by One-step Hydrolysis of Metal Alkoxide and Performance ^†[J]. Chem. J. Chinese Universities, 2020, 41(6): 1208.

Figures/Tables 12

References 29

[1]	Rana M. S., Sámano V., Ancheyta J., Diaz J. A. I., Fuel, 2007, 86(9), 1216—1231
[2]	Song G., Wang D. H., Zhang Z., Liu M., Xu Q., Zhao D. Z., Ultrason. Sonochem., 2018, 48, 103—109
[3]	Lee H. C., Park S. K., Appl. Chem. Eng., 2016, 27(4), 343—352
[4]	Ali M. F., Abbas S., Fuel Processing Technol., 2006, 87(7), 573—584
[5]	Yin H. L., Zhou T. N., Liu Y. Q., Chai Y. M., Liu C. G., J. Fuel Chem. Technol., 2010, 38(6), 705—709
[6]	Fang W. P., Sun S. H., Wu G. L., Wang J. H., Wang Y. L., Ind. Catal., 1997, (3), 32—34
	( 方维平, 孙素华, 吴国林, 王家寰, 王永林 . 工业催化, 1997, (3), 32—34)
[7]	Fang X. C. , Chem. Ind. Eng. Prog. 2011, 30(1), 95—104
	( 方向晨 . 化工进展, 2011, 30(1) 95—104)
[8]	Xu J. D., Che X. R., Wang J. H. , Ind. Catal. 2018, 26(9), 57—60
	( 徐景东, 车晓瑞, 王娇红 . 工业催化, 2018, 26(9) 57—60)
[9]	Li C., Zhan X. C., Zhao R. Y., Zhao Y. S., Zhao Y. S., Yang Z. H., Liu C. G. , Mod. Chem. Ind. 2015, 35(1), 18—22
	( 李灿, 展学成, 赵瑞玉, 赵瑜生, 赵元生, 杨朝合, 刘晨光 . 现代化工, 2015, 35(1) 18—22)
[10]	Rana M. S., Ancheyta J., Maity S. K., Rayo P., Catal. Today, 2005, 104, 86—93
[11]	Feng R., Hu X., Yan X., Yan Z., Rood M. J., Microporous Mesoporous Mater., 2016, 241, 89—97
[12]	Shi Z., Jiao W., Chen L., Wu P., Wang Y., He M., Microporous Mesoporous Mater., 2016, 224, 253—261
[13]	Do L. T., Huy C. N., Shin E. W., J. Porous Mater., 2016, 23, 1107—1112
[14]	Liu M., Yang H., Colloids and Surfaces A: Physicochem. Eng. Aspects, 2010, 371(1—3), 126—130
[15]	Li Y. H., Peng C., Li L. L., Rao P. G., J. Am. Ceram. Soc., 2014, 97(1), 35—39
[16]	Wu X., Zhang B., Hu Z., Powder Technol., 2013, 239, 155—161
[17]	Yuan Z. Y., Ren T. Z., Azioune A., Pireaux J. J., Su B. L., Chem. Mater., 2006, 18, 1753—1767
[18]	Vantomme A., Léonard A., Yuan Z. Y., Su B. L., Colloids and Surfaces A: Physicochem. Eng. Aspects, 2007, 300(1/2), 70—78
[19]	Ren T. Z., Yuan Z. Y., Su B. L., . Chem. Mater., 2004, (23), 2730—2731
[20]	Hakim S. H., Shanks B. H., Chem. Mater., 2009, 21(10), 2027—2038
[21]	Dapsens P. Y., Hakim S. H., Su B. L., Shanks B. H., Chem. Commun., 2010, 46(47), 8980—8982
[22]	Yuan Z. Y., Ren T. Z., Du G. H., Su B. L., Appl. Phys. A, 2005, 80(4), 743—747
[23]	Yuan Z. Y., Ren T. Z., Du G. H., Su B. L., Chem. Phys. Lett., 2004, 389(1—3), 83—86
[24]	Li X. Y., Chen L. H., Li Y., Rooke J. C., Wang C., Lu Y., Krief A., Yang X. Y., Su B. L., J. Colloid Interface Sci., 2012, 368(1), 128—138
[25]	Li X. Y., Chen L. H., Li Y., Rooke J. C., Deng Z., Hu Z. Y., Liu J., Krief A., Yang X. Y., Su B. L., Microporous Mesoporous Mater., 2012, 152, 110—121
[26]	Hakim S. H., Shanks B. H., Microporous Mesoporous Mater., 2010, 135(1—3), 105—115
[27]	Xu J. G ., J. Huaibei Coal Mining Teachers College, 1996, 17(1), 53—55
	( 徐金光 . 淮北煤师院学报, 1996, 17(1) 53—55)
[28]	Lemaire A., Rooke J. C., Chen L. H., Su B. L., Langmuir, 2011, 27(6), 3030—3043
[29]	Krishnan R., Wu S. Y., Chen H. T., Phys. Chem. Chem. Phys., 2019, 21(23), 12201—12208

System	S_BET/(m²·g^-1)	Mesopore size/nm	Total pore volume/(cm³·g^-1)
C₂H₃N	462	——	0.05
H₂O/C₂H₃N	381	9	0.75
C₄H₁₀O	305	——	0.11
H₂O/C₄H₉OH	517	12	1.66
SB-C	213	6	0.68

System	S_BET/(m²·g^-1)	Mesopore size/nm	Total pore volume/(cm³·g^-1)
C₂H₃N	462	——	0.05
H₂O/C₂H₃N	381	9	0.75
C₄H₁₀O	305	——	0.11
H₂O/C₄H₉OH	517	12	1.66
SB-C	213	6	0.68

Sample	S_BET/( m²·g^-1)	Mesopore size/nm	Total pore volume/(cm³·g^-1)
γ-Al₂O₃	381	9	0.75
1.0% Pt/γ-Al₂O₃	309	6	0.50

Sample	S_BET/( m²·g^-1)	Mesopore size/nm	Total pore volume/(cm³·g^-1)
γ-Al₂O₃	381	9	0.75
1.0% Pt/γ-Al₂O₃	309	6	0.50

Sample	Ni removal rate(%)	V removal rate(%)
1.0% Pt/SB-C	24.65	71.48
1.0% Pt/γ-Al₂O₃	36.27	82.31

Preparation of High-surface-area Hierarchically Porous γ-Al₂O₃ by One-step Hydrolysis of Metal Alkoxide and Performance ^†

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 12

References 29

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	TENG Zhenyuan, ZHANG Qitao, SU Chenliang. Charge Separation and Surface Reaction Mechanisms for Polymeric Single-atom Photocatalysts [J]. Chem. J. Chinese Universities, 2022, 43(9): 20220325.
[2]	WANG Ruyue, WEI Hehe, HUANG Kai, WU Hui. Freezing Synthesis for Single Atom Materials [J]. Chem. J. Chinese Universities, 2022, 43(9): 20220428.
[3]	CHU Yuyi, LAN Chang, LUO Ergui, LIU Changpeng, GE Junjie, XING Wei. Single-atom Cerium Sites Designed for Durable Oxygen Reduction Reaction Catalyst with Weak Fenton Effect [J]. Chem. J. Chinese Universities, 2022, 43(9): 20220294.
[4]	QIN Yongji, LUO Jun. Applications of Single-atom Catalysts in CO₂ Conversion [J]. Chem. J. Chinese Universities, 2022, 43(9): 20220300.
[5]	FAN Jianling, TANG Hao, QIN Fengjuan, XU Wenjing, GU Hongfei, PEI Jiajing, CEHN Wenxing. Nitrogen Doped Ultra-thin Carbon Nanosheet Composited Platinum-ruthenium Single Atom Alloy Catalyst for Promoting Electrochemical Hydrogen Evolution Process [J]. Chem. J. Chinese Universities, 2022, 43(9): 20220366.
[6]	LIN Zhi, PENG Zhiming, HE Weiqing, SHEN Shaohua. Single-atom and Cluster Photocatalysis： Competition and Cooperation [J]. Chem. J. Chinese Universities, 2022, 43(9): 20220312.
[7]	CHENG Qian, YANG Bolong, WU Wenyi, XIANG Zhonghua. S-doped Fe-N-C as Catalysts for Highly Reactive Oxygen Reduction Reactions [J]. Chem. J. Chinese Universities, 2022, 43(9): 20220341.
[8]	YANG Jingyi, LI Qinghe, QIAO Botao. Synergistic Catalysis Between Ir Single Atoms and Nanoparticles for N₂O Decomposition [J]. Chem. J. Chinese Universities, 2022, 43(9): 20220388.
[9]	LIN Gaoxin, WANG Jiacheng. Progress and Perspective on Molybdenum Disulfide with Single-atom Doping Toward Hydrogen Evolution [J]. Chem. J. Chinese Universities, 2022, 43(9): 20220321.
[10]	REN Shijie, QIAO Sicong, LIU Chongjing, ZHANG Wenhua, SONG Li. Synchrotron Radiation X-Ray Absorption Spectroscopy Research Progress on Platinum Single-atom Catalysts [J]. Chem. J. Chinese Universities, 2022, 43(9): 20220466.
[11]	WEI Chunhong, JIANG Qian, WANG Panpan, JIANG Chengfa, LIU Yuefeng. Atomic Scale Investigation of Pt Atoms/clusters Promoted Co-catalyzed Fischer-Tropsch Synthesis [J]. Chem. J. Chinese Universities, 2022, 43(8): 20220074.
[12]	ZHANG Xinxin, XU Di, WANG Yanqiu, HONG Xinlin, LIU Guoliang, YANG Hengquan. Effect of Mn Promoter on CuFe-based Catalysts for CO₂ Hydrogenation to Higher Alcohols [J]. Chem. J. Chinese Universities, 2022, 43(7): 20220187.
[13]	ZHAO Runyao, JI Guipeng, LIU Zhimin. Efficient Electrocatalytic CO₂ Reduction over Pyrrole Nitrogen-coordinated Single-atom Copper Catalysts [J]. Chem. J. Chinese Universities, 2022, 43(7): 20220272.
[14]	ZHOU Leilei, CHENG Haiyang, ZHAO Fengyu. Research Progress of CO₂ Hydrogenation over Pd-based Heterogeneous Catalysts [J]. Chem. J. Chinese Universities, 2022, 43(7): 20220279.
[15]	SONG Youwei, AN Jiangwei, WANG Zheng, WANG Xuhui, QUAN Yanhong, REN Jun, ZHAO Jinxian. Effects of Ag，Zn，Pd-doping on Catalytic Performance of Copper Catalyst for Selective Hydrogenation of Dimethyl Oxalate [J]. Chem. J. Chinese Universities, 2022, 43(6): 20210842.