Effect of Cr-Doping on the Acidity and Pore Structure of Mesoporous Magnesium Fluoride

doi:10.3724/SP.J.1088.2012.20854

Abstract

Abstract: The effect of Cr-doping on the acidity and pore structure of mesoporous magnesium fluoride prepared by co-precipitation was investigated. The prepared MgF₂, CrF₃, and Cr(x)-MgF₂ with different Cr loadings were characterized by N₂ adsorption-desorption, X-ray powder diffraction, transmission electron microscopy, pyridine adsorption Fourier transform infrared spectroscopy, and NH₃ temperature-programmed desorption. The catalytic activity of MgF₂ and Cr(x)-MgF₂ was tested in the disproportionation of CHClF₂. The doped Cr in the MgF₂ results in the improvements of the specific surface area and surface Lewis acidity. Meanwhile, the MgF₂ catalyst samples doped with Cr show excellent catalytic performance in CHClF₂ disproportionation.

Key words: mesoporous magnesium fluoride, chromium fluoride, monochlorodifluoromethane, disproportionation, co-precipitation

NIU Huai-Cheng, LI Li-Chun, LI Ying, GUO Li, TANG Hao-Dong, HAN Wen-Feng, LIU Hua-Zhang. Effect of Cr-Doping on the Acidity and Pore Structure of Mesoporous Magnesium Fluoride[J]. Chinese Journal of Catalysis, 2013, 34(2): 373-378.

×
share this article

Add to citation manager EndNote|Ris|BibTeX

URL: https://www.cjcatal.com/EN/10.3724/SP.J.1088.2012.20854

https://www.cjcatal.com/EN/Y2013/V34/I2/373

References

1 牛怀成, 李利春, 李瑛, 韩文锋, 唐浩东, 刘化章. 化工进展 (Niu H Ch, Li L Ch, Li Y, Han W F, Tang H D, Liu H Zh. Chem Ind Eng Progr), 2012, 31: 1484
2 吕剑, 石磊, 王振宇, 李惠黎, 彭少逸. 催化学报 (Lü J, Shi L, Wang Zh Y, Li H L, Peng Sh Y. Chin J Catal), 1998, 19: 375
3 吕剑, 石磊, 任建纲, 陈蜀康, 耿寄仓. 催化学报 (Lü J, Shi L, Ren J G, Chen Sh K, Geng J C. Chin J Catal), 1997, 18: 28
4 吕剑, 石磊, 杨会娥, 任建纲, 李惠黎, 彭少逸. 催化学报 (Lü J, Shi L, Yang H E, Ren J G, Li H L, Peng Sh Y. Chin J Catal), 1997, 18: 388
5 吕剑, 石磊, 杨会娥, 陈蜀康, 任建纲, 李惠黎, 彭少逸. 催化学报 (Lü J, Shi L, Yang H E, Chen Sh K, Reng J G, Li H L, Peng Sh Y. Chin J Catal), 1996, 17: 459
6 吕剑, 石磊, 李惠黎, 彭少逸. 高等学校化学学报 (Lü J, Shi L, Li H L, Peng Sh Y. Chem J Chin Univ), 1998, 19: 1677
7 Lü J, Yang H E, Chen Sh K, Shi L, Ren J G, Li H L, Peng Sh Y. Catal Lett, 1996, 41: 221
8 蔚辰刚, 谢冠群, 周强, 王树华, 罗孟飞. 工业催化 (Wei Ch G, Xie G Q, Zhou Q, Wang Sh H, Luo M F. Ind Catal), 2012, 20: 57
9 Rüdiger S, Groß U, Kemnitz E. J Fluor Chem, 2007, 128: 353
10 胥会祥, 吕剑. 催化学报 (Xu H X, Lü J. Chin J Catal), 2003, 24: 379
11 胥会祥,吕剑. 催化学报 (Xu H X, Lü J. Chin J Catal), 2002, 23: 345
12 Zielinski M, Wojciechowska M. Catal Today, 2011, 169: 175
13 Teinz K, Wuttke S, Börno F, Eicher J, Kemnitz E. J Catal, 2011, 282: 175
14 Kemnitz E, Wuttke S, Coman S M. Eur J Inorg Chem, 2011: 4773
15 Murthy J K, Groß U, Rudiger S, Unverena E, Unger W, Kemnitz E. Appl Catal A, 2005, 282: 85
16 Cho D H, Yim S D, Cha G H, Lee J S, Kim Y G, Chung J S, Nam I-S. J Phys Chem A, 1998, 102: 7913
17 张学良. 化工生产与技术 (Zhang X L. Chem Product Technol), 2004, 11(6): 7
18 Kim H S, Lee B G, Kim H, Lee H. US 5 672 789. 1997
19 Lee H J, Kim H S, Chung M J, Lee B G. GB 2 295 556. 1996
20 Wanzke W, Siegemund G, Schmieder W. EP 417 680. 1991
21 Busca G. Catal Today, 1998, 41: 191
22 辛勤, 罗孟飞. 现代催化研究方法. 北京: 科学出版社 (Xin Q, Luo M F. Modern Characterization Methods for Catalysis. Beijing: Sci Press), 2009. 315
23 Patil P T, Dimitrov A, Kirmse H, Neumann W, Kemnitz E. Appl Catal B, 2008,78: 80

[1]	Behnaz Rahmani Didar, Axel Groß. Solvation structure and dynamics of Li and LiO₂and their transformation in non-aqueous organic electrolyte solvents from first-principles simulations [J]. Chinese Journal of Catalysis, 2022, 43(11): 2850-2857.
[2]	Nagaraju Pasupulety, Muhammad A. Daous, Abdulrahim A. Al-Zahrani, Hafedh Driss, Lachezar A. Petrov. Alumina-boron catalysts for oxidative dehydrogenation of ethylbenzene to styrene: Influence of alumina-boron composition and method of preparation on catalysts properties [J]. Chinese Journal of Catalysis, 2019, 40(11): 1758-1765.
[3]	Huanwang Jing, Xiaomei Wang, Yong Liu, Anqi Wang. Preparation of magnetic nanocomposites of solid acid catalysts and their applicability in esterification [J]. Chinese Journal of Catalysis, 2015, 36(2): 244-251.
[4]	Lei Shi, Zhen-Hao Hu, Gao-Ming Deng, Wen-Cui Li. Carbon monoxide oxidation on copper manganese oxides prepared by selective etching with ammonia [J]. Chinese Journal of Catalysis, 2015, 36(11): 1920-1927.
[5]	FANG Rui-Mei, HE Sheng-Nan, CUI Ya-Juan, SHI Zhong-Hua, GONG Mao-Chu, CHEN Yao-Qiang. (CeO₂-ZrO₂-Al₂O₃)-(La₂O₃-Al₂O₃) Complex Oxide Supported Pd Close-Coupled Catalysts: Effects of Support Calcination Temperature [J]. Chinese Journal of Catalysis, 2012, 33(6): 1014-1019.
[6]	YANG Zheng-Zheng, CHEN Yong-Dong, ZHAO Ming, ZHOU Ju-Fa, GONG Mao-Chu, CHEN Yao-Qiang. Preparation and Properties of Pt/Zr_xTi_1-xO₂ Catalysts with Low-Level SO₂Oxidation Activity for Diesel Oxidation [J]. Chinese Journal of Catalysis, 2012, 33(5): 819-826.
[7]	YAN Chao-Yang, LAN Li, CHEN Shan-Hu, ZHAO Ming, GONG Mao-Chu, CHEN Yao-Qiang-*. Preperation of High Performance Ce_0.5Zr_0.5O₂ Rare Earth Oxygen Storage Material and Its Supported Pd-Only Three-Way Catalyst [J]. Chinese Journal of Catalysis, 2012, 33(2): 336-341.
[8]	Sandip RATHOD;Balasaheb ARBAD;Machhindra LANDE. Preparation, Characterization, and Catalytic Application of a Nanosized Ce1MgxZr1-xO2 Solid Heterogeneous Catalyst for the Synthesis of Tetrahydrobenzo[b]pyran Derivatives [J]. Chinese Journal of Catalysis, 2010, 31(6): 631-636.
[9]	ZHAO Ming;WANG Hairong;CHEN Shanhu;YAO Yanling;GONG Maochu;CHEN Yaoqiang*. Preparation of CeO2-ZrO2-Al2O3 and Catalytic Performance of Palla-dium-Based Three-Way Catalyst [J]. Chinese Journal of Catalysis, 2010, 31(4): 429-434.
[10]	XIA Wangqiong;TANG Haodong;LIN Shengda;CEN Yaqing;LIU Huazhang*. Phase Transformation of Cu/ZnO Catalyst Precursors for Methanol Synthesis [J]. Chinese Journal of Catalysis, 2009, 30(9): 879-884.
[11]	WANG Guangping;QIU Wei;REN Chengjun*;CHAI Junjun;DONG Wei;CHEN Yaoqiang;GONG Maochu. Thermo-photocatalytic Degradation of Benzene on Zr-Doped Pt/TiO2 with Ana-tase/Rutile Mixture Phase [J]. Chinese Journal of Catalysis, 2009, 30(9): 913-918.
[12]	LUO Xiaojun;WANG Rong*;LIN Jianxin;WEI Kemei. Effect of Precipitation Methods on Catalytic Activity of Ru/CeO2 Catalyst for Ammonia Synthesis [J]. Chinese Journal of Catalysis, 2009, 30(11): 1125-1130.
[13]	WANG Kunyuan;WANG Xiangsheng*;LI Gang;LONG Huayun. Characterization and Catalytic Activity of Silylated Nanoscale ZSM-5 [J]. Chinese Journal of Catalysis, 2007, 28(7): 617-621.
[14]	GUO Xikun*;WANG Xiaoming;CHEN Qingsheng. Structure of Sn/Al2O3 Catalyst and Its Activity for Selective Catalytic Reduction of NO [J]. Chinese Journal of Catalysis, 2007, 28(5): 417-422.