Acidity Characterization of HZSM-35 Zeolite by Solid-State NMR

Abstract

Abstract: The diffusion of deuterated pyridine molecules into the cavities of eight-membe red ring pores was very slow, and it took a long time to reach the adsorption eq u ilibrium at 300 ℃. After adsorption of deuterated pyridine, the 1H MAS NM R spectra showed that there were two types of Brnsted acidic sites with differ ent strength in both the 10-MR channels and 8-MR cavities.

Key words: HZSM-35 zeolite, acidity, solid-state nuclear magnetic resonance, probe molecule, trimethylphosphine, deuterated pyridine

LIU Yong;ZHANG Weiping*;XIE Sujuan;XU Longya;HAN Xiuwen;BAO Xinhe*. Acidity Characterization of HZSM-35 Zeolite by Solid-State NMR[J]. Chinese Journal of Catalysis, 2009, 30(2): 119-123.

×
share this article

Add to citation manager EndNote|Ris|BibTeX

URL: https://www.cjcatal.com/EN/

https://www.cjcatal.com/EN/Y2009/V30/I2/119

[1]	Peerapol Pornsetmetakul, Ferdy J. A. G. Coumans, Rim C. J. van de Poll, Anna Liutkova, Duangkamon Suttipat, Brahim Mezari, Chularat Wattanakit, Emiel J. M. Hensen. Post-synthesis metal (Sn, Zr, Hf) modification of BEA zeolite: Combined Lewis and Brønsted acidity for cascade catalysis [J]. Chinese Journal of Catalysis, 2023, 55(12): 200-215.
[2]	Chuncheng Liu, Evgeny A. Uslamin, Sophie H. van Vreeswijk, Irina Yarulina, Swapna Ganapathy, Bert M. Weckhuysen, Freek Kapteijn, Evgeny A. Pidko. An integrated approach to the key parameters in methanol-to-olefins reaction catalyzed by MFI/MEL zeolite materials [J]. Chinese Journal of Catalysis, 2022, 43(7): 1879-1893.
[3]	Kaipeng Cao, Dong Fan, Shu Zeng, Benhan Fan, Nan Chen, Mingbin Gao, Dali Zhu, Linying Wang, Peng Tian, Zhongmin Liu. Organic-free synthesis of MOR nanoassemblies with excellent DME carbonylation performance [J]. Chinese Journal of Catalysis, 2021, 42(9): 1468-1477.
[4]	Aiping Jia, Yunshang Zhang, Tongyang Song, Yiming Hu, Wanbin Zheng, Mengfei Luo, Jiqing Lu, Weixin Huang. The effects of TiO₂ crystal-plane-dependent Ir-TiO_x interactions on the selective hydrogenation of crotonaldehyde over Ir/TiO₂ catalysts [J]. Chinese Journal of Catalysis, 2021, 42(10): 1742-1754.
[5]	Wen-Min Liao, Pei-Pei Zhao, Bing-Heng Cen, Ai-Ping Jia, Ji-Qing Lu, Meng-Fei Luo. Co-Cr-O mixed oxides for low-temperature total oxidation of propane: Structural effects, kinetics, and spectroscopic investigation [J]. Chinese Journal of Catalysis, 2020, 41(3): 442-453.
[6]	Lulu Li, Peixiao Li, Wei Tan, Kaili Ma, Weixin Zou, Changjin Tang, Lin Dong. Enhanced low-temperature NH₃-SCR performance of CeTiO_x catalyst via surface Mo modification [J]. Chinese Journal of Catalysis, 2020, 41(2): 364-373.
[7]	Xiaojiang Yao, Jun Cao, Li Chen, Keke Kang, Yang Chen, Mi Tian, Fumo Yang. Doping effect of cations (Zr⁴⁺, Al³⁺, and Si⁴⁺) on MnO_x/CeO₂ nano-rod catalyst for NH₃-SCR reaction at low temperature [J]. Chinese Journal of Catalysis, 2019, 40(5): 733-743.
[8]	Xin-Qian Gao, Wen-Duo Lu, Shou-Zhao Hu, Wen-Cui Li, An-Hui Lu. Rod-shaped porous alumina-supported Cr₂O₃ catalyst with low acidity for propane dehydrogenation [J]. Chinese Journal of Catalysis, 2019, 40(2): 184-191.
[9]	Zhanling Ma, Xiangang Ma, Hongchao Liu, Wenliang Zhu, Xinwen Guo, ZhongminLiu. One-step aldol condensation reaction of dimethoxymethane and methyl acetate over supported Cs/ZSM-35 zeolite catalysts [J]. Chinese Journal of Catalysis, 2018, 39(6): 1129-1137.
[10]	Huazhen Chang, Chuanning Shi, Mingguan Li, Tao Zhang, Chizhong Wang, Lilong Jiang, Xiuyun Wang. The effect of cations (NH₄⁺, Na⁺, K⁺, and Ca²⁺) on chemical deactivation of commercial SCR catalyst by bromides [J]. Chinese Journal of Catalysis, 2018, 39(4): 710-717.
[11]	Lei Chen, Ding Weng, Jiadao Wang, Duan Weng, Li Cao. Low-temperature activity and mechanism of WO₃-modified CeO₂-TiO₂ catalyst under NH₃-NO/NO₂ SCR conditions [J]. Chinese Journal of Catalysis, 2018, 39(11): 1804-1813.
[12]	Xiaojiang Yao, Li Chen, Tingting Kong, Shimin Ding, Qiong Luo, Fumo Yang. Support effect of the supported ceria-based catalysts during NH₃-SCR reaction [J]. Chinese Journal of Catalysis, 2017, 38(8): 1423-1430.
[13]	Tiejing Hu, Jian Liu, Changyan Cao, Weiguo Song. Synthesis of ZSM-5 monoliths with hierarchical porosity through a steam-assisted crystallization method using sponges as scaffolds [J]. Chinese Journal of Catalysis, 2017, 38(5): 872-878.
[14]	Xiaojiang Yao, Kaili Ma, Weixin Zou, Shenggui He, Jibin An, Fumo Yang, Lin Dong. Influence of preparation methods on the physicochemical properties and catalytic performance of MnO_x-CeO₂ catalysts for NH₃-SCR at low temperature [J]. Chinese Journal of Catalysis, 2017, 38(1): 146-159.
[15]	Meixia Wang, Shouying Huang, Jing Lü, Zaizhe Cheng, Ying Li, Shengping Wang, Xinbin Ma. Modifying the acidity of H-MOR and its catalytic carbonylation of dimethyl ether [J]. Chinese Journal of Catalysis, 2016, 37(9): 1530-1538.

Acidity Characterization of HZSM-35 Zeolite by Solid-State NMR

PDF (PC)

Knowledge

Cited

Abstract

Cite this article

share this article

share this article

References

Related Articles 15

Recommended Articles

Metrics