Methane combustion over palladium catalyst within the confined space of MFI zeolite

doi:10.1016/S1872-2067(20)63775-5

Abstract

Abstract:

Isolated cationic Pd species encapsulated in MFI zeolite, i.e., Pd@MFI, have been successfully prepared via in situ hydrothermal route followed by oxidative treatment. The as-prepared Pd@MFI samples are investigated as promising catalysts in the reaction of methane combustion. Typically, Pd@H-ZSM-5 shows remarkable activity in methane catalytic combustion with a low apparent activation energy value of 70.7 kJ/mol as well as good catalytic stability even in excess water vapor. Detailed characterization results demonstrate the strong interaction between Pd sites and zeolite framework in Pd@ZSM-5 and the efficient stabilization of isolated Pd sites by zeolite thereof. Spectroscopy analyses reveal that the presence of Brønsted acid sites is beneficial to methane adsorption and its subsequent activation on adjacent Pd sites, constructing cooperation between Brønsted acid sites and Pd sites within the confined space of MFI zeolite toward high-efficiency methane catalytic combustion. The reaction mechanism of methane combustion catalyzed by Pd@H-ZSM-5 model catalyst is finally discussed.

Key words: Methane combustion, Palladium catalyst, Zeolite, Encapsulation, Br?nsted acid sites

Mingyang Gao, Zhongmiao Gong, Xuefei Weng, Weixiang Shang, Yuchao Chai, Weili Dai, Guangjun Wu, Naijia Guan, Landong Li. Methane combustion over palladium catalyst within the confined space of MFI zeolite[J]. Chinese Journal of Catalysis, 2021, 42(10): 1689-1699.

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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(20)63775-5

https://www.cjcatal.com/EN/Y2021/V42/I10/1689

Figures/Tables 8

Fig. 1. (a) HAADF-STEM image and selected-area element mapping analyses of Pd@H-ZSM-5; (b) Cs-corrected STEM image of Pd@H-ZSM-5 with some isolated Pd species highlighted by yellow circle.

Fig. 2. NH3-TPD profiles (a), H2-TPR profiles (b), Pd 3d XPS (c), and FTIR spectra of CO adsorption (d) on Pd@H-ZSM-5 and Pd/H-ZSM-5 samples.

Fig. 3. (a) Methane combustion over H-ZSM-5 and Pd-containing MFI zeolites; (b) Arrhenius plots of methane oxidation catalyzed by Pd@Na-ZSM-5, Pd@H-ZSM-5 and Pd/H-ZSM-5. Reaction conditions: 1% CH4, 5% O2, He balance, GHSV = 60000 h-1.

Fig. 4. Influence of water vapor on methane combustion over Pd@H-ZSM-5 (a) and Pd/H-ZSM-5 (b); Stability test of Pd@H-ZSM-5 at 400 °C (c) and Pd/H-ZSM-5 at 450 °C (d) in methane combustion. Reaction conditions: 1% CH4, 5% O2, 0 or 5% H2O, He balance, GHSV = 60000 h-1.

Fig. 5. Reaction orders of CH4 and O2 in methane combustion over Pd@H-ZSM-5 (a,c) and Pd/H-ZSM-5 (b,d) catalysts at different temperatures. Reaction conditions: 0.2%-1% CH4, 5% O2, He balance, GHSV = 60000 h-1 (for measuring CH4 orders) or 1% CH4, 1%-5% O2, He balance, GHSV = 60000 h-1 (for measuring O2 orders).

Fig. 6. CH4-TPD (a) and O2-TPD (b) profiles on Pd@MFI and Pd/MFI zeolites.

Fig. 7. In situ Pd 3d NAP-XPS of Pd@H-ZSM-5 under reaction-relevant conditions.

Fig. 8. In situ DRIFT study of methane combustion over Pd@H-ZSM-5 (a), Pd/H-ZSM-5 (b), Pd@Na-ZSM-5 (c) and H-ZSM-5 (d) catalysts at different temperatures.

References

[1]	L. Sun, Y. Wang, N. Guan, L. Li, Energy Technol., 2020,8, 1900826.
[2]	M. Monai, T. Montini, R. J. Gorte, P. Fornasiero, Eur. J. Inorg. Chem., 2018,2018, 2884-2893.
[3]	M. Cargnello, J. J. D. Jaén, J. C. H. Garrido, K. Bakhmutsky, T. Montini, J. J. C. Gámez, R. J. Gorte, P. Fornasiero, Science, 2012,337, 713-717.
[4]	R. W. Howarth, R. Santoro, A. Ingraffea, Clim. Change, 2011,106, 679-690.
[5]	E. G. Nisbet, E. J. Dlugokencky, P. Bousquet, Science, 2014,343, 493-495.
[6]	T. V. Choudhary, S. Banerjee, V. R. Choudhary, Appl. Catal. A, 2002,234, 1-23.
[7]	R. Prasad, L. A. Kennedy, E. Ruckenstein, Catal. Rev. Sci. Eng., 1984,26, 1-58.
[8]	M. F. M. Zwinkels, S. G. Järås, P. G. Menon, T. A. Griffin, Catal. Rev. Sci. Eng., 1993,35, 319-358.
[9]	R. Burch, F. J. Urbano, P. K. Loader, Appl. Catal. A, 1995,123, 173-184.
[10]	F. H. Ribeiro, M. Chow, R. A. Dallabetta, J. Catal., 1994,146, 537-544.
[11]	P. Gélin, M. Primet, Appl. Catal. B, 2002,39, 1-37.
[12]	X. Li, X. Wang, K. Roy, J. A. van Bokhoven, L. Artiglia, ACS Catal., 2020,10, 5783-5792.
[13]	O. M’Ramadj, D. Li, X. Wang, B. Zhang, G. Lu, Catal. Commun., 2007,8, 880-884.
[14]	Y. Lou, J. Ma, W. Hu, Q. Dai, L. Wang, W. Zhan, Y. Guo, X. M. Cao, Y. Guo, P. Hu, G. Lu, ACS Catal., 2016,6, 8127-8139.
[15]	W. Wang, W. Zhou, W. Li, X. Xiong, Y. Wang, K. Cheng, J. Kang, Q. Zhang, Y. Wang, Appl. Catal. B, 2020,276, 119142.
[16]	J. B. Lim, D. Jo, S. B. Hong, Appl. Catal. B, 2017,2219, 155-162.
[17]	J. Yang, M. Peng, G. Ren, H. Qi, X. Zhou, J. Xu, F. Deng, Z. Chen, J. Zhang, K. Liu, X. Pan, W. Liu, Y. Su, W. Li, B. Qiao, D. Ma, T. Zhang, Angew. Chem. Int. Ed., 2020,59, 18522-18526.
[18]	A. W. Petrov, D. Ferri, F. Krumeich, M. Nachtegaal, J. A. van Bokhoven, O. Kröcher, Nat. Commun., 2018,9, 2545.
[19]	K. Murata, Y. Mahara, J. Ohyama, Y. Yamamoto, S. Arai, A. Satsuma, Angew. Chem. Int. Ed., 2017,56, 15993-15997.
[20]	J. Chen, J. Zhong, Y. Wu, W. Hu, P. Qu, X. Xiao, G. Zhang, X. Liu, Y. Jiao, L. Zhong, Y. Chen, ACS Catal., 2020,10, 10339-10349.
[21]	P. Losch, W. Huang, O. Vozniuk, E. D. Goodman, W. Schmidt, M. Cargnello, ACS Catal., 2019,9, 4742-4753.
[22]	M. Choi, Z. Wu, E. Iglesia, J. Am. Chem. Soc., 2010,132, 9129-9137.
[23]	S. Goel, S. I. Zones, E. Iglesia, J. Am. Chem. Soc., 2014,136, 15280-15290.
[24]	N. Wang, Q. Sun, R. Bai, X. Li, G. Guo, J. Yu, J. Am. Chem. Soc., 2016,138, 7484-7487.
[25]	Y. Chai, W. Shang, W. Li, G. Wu, W. Dai, N. Guan, L. Li, Adv. Sci., 2019,6, 1900299.
[26]	W. Dai, X. Sun, B. Tang, G. Wu, L. Li, N. Guan, M. Hunger, J. Catal., 2014,314, 10-20.
[27]	Y. Chai, S. Liu, Z. J. Zhao, J. Gong, W. Dai, G. Wu, N. Guan, L. Li, ACS Catal., 2018,8, 8578-8589.
[28]	M. Brun, A. Berthet, J. C. Bertolini, J. Electron Spectros. Relat. Phenomena, 1999,104, 55-60.
[29]	X. Wang, G. Wu, N. Guan, L. Li, Appl. Catal. B, 2012, 115-116, 7-15.
[30]	R. G. Rao, R. Blume, T. W. Hansen, E. Fuentes, K. Dreyer, S. Moldovan, O. Ersen, D. D. Hibbitts, Y. J. Chabal, R. Schlögl, J. P. Tessonnier, Nat. Commun., 2017,8, 340.
[31]	K. Khivantsev, N. R. Jaegers, L. Kovarik, J. C. Hanson, F. Tao, Y. Tang, X. Zhang, I. Z. Koleva, H. A. Aleksandrov, G. N. Vayssilov, Y. Wang, F. Gao, J. Szanyi, Angew. Chem. Int. Ed., 2018,57, 16672-16677.
[32]	T. Wei, J. Wang, D. W. Goodman, J. Phys. Chem. C, 2007,111, 8781-8788.
[33]	E. Garbowski, C. Feumi-Jantou, N. Mouaddib, M. Primet, Appl. Catal. A, 1994,109, 277-291.
[34]	J. Xu, L. Ouyang, W. Mao, X. J. Yang, X. C. Xu, J. J. Su, T. Z. Zhuang, H. Li, Y. F. Han, ACS Catal., 2012,2, 261-269.
[35]	Z. Zhang, X. Hu, Y. Zhang, L. Sun, H. Tian, X. Yang, Catal. Sci. Technol., 2019,9, 6404-6414.
[36]	S. Xie, Y. Liu, J. Deng, X. Zhao, J. Yang, K. Zhang, Z. Han, H. Arandiyan, H. Dai, Appl. Catal. B, 2017,206, 221-232.
[37]	R. J. Farrauto, M. C. Hobson, T. Kennelly, E. M. Waterman, Appl. Catal. A, 1992,81, 227-237.
[38]	L. M. T. Simplício, S. T. Brandão, E. A. Sales, L. Lietti, F. Bozon-Verduraz, Appl. Catal. B, 2006,63, 9-14.
[39]	D. Scarano, S. Bertarione, G. Spoto, A. Zecchina, C. O. Areán, Thin Solid Films, 2001,400, 50-55.
[40]	P. E. Martin, E. F. Barker, Phys. Rev., 1932,41, 291-303.
[41]	X. Zou, Z. Rui, S. Song, H. Ji, J. Catal., 2016,338, 192-201.
[42]	O. M’Ramadj, D. Li, X. Wang, B. Zhang, G. Lu, Catal. Commun., 2007,8, 880-884.
[43]	Q. Duan, C. Zhang, S. Sun, Y. Pan, X. Zhou, Y. Liu, K. Chen, C. Li, X. Wang, W. Li, J. Mater. Chem. A, 2020,8, 7395-7404.
[44]	T. Yan, L. Yang, W. Dai, C. Wang, G. Wu, N. Guan, M. Hunger, L. Li, J. Catal., 2018,367, 7-15.
[45]	G. Wu, N. Zhang, W. Dai, N. Guan, L. Li, ChemSusChem, 2018,11, 2179-2188.
[46]	Z. Li, G. Xu, G. B. Hoflund, Fuel Process. Technol., 2003,84, 1-11.
[47]	A. D. Mayernick, M. J. Janik, J. Catal., 2011,278, 16-25.
[48]	G. Busca, V. Lorenzelli, Mater. Chem., 1982,7, 89-126.
[49]	E. Finocchio, G. Busca, V. Lorenzelli, R. J. Willey, J. Catal., 1995,151, 204-215.
[50]	K. I. Hadjiivanov, G. N. Vayssilov, Adv. Catal., 2002,47, 307-511.