Catalytic combustion of lean methane over a core-shell structured Pd-Co3O4@SiO2 catalyst

LU Nan; WU Zhi-wei; LEI Li-jun; QIN Zhang-feng; ZHU Hua-qing; LUO Li; FAN Wei-bin; WANG Jian-guo

Volume 43 Issue 09

Sep. 2015

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Article Navigation > Journal of Fuel Chemistry and Technology > 2015 > 43(09): 1120-1127

LU Nan, WU Zhi-wei, LEI Li-jun, QIN Zhang-feng, ZHU Hua-qing, LUO Li, FAN Wei-bin, WANG Jian-guo. Catalytic combustion of lean methane over a core-shell structured Pd-Co3O4@SiO2 catalyst[J]. Journal of Fuel Chemistry and Technology, 2015, 43(09): 1120-1127.

Citation:

LU Nan, WU Zhi-wei, LEI Li-jun, QIN Zhang-feng, ZHU Hua-qing, LUO Li, FAN Wei-bin, WANG Jian-guo. Catalytic combustion of lean methane over a core-shell structured Pd-Co₃O₄@SiO₂ catalyst[J]. Journal of Fuel Chemistry and Technology, 2015, 43(09): 1120-1127.

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Catalytic combustion of lean methane over a core-shell structured Pd-Co₃O₄@SiO₂ catalyst

1.
State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China;
2.
University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2015-03-09
Rev Recd Date: 2015-05-18
Publish Date: 2015-09-30

Abstract

Abstract

A core-shell structured Pd-Co₃O₄@SiO₂ catalyst was prepared by a simple self-assemble method and used in lean methane combustion. The results of catalytic tests indicate that the core-shell Pd-Co₃O₄@SiO₂ catalyst exhibits high activity in lean methane combustion and superior stability at high temperature. The results of TEM, XRD, and H₂-TPR characterization suggest that the high activity of Pd-Co₃O₄@SiO₂ is mainly ascribed to the strong interaction between CoO_x and PdO species inside the SiO₂ shell. Meanwhile, as the active Pd and CoO_x species in Pd-Co₃O₄@SiO₂ are enshielded in the core-shell structure, which is effective to protect the active phase from sintering at high temperature, the core-shell structured Pd-Co₃O₄@SiO₂ catalyst is thus far superior in thermal stability against high temperature to the supported Pd/Co₃O₄@SiO₂ and Pd/Co₃O₄-SiO₂ catalysts.
- Pd-Co₃O₄@SiO₂,
- lean methane,
- catalytic combustion,
- core-shell structure,
- thermal stability,
- self-assemble method

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References(18)

References

WANG B, QIN Z F, WANG G F, WU Z W, FAN W B, ZHU H Q, LI S N, ZHANG Y G, LI Z K, WANG J G. Catalytic combustion of lean methane at low temperature over palladium on a CoO_x-SiO₂ composite support[J]. Catal Lett, 2013, 143(5): 411-417.

王珂, 林志娇, 江志东. 甲烷催化燃烧整体型催化剂研究进展[J]. 天然气化工, 2009, 34(1): 71-78. (WANG Ke, LIN Zhi-jiao, JIANG Zhi-dong. Progress in monolithic catalysts for catalytic combustion of methane[J]. Nat Gas Chem Ind, 2009, 34(1): 71-78.)

王胜, 高典楠, 张纯希, 袁中山, 张朋, 王树东. 贵金属甲烷燃烧催化剂[J]. 化学进展, 2008, 20(6): 789-797. (WANG Sheng, GAO Dian-nan, ZHANG Chun-xi, YUAN Zhong-shan, ZHANG peng, WANG Shu-dong. Low-temperature catalytic combustion of methane over noble metal catalyst[J]. Prog Chem, 2008, 20(6): 789-797.)

LYUBOVSKY M, SMITH L L, CASTALDI M, KARIM H, NENTWICK B, ETEMAD S, LAPUERRE R, PFEFFERLE W C. Catalytic combustion over platinum group catalysts: Fuel-lean versus fuel-rich operation[J]. Catal Today, 2003, 83(1/4): 71-84.

邓积光, 刘雨溪, 张磊, 戴洪兴. 天然气催化燃烧催化剂的研究进展(上)[J]. 石油化工, 2013, 42(1): 1-7. (DENG Ji-guang, LIU Yu-xi, ZHANG Lei, DAI Hong-xing. Advancements in catalysts for catalytic combustion of natural gas[J]. Petrochem Technol, 2013, 42(1): 1-7.)

THEVENIN P O, ALCALDE A, PETTERSSON L J, JARAS S G, FIERRO J. Catalytic combustion of methane over cerium-doped palladium catalysts[J]. J Catal, 2003, 215(1): 78-86.

DEMOULIN O, CLEF B L, NAVEZ M, RUIZ P. Combustion of methane, ethane and propane and of mixtures of methane with ethane or propane on Pd/γ-Al₂O₃ catalysts[J]. Appl Catal A: Gen, 2008, 344(1/2): 1-9.

PECCHI G, REYES P, CONCHA I, FIERRO J. Methane combustion on Pd/SiO₂ sol gel catalysts[J]. J Catal, 1998, 179(1): 309-314.

GUO X N, ZHI G J, YAN X Y, JIN G Q, GUO X Y, BRAULT P. Methane combustion over Pd/ZrO₂/SiC, Pd/CeO₂/SiC, and Pd/Zr_0.5Ce_0.5O₂/SiC catalysts[J]. Catal Commun, 2011, 12(10): 870-874.

HU L H, PENG Q, LI Y D. Selective synthesis of Co₃O₄ nanocrystal with different shape and crystal plane effect on catalytic property for methane combustion[J]. J Am Chem Soc, 2008, 130(48): 16136-16237.

KRAIKUL N, JITKARNKA S, LUENGNARUEMITCHAI A. Catalytic methane combustion on Pd-Pt-La catalysts and their surface models[J]. Appl Catal B: Environ, 2005, 58(1/2): 143-152.

PERSSON K, ERSSON A, JANSSON K, IVERLUND N, JARAS S. Influence of co-metal on bimetallic palladium catalysts for methane combustion[J]. J Catal, 2005, 231(1): 139-150.

CARGNELLO M, JAEN J J D, GARRIDO J C H, BAKHMUTSKY K, MONTINI T, GAMEZ J J C, GORTE R J, FORNASIERO P. Exceptional activity for methane combustion over modular Pd@CeO₂ subunits on functionalized Al₂O₃[J]. Science, 2012, 337(6095): 713-717.

FERRER V, FINOL D, RADRIGUEZ D, DOMINGUEZ F, SOLANO R, ZARRAGA J, SANCHEZ J. Chemical characterization and catalytic activity of Pd-supported catalysts on Pd/Ce_0.39Zr_0.61O_x/SiO₂[J]. Catal Lett, 2009, 132(1/2): 292-298.

FARRAUTO R J, HOBSON M C, KENNELLY T, WATERMAN E M. Catalytic chemistry of supported palladium for combustion of methane[J]. Appl Catal A: Gen, 1992, 81(2): 227-237.

ZENG B, HOU B, JIA L T, WANG J G, CHEN C B, LI D B, SUN Y H. The intrinsic effects of shell thickness on the Fischer-Tropsch synthesis over core-shell structured catalysts[J]. Catal Sci Technol, 2013, 3(12): 3250-3255.

ZAVYALOVA U, SCHOLZ P, ONDRUSCHKA B. Influence of cobalt precursor and fuels on the performance of combustion synthesized Co₃O₄/γ-Al₂O₃ catalysts for total oxidation of methane[J]. Appl Catal A: Gen, 2007, 323: 226-233.

LIN W, LIN L, ZHU Y X, XIE Y C, SCHEURELL K, KERNNITZ E. Novel Pd/TiO₂-ZrO₂ catalysts for methane total oxidation at low temperature and their ¹⁸O-isotope exchange behavior[J]. J Mol Catal A, 2005, 226(2): 263-268.

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