Understanding low temperature oxidation activity of nanoarray-based monolithic catalysts: from performance observation to structural and chemical insights

Du, Shoucheng; Tang, Wenxiang; Guo, Yanbing; Binder, Andrew; Kyriakidou, Eleni A.; Toops, Todd J.; Wang, Sibo; Ren, Zheng; Hoang, Son; Gao, Pu-Xian

doi:10.1007/s40825-016-0054-y

Title: Understanding low temperature oxidation activity of nanoarray-based monolithic catalysts: from performance observation to structural and chemical insights

Journal Article · Fri Dec 30 00:00:00 EST 2016 · Emission Control Science & Technology

DOI:https://doi.org/10.1007/s40825-016-0054-y· OSTI ID:1356946

Du, Shoucheng ^[1]; Tang, Wenxiang ^[1]; Guo, Yanbing ^[1]; Binder, Andrew ^[2]; Kyriakidou, Eleni A. ^[2]; Toops, Todd J. ^[2]; Wang, Sibo ^[1]; Ren, Zheng ^[1]; Hoang, Son ^[1]; Gao, Pu-Xian ^[1]

Univ. of Connecticut, Storrs, CT (United States). Dept. of Materials Science and Engineering & Inst. of Materials Science
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). National Transportation Research Center (NTRC)

Monolithic catalysts have been widely used in automotive, chemical, and energy relevant industries. Nano-array based monolithic catalysts have been developed, demonstrating high catalyst utilization efficiency and good thermal/mechanical robustness. Compared with the conventional wash-coat based monolithic catalysts, they have shown advances in precise and optimum microstructure control and feasibility in correlating materials structure with properties. Recently, the nano-array based monolithic catalysts have been studied for low temperature oxidation of automotive engine exhaust and exhibited interesting and promising catalytic activities. Here, this review focuses on discussing the key catalyst structural parameters that affect the catalytic performance from the following aspects, (1) geometric shape and crystal planes, (2) guest atom doping and defects, (3) array size and size-assisted active species loading, and (4) the synergy effect of metal oxide in composite nano-arrays. Prior to the discussion, an overview of the current status of synthesis and development of the nano-array based monolithic catalysts is introduced. The performance of these materials in low temperature simulated engine exhaust oxidation is also demonstrated. Finally, we hope this review will elucidate the science and chemistry behind the good oxidation performance of the nanoarray- based monolithic catalysts, and serve as a timely and useful research guide for rational design and further improvement of the nano-array based monolithic catalysts for automobile emission control.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Fuels, Engines and Emissions Research Center (FEERC); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). National Transportation Research Center (NTRC)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE); National Science Foundation (NSF)

Grant/Contract Number:: AC05-00OR22725; EE0006854; CBET-1344792

OSTI ID:: 1356946

Journal Information:: Emission Control Science & Technology, Vol. 3, Issue 1; ISSN 2199-3629

Publisher:: SpringerCopyright Statement

Country of Publication:: United States

Language:: English

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Smog Alert Elsom, Derek Taylor and Francis Group https://doi.org/10.4324/9781315070469	book	April 2014

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Zeolite Beta Doped with La, Fe, and Pd as a Hydrocarbon Trap Jonsson, Rasmus; Woo, Jungwon; Skoglundh, Magnus Catalysts, Vol. 10, Issue 2 https://doi.org/10.3390/catal10020173	journal	February 2020

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