Operando characterization of catalysts through use of a portable microreactor

Zhao, Shen; Li, Yuanyuan; Stavitski, Eli; Tappero, Ryan; Crowley, Stephen; Castaldi, Marco J.; Zakharov, Dmitri N.; Nuzzo, Ralph G.; Frenkel, Anatoly I.; Stach, Eric A.

doi:10.1002/cctc.201500688

Title: Operando characterization of catalysts through use of a portable microreactor

Journal Article · Fri Oct 09 00:00:00 EDT 2015 · ChemCatChem

DOI:https://doi.org/10.1002/cctc.201500688· OSTI ID:1224779

Zhao, Shen ^[1]; Li, Yuanyuan ^[2]; Stavitski, Eli ^[3]; Tappero, Ryan ^[3]; Crowley, Stephen ^[4]; Castaldi, Marco J. ^[4]; Zakharov, Dmitri N. ^[3]; Nuzzo, Ralph G. ^[5]; Frenkel, Anatoly I. ^[6]; Stach, Eric A. ^[6]

Univ. of Illinois, Urbana, IL (United States); Brookhaven National Lab., Upton, NY (United States)
Yeshiva Univ., New York, NY (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States)
City College of New York, New York, NY (United States)
Univ. of Illinois, Urbana, IL (United States)
Yeshiva Univ., New York, NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)

To provide new understandings of the mechanisms of catalytic reactions, improved methods are needed than can monitor changes in the electronic, structural and chemical properties of catalysts, doing so in the operando conditions in which catalysts work. We describe here a microreactor-based approach that integrates the capabilities of advanced x-ray, electron, optical and gas-phase compositional analysis techniques in operando conditions. For several exemplary catalytic systems, we demonstrate how this approach enables characterization of three major factors contributing to structure-property correlations evidenced in heterogeneously catalyzed reactions, namely: the atomic structure and elemental compositions of nanocatalysts; the physiochemical properties of the support and catalyst-support interfaces; and the gas and surface-phase chemistry occurring under operando conditions. We highlight the generality of the approach as well as outline opportunities for future developments.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: SC0012704; SC0012335; FG02-03ER15476

OSTI ID:: 1224779

Alternate ID(s):: OSTI ID: 1239774

Report Number(s):: BNL-108512-2015-JA; BNL-108433-2015-JA; KC0403020

Journal Information:: ChemCatChem, Journal Name: ChemCatChem; ISSN 1867-3880

Publisher:: ChemPubSoc EuropeCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 20 works

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