A microreactor array for spatially resolved measurement of catalytic activity for high-throughput catalysis science

Petro Kondratyuk; Gamze Gumuslu; Shantanu Shukla; James B. Miller; Bryan D. Morreale; Andrew J. Gellman

doi:10.1016/j.jcat.2012.12.015

A microreactor array for spatially resolved measurement of catalytic activity for high-throughput catalysis science

Petro Kondratyuk, Gamze Gumuslu, Shantanu Shukla, James B. Miller, Bryan D. Morreale, Andrew J. Gellman^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

We describe a 100-channel microreactor array capable of spatially resolved measurement of catalytic activity across the surface of a flat substrate. When used in conjunction with a composition spread alloy film (CSAF, e.g., Pd _xCu_yAu_1-x-y) across which component concentrations vary smoothly, such measurements permit high-throughput analysis of catalytic activity and selectivity as a function of catalyst composition. In the reported implementation, the system achieves spatial resolution of 1 mm² over a 10 × 10 mm² area. During operation, the reactant gases are delivered at constant flow rate to 100 points of differing composition on the CSAF surface by means of a 100-channel microfluidic device. After coming into contact with the CSAF catalyst surface, the product gas mixture from each of the 100 points is withdrawn separately through a set of 100 isolated channels for analysis using a mass spectrometer. We demonstrate the operation of the device on a Pd_xCu _yAu_1-x-y CSAF catalyzing the H₂-D₂ exchange reaction at 333 K. In essentially a single experiment, we measured the catalytic activity over a broad swathe of concentrations from the ternary composition space of the Pd_xCu _yAu_1-x-y alloy.

Original language	English
Pages (from-to)	55-62
Number of pages	8
Journal	Journal of Catalysis
Volume	300
DOIs	https://doi.org/10.1016/j.jcat.2012.12.015
Publication status	Published - Apr 2013
Externally published	Yes

Funding

This project was funded, in part, by the Department of Energy, National Energy Technology Laboratory, an agency of the United States Government, through a support contract with URS Energy & Construction, Inc. Neither the United States Government nor any agency thereof, nor any of their employees, nor URS Energy & Construction, Inc., nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.

Funders	Funder number
URS Energy & Construction, Inc.
U.S. Department of Energy
National Energy Technology Laboratory

Keywords

Catalysis
Composition libraries
Composition spread alloy films
H-D exchange
High-throughput
Hydrogen purification
Microreactor

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10.1016/j.jcat.2012.12.015

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title = "A microreactor array for spatially resolved measurement of catalytic activity for high-throughput catalysis science",

abstract = "We describe a 100-channel microreactor array capable of spatially resolved measurement of catalytic activity across the surface of a flat substrate. When used in conjunction with a composition spread alloy film (CSAF, e.g., Pd xCuyAu1-x-y) across which component concentrations vary smoothly, such measurements permit high-throughput analysis of catalytic activity and selectivity as a function of catalyst composition. In the reported implementation, the system achieves spatial resolution of 1 mm2 over a 10 × 10 mm2 area. During operation, the reactant gases are delivered at constant flow rate to 100 points of differing composition on the CSAF surface by means of a 100-channel microfluidic device. After coming into contact with the CSAF catalyst surface, the product gas mixture from each of the 100 points is withdrawn separately through a set of 100 isolated channels for analysis using a mass spectrometer. We demonstrate the operation of the device on a PdxCu yAu1-x-y CSAF catalyzing the H2-D2 exchange reaction at 333 K. In essentially a single experiment, we measured the catalytic activity over a broad swathe of concentrations from the ternary composition space of the PdxCu yAu1-x-y alloy.",

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author = "Petro Kondratyuk and Gamze Gumuslu and Shantanu Shukla and Miller, {James B.} and Morreale, {Bryan D.} and Gellman, {Andrew J.}",

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doi = "10.1016/j.jcat.2012.12.015",

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AU - Morreale, Bryan D.

AU - Gellman, Andrew J.

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N2 - We describe a 100-channel microreactor array capable of spatially resolved measurement of catalytic activity across the surface of a flat substrate. When used in conjunction with a composition spread alloy film (CSAF, e.g., Pd xCuyAu1-x-y) across which component concentrations vary smoothly, such measurements permit high-throughput analysis of catalytic activity and selectivity as a function of catalyst composition. In the reported implementation, the system achieves spatial resolution of 1 mm2 over a 10 × 10 mm2 area. During operation, the reactant gases are delivered at constant flow rate to 100 points of differing composition on the CSAF surface by means of a 100-channel microfluidic device. After coming into contact with the CSAF catalyst surface, the product gas mixture from each of the 100 points is withdrawn separately through a set of 100 isolated channels for analysis using a mass spectrometer. We demonstrate the operation of the device on a PdxCu yAu1-x-y CSAF catalyzing the H2-D2 exchange reaction at 333 K. In essentially a single experiment, we measured the catalytic activity over a broad swathe of concentrations from the ternary composition space of the PdxCu yAu1-x-y alloy.

AB - We describe a 100-channel microreactor array capable of spatially resolved measurement of catalytic activity across the surface of a flat substrate. When used in conjunction with a composition spread alloy film (CSAF, e.g., Pd xCuyAu1-x-y) across which component concentrations vary smoothly, such measurements permit high-throughput analysis of catalytic activity and selectivity as a function of catalyst composition. In the reported implementation, the system achieves spatial resolution of 1 mm2 over a 10 × 10 mm2 area. During operation, the reactant gases are delivered at constant flow rate to 100 points of differing composition on the CSAF surface by means of a 100-channel microfluidic device. After coming into contact with the CSAF catalyst surface, the product gas mixture from each of the 100 points is withdrawn separately through a set of 100 isolated channels for analysis using a mass spectrometer. We demonstrate the operation of the device on a PdxCu yAu1-x-y CSAF catalyzing the H2-D2 exchange reaction at 333 K. In essentially a single experiment, we measured the catalytic activity over a broad swathe of concentrations from the ternary composition space of the PdxCu yAu1-x-y alloy.

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A microreactor array for spatially resolved measurement of catalytic activity for high-throughput catalysis science

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Keywords

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