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Catalyst synthesis and evaluation using an integrated atomic layer deposition synthesis-catalysis testing tool.

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posted on 16.05.2016, 00:00 by J Camacho-Bunquin, H Shou, P Aich, DR Beaulieu, H Klotzsch, S Bachman, CL Marshall, A Hock, P Stair
An integrated atomic layer deposition synthesis-catalysis (I-ALD-CAT) tool was developed. It combines an ALD manifold in-line with a plug-flow reactor system for the synthesis of supported catalytic materials by ALD and immediate evaluation of catalyst reactivity using gas-phase probe reactions. The I-ALD-CAT delivery system consists of 12 different metal ALD precursor channels, 4 oxidizing or reducing agents, and 4 catalytic reaction feeds to either of the two plug-flow reactors. The system can employ reactor pressures and temperatures in the range of 10(-3) to 1 bar and 300-1000 K, respectively. The instrument is also equipped with a gas chromatograph and a mass spectrometer unit for the detection and quantification of volatile species from ALD and catalytic reactions. In this report, we demonstrate the use of the I-ALD-CAT tool for the synthesis of platinum active sites and Al2O3 overcoats, and evaluation of catalyst propylene hydrogenation activity.

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The work at Argonne National Laboratory was supportedby the U.S. Department of Energy, Office of the Basic EnergySciences, Chemical Sciences under Contract No. DE-AC-02-6H11357. High Resolution TEM images were obtained atUIC’s Research Resources Center facility using the JEM-3010(a 300 kV transmission electron microscope with a LaB6electron source).

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Publisher Statement

This is the copy of an article published in the Review of Scientific Instruments © 2015 American Institute of Physics Publications.

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American Institute of Physics

issn

0034-6748

Issue date

01/08/2015

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