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Catalyst Synthesis and Evaluation

GEMStar I-ALD-CAT (DualCat System)
An integrated atomic layer deposition synthesis and catalysis testing tool

Developed in partnership with Argonne National Laboratory

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.

Review of Scientific Instruments 86, 084103 (2015); doi:
2015 Argonne, Catalyst synthesis and evaluation using an integrated ALD synthesis–catalysis tool
2015 Argonne, Prediction and accelerated laboratory discovery of heterogeneous catalysts