High-throughput screening of supported catalysts in massively parallel single-bead microreactors: Workflow aspects related to reactor bonding and catalyst preparation

Zech, Torsten; Bohner, Gunilla; Klein, Jens

doi:10.1016/j.cattod.2005.09.021

Cited by 19 publications

(5 citation statements)

References 16 publications

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“…During the last decade, high-throughput (HT) methods have become an established tool for the evaluation of heterogeneous catalysts for different chemical processes [3][4][5][6][7][8][9][10][11][12][13][14][15][16]. hte's approach to HT testing is based on a patent filed on 3 March 1998, which relates to parallel reactor systems for testing the activity of solid catalysts simultaneously exposed to gaseous feed streams [17].…”

Section: Introductionmentioning

confidence: 99%

High-Throughput Screening as a Supplemental Tool for the Development of Advanced Emission Control Catalysts: Methodological Approaches and Data Processing

Sundermann¹,

Gerlach²

2016

Catalysts

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Abstract:A high-throughput (HT) screening platform developed at hte with the application focus on automotive catalysis is described. hte HT units are configured for performing steady-state testing, as well as dynamic tests with fast feed switches, such as lean/rich excursions for the evaluation of NO x storage capacity and efficiency of lean NO x traps (LNT), ammonia storage capacity for selective catalytic reduction (SCR), evaluation of oxygen storage capacity (OSC), as well as lambda sweep tests for screening of three-way catalysts (TWC). Even though catalysts are screened on a rather small scale (~100 mg powder), experience showed that dosing rather complex gas mixtures in concentrations close to that found in real exhaust for the given application is mandatory to generate relevant data. The objective of this work is to give additional insight into HT technology. In the industrial research laboratory, HT screening has matured to become a reliable approach for rapid screening of both reaction parameter spaces, as well as material properties relevant for exhaust gas catalyst development. Due to the speed of optimized screening involving 48 parallel reactors, automated handling of primary data is an imported requirement. Software for data reduction, like estimation of light-off temperature, needs to be robust and handle results for diverse sample libraries in an unattended fashion. In combination with the statistical design of experiment and multivariate data analysis, HT testing has become a valuable enhancement to automotive catalyst development.

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Section: Introductionmentioning

confidence: 99%

High-Throughput Screening as a Supplemental Tool for the Development of Advanced Emission Control Catalysts: Methodological Approaches and Data Processing

Sundermann¹,

Gerlach²

2016

Catalysts

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“…For this, more versatile and generic reactors and methods with fully adapted workflows are needed to be able to achieve the desired very high throughput. However, nowadays the most highly integrated reactors are micromachined on the basis of a standard silicon wafer technology [82,83] with parallelization ranging up to 625 wells, after earlier generations based on the same principle had 105 or 384 wells [27]. The first systems had been assembled from individual micromachined inlays [81].…”

Section: F Massively Parallelized Microreactorsmentioning

confidence: 99%

High‐Throughput Experimentation in Heterogeneous Catalysis

Schüth

2008

Handbook of Heterogeneous Catalysis

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The sections in this article are Introduction Typical Program Technology Components Synthesis General Remarks Robotics and Automation Systems Impregnation Precipitation Hydrothermal Synthesis Sol–Gel Synthesis Other Techniques for High‐throughput Synthesis of Catalytic Materials Characterization Tools Reactors and Analytics Generic Analytical Methods A Gas Chromatography B Mass Spectrometry C IR Spectroscopy Stage I Reactors and Assays A Mass Spectrometry B Photothermal Methods C Electronic Excitation by Laser Light D Fluorescence or Color Assays E Thermography F Massively Parallelized Microreactors Stage II Reactors A Flow Distribution B Heating C Possible Problems D Liquid‐Phase Reactors Informatics Environment Data Management Library Design and Data Mining A The Initial Library B Library Design and Data Analysis in Iterative Programs Outlook

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“…In the search for more effective catalysts and reaction conditions, the use of high-throughput experimentation to monitor catalyst performance on a single particle level has gained increasing interest over the last decades. [1][2][3][4] A growing field of research that has shown great potential for these type of experiments is Lab-on-a-Chip, and in particular droplet-based microfluidics. [5][6][7] When using two immiscible fluids and specific geometries such as a T-junction or flow focusing geometry, droplets can be created by a combination of surface tension and shear forces.…”

Section: Introductionmentioning

confidence: 99%

Single catalyst particle diagnostics in a microreactor for performing multiphase hydrogenation reactions

et al. 2021

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High-throughput screening of supported catalysts in massively parallel single-bead microreactors: Workflow aspects related to reactor bonding and catalyst preparation

Cited by 19 publications

References 16 publications

High-Throughput Screening as a Supplemental Tool for the Development of Advanced Emission Control Catalysts: Methodological Approaches and Data Processing

High-Throughput Screening as a Supplemental Tool for the Development of Advanced Emission Control Catalysts: Methodological Approaches and Data Processing

High‐Throughput Experimentation in Heterogeneous Catalysis

Single catalyst particle diagnostics in a microreactor for performing multiphase hydrogenation reactions

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