High-Throughput Screening Using Fourier-Transform Infrared Imaging

• Main Authors: Erdem Sasmaz, Kathleen Mingle, Jochen Lauterbach
• Format: Article
• Language: English
• Published: Elsevier 2015-06-01
• Series: Engineering
• Subjects: high-throughput; FTIR imaging; screening; cobalt oxide; CO oxidation
• Online Access: http://www.sciencedirect.com/science/article/pii/S2095809916300686

Efficient parallel screening of combinatorial libraries is one of the most challenging aspects of the high-throughput (HT) heterogeneous catalysis workflow. Today, a number of methods have been used in HT catalyst studies, including various optical, mass-spectrometry, and gas-chromatography techniques. Of these, rapid-scanning Fourier-transform infrared (FTIR) imaging is one of the fastest and most versatile screening techniques. Here, the new design of the 16-channel HT reactor is presented and test results for its accuracy and reproducibility are shown. The performance of the system was evaluated through the oxidation of CO over commercial Pd/Al2O3 and cobalt oxide nanoparticles synthesized with different reducer-reductant molar ratios, surfactant types, metal and surfactant concentrations, synthesis temperatures, and ramp rates.