Purpose & Applications

In situ plasma–thermal catalytic DRIFTS is a powerful technique for studying catalyst surface processes under coupled plasma discharge and heating conditions. It enables real-time monitoring of surface adsorbates, key intermediates, and product evolution, providing direct insight into reaction mechanisms and pathways. The technique is suitable for CO₂ hydrogenation, ammonia synthesis, methane activation, VOC abatement, small-molecule activation, and other plasma-coupled catalytic reactions, and is widely used for mechanistic studies, intermediate identification, catalyst evaluation, and dynamic reaction monitoring.

Instrument Model

In Situ Plasma DRIFTS Cell (FANNE Technology): PCT-DM-G04

FTIR Spectrometer (Thermo Fisher Scientific): Nicolet iS50

Mass Spectrometer (Anyeep): GMA6500

Sample Requirements

1 | Sample Type
Suitable for powdered, granular, or supported solid catalysts with adequate diffuse reflectance in the infrared region. Typical samples include metal oxides, zeolites, MOFs, supported metal catalysts, and other porous solid materials.

2 | Sample Amount
A sample amount of 100–500 mg is generally recommended for each measurement. The actual amount may be adjusted depending on the cell size, test mode, and sample packing density. For materials with lower density or weaker reflectance, a larger amount may be required.

3 | Particle Size
Samples should have a relatively uniform particle size. Sieving to 40–80 mesh or grinding to a consistent particle size is generally recommended. Oversized particles may affect sample packing and spectral reproducibility, while excessively fine powders may influence gas transport or lead to sample loss.