# Development of Composite Ceramic Membranes for Carbon Dioxide Detection

## TL;DR

Researchers developed a new ceramic membrane that can detect carbon dioxide more efficiently, especially when made thin using a specific method.

## Contribution

The study introduces a composite ceramic membrane with improved CO2 sensing performance using a novel synthesis and fabrication approach.

## Key findings

- Thinner membranes made by tape casting respond faster and more consistently to CO2 than thicker ones.
- The composite material shows structural and electrical properties suitable for CO2 sensing.
- LNKC-impregnated W-LAMOX membranes are promising for CO2 sensing technologies.

## Abstract

Porous La2MoWO9 (W-LAMOX) impregnated with a eutectic mixture of lithium, sodium, and potassium carbonate (LNKC) ceramic membranes was synthesized and evaluated for carbon dioxide (CO2) sensing applications. Structural, microstructural, and electrical characterizations were carried out using X-ray diffraction (XRD), scanning electron microscopy (SEM), and impedance spectroscopy. The results indicate that sintered thinner membranes, prepared by the tape casting method, exhibit faster and more reproducible responses to CO2 exposure than sintered thick pressed pellets. These findings highlight the potential of these composite membranes for application in CO2 sensing technologies.