What question did this study set out to answer?

To evaluate the effectiveness of PANI/ZnO composites for sensitive ammonia detection at room temperature.

Synergistic Effect of PANI/ZnO Composites for High‐Sensitivity Ammonia Detection

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Demonstrates high-sensitivity ammonia detection in low concentrations, indicating potential for efficient environmental monitoring.

To evaluate the effectiveness of PANI/ZnO composites for sensitive ammonia detection at room temperature.
Synthesis of polyaniline/zinc oxide composite via in situ polymerization.
Utilization of zinc oxide prepared from pineapple peel waste using green synthesis.
Application of the composite on a printed circuit board substrate with interdigitation electrodes.
Characterization using XRD, FTIR, and SEM‐EDX analysis.
PANI/ZnO composite with 0.3 g ZnO showed 79% sensitivity at 4 ppm NH3, surpassing pure PANI's 61%.
Fast response time recorded between 20-29 seconds and recovery time of 61-79 seconds.
The sensor demonstrated stable performance in repeated tests, confirming its reliability.

Putri et al. (2026) studied this question.

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