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May 8, 2026Materials Research ExpressOpen Access

Traditional Nepali paper-CNT-polyaniline hybrid as a green humidity sensor

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Authors

YTYub Narayan ThapaTribhuvan UniversitySHSven HenningFraunhofer Institute for Microstructure of Materials and SystemsRLRalf LachMerseburg University of Applied Sciences

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Overview

Randomized trial reports enhanced humidity-sensing performance in cellulose-based composites, suggesting potential for sustainable electronics.

Key Points

  • This research aims to develop a composite material using traditional Nepali paper, polyaniline, and carbon nanotubes for effective humidity sensing.
  • Integrated in situ polymerised polyaniline and multi-walled carbon nanotubes into traditional Nepali paper to create sensing films.
  • Evaluated electrical conductivity, thermal stability, and humidity-sensing performance of the resulting composite films.
  • Conducted dynamic cycling tests to assess reversibility under varying humidity conditions.
  • PANI-coated TNP without CNTs had a relative resistance drop of ∼78% after 90 s in saturated humidity.
  • PANI-coated TNP with 0.01 wt.% CNTs showed a relative resistance drop of ∼47% and reached saturation faster in 70 s, with a recovery factor of 46.1%.
  • Both composites maintained excellent cycle-to-cycle stability and high reversibility from the second cycle onward.

Cite This Study

Thapa et al. (2026) studied this question.

synapsesocial.com/papers/69fd7cd4bfa21ec5bbf05b67https://doi.org/10.1088/2053-1591/ae602e
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