Publication: A Self-Powered and Chemically Responsive Triboelectric Nanogenerator Based on Surface Protonation in SrO2Nanopowder/Graphene Oxide/epoxy Composite for pH Sensing
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Issued Date
2025-12-05
Resource Type
eISSN
25740970
Scopus ID
2-s2.0-105024221189
Journal Title
ACS Applied Nano Materials
Volume
8
Issue
48
Start Page
23171
End Page
23185
Rights Holder(s)
SCOPUS
Bibliographic Citation
ACS Applied Nano Materials Vol.8 No.48 (2025) , 23171-23185
Suggested Citation
Saengpoe P., Supasai W., Amorntep N., Nilnumpetch C., Nokkaew M., Samanjit W., Treetong A., Saetang C., Charoonsuk T., Pakawanit P., Chiu T.W., Sriphan S., Surawanitkun C., Siritaratiwat A., Vittayakorn N. A Self-Powered and Chemically Responsive Triboelectric Nanogenerator Based on Surface Protonation in SrO2Nanopowder/Graphene Oxide/epoxy Composite for pH Sensing. ACS Applied Nano Materials Vol.8 No.48 (2025) , 23171-23185. 23185. doi:10.1021/acsanm.5c04388 Retrieved from: https://hdl.handle.net/20.500.14740/54971
Author's Affiliation
Khon Kaen University
National Taipei University of Technology
King Mongkut's Institute of Technology Ladkrabang
King Mongkut's University of Technology North Bangkok
Thailand National Science and Technology Development Agency
Srinakharinwirot University
Ramkhamhaeng University
Rajabhat University
Synchrotron Light Research Institute (Public Organization)
National Taipei University of Technology
King Mongkut's Institute of Technology Ladkrabang
King Mongkut's University of Technology North Bangkok
Thailand National Science and Technology Development Agency
Srinakharinwirot University
Ramkhamhaeng University
Rajabhat University
Synchrotron Light Research Institute (Public Organization)
Corresponding Author(s)
Other Contributor(s)
Abstract
Practical implementation of triboelectric nanogenerators (TENGs) in autonomous systems is frequently impeded by their inadequate durability in chemically harsh environments. To address this limitation, we present a durable TENG utilizing a strontium dioxide nanopowders/graphene oxide/epoxy resin (SrO<inf>2</inf>NPOs/GO/ER) composite, positioning SrO<inf>2</inf>NPOs as an innovative, high-permittivity filler for triboelectric applications. By synergistically integrating the elevated dielectric constant of SrO<inf>2</inf>NPOs with the interfacial polarization of GO NPOs, our optimized composite achieves an outstanding output of approximately 136 V and 2.3 μA/cm<sup>2</sup>under a 100 N force, exceeding the performance of numerous advanced TENGs. Significantly, we convert a common degradation mechanism, i.e., surface protonation, into a functional sensing approach. The device leverages reversible protonation–deprotonation dynamics to convert environmental pH into distinct electrical signals, enabling self-powered, real-time pH sensing. The sensor exhibits excellent linearity (R<sup>2</sup>> 0.97) across three distinct operational regions (pH 1–12), demonstrating high sensitivity to acidity changes. The device has demonstrated remarkable durability, completing approximately 11,000 mechanical cycles. Also, the proposed device serves high chemical durability, maintaining stable performance (up to 6000 cycles) after 24 h immersion in neutral and alkaline solutions. Our work establishes a resilient, multifunctional platform that simultaneously harvests energy and senses its chemical surroundings by reframing protonation as a design principle. This breakthrough paves the way for next-generation TENGs for use in environmental monitoring, resilient IoT networks, and adaptive self-powered electronics that can function under conditions where the chemical environment changes.