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In the current era, the European Union is significantly transitioning towards reducing its carbon footprint, specifically by moving away from fossil fuel-based energy sources within its economic framework. This shift, particularly pronounced within the construction industry, is motivated by environmental, economic, and geopolitical issues. A key strategy in this energy transition involves the performance improvement and modernisation of heating systems to diminish reliance on natural gas. Within the realm of radiant heating solutions, innovative smart materials are being explored for their ability to convert electrical energy into thermal one through the Joule heating effect (e.g., self-heating materials). This study focuses on the development of electrically conductive self-heating coatings incorporating pristine few-layer graphene (FLG) as the active component. These coatings, formulated with an acrylic-based binder in a water-based dispersion, demonstrate low electrical resistivity, reaching 0.026 Ω cm. Biasing 12 V DC, the FLG-based coating can achieve a surface temperature of 115 ℃ in 15 min. Furthermore, the research introduces a novel electric heating panel designed to attain an operational surface temperature of 35 ℃ within an hour using extra-low voltage (24 V DC). The system also considers the integration of Phase Change Materials to sustain an optimal surface temperature for extended heating applications.

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Smart Materials in Construction Sector Decarbonisation: Few-Layer Graphene Based Radiant Heating

  • 会议论文

  • 发表日期：

    2025年

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  • Salvatore Polverino,
  • Sebastiano Bellani,
  • Antonio Esau Del Rio Castillo,
  • Luca Gabatel,
  • Stefano Lazzari,
  • Marilena Isabella Zappia,
  • Francesco Bonaccorso,
  • Renata Morbiducci

摘要

In the current era, the European Union is significantly transitioning towards reducing its carbon footprint, specifically by moving away from fossil fuel-based energy sources within its economic framework. This shift, particularly pronounced within the construction industry, is motivated by environmental, economic, and geopolitical issues. A key strategy in this energy transition involves the performance improvement and modernisation of heating systems to diminish reliance on natural gas. Within the realm of radiant heating solutions, innovative smart materials are being explored for their ability to convert electrical energy into thermal one through the Joule heating effect (e.g., self-heating materials). This study focuses on the development of electrically conductive self-heating coatings incorporating pristine few-layer graphene (FLG) as the active component. These coatings, formulated with an acrylic-based binder in a water-based dispersion, demonstrate low electrical resistivity, reaching 0.026 Ω cm. Biasing 12 V DC, the FLG-based coating can achieve a surface temperature of 115 ℃ in 15 min. Furthermore, the research introduces a novel electric heating panel designed to attain an operational surface temperature of 35 ℃ within an hour using extra-low voltage (24 V DC). The system also considers the integration of Phase Change Materials to sustain an optimal surface temperature for extended heating applications.