Cellulose aerogel composite with Zn Nanocrystals to perform a radiative cooling material

Cellulose aerogel composites with zinc oxide nanocrystals have been investigated as pas sive cooling materials due to their lower cost and scalability compared with Silicon. In Ecuador’s delicate energy infrastructure, a sustainable refrigeration system is needed to reduce the dependence on the electricity network. Therefore, it is crucial to investigate the thermal and emissive behavior to evaluate it as a viable and sustainable solution for insulating coating materials. The material is compared with cellulose aerogel to quantify its properties through X-ray Diffraction to assess crystallinity, and Fourier Transform Infrared Spectroscopy to identify functional groups. Additionally, UV-Vis Spectroscopy is used to determine transmittance and absorbance of UV spectra, and Differential Scanning Calorimetry is employed to examine thermal transitions and heat capacity. Correlating them with Sus tainable Development Goals 13 and 7, together with relative costs and energy savings, to determine their economic viability. Based on these analyses, the composite exhibits UV protection, high reflectance, and moderate emissivity in the mid-infrared (IR) range. Raising the interest in potential applications of thermal management systems for refrig eration

• Hlavní autor: Garzón Guevara, Marcos Jhair (author)
• Médium: bachelorThesis
• Vydáno: 2026
• Témata: Viabilidad económica; Sostenibilidad; Espectroscopia; Economic viability; Sustainability
• On-line přístup: https://repositorio.yachaytech.edu.ec/handle/123456789/1040