Süperkritik karbondioksit kurutma kullanılarak biyokütleden karbon aerojel sentezi ve karakterizasyonu


Ekinci E., Ekinci M. S.

JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY, vol.39, no.1, pp.351-358, 2024 (SCI-Expanded) identifier identifier identifier

Abstract

The superior properties of carbon aerogels such as porous structure, renewability, low density, high electrical conductivity, and chemical stability have made their use as adsorbent or catalyst in chemical processes widespread. The use of biomass instead of Resorcinol-Formaldehyde as a raw material in the production of carbon aerogel is an environmentally friendly practice as well as reducing the production cost. In the study, carbon aerogel synthesis was carried out by using two different biomasses (bark and brewed tea waste). The biomass used during the synthesis went through the stages of pretreatment (washing/grinding), hydrothermal treatment, drying with supercritical carbon dioxide and carbonization, respectively. XRD, Nitrogen adsorption - desorption analysis, SEM and FTIR analyzes were used in the characterization of the synthesized materials. Synthesized carbon aerogels are very promising in terms of their use in areas such as energy storage, thermal insulation, environmental cleaning, chemical sensors, with their superior properties.