Preparation of monolith SiC aerogel with high surface area and large pore volume and the structural evolution during the preparation
Source abstract
Abstract
Abstract Resorcinol–formaldehyde/silica composite (RF/SiO 2 ) aerogel was synthesized by sol–gel process followed by supercritical drying (SCD). Monolithic SiC aerogel was obtained from RF/SiO 2 aerogel after carbothermal reduction. The evolution of physical property, crystal structure, morphology and pore structure from RF/SiO 2 to SiC aerogel was investigated by different methods, such as X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM) and N 2 adsorption/desorption. The as-synthesized SiC aerogel presented typical mesoporous structure and possessed high porosity (91.8%), high surface area (328 m 2 /g) and large pore volume (2.28 cm 3 /g). Carbothermal reduction mechanism was also discussed based on the experiment and characterization results.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Aerogels and thermal insulation · Mesoporous Materials and Catalysis · Pigment Synthesis and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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