Abstract
Abstract Transformation of coir fibers, coir pith and coconut shell endocarp microstructures is described for the formation of activated carbons. The carbonization/activation process was carried out using ZnCl 2 as activating agent at 800 °C under CO 2 atmosphere. The carbonization/activation process was evaluated by TGA/DTG measurements which evidenced an increase in the initial decomposition temperature along with increase in the carbon amount as an effect from ZnCl 2 . A detailed morphological analysis based on scanning electron microscopy with EDX analysis allowed the first description of the anisotropic cellular microstructure of these plant tissues and also evidenced the morphology transformation in all samples. From X-ray microtomography (micro-CT) images a random distribution of large channels was revealed for zinc containing samples (fibers and endocarp), as a result of contrast improvement in comparison to unmodified samples. Raman spectra of carbon samples were measured as a complementary microstructural evaluation on the basis of spectral deconvolution techniques, indicating that the size of graphitic crystallites as well as the size of clusters of imperfect graphene layers depends on the type of carbon precursor.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
