Insight on the Ultrastructure, Physicochemical, Thermal Characteristics and Applications of Palm Kernel Shells
Insight on the Ultrastructure, Physicochemical, Thermal Characteristics and Applications of Palm Kernel Shells作者机构：Laboratoire de Mécanique et Productique (LMP) UFD SI Université de Douala Douala Cameroun Laboratoire d’Analyse Simulations et Essais (LASE) IUT Université de Ngaoundéré Ngaoundéré Cameroun Applied Research & Innovation Nova Scotia Community College Dartmouth Canada Institut Pascal UMR 6602-UCA-CNRS-SIGMA Clermont-Ferrand France Ivan Curry School of Engineering Acadia University Wolfville Canada
出 版 物：《Materials Sciences and Applications》 (材料科学与应用期刊（英文）)
年 卷 期：2018年第9卷第10期
页 面：790-811页
主 题：Biomass Materials Palm Kernel Shell SEM & TEM Ultrastructure Thermal Properties Physico-Chemical Properties
摘 要：The ultrastructure and physicochemical and thermal properties of Palm Kernel Shells (PKS) in comparison with Coconut Kernel Shells (CKS) were investigated herein. Powder samples were prepared and characterized using Surface Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). Chemical and elemental constituents, as well as thermal performance were assessed by Van Soest Method, TEM/EDXA and SEM/EDS techniques. Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA) were also performed for thermal characterization. SEM/EDS and TEM/EDXA revealed that most of the PKS and CKS materials are composed of particles with irregular morphology;these are mainly amorphous phases of carbon/oxygen with small amounts of K, Ca and Mg. The DSC data permitted to derive the materials’ thermal transition phases and the relevant characteristic temperatures and physical properties. Thermal Transition phases of PKS observed herein are consistent with the chemical composition obtained and are similar to those of CKS. Nonetheless, TGA/DTG showed that the combustion characteristics of PKS are higher than those of CKS. Taken together, our results reveal that PKS have nanopores and can be efficiently used for 3D printing and membrane filtration applications. Moreover, the chemical constituents found in PKS samples are in agreement with those reported in the literature for material structural applications and thus, present potential use of PKS in these applications.
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