High porous carbon foam fabrication as energy storages

Carbon foam is a representative of porous-structured carbon material. It has attracted increasing attention from The researchers because of its unique ۳D porous structure and excellent performance, such as low density with high mechanical strength, high electrical conductivity, tailorable thermal conductivities, high adsorption, electromagnetic shielding, ablation resistance, and large surface area[۱].They are expected to make special contributions to modern technology as containers of active materials for thermal energy storage, electrodes for electrochemical devices and electrical energy storage, absorbers of large molecules, and other applications including microwave absorption.Their preparation processes are discussed by classifying into five, blowing and carbonization, template carbonization, compression of exfoliated graphite, assembly of graphene nanosheets and others. Through these processes, density of the foam, sizes of cells and windows, as well as physical properties, are successfully controlled[۲].We report a facile, cost-effective and one-step carbonization and activation of pure Glucose to prepare porous carbon foam. Due to its high specific surface area (۱۹۰۱ m۲ g−۱) and cross-linked foam structure, carbon foam material demonstrates is a promising electrode material for supercapacitor with high specific capacitance of ۳۳۹ F g−۱, good rate performance and cycle stability.The sample were characterized by different analytic techniques such as Transmission electron microscopy (TEM) imaging the internal structure of solids using, X-Ray diffraction analysis (XRD) information about the crystallographic structure, chemical composition, and physical properties of a material, Fourier Transform Infrared Spectroscopy (FT-IR) used to identify organic, polymeric, and, in some cases, inorganic materials, Scanning electron microscopy (SEM) used to study information on size and morphology, Raman and Furthermore, electrocatalytic activity such as cyclic voltammetry (CV), linner sweep voltammetry (LSV) and current-potential measurements, electrochemical impedance spectroscopy (EIS) was systematically evaluated.

کلیدواژه ها:

Electrochemical ، Catalyst ، Low-cast ، Carbon porous ، Synthesis