Fabrication of activated carbon materials from wood chips <em>via</em> molten salt-assisted chemical activation for supercapacitors
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초록
내용
Activated carbon materials (ACMs) has been attracting attention as an electrode material for high-performance supercapacitors due to its high electrical conductivity and specific surface area. In this study, ACMs with hierarchical pore structures, large specific surface area, and excellent electrochemical performance were prepared from wood chips by molten salt-assisted chemical activation. Wood chips were initially impregnated in a mixed aqueous solutions of NaCl/NaOH. Subsequently, high-temperature carbonization is performed to fabricate ACMs. The physicochemical properties and pore structures of the resulting ACMs are influenced by the ratios of NaOH and NaCl. The electrochemical analysis demonstrates that the ACMs prepared through this approach exhibit high specific capacity and excellent cycling stability. Consequently, these findings suggest the developed ACMs could serve as a promising electrode material for environmentally friendly and high-performance supercapacitors.