Amorphous cellulose nanofiber supercapacitors with voltage-charging performance
説明
<jats:title>Abstract</jats:title><jats:p>The electric charge storage properties of amorphous cellulose nanofiber (ACF) supercapacitors with different metal carboxylate radicals (COOM; M: Na(I), Ca(II), Al(III)) was investigated in terms of charging/discharging behaviours, alternating current impedance analysis, and plane-wave-based first-principles density functional calculations. Na-ACF exhibited a higher storage effect than Ca- and Al-ACFs. The charge storage mechanism for an Na-ACF supercapacitor was proposed using an electric double layer model in a C<jats:sub>12</jats:sub>H<jats:sub>17</jats:sub>O<jats:sub>11</jats:sub>Na electrolyte with an electrical resistivity of 6.8 × 10<jats:sup>3</jats:sup> Ω cm, based on the migration of protonic soliton. The supercapacitor, which demonstrated fast charging upon voltage application, could illuminate a white LED for 7 s after charging with 10 mA at 18.5 V.</jats:p>
収録刊行物
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- Scientific Reports
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Scientific Reports 12 (1), 2022-04-04
Springer Science and Business Media LLC