CAJ | 학술논문

以正硅酸乙酯为模板硅源,间苯二酚和甲醛为炭源,通过溶胶-凝胶反应,制得中孔炭材料.采用SEM、XRD、N2吸附等温线研究了炭材料的形貌和结构；采用电化学工作站研究了炭材料的电化学电容性能.结果表明,炭材料为石墨化的无序结构,比表面积为1313 m2·g-1,孔径约10nm.在6 mol·L-1H2SO4中表现出良好的电化学电容性能.当放电电流密度为0.05 A·g-1时,炭材料的质量比电容为265 F·g-1,其容量保持率达92.8%,具有良好的电化学稳定性和可逆性.
이정규산을지위모판규원,간분이분화갑철위탄원,통과용효-응효반응,제득중공탄재료.채용SEM、XRD、N2흡부등온선연구료탄재료적형모화결구；채용전화학공작참연구료탄재료적전화학전용성능.결과표명,탄재료위석묵화적무서결구,비표면적위1313 m2·g-1,공경약10nm.재6 mol·L-1H2SO4중표현출량호적전화학전용성능.당방전전류밀도위0.05 A·g-1시,탄재료적질량비전용위265 F·g-1,기용량보지솔체92.8%,구유량호적전화학은정성화가역성.
Mesoporous carbon was fabricated by sol-gel reaction with tetraethoxy silane as the source of the silica template and resorcinol-formaldehyde gel as the carbon precursor. Morphology and structure of resultant carbon were characterized by SEM, XRD and nitrogen adsorption isotherms. Electrochemical capacitance performance was investigated by electrochemical station. The results showed mesoporous carbon was a graphitized disordered structure. The specific surface area, pore diameter were 1313 m2·g-1, 10nm, respectively. In 6 mol·L-1H2SO4 solution, mesoporous carbon exhibited excellent capacitance performance. The specific capacitance was 265 F·g-1 at the discharge current density of 0.05 A·g-1, and capacity retention was 92.8%. The as-prepared possessed better electrochemical reversibility and stability.