海带基微孔/介孔复合多级孔纳米炭的制备及电化学性能研究
Study on Synthesis and Electrochemical Performance of Micro-Mesoporous Nano-Carbon Derived from Seaweed as Electrode Material for Supercapacitors
DOI: 10.12677/NAT.2017.71002, PDF, HTML, XML, 下载: 2,173  浏览: 3,954  科研立项经费支持
作者: 宗飞旭, 潘 超*, 高静怡, 高兆辉：大连海洋大学理学院，辽宁 大连；董 丽*：大连民族大学理学院，辽宁 大连
关键词: 海带；微孔/介孔纳米炭；超级电容器；电化学性能；Seaweed； Micro-Mesoporous Nano-Carbon； Supercapacitor； Electrochemical Performance
摘要: 以新鲜海带为前驱体，通过清洗、酸化和高温炭化过程制备了微孔/介孔复合多级孔炭纳米材料。采用SEM，TEM，N2吸脱附，Raman光谱和电化学测试对其结构和电化学性能进行了表征，结果表明海带基多孔炭性能好于商业活性炭，800℃焙烧获得的多孔炭材料具有最大的比表面积(1703.97 m2/g)和最佳的电化学性能，其在4 M的KOH电解液中，5 A/g电流密度下比电容高达200 F/g，并表现出极佳的循环稳定性。这可归因于高的比表面积和独特的微/介孔复合孔结构。
Abstract: The fresh seaweed is used as a natural precursor to prepare micro-mesoporous nano-carbon materials. The micro-mesoporous carbon was synthesized by washing, acidification and carbonization at different temperatures. The synthesized hierarchical micro-mesoporous carbon was characterized by SEM, TEM, BET, Raman and electrochemical measurement techniques. The results confirmed that such micro-mesoporous carbon possessed higher electrochemical capacitance than commercial active carbon. The porous carbons activated at 800˚C present high surface area (up to 1703.97 m2/g) and high specific capacitance of 200 F/g at a current density of 5 A/g, and superior cycling stability in a 4 M KOH aqueous solution. The good capacitive performance can be ascribed to the high specific surface area and well-controlled micro- and mesoporosity.
文章引用：宗飞旭, 潘超, 高静怡, 高兆辉, 董丽. 海带基微孔/介孔复合多级孔纳米炭的制备及电化学性能研究[J]. 纳米技术, 2017, 7(1): 11-20. https://doi.org/10.12677/NAT.2017.71002

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