N- and O-doped carbonaceous nanotubes from polypyrrole for potential application in high-performance capacitance
N- and O-doped carbonaceous nanotubes from polypyrrole for potential application in high-performance capacitance
复制标题
由聚吡咯制成的 N 和 O 掺杂碳纳米管在高性能电容中的潜在应用
DOI：
10.1016/j.jpowsour.2013.09.014
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发表时间：
2014-02-01
影响因子：
9.2
通讯作者：
Tu, Yingfeng
中科院分区：
文献类型：
--
作者：
Guo, Chengxin;Li, Na;Tu, Yingfeng
通过反应性自降解模板引导合成和进一步碳化，由导电聚合物（聚吡咯）前驱体制备了N-和O-掺杂碳质纳米管。经过KOH化学活化后，具体地，KOH与聚吡咯纳米管的重量比为2和4，得到两个具有无帽形貌的活性碳质聚吡咯纳米管样品（ACPN-2和ACPN-4）。 ACPN-4具有较高的杂原子含量(14.85%)和比表面积(1226 m(2) g(-1)),在0.2 A g(-1)的电流密度下表现出470 F g(-1)的可逆电容,甚至在10 A g(-1)的更高电流密度下表现出280 F g(-1)的可逆电容。此外，这些纳米管结构材料还表现出优异的循环性能，超过 10,000 次循环后电容没有损失。此外，这些碳质纳米管在273 K 和298 K 下实现了3.9 mmol g(-1) 和2.5 mmol g(-1) 的高CO2 吸附吸收。 (C) 2013 Published by Elsevier B.V.
By the reactive self-degraded template-directed synthesis and further carbonization, N- and O-doped carbonaceous nanotubes from conducting polymer (polypyrrole) precursor have been prepared. After being chemically activated by KOH, specially, with the weight ratio of KOH to polypyrrole nanotubes of 2 and 4, two samples of activated carbonaceous polypyrrole nanotubes (ACPN-2 and ACPN-4) with an uncapped morphology were obtained. The ACPN-4 possesses high heteroatom content (14.85%) and specific surface area (1226 m(2) g(-1)), and exhibits a reversible capacitance of 470 F g(-1) at the current density of 0.2 A g(-1), and 280 F g(-1) even at a higher current density of 10 A g(-1). Moreover, these nanotubular structured materials have also shown excellent cycling performance with no capacitance loss over 10,000 cycles. Furthermore, these carbonaceous nanotubes achieved a high CO2 adsorption uptake of 3.9 mmol g(-1) at 273 K and 2.5 mmol g(-1) at 298 K. (C) 2013 Published by Elsevier B.V.