The effects of surface modification on the supercapacitive behaviors of novel mesoporous carbon derived from rod-like hydroxyapatite template
The effects of surface modification on the supercapacitive behaviors of novel mesoporous carbon derived from rod-like hydroxyapatite template
复制标题
表面改性对棒状羟基磷灰石模板衍生的新型介孔碳超电容行为的影响
DOI：
10.1016/j.electacta.2012.11.067
复制
发表时间：
2013-02
影响因子：
6.6
通讯作者：
Zhang, Qiuyun
中科院分区：
文献类型：
--
作者：
Hui, K. N.;Li, Laisheng;Nan, Junmin;Zhang, Qiuyun
以棒状纳米羟基磷灰石（HA）颗粒为模板，蔗糖为碳前体，通过聚合、碳化和HCl溶液去除模板，合成了新型介孔碳。在此过程中，HA不仅充当内模板，还充当外模板，产生微孔和中孔。随后，用不同浓度的HNO3溶液对介孔碳进行修饰。通过扫描电子显微镜（SEM）、透射电子显微镜（TEM）、Brunauer-Emmett-Teller 法（BET）、X 射线衍射（XRD）、傅里叶变换红外光谱（FT-IR）和 X 射线光电子能谱（XPS）对所得样品的形貌、孔结构和表面官能团进行了分析。电化学电容器的电化学性能在 1M H2SO4 水溶液中进行评估。结果表明，所得碳具有高表面积（719.7m2g−1）和大孔体积（1.51cm3g−1）的结构是HA的复制品。改性后，介孔碳的表面积和孔体积略有下降，而其电化学性能却显着提高，电容从125.7增加到170.1Fg−1，HA-C-0.15N的循环寿命超过5000次循环不衰减。
Novel mesoporous carbon has been synthesized using rod-like nano-hydroxyapatite (HA) particles as templates, sucrose as carbon precursor by polymerizing, carbonizing and the removal of templates with HCl solution. In the process, HA not only acted as an endotemplate but also an exotemplate producing micropores and mesopores. Subsequently, mesoporous carbon was modified by HNO3solution with different concentration. The morphology, pore structure, and surface functional groups of the as-obtained samples are analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer–Emmett–Teller method (BET), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS). The electrochemical performance for electrochemical capacitors is evaluated in a 1M H2SO4aqueous solution. The results manifest that the structrue of resultant carbon with a high surface area (719.7m2g−1) and large pore volume (1.51cm3g−1) is the replica of HA. After modification, the surface area and pore volume mesoporous carbons slightly decrease, while their electrochemical performance have been significantly improved with the increase of the capacitance from 125.7 to 170.1Fg−1and a non-decayed cycle life over 5000 cycles for HA-C-0.15N.
登录
查看更多内容
用于高性能超级电容器的多孔木质碳整料
影响因子：
6.6
作者：
Liu, Mao-Cheng;Kong, Ling-Bin;Kang, Long
通讯作者：
Kang, Long
影响因子：
--
作者：
Chun-Mei Zhao;Wei-kun Wang;Zhongbao Yu;Hao Zhang;An-bang Wang;Yusheng Yang
通讯作者：
Chun-Mei Zhao;Wei-kun Wang;Zhongbao Yu;Hao Zhang;An-bang Wang;Yusheng Yang
影响因子：
9.2
作者：
Huang, Chao-Wei;Wu, Yung-Tai;Li, Yuan-Yao
通讯作者：
Li, Yuan-Yao
影响因子：
4.9
作者：
Chaudhry, Aqif A.;Haque, Saba;Darr, Jawwad A.
通讯作者：
Darr, Jawwad A.
影响因子：
5.2
作者：
Li, Hongfang;Xi, Hong' an;Wang, Ruoding
通讯作者：
Wang, Ruoding