4.8 Article

Thin-Sheet Carbon Nanomesh with an Excellent Electrocapacitive Performance

期刊

ADVANCED FUNCTIONAL MATERIALS
卷 25, 期 34, 页码 5420-5427

出版社

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201502025

关键词

capacitive performance; carbon nanomesh; chemical vapor deposition; ferrocene; MgAl-layered double oxide

资金

  1. National Natural Science Foundation of China [21373134, 21361162004]
  2. fundamental Research Funds for the Central Universities [GK201403005, GK201301002, GK201501007]
  3. 111 project [B14041]
  4. foundation of returned overseas scholar
  5. MOE
  6. Program for Key Science & Technology Innovation Team [2012KCT-21]
  7. Nature Science Foundation of Shaanxi Province [2013JM2001]

向作者/读者索取更多资源

A facile yet effective chemical vapor deposition (CVD) method to prepare carbon nanomesh (CNM) with MgAl-layered double oxides (LDO) as sacrificial template and ferrocene as carbon precursor is reported. Due to the combined effect of the LDO template and organometallic precursor, the as-made hexagonal thin-sheet CNM features a hierarchical pore system consisting of micropores and small mesopores with a size range of 1-6 nm, and a great number of random large mesopores with a pore size of 10-50 nm. The density, geometry, and size of the pores are strongly dependent on the CVD time and the annealing conditions. As supercapacitor electrode, the CNM exhibits an enhanced capacitance, high rate capability, and outstanding cycling performance with a much-shortened time constant. The excellent capacitive performance is due to the presence of the large mesopores in the 2D CNM, which not only offer additional ion channels to accelerate the diffusion rate across the thin sheets but also help to make efficient use of the oxygen functional groups at the edges of large mesopores to increase the pseudocapacitance contribution.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.8
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据