中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Hierarchically aminated graphene honeycombs for electrochemical capacitive energy storage
作者: Chen, Cheng-Meng1, 2;  Zhang, Qiang1, 3;  Zhao, Xiao-Chen1, 5, 6;  Zhang, Bingsen1, 4;  Kong, Qing-Qiang2;  Yang, Mang-Guo2;  Yang, Quan-Hong2;  Wang, Mao-Zhang2;  Yang, Yong-Gang2;  Schloegl, Robert1;  Su, Dang Sheng1, 4
刊名: JOURNAL OF MATERIALS CHEMISTRY
发表日期: 2012
DOI: 10.1039/c2jm31426f
卷: 22, 期:28, 页:14076-14084
收录类别: SCI
文章类型: Article
类目[WOS]: Chemistry, Physical ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Materials Science
英文摘要: Graphene with mediated surface properties and three-dimensional hierarchical architectures show unexpected performance in energy conversion and storage. To achieve advanced graphene electrode supercapacitors, manipulating the graphene building-blocks into hierarchical nanostructured carbon materials with large electrical double layer capacitance and pseudo-capacitance is a key issue. Here, it is shown that the hierarchically aminated graphitic honeycombs (AGHs) with large surface area for electrical double layer capacitance, tunable surface chemistry for pseudo-capacitance, mediated 3D macropores for ion buffering, and low-resistant pathways for ion diffusion are fabricated for electrochemical capacitive energy storage application through a facile high vacuum promoted thermal expansion and subsequent amination process. In the initial stage of amination (similar to 200 degrees C), NH3 reacts with carboxylic acid species to form mainly intermediate amides and amines through nucleophilic substitution. As the temperature increases, the intramolecular dehydration and decarbonylation will take place to generate thermally more stable heterocyclic aromatic moieties such as pyridine, pyrrole, and quaternary type N sites. The AGH exhibits a promising prospect in supercapacitor electrodes with high capacitance (e.g. maximum gravimetric capacitance 207 F g(-1) and specific capacitance 0.84 F m(-2) at a scan rate of 3 mV s(-1)) and extraordinary stability (e.g. 97.8% of capacitance retention after 3000 cycles, and 47.8% of capacitance maintaining at a high scan rate of 500 mV s(-1) comparing with that at 3 mV s(-1)). This provides a novel structure platform for catalysis, separation, and drug delivery, which require fast mass transfer through mesopores, reactant reservoirs, and tunable surface chemistry.
关键词[WOS]: CHEMICAL-VAPOR-DEPOSITION ;  LAYERED DOUBLE HYDROXIDES ;  LITHIUM-ION BATTERIES ;  GRAPHITE OXIDE ;  SUPERCAPACITOR APPLICATION ;  SURFACE-CHEMISTRY ;  ACTIVATED CARBON ;  DOPED GRAPHENE ;  PERFORMANCE ;  COMPOSITES
语种: 英语
WOS记录号: WOS:000305796300033
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142909
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Max Planck Gesell, Dept Inorgan Chem, Fritz Haber Inst, D-14195 Berlin, Germany
2.Chinese Acad Sci, Key Lab Carbon Mat, Inst Coal Chem, Taiyuan 030001, Peoples R China
3.Tsinghua Univ, Beijing Key Lab Green Chem React Engn & Technol, Dept Chem Engn, Beijing 100084, Peoples R China
4.Chinese Acad Sci, Catalysis & Mat Div, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
5.Chinese Acad Sci, State Key Lab Catalysis, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
6.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Chen, Cheng-Meng,Zhang, Qiang,Zhao, Xiao-Chen,et al. Hierarchically aminated graphene honeycombs for electrochemical capacitive energy storage[J]. JOURNAL OF MATERIALS CHEMISTRY,2012,22(28):14076-14084.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Chen, Cheng-Meng]'s Articles
 [Zhang, Qiang]'s Articles
 [Zhao, Xiao-Chen]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Chen, Cheng-Meng]‘s Articles
 [Zhang, Qiang]‘s Articles
 [Zhao, Xiao-Chen]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace