Oligomer-salt derived 3D, heavily nitrogen doped, porous carbon for Li-ion hybrid electrochemical capacitors application

被引：81

作者：

Gokhale, Rohan ^{[1
]}

Aravindan, Vanchiappan ^{[2
]}

Yadav, Prasad ^{[2
]}

Jain, Srashti ^{[1
]}

Phase, Deodatta ^{[3
]}

Madhavi, Srinivasan ^{[2
,4
]}

Ogale, Satishchandra ^{[1
]}

机构：

[1] Natl Chem Lab, Phys & Mat Chem Div, Pune 411008, Maharashtra, India

[2] Nanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, Singapore

[3] UGC DAE Consortium Sci Res, Indore 452017, Madhya Pradesh, India

[4] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

来源：

CARBON | 2014年 / 80卷

关键词：

ENERGY DENSITY; ACTIVATED CARBONS; PERFORMANCE; GRAPHENE; SUPERCAPACITORS; POLYANILINE; PRECURSORS; REDUCTION; PYROLYSIS; POLYMERS;

D O I：

10.1016/j.carbon.2014.08.086

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

3D high surface area porous carbon is seen to form via self assembly of porous graphene sheets by direct pyrolysis of an oligomer salt tailored for the realization of molecular level activation. The oligomer salt was derived from 4-amino benzoic acid as the monomer by a facile free radical polymerization process. Incorporation of the functional groups (-COONa) eliminate the need for any external activating agents (KOH, ZnCl2, etc.) and also render high degree of sub-nanoscale homogeneity. This oligomer derived carbon (ODC) exhibits efficient performance in non-aqueous charge storage application namely Li-ion hybrid electrochemical capacitor (Li-HEC) owing to its high surface area, 3D interconnectivity and an appropriate pore size distribution. The Li-HEC fabricated with ODC based electrodes delivered a maximum energy density of similar to 63 Wh kg(-1) with spinel L4Ti5O12 as the anode. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：462 / 471

页数：10

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