A study on the electrochemical performance of nitrogen and oxygen co-doped carbon dots derived from a green precursor for supercapacitor applications

被引：15

作者：

Dharmalingam, P. ^{[1
]}

Ramanan, V. ^{[1
]}

Karthikeyan, G. G. ^{[2
]}

Palani, N. S. ^{[3
]}

Ilangovan, R. ^{[4
]}

Ramamurthy, P. ^{[1
]}

机构：

[1] Univ Madras, Natl Ctr Ultrafast Proc, Chennai 600113, Tamil Nadu, India

[2] Anna Univ, Dept Chem, Chennai 600025, Tamil Nadu, India

[3] Alagappa Univ, Dept Nanosci & Technol, Nanoelect Lab, Karaikkudi 630004, Tamil Nadu, India

[4] Univ Madras, Natl Ctr Nanosci & Nanotechnol, Chennai 600025, Tamil Nadu, India

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2017年 / 28卷 / 24期

关键词：

QUANTUM DOTS; ENERGY; CAPACITANCE; NANOSHEETS;

D O I：

10.1007/s10854-017-7796-3

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Carbon dots (CDs) finds applications in the field of optoelectronics, energy conversion, energy storage, etc. In this work, the electrochemical properties of CDs (obtained from a green source, lignite) were established to employ them for supercapacitor application. CDs-modified carbon felt working electrode was fabricated and its electrochemical properties were studied and compared with lignite-modified carbon felt working electrode. The CDs-modified electrode showed a superior capacitance compared with lignite-modified electrode which was evidenced from their cyclic voltammograms, electron impedance spectroscopy, and charge/discharge studies. The highest observed specific capacitance value for CDs-based electrode is 30.5 F g(-1) which is 14 times higher than that of lignite-modified electrode.

引用

页码：18489 / 18496

页数：8

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