3D Hierarchical Boron-Doped Diamond-Multilayered Graphene Nanowalls as an Efficient Supercapacitor Electrode

被引：39

作者：

Banerjee, Debosmita ^{[1
]}

Sankaran, Kamatchi Jothiramalingam ^{[2
,3
]}

Deshmukh, Sujit ^{[1
]}

Ficek, Mateusz ^{[4
]}

Bhattacharya, Gourav ^{[1
]}

Ryl, Jacek ^{[5
]}

Phase, Deodatta Maheshwar ^{[6
]}

Gupta, Mukul ^{[6
]}

Bogdanowicz, Robert ^{[4
]}

Lin, I-Nan ^{[7
]}

Kanjilal, Aloke ^{[1
]}

Haenen, Ken ^{[2
,3
]}

Roy, Susanta Sinha ^{[1
]}

机构：

[1] Shiv Nadar Univ, Sch Nat Sci, Dept Phys, NH-91, Gautam Buddha Nagar 201314, Uttar Pradesh, India

[2] Hasselt Univ, Inst Mat Res IMO, B-3590 Diepenbeek, Belgium

[3] IMEC Vzw, IMOMEC, B-3590 Diepenbeek, Belgium

[4] Gdansk Univ Technol, Fac Elect Telecommun & Informat, Dept Metrol & Optoelect, Gabriela Narutowicza 11-12, PL-80233 Gdansk, Poland

[5] Gdansk Univ Technol, Fac Chem, Dept Electrochem Corros & Mat Engn, Gabriela Narutowicza 11-12, PL-80233 Gdansk, Poland

[6] UGC DAE Consortium Sci Res, Khandwa Rd, Indore 452001, Madhya Pradesh, India

[7] Tamkang Univ, Dept Phys, Tamsui 251, Taiwan

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2019年 / 123卷 / 25期

关键词：

HIGH-PERFORMANCE; MICRO-SUPERCAPACITORS; GLASSY-CARBON; ELECTROCHEMICAL PERFORMANCE; FILM; FABRICATION; SURFACE; SILICON; CAPACITORS; DENSITY;

D O I：

10.1021/acs.jpcc.9b03628

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：

Synthesis of stable hybrid carbon nanostructure for high-performance supercapacitor electrode with long life-cycle for electronic and energy storage devices is a real challenge. Here, we present a one-step synthesis method to produce conductive boron-doped hybrid carbon nanowalls (HCNWs), where sp(2)-bonded graphene has been integrated with and over a three-dimensional curved wall-like network of sp(3)-bonded diamond. The spectroscopic studies such as X-ray absorption, Raman, and X-ray photoelectrons clearly reveal the coexistence of diamond and graphene in these nanowalls, while the detailed transmission electron microscopy studies confirm the unique microstructure where a diamond nanowall is encased by a multilayered graphene. Interestingly, these HCNWs yield a high double layer capacitance value of 0.43 mF cm(-2) and electrode retention of 98% over 10 000 cycles of charging/discharging in 1 M Na2SO4 electrolyte. The remarkable supercapacitive performance can be attributed to the 3D interconnected network of diamond nanowalls surrounded by highly conducting graphene.

引用

页码：15458 / 15466

页数：9

共 84 条

[1] Strategies to Improve the Performance of Carbon/Carbon Capacitors in Salt Aqueous Electrolytes [J].