Oxygen-Rich Porous Activated Carbon from Eucalyptus Wood as an Efficient Supercapacitor Electrode

被引:31
作者
Atika [1 ]
Dutta, Raj Kumar [1 ,2 ]
机构
[1] Indian Inst Technol Roorkee, Dept Chem, Roorkee 247667, Uttar Pradesh, India
[2] Indian Inst Technol Roorkee, Ctr Nanotechnol, Roorkee 247667, Uttar Pradesh, India
关键词
electric double-layer capacitances; eucalyptus wood; oxygen-rich activated carbon; supercapacitors; symmetric device fabrication; HIGH-PERFORMANCE SUPERCAPACITORS; ELECTROCHEMICAL PERFORMANCE; NANOPOROUS CARBONS; FUNCTIONAL-GROUPS; FACILE SYNTHESIS; NITROGEN; STORAGE; LIGNIN; MORPHOLOGY; PYROLYSIS;
D O I
10.1002/ente.202100463
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Herein, lignin-rich KOH-activated porous carbon from eucalyptus wood (named as PACE) is presented as an efficient electrode for supercapacitors (SCs). Compared with the most commonly used higher activation temperature, i.e., 800 degrees C with KOH (PACE-800), a more efficient SC is developed by activating carbon with KOH at lesser temperature, i.e., 600 degrees C (PACE-600). The high specific capacitance (i.e., 230 F g(-1) at 1 A g(-1) measured in a 2 m NaCl electrolyte) measured by galvanostatic charge-discharge (GCD) studies is not primarily due to larger surface area, but due to the inherent electron-rich oxygen-based functionalities that persist at the lower activation temperature, contributing to the hydrophilic nature to PACE-600. The mechanism of the capacitive charge storage is deduced from electrochemical impedance spectroscopy (EIS). The application of PACE-600 as a SC electrode is confirmed from insignificant loss in the specific capacitance after 10 000 charging-discharging cycles, recorded at 10 A g(-1). Further, fabrication of higher-voltage (1.6 V) symmetric SC PACE-600//PACE-600 in aqueous neutral electrolyte (2 m NaCl) is presented, which illuminates a red LED (1.8 V) for 1 min after charging for 5 s. The corresponding energy density is calculated to be 41 W h kg(-1), and at a power density of 2396 W kg(-1).
引用
收藏
页数:12
相关论文
共 80 条
[1]   Superior Performance of Electrochemical Double Layer Supercapacitor Made with Asphaltene Derived Activated Carbon Fibers [J].
Abedi, Zahra ;
Leistenschneider, Desiree ;
Chen, Weixing ;
Ivey, Douglas G. .
ENERGY TECHNOLOGY, 2020, 8 (12)
[2]   Comparison of GO, GO/MWCNTs composite and MWCNTs as potential electrode materials for supercapacitors [J].
Aboutalebi, Seyed Hamed ;
Chidembo, Alfred T. ;
Salari, Maryam ;
Konstantinov, Konstantin ;
Wexler, David ;
Liu, Hua Kun ;
Dou, Shi Xue .
ENERGY & ENVIRONMENTAL SCIENCE, 2011, 4 (05) :1855-1865
[3]   Beyond Conventional Activating Methods, a Green Approach for the Synthesis of Biocarbon and Its Supercapacitor Electrode Performance [J].
Altinci, Osman Cem ;
Demir, Muslum .
ENERGY & FUELS, 2020, 34 (06) :7658-7665
[4]   Direct and facile synthesis of highly porous low cost carbon from potassium-rich wine stone and their application for high-performance removal [J].
Arslanoglu, Hasan .
JOURNAL OF HAZARDOUS MATERIALS, 2019, 374 :238-247
[5]   Rapid transformation of heterocyclic building blocks into nanoporous carbons for high-performance supercapacitors [J].
Ashourirad, Babak ;
Demir, Muslum ;
Smith, Ryon A. ;
Gupta, Ram B. ;
El-Kaderi, Hani M. .
RSC ADVANCES, 2018, 8 (22) :12300-12309
[6]   An ultrasound-assisted approach to bio-derived nanoporous carbons: disclosing a linear relationship between effective micropores and capacitance [J].
Bai, Peiyao ;
Wei, Shilin ;
Lou, Xiaoxian ;
Xu, Lang .
RSC ADVANCES, 2019, 9 (54) :31447-31459
[7]   Recent advances in functionalized micro and mesoporous carbon materials: synthesis and applications [J].
Benzigar, Mercy R. ;
Talapaneni, Siddulu Naidu ;
Joseph, Stalin ;
Ramadass, Kavitha ;
Singh, Gurwinder ;
Scaranto, Jessica ;
Ravon, Ugo ;
Al-Bahily, Khalid ;
Vinu, Ajayan .
CHEMICAL SOCIETY REVIEWS, 2018, 47 (08) :2680-2721
[8]   New insight into high-temperature driven morphology reliant CoMoO4 flexible supercapacitors [J].
Candler, John ;
Elmore, Tyler ;
Gupta, Bipin Kumar ;
Dong, Lifeng ;
Palchoudhury, Soubantika ;
Gupta, Ram K. .
NEW JOURNAL OF CHEMISTRY, 2015, 39 (08) :6108-6116
[9]   Hierarchical Activated Carbon Fibers as a Sustainable Electrode and Natural Seawater as a Sustainable Electrolyte for High-Performance Supercapacitor [J].
Challagulla, Navakanth Vijay ;
Vijayakumar, Manavalan ;
Sri Rohita, Duggirala ;
Elsa, George ;
Bharathi Sankar, Ammaiyappan ;
Narasinga Rao, Tata ;
Karthik, Mani .
ENERGY TECHNOLOGY, 2020, 8 (09)
[10]   Rice husk-based hierarchical porous carbon for high performance supercapacitors: The structure-performance relationship [J].
Chen, Zhimin ;
Wang, Xiaofeng ;
Xue, Beichen ;
Li, Wei ;
Ding, Zhiyao ;
Yang, Xiaomin ;
Qiu, Jieshan ;
Wang, Zichen .
CARBON, 2020, 161 :432-444