Preparation and Characterization of Physically Activated Carbon and Its Energetic Application for All-Solid-State Supercapacitors: A Case Study

被引:36
作者
Ahmad, Aziz [1 ]
Gondal, Mohammed Ashraf [2 ,3 ,5 ]
Hassan, Muhammad [2 ,3 ]
Iqbal, Rashid [4 ]
Ullah, Sami [5 ]
Alzahrani, Atif Saeed [1 ]
Memon, Waqar Ali [6 ]
Mabood, Fazal [7 ]
Melhi, Saad [8 ]
机构
[1] King Fahd Univ Petr & Minerals KFUPM, Interdisciplinary Res Ctr Hydrogen & Energy Storag, Dhahran 31261, Saudi Arabia
[2] King Fahd Univ Petr & Minerals KFUPM, Phys Dept, Laser Res Grp, Dhahran 31261, Saudi Arabia
[3] King Fahd Univ Petr & Minerals KFUPM, IRC Hydrogen & Energy Storage, Dhahran 31261, Saudi Arabia
[4] Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Guangdong, Peoples R China
[5] King Fahd Univ Petr & Minerals KFUPM, KACARE Energy Res & Innovat Ctr ERIC, Dhahran 31261, Saudi Arabia
[6] Chinese Acad Sci, Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China
[7] Univ Swat, Inst Chem Sci, Charbagh 19120, KP, Pakistan
[8] Univ Bisha, Coll Sci, Dept Chem, Bisha 61922, Saudi Arabia
来源
ACS OMEGA | 2023年 / 8卷 / 24期
关键词
REDOX SUPERCAPACITORS; CONDUCTING POLYMERS; GRAPHENE-LIKE; ELECTRODE; STORAGE; BIOMASS; SHELL; CAPACITORS; NANOSHEETS; MICROSTRUCTURE;
D O I
10.1021/acsomega.3c01065
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Biomass-derived activated carbons have gained significantattentionas electrode materials for supercapacitors (SCs) due to their renewability,low-cost, and ready availability. In this work, we have derived physicallyactivated carbon from date seed biomass as symmetric electrodes andPVA/KOH has been used as a gel polymer electrolyte for all-solid-stateSCs. Initially, the date seed biomass was carbonized at 600 degrees C(C-600) and then it was used to obtain physically activated carbonthrough CO2 activation at 850 degrees C (C-850). The SEMand TEM images of C-850 displayed its porous, flaky, and multilayertype morphologies. The fabricated electrodes from C-850 with PVA/KOHelectrolytes showed the best electrochemical performances in SCs (Luet al. Energy Environ. Sci., 2014, 7, 2160) application. Cyclic voltammetry was performed from5 to 100 mV s(-1), illustrating an electric doublelayer behavior. The C-850 electrode delivered a specific capacitanceof 138.12 F g(-1) at 5 mV s(-1), whereasit retained 16 F g(-1) capacitance at 100 mV s(-1). Our assembled all-solid-state SCs exhibit an energydensity of 9.6 Wh kg(-1) with a power density of 87.86W kg(-1). The internal and charge transfer resistancesof the assembled SCs were 0.54 and 17.86 omega, respectively. Theseinnovative findings provide a universal and KOH-free activation processfor the synthesis of physically activated carbon for all solid-stateSCs applications.
引用
收藏
页码:21653 / 21663
页数:11
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