Microwave-Assisted Preparation of Hierarchical N and O Co-Doped Corn-Cob-Derived Activated Carbon for a High-Performance Supercapacitor

2021 ◽  
Author(s):  
Fangping Wang ◽  
Fenghua Zheng ◽  
Juantao Jiang ◽  
Yahao Li ◽  
Yingtao Luo ◽  
...  
Keyword(s):  
Activated Carbon ◽  
High Performance ◽  
Corn Cob ◽  
Microwave Assisted ◽  
Co Doped

In situ growth of MnO2 nanosheets on activated carbon fibers: a low-cost electrode for high performance supercapacitors

RSC Advances ◽  
2016 ◽  
Vol 6 (18) ◽  
pp. 14819-14825 ◽  
Author(s):  
Kai Zhu ◽  
Yu Wang ◽  
Joel A. Tang ◽  
Hailong Qiu ◽  
Xing Meng ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Hydrothermal Method ◽  
Carbon Fibers ◽  
High Performance ◽  
Low Cost ◽  
Activated Carbon Fibers ◽  
In Situ Growth ◽  
Mno2 Nanosheets ◽  
Microwave Assisted

MnO2 nanosheets were successfully grown in situ on the surface of activated carbon fibers (ACFs) via a facile microwave-assisted hydrothermal method.

Insights into the modeling, characterization and adsorption performance of mesoporous activated carbon from corn cob residue via microwave-assisted H3PO4 activation

2020 ◽  
Vol 21 ◽  
pp. 100688 ◽  
Author(s):  
Ali H. Jawad ◽  
Mondira Bardhan ◽  
Md. Atikul Islam ◽  
Md. Azharul Islam ◽  
Syed Shatir A. Syed-Hassan ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Corn Cob ◽  
Microwave Assisted ◽  
Adsorption Performance ◽  
Mesoporous Activated Carbon ◽  
H3po4 Activation

scholarly journals Factor Affecting Microwave Assisted Preparation of Activated Carbon from Local Raw Materials

2015 ◽  
Vol 47 ◽  
pp. 15-23 ◽  
Author(s):  
Mohamed A. Elsayed ◽  
O.A. Zalat
Keyword(s):  
Activated Carbon ◽  
Surface Area ◽  
Microwave Power ◽  
Bet Surface Area ◽  
Maximum Adsorption Capacity ◽  
Optimum Conditions ◽  
Corn Cob ◽  
Carbon Yield ◽  
Microwave Assisted ◽  
Impregnation Ratio

This study illustrates the preparation of activated carbon (AC) from Corn Cob (CC) via microwave assisted K2CO3 activation. The effect of operational parameters including chemical impregnation ratio (0.25-1.25), microwave power (90 – 800 W) and irradiation time (1 – 9 min) on the carbon yield and adsorption capability of derived Corn Cob Activated Carbon (CCAC) were investigated. The results indicated that the optimum conditions were as follows: microwave power of 600W, microwave radiation time of 5 min and the impregnation ratio of K2CO3 was 0.75 g/g. The optimum conditions resulted in CCAC with a maximum adsorption capacity of 275.32 mg/g for MB and carbon yield of 27.09%. The BET surface area, Langmuir surface area and total pore volume were determined to be 765 m2/g, 834 m2/g and 0.43 cm3/g, respectively.

Oxygen-sulfur-phosphorus co-doped activated carbon derived from lotus stamens for high-performance supercapacitors

2021 ◽  
Author(s):  
Xiangfei CHEN ◽  
Shiyun WAN ◽  
Jianhua DING ◽  
Tianxiang JIN ◽  
Limin LU ◽  
...  
Keyword(s):  
Activated Carbon ◽  
High Performance ◽  
Co Doped

scholarly journals A study on Co doped SnO2 loaded corn cob activated carbon for the photocatalytic degradation of methylene blue dye

2021 ◽  
Author(s):  
Ragupathy S ◽  
Ramamoorthy M
Keyword(s):  
Methylene Blue ◽  
Particle Size ◽  
Activated Carbon ◽  
Photocatalytic Degradation ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Photocatalytic Efficiency ◽  
Corn Cob ◽  
Photocatalytic Mechanism ◽  
Co Doped

Abstract SnO2 with different Co2+ doping concentrations (0.050, 0.075 and 0.10 M), and Co (0.075 M): SnO2/corn cob activated carbon (Co: SnO2/CCAC) were prepared, and are labelled CS1, CS2, CS3 and CS2/CCAC respectively. The CS2/CCAC showed that the particle size is reduced (16.29 nm) with Co2+ doping and CCAC loading. Moreover, CS2/CCAC indicate that the decreased PL intensity and its lower value (2.156 Ω) of impedance from EIS results and increased separation of the photogenerated e−/h+ pairs. Thus, the result showed that CS2/CCAC possesses improved photocatalytic efficiency (95.38 %) as compared to other samples. The photocatalytic mechanism of CS2/CCAC also is discussed.

N,S co-doped 3D mesoporous carbon–Co3Si2O5(OH)4 architectures for high-performance flexible pseudo-solid-state supercapacitors

2017 ◽  
Vol 5 (25) ◽  
pp. 12774-12781 ◽  
Author(s):  
Xinran Li ◽  
Shiyuan Ding ◽  
Xiao Xiao ◽  
Jinying Shao ◽  
Jilei Wei ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Solid State ◽  
Mesoporous Carbon ◽  
High Performance ◽  
Electrochemical Capacitors ◽  
Co Doped

N,S co-doped 3D mesoporous carbon–Co3Si2O5(OH)4 composites are employed as electrodes together with activated carbon for pseudo-solid-state flexible electrochemical capacitors, which show a high performance.

Use of activated carbon to remove undesirable residual amylase from refinery streams

2017 ◽  
pp. 96-103 ◽  
Author(s):  
Gillian Eggleston ◽  
Isabel Lima ◽  
Emmanuel Sarir ◽  
Jack Thompson ◽  
John Zatlokovicz ◽  
...  
Keyword(s):  
Activated Carbon ◽  
High Temperature ◽  
High Performance ◽  
Activated Carbons ◽  
Amylase Activity ◽  
Sugar Industry ◽  
End User ◽  
Customer Complaints ◽  
Carry Over ◽  
Very High

In recent years, there has been increased world-wide concern over residual (carry-over) activity of mostly high temperature (HT) and very high temperature (VHT) stable amylases in white, refined sugars from refineries to various food and end-user industries. HT and VHT stable amylases were developed for much larger markets than the sugar industry with harsher processing conditions. There is an urgent need in the sugar industry to be able to remove or inactivate residual, active amylases either in factory or refinery streams or both. A survey of refineries that used amylase and had activated carbon systems for decolorizing, revealed they did not have any customer complaints for residual amylase. The use of high performance activated carbons to remove residual amylase activity was investigated using a Phadebas® method created for the sugar industry to measure residual amylase in syrups. Ability to remove residual amylase protein was dependent on the surface area of the powdered activated carbons as well as mixing (retention) time. The activated carbon also had the additional benefit of removing color and insoluble starch.

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