Engineered hierarchical porous carbons for supercapacitor applications through chemical pretreatment and activation of biomass precursors

Yakaboylu, Gunes A.; Jiang, Changle; Yumak, Tuğrul; Zondlo, John W.; Wang, Jingxin; Sabolsky, Edward M.

doi:10.1016/j.renene.2020.08.092

Cited by 137 publications

(46 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Hemicellulose is represented by νC–H bonds (2918.73 cm −1 ), –C=O (1730.28 cm −1 ), –COC anti-symmetric bridge (1160 cm −1 ), and ν–C–O (1029.70 cm −1 ) functional groups. Finally, the νC–H bonds (2918.73 cm −1 ), ν–C=C aromatic vibrations (1593.21 cm −1 and 1504.88 cm −1 ), δ–C–H of aliphatic hydrocarbons (1454.99 cm −1 ), ν–CO stretching of acetyl groups (1250 cm −1 ), and –CH groups (750–898 cm −1 ) are components of lignin structure 14 . These bands or peaks found on dried raw eucalyptus wood chips have disappeared after steam activation at temperatures of 500–700 °C.…”

Section: Resultsmentioning

confidence: 99%

Activated carbon preparation from eucalyptus wood chips using continuous carbonization–steam activation process in a batch intermittent rotary kiln

Mopoung

Dejang

2021

Sci Rep

View full text Add to dashboard Cite

The production of activated carbon from eucalyptus wood chips by steam activation in a 2000 kg batch intermittent rotary kiln with continuous carbonization–steam activation process conducted at 500 °C to 700 °C was studied. The activated carbon products were characterized by FTIR, SEM–EDS, Raman spectroscopy, and BET analysis. Percent yields, iodine number, and methylene blue number of the produced activated carbon materials were measured as well. It was shown that the percent yields of the activated carbon materials made in the temperature range from 500 to 700 °C are 21.63 ± 1.52%–31.79 ± 0.70% with capacities of 518–737 mg I2/g and 70.11–96.93 mg methylene blue/g. The BET surface area and micropore volume of the activated carbons are 426.8125–870.4732 m2/g and 0.102390–0.215473 cm3/g, respectively. The steam used in the process could create various oxygen containing surface functional groups such as –CO and –COC groups. In addition, it could also increase the amorphous nature of the activated carbon product. These properties of the activated carbon products are increased with increasing steam activation temperature from 500 to 700 °C. As a result, the activated carbon materials produced at activation temperatures of 600 °C and 700 °C exhibit higher adsorption.

show abstract

Section: Resultsmentioning

confidence: 99%

Activated carbon preparation from eucalyptus wood chips using continuous carbonization–steam activation process in a batch intermittent rotary kiln

Mopoung

Dejang

2021

Sci Rep

View full text Add to dashboard Cite

show abstract

“…It can be clearly seen that the specific surface area enhancement directly brings the increase in specific capacitance value. Yakaboylu et al [53] reported that the tuning of the pretreatment parameters is very important to control the final pore composition in lignocellulose based activated carbon production. They used the Miscanthus grass biomass as the precursor for the sheet-like activated carbon synthesis and obtained around 190 F g −1 capacitance value.…”

Section: Biomass Based Materials In Supercapacitorsmentioning

confidence: 99%

Biomass Based Materials in Electrochemical Supercapacitor Applications

Aslan¹,

Altuntaş²

2022

Supercapacitors for the Next Generation

View full text Add to dashboard Cite

Biomass is the general term for organic substances derived from living organisms (plants and animals). Since, biomass is a renewable, sustainable, innovative, low cost and carbon-neutral energy source, the applications of nano-micro particles produced from biomass in electrochemical applications have emerged. A large number of carbon-based materials, such as featured activated carbon, carbon nanotube, C-dots, biochar, hybrid carbon-metal/metal oxide … etc. can be produced from divergent types of biomass. With the growing energy need in the world, supercapacitors have also developed considerably besides the energy generation and storage methods. The supercapacitor is an energy storage system that can work reversibly to provide high energy in a short time. In these systems, electrode structure and surface properties are crucial for energy capacity enhancement. In this sense, electrode modifications with the above-mentioned biomass-based nano-micro structures are widely used in supercapacitor applications.

show abstract

“…To date, ACs have been the most used electrode materials in SCs due to their easy preparation methods, very high porosity, and SSA, and excellent electrical conductivity [ 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 ]. Both the biomass precursor and the preparation method are crucial for the ACs properties and greatly influence the final CEs’ electrochemical features (See Table 1 ).…”

Section: Biomass-based Electrodes For Supercapacitorsmentioning

confidence: 99%

“…Yakaboylu et al [ 41 ] used Miscanthus grass as the primary precursor for CEs preparation through KOH activation. They concluded that the porosity and chemical characteristics could be controlled by the ratio between biomass/activation agent.…”

Section: Biomass-based Electrodes For Supercapacitorsmentioning

confidence: 99%

A Short Review on the Electrochemical Performance of Hierarchical and Nitrogen-Doped Activated Biocarbon-Based Electrodes for Supercapacitors

et al. 2021

View full text Add to dashboard Cite

Cheap and efficient carbon electrodes (CEs) for energy storage systems (ESS) such as supercapacitors (SCs) and batteries are an increasing priority issue, among other things, due to a globally increasing share of intermittent electricity production (solar and wind) and electrification of transport. The increasing consumption of portable and non-portable electronic devices justifies research that enables environmentally and economically sustainable production (materials, processing techniques, and product design) of products with a high electrochemical performance at an acceptable cost. Among all the currently explored CEs materials, biomass-based activated carbons (AC) present enormous potential due to their availability and low-cost, easy processing methods, physicochemical stability, and methods for self-doping. Nitrogen doping methods in CEs for SCs have been demonstrated to enhance its conductivities, surface wettability, and induced pseudocapacitance effect, thereby delivering improved energy/power densities with versatile properties. Herein, a short review is presented, focusing on the different types of natural carbon sources for preparing CEs towards the fabrication of SCs with high electrochemical performance. The influences of ACs’ pore characteristics (micro and mesoporosity) and nitrogen doping on the overall electrochemical performance (EP) are addressed.

show abstract

Engineered hierarchical porous carbons for supercapacitor applications through chemical pretreatment and activation of biomass precursors

Cited by 137 publications

References 65 publications

Activated carbon preparation from eucalyptus wood chips using continuous carbonization–steam activation process in a batch intermittent rotary kiln

Activated carbon preparation from eucalyptus wood chips using continuous carbonization–steam activation process in a batch intermittent rotary kiln

Biomass Based Materials in Electrochemical Supercapacitor Applications

A Short Review on the Electrochemical Performance of Hierarchical and Nitrogen-Doped Activated Biocarbon-Based Electrodes for Supercapacitors

Contact Info

Product

Resources

About