Supercapacitor and room temperature H, CO2 and CH4 gas storage characteristics of commercial nanoporous activated carbon

Ramesh, A.; Jeyavelan, M.; Balan, J.A. Alex Rajju; Srivastava, O.N.; Hudson, M. Sterlin Leo

doi:10.1016/j.jpcs.2021.109969

Cited by 19 publications

(14 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this paper, in order to capture the CO 2 storage behavior under the nanoconfinement effect, the simplified local density (SLD) theoretical framework, , based on the equilibrium of chemical potential of each particle in the whole nanoscale space, is utilized herein. Both the intermolecular interactions and the molecule–wall interactions are well incorporated in this framework; the behavior of CO 2 molecules at arbitrary positions inside nanopores can be obtained reasonably.…”

Section: Introductionmentioning

confidence: 99%

CO₂ Storage Behavior in Nanopores: Implications for CO₂ Sequestration in Ultra-Tight Geological Formations

Huang

Lü

et al. 2023

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

The fatal challenge that human beings are currently facing is global warming as a result of excessive CO 2 emission in the atmosphere. CO 2 sequestration, gaseous CO 2 injection into ultra-tight geological sites, is regarded as a promising approach to achieve CO 2 reduction substantially. In this work, emphasis is paid to CO 2 storage potential inside depleted shale or coal seam where the presence of nanopores is rich, and CO 2 molecules store in both bulk and adsorption states in nanopores. The microscopic characterization on CO 2 behavior in the nanospace, particularly quantitative description on the difference between CO 2 in the adsorption and bulk states, is still lacking. With the intention to shed light on nanoconfined CO 2 behavior, a simple yet robust theoretical work rooting in the chemical potential equilibrium of each CO 2 molecule in the entire system is implemented, and the shift of critical properties due to the nanoconfinement effect is coupled. Then, the CO 2 density can be described as a function of distance away from the nanopore wall; the CO 2 molecule is found to accumulate more densely while approaching the nanopore wall, suggesting an adsorption behavior from microscopic perspective. Results show that (a) the CO 2 adsorption-phase thickness is insensitive to nanopore size, ranging from 0.58 to 0.64 nm, and the ratio of adsorption density over bulk density could reach 1−2 orders of magnitude; (b) the CO 2 amount the 2 nm nanopore is able to store could reach over 7.2 times that in macropores, displaying the unique advantage of shale and coal formations on CO 2 sequestration over conventional oil/gas reservoirs; (c) increasing pressure can improve the total CO 2 geological sequestration performance, and the improvement of magnitude at the lowpressure range could be as great as 2.9 times that at a high-pressure range. This work provides a doable framework to investigate the CO 2 existence behavior in nanopores, enriching the theoretical basis to identify favorable geological sites for CO 2 sequestration.

show abstract

Section: Introductionmentioning

confidence: 99%

CO₂ Storage Behavior in Nanopores: Implications for CO₂ Sequestration in Ultra-Tight Geological Formations

Huang

Lü

et al. 2023

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

show abstract

“…Degradation beyond 550 °C results in a major weight loss due to the cleavage of carbon–carbon bonds. 43 The degradation pattern of the ternary composite is very similar to that of PA/AC. But when compared to pure PA, the thermal stability is improved, which is observable from the weight loss percentage.…”

Section: Resultsmentioning

confidence: 70%

Biogenic MnO₂nanoparticles derived from aCedrus deodarapine needle extract and their composites with polyaniline/activated charcoal as an electrode material for supercapacitor applications

et al. 2022

View full text Add to dashboard Cite

show abstract

“…It can be observed that the 2-HPC lost nearly 5.3% of its weight within 100 °C in air due to the surface adsorbed moisture. Between 470-660 °C, a significant weight loss of 2-HPC can be observed, which originates from the decomposition of carbon-carbon bonds [27]. After heating at 1000 °C under air, the residual content of ash was found to be 4.83%.…”

Section: Resultsmentioning

confidence: 98%

Bio-Phenolic Resin Derived Porous Carbon Materials for High-Performance Lithium-Ion Capacitor

Cho

Chang‐Jian

et al. 2022

Polymers

View full text Add to dashboard Cite

In this article, hierarchical porous carbon (HPC) with high surface area of 1604.9 m2/g is prepared by the pyrolysis of rubberwood sawdust using CaCO3 as a hard template. The bio-oil pyrolyzed from the rubber sawdust, followed by the polymerization reaction to form resole phenolic resin, can be used as a carbon source to prepare HPC. The biomass-derived HPC shows a three-dimensionally interconnected morphology which can offer a continuous pathway for ionic transport. The symmetrical supercapacitors based on the as-prepared HPC were tested in 1.0 M tetraethylammonium tetrafluoroborate / propylene carbonate electrolyte. The results of electrochemical analysis show that the HPC-based supercapacitor exhibits a high specific capacitance of 113.3 F/g at 0.5 A/g with superior rate capability and cycling stability up to 5000 cycles. Hybrid lithium-ion capacitors (LICs) based on the HPC and Li4Ti5O12 (LTO) were also fabricated. The LICs have a maximum energy density of 113.3 Wh/kg at a power density of 281 W/kg. Moreover, the LIC also displays a remarkable cycling performance with a retention of 92.8% after 3000 cycles at a large current density of 0.75 A/g, suggesting great potential application in the energy storage of the LIC.

show abstract

Supercapacitor and room temperature H, CO2 and CH4 gas storage characteristics of commercial nanoporous activated carbon

Cited by 19 publications

References 30 publications

CO₂ Storage Behavior in Nanopores: Implications for CO₂ Sequestration in Ultra-Tight Geological Formations

CO₂ Storage Behavior in Nanopores: Implications for CO₂ Sequestration in Ultra-Tight Geological Formations

Biogenic MnO₂nanoparticles derived from aCedrus deodarapine needle extract and their composites with polyaniline/activated charcoal as an electrode material for supercapacitor applications

Bio-Phenolic Resin Derived Porous Carbon Materials for High-Performance Lithium-Ion Capacitor

Contact Info

Product

Resources

About

Supercapacitor and room temperature H, CO2 and CH4 gas storage characteristics of commercial nanoporous activated carbon

Cited by 19 publications

References 30 publications

CO2 Storage Behavior in Nanopores: Implications for CO2 Sequestration in Ultra-Tight Geological Formations

CO2 Storage Behavior in Nanopores: Implications for CO2 Sequestration in Ultra-Tight Geological Formations

Biogenic MnO2nanoparticles derived from aCedrus deodarapine needle extract and their composites with polyaniline/activated charcoal as an electrode material for supercapacitor applications

Bio-Phenolic Resin Derived Porous Carbon Materials for High-Performance Lithium-Ion Capacitor

Contact Info

Product

Resources

About

CO₂ Storage Behavior in Nanopores: Implications for CO₂ Sequestration in Ultra-Tight Geological Formations

CO₂ Storage Behavior in Nanopores: Implications for CO₂ Sequestration in Ultra-Tight Geological Formations

Biogenic MnO₂nanoparticles derived from aCedrus deodarapine needle extract and their composites with polyaniline/activated charcoal as an electrode material for supercapacitor applications