Promising Porous Carbon Derived from Celtuce Leaves with Outstanding Supercapacitance and CO2 Capture Performance
Abstract
Business costs and energy/environmental concerns have increased interested in biomass materials for production of activated carbons, especially as electrode materials for supercapacitors or as solid-state adsorbents in CO₂ adsorption area. In this paper, waste celtuce leaves were used to prepare porous carbon by air-drying, pyrolysis at 600 °C in argon, followed by KOH activation. The as-prepared porous carbon have a very high specific surface area of 3404 m²/g and a large pore volume of 1.88 cm³/g. As an electroactive material, the porous carbon exhibits good capacitive performance in KOH aqueous electrolyte, with the specific capacitances of 421 and 273 F/g in three and two-electrode systems, respectively. As a solid-state adsorbent, the porous carbon has an excellent CO₂ adsorption capacity at ambient pressures of up to 6.04 and 4.36 mmol/g at 0 and 25 °C, respectively. With simple production process, excellent recyclability and regeneration stability, the porous carbon that was derived from celtuce leaves is among the most promising materials for high-performance supercapacitors and CO₂ capture.
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ZnCl2 and H3PO4 activation agents contribute to higher yields compared to KOH, accompanied with less porosity, and their acidic factor is suitable for developing large pore structures.
“ZnCl 2 and H 3 PO 4 contribute to the higher yields compared to KOH, accompanied with less porosity, which the acidic factor of ZnCl 2 and H 3 PO 4 are suitable for developing large pore structures [114].”
From Biomass/Biochar carbon materials for CO2 capture and sequestration by cyclic adsorption processes: A review and prospects for future directions (2022) · cites this paper as [114]
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- Authors
- Wang, R., Wang, P., Yan, X., Lang, J., Peng, C., & Xue, Q.
- Affiliations
- University of Chinese Academy of Sciences (CN)
- Lanzhou City University (CN)
- Chinese Academy of Sciences (CN)
- Corresponding author
- Yan, Xingbin
- Venue
- ACS Applied Materials & Interfaces
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-11-01
- Volume
- 4
- Issue
- 11
- Pages
- 5800-5806
- ISSN
- 1944-8244 (ISSN-L)
- 1944-8252
- OpenAlex
- W2329520817
- Cited by
- 475
- References
- 0
- Citations by year
- 2026: 16 · 2025: 19 · 2024: 34 · 2023: 31 · 2022: 46 · 2021: 31 · 2020: 36 · 2019: 56 · 2018: 54 · 2017: 44 · 2016: 40 · 2015: 36 · 2014: 20 · 2013: 12
- FWCI
- 8.40
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- ACS Applied Materials & Interfaces (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Supercapacitor Materials and Fabrication
- Physical Sciences › Engineering › Mechanical Engineering › Carbon Dioxide Capture Technologies
- Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
- Keywords
- porous carbon, biomass-derived carbon, supercapacitors, CO2 adsorption, KOH activation, pyrolysis, specific capacitance, specific surface area, biomass waste valorization, electrode materials, adsorbent regeneration
- MeSH terms
- Adsorption, Carbon, Carbon Dioxide, Electronics, Equipment Design, Electric Power Supplies, Porosity, Plant Leaves, Equipment Failure Analysis, Electric Capacitance
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