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Porous Carbons for Gas Adsorption and Capture

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Applied Chemistry".

Deadline for manuscript submissions: 31 July 2025 | Viewed by 965

Special Issue Editor


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Guest Editor
College of Chemistry and Materials Sciences, Zhejiang Normal University, Jinhua, China
Interests: gas adsorption and capture; separation process; porous carbons; heteroatom doping; gas adsorption mechanism

Special Issue Information

Dear Colleagues,

Porous carbon materials, with their unique porous structures and excellent chemical stability, have shown great potential in the field of gas adsorption and capture. These materials play a significant role in environmental management, energy storage, and catalysis. By employing various synthesis methods and post-treatment techniques, the pore characteristics of porous carbon can be optimized to enhance their adsorption capacity and selectivity for specific gases, especially carbon dioxide (CO2). We warmly invite you to submit your research and review papers on the topic of porous carbon materials in the field of gas adsorption and capture. We are particularly interested in themes including, but not limited to, the following:

  • The synthesis and functionalization of porous carbon materials;
  • The impact of pore structure on adsorption performance;
  • Carbon dioxide capture technologies and their industrial applications;
  • Applications of porous carbon materials in environmental management and catalysis;
  • Studies on adsorption mechanisms and kinetics;
  • Sustainability and recycling of porous carbon materials.

Prof. Dr. Xin Hu
Guest Editor

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Keywords

  • porous carbons
  • gas adsorption
  • gas capture
  • carbon sequestration
  • surface chemistry
  • material synthesis

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Published Papers (1 paper)

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Research

15 pages, 2961 KiB  
Article
Sustainable CO2 Capture: N,S-Codoped Porous Carbons Derived from Petroleum Coke with High Selectivity and Stability
by Jiawei Shao, Yingyi Wang, Mingyang Che, Ya Liu, Yongfu Jiang, Qiang Xiao, Muslum Demir, Linlin Wang and Xin Hu
Molecules 2025, 30(2), 426; https://doi.org/10.3390/molecules30020426 - 20 Jan 2025
Cited by 7 | Viewed by 729
Abstract
CO2 capture from the flue gas is a promising approach to mitigate global warming. However, regulating the carbon-based adsorbent in terms of textural and surface modification is still a challenge. To overcome this issue, the present study depicts the development of cost-effective [...] Read more.
CO2 capture from the flue gas is a promising approach to mitigate global warming. However, regulating the carbon-based adsorbent in terms of textural and surface modification is still a challenge. To overcome this issue, the present study depicts the development of cost-effective and high-performance CO2 adsorbents derived from petroleum coke, an industrial by-product, using a two-step process involving thiourea modification and KOH activation. A series of N,S-codoped porous carbons was synthesized by varying activation temperatures and KOH quantity. The optimized sample exhibited a high specific surface area of 1088 m2/g, a narrow micropore volume of 0.52 cm3/g, and considerable heteroatom doping (1.57 at.% nitrogen and 0.19 at.% sulfur). The as-prepared adsorbent achieved a CO2 adsorption capacity of 3.69 and 5.08 mmol/g at 1 bar, 25 °C and 0 °C, respectively, along with a CO2/N2 selectivity of 17. Adsorption kinetics showed 90% of equilibrium uptake was achieved within 5 min, while cyclic studies revealed excellent stability with 97% capacity retention after five cycles. Thermodynamic analysis indicated moderate isosteric heat of adsorption (Qst) values ranging from 18 to 47 kJ/mol, ensuring both strong adsorption and efficient desorption. These findings highlight the potential of petroleum coke-derived porous carbons for sustainable and efficient CO2 capture applications. Full article
(This article belongs to the Special Issue Porous Carbons for Gas Adsorption and Capture)
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