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Synthesis, characterization, and KOH activation of nanoporous carbon for increasing CO2 adsorption capacity

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Abstract

Ordered nanoporous carbons (ONCs) were prepared using a soft-templating method. To improve the CO2 adsorption efficiency, ONCs were chemically activated to obtain high specific surface area and micro-/mesopore volume with different KOH amounts (i.e., 0, 1, 2, 3, and 4) as an activating agent. The prepared nanoporous carbons (NCs) materials were analyzed by low-angle X-ray diffraction for confirmation of synthesized ONCs structures. The structural properties of the NCs materials were analyzed by high-angle X-ray diffraction. The textural properties of the NCs materials were examined using the N2/77 K adsorption isotherms according to the Brunauer–Emmett–Teller equation. The CO2 adsorption capacity was measured by CO2 isothermal adsorption at 298 K/1 bar. From the results, the NCs activated with KOH showed that the increasing specific surface areas and total pore volumes resulted in the enhancement of CO2 adsorption capacity.

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Acknowledgments

This work was supported by the Korea CCS R&D Center (KCRC) grant by Ministry of Education, Science and Technology (0031985) and the Carbon Valley Project by Ministry of Trade, Industry and Energy, Korea.

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Authors and Affiliations

  1. Department of Chemistry, Inha University, 100 Inharo, Incheon, South Korea

    Seul-Yi Lee, Hye-Min Yoo & Soo-Jin Park

  2. Department of Mechanical Engineering, College of Engineering, Kyung Hee University, Yongin, South Korea

    Kyong Yop Rhee

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  1. Seul-Yi Lee
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  2. Hye-Min Yoo
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  3. Kyong Yop Rhee
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  4. Soo-Jin Park
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Correspondence to Soo-Jin Park.

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Lee, SY., Yoo, HM., Rhee, K.Y. et al. Synthesis, characterization, and KOH activation of nanoporous carbon for increasing CO2 adsorption capacity. Res Chem Intermed 40, 2535–2542 (2014). https://doi.org/10.1007/s11164-014-1665-y

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  • DOI: https://doi.org/10.1007/s11164-014-1665-y

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