Carbon letters

  • Volume 19
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  • Pages.99-103
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  • 2016
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  • 1976-4251(pISSN)
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  • 2233-4998(eISSN)
Korean Carbon Society (한국탄소학회)
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KOH-activated graphite nanofibers as CO2 adsorbents

  • Yuan, Hui (Department of Chemical Engineering, College of Engineering, Yanbian University) ;
  • Meng, Long-Yue (Department of Chemical Engineering, College of Engineering, Yanbian University) ;
  • Park, Soo-Jin (Department of Chemistry, Inha University)
  • Received : 2015.09.07
  • Accepted : 2016.04.26
  • Published : 2016.07.31
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Abstract

Porous carbons have attracted much attention for their novel application in gas storage. In this study, porous graphite nano-fiber (PGNFs)-based graphite nano fibers (GNFs) were prepared by KOH activation to act as adsorbents. The GNFs were activated with KOH by changing the GNF/KOH weight ratio from 0 through 5 at 900℃. The effects of the GNF/KOH weight ratios on the pore structures were also addressed with scanning electron microscope and N2 adsorption/desorption measurements. We found that the activated GNFs exhibited a gradual increase of CO2 adsorption capacity at CK-3 and then decreased to CK-5, as determined by CO2 adsorption isotherms. CK-3 had the narrowest micropore size distribution (0.6–0.78 nm) among the treated GNFs. Therefore, KOH activation was not only a significant method for developing a suitable pore-size distribution for gas adsorption, but also increased CO2 adsorption capacity as well. The study indicated that the sample prepared with a weight ratio of ‘3’ showed the best CO2 adsorption capacity (70.8 mg/g) as determined by CO2 adsorption isotherms at 298 K and 1 bar.

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References

  1. Schuur EAG, McGuire AD, Schädel C, Grosse G, Harden JW, Hayes DJ, Hugelius G, Koven CD, Kuhry P, Lawrence DM, Natali SM, Olefeldt D, Romanovsky VE, Schaefer K, Turetsky MR, Treat CC, Vonk JE. Climate change and the permafrost carbon feedback. Nature, 520, 171 (2015). http://dx.doi.org/10.1038/nature14338.
  2. Cooper AI. Materials chemistry: cooperative carbon capture. Nature, 519, 294 (2015). http://dx.doi.org/10.1038/nature14212.
  3. Joos F. Global warming: growing feedback from ocean carbon to climate. Nature, 522, 295 (2015). http://dx.doi.org/10.1038/522295a.
  4. Tan KW, Jung B, Werner JG, Rhoades ER, Thompson MO, Wiesner U. Transient laser heating induced hierarchical porous structures from block copolymer-directed self-assembly. Science, 349, 54 (2015). http://dx.doi.org/10.1126/science.aab0492.
  5. Liu Z, Guan D, Wei W, Davis SJ, Ciais P, Bai J, Peng S, Zhang Q, Hubacek K, Marland G, Andres RJ, Crawford-Brown D, Lin J, Zhao H, Hong C, Boden TA, Feng K,Peters GP, Xi F, Liu J, Li Y, Zhao Y, Zeng N, He K. Reduced carbon emission estimates from fossil fuel combustion and cement production in China. Nature, 524, 335 (2015). http://dx.doi.org/10.1038/nature14677.
  6. Mcjeon H, Edmonds J, Bauer N, Clarke L, Fisher B, Flannery BP, Hilaire J, Krey V, Marangoni G, Mi R, Riahi K, Rogner H, Tavoni M. Limited impact on decadal-scale climate change from increased use of natural gas. Nature, 514, 482 (2014). http://dx.doi.org/10.1038/nature13837.
  7. Lee SY, Park SJ. A review on solid adsorbents for carbon dioxide capture. J Ind Eng Chem, 23, 1 (2015). http://dx.doi.org/10.1016/j.jiec.2014.09.001.
  8. Lee YC, Lee SM, Hong WG, Huh YS, Park SY, Lee SC, Lee J, Lee JB, Lee HU, Kim HJ. Carbon dioxide capture on primary amine groups entrapped in activated carbon at low temperatures. J Ind Eng Chem, 23, 16 (2015). http://dx.doi.org/10.1016/j.jiec.2014.08.020.
  9. Mirzaei F, Rezaei M, Meshkani F, Fattah Z. Carbon dioxide reforming of methane for syngas production over Co–MgO mixed oxide nanocatalysts. J Ind Eng Chem, 21, 662 (2015). http://dx.doi.org/10.1016/j.jiec.2014.03.034.
  10. Lee CH, Hyeon DH, Jung H, Chung W, Jo DH, Shin DK, Kim SH. Effects of pore structure and PEI impregnation on carbon dioxide adsorption by ZSM-5 zeolites. J Ind Eng Chem, 23, 251 (2015). http://dx.doi.org/10.1016/j.jiec.2014.08.025.
  11. Kacem M, Pellerano M, Delebarre A. Pressure swing adsorption for CO2/N2 and CO2/CH4 separation: Comparison between activated carbons and zeolites performances. Fuel Process Technol, 138, 271 (2015). http://dx.doi.org/10.1016/j.fuproc.2015.04.032.
  12. Modak A, Bhaumik A. Porous carbon derived via KOH activation of a hypercrosslinked porous organic polymer for efficient CO2, CH4, H2 adsorptions and high CO2/N2 selectivity. J Solid State Chem, 232, 157 (2015). http://dx.doi.org/10.1016/j.jssc.2015.09.022.
  13. Hiremath V, Jadhav AH, Lee H, Kwon S, Seo JG. Highly reversible CO2 capture using amino acid functionalized ionic liquids immobilized on mesoporous silica. Chem Eng J, 287, 602 (2016). http://dx.doi.org/10.1016/j.cej.2015.11.075.
  14. Song G, Ding YD, Zhu X, Liao Q. Carbon dioxide adsorption characteristics of synthesized MgO with various porous structures achieved by varying calcination temperature. Colloids Surf A: Physicochem Eng Asp, 470, 39 (2015). http://dx.doi.org/10.1016/j.colsurfa.2015.01.061.
  15. Xue W, Li Z, Huang H, Yang Q, Liu D, Xu Q, Zhong C. Effects of ionic liquid dispersion in metal-organic frameworks and covalent organic frameworks on CO2 capture: a computational study. Chem Eng Sci, 140, 1 (2016). http://dx.doi.org/10.1016/j.ces.2015.10.003.
  16. Lee E, Kwon SH, Choi PR, Jung JC, Kim MS. Activated carbons prepared from mixtures of coal tar pitch and petroleum pitch and their electrochemical performance as electrode materials for electric double-layer capacitor. Carbon Lett, 16, 78 (2015). http://dx.doi.org/10.5714/cl.2015.16.2.078.
  17. Park MS, Lee SE, Kim MI, Lee YS. CO2 adsorption characteristics of slit-pore shaped activated carbon prepared from cokes with high crystallinity. Carbon Lett, 16, 45 (2015). http://dx.doi.org/10.5714/cl.2015.16.1.045.
  18. Kim M, Kim K, Kim S. Conducting and interface characterization of carbonate-type organic electrolytes containing EMImBF4 as an additive against activated carbon electrode. Carbon Lett, 16, 51(2015). http://dx.doi.org/10.5714/cl.2015.16.1.051.
  19. Bae KM, Park SJ. A study on elemental mercury adsorption behaviors of nanoporous carbons with carbon dioxide activation. Carbon Lett, 15, 295 (2014). http://dx.doi.org/10.5714/cl.2014.15.4.295.
  20. Raza A, Wang J, Yang S, Si Y, Ding B. Hierarchical porous carbon nanofibers via electrospinning. Carbon Lett, 15, 1 (2014). http://dx.doi.org/10.5714/cl.2014.15.1.001.
  21. Wang J, Senkovska I, Kaskel S, Liu Q. Chemically activated fungi-based porous carbons for hydrogen storage. Carbon, 75, 372 (2014). http://dx.doi.org/10.1016/j.carbon.2014.04.016.
  22. Lee SM, Lee SC, Hong WG, Kim HJ. N2 and H2 adsorption behavior of KOH-activated ordered mesoporous carbon. Chem Phys Lett, 554, 133 (2012). http://dx.doi.org/10.1016/j.cplett.2012.10.026.
  23. Meng LY, Park SJ. Effect of heat treatment on CO2 adsorption of KOH-activated graphite nanofibers. J Colloid Interface Sci, 352, 498 (2010). http://dx.doi.org/10.1016/j.jcis.2010.08.048.
  24. Meng LY, Park SJ. MgO-templated porous carbons-based CO2 adsorbents produced by KOH activation. Mater Chem Phys, 137, 91(2012). http://dx.doi.org/10.1016/j.matchemphys.2012.08.043.
  25. Robau-Sánchez A, Aguilar-Elguézabal A, Aguilar-Pliego J. Chemical activation of Quercus agrifolia char using KOH: evidence of cyanide presence. Microporous Mesoporous Mater, 85, 331(2005). http://dx.doi.org/10.1016/j.micromeso.2005.07.003.
  26. Wang J, Yang Y, Kang F. Porous carbon nanofiber paper as an effective interlayer for high-performance lithium-sulfur batteries. Electrochim Acta, 168, 271 (2015). http://dx.doi.org/10.1016/j.electacta.2015.04.055.
  27. Lee SM, Lee SC, Hong WG, Kim HJ. The effects of GNFs/KOH ratio on the pore structures of GNFs were investigated by N2/77 K full isotherms and SEM. Chem Phys Lett, 554, 133 (2012). https://doi.org/10.1016/j.cplett.2012.10.026
  28. Ren XL, Meng LY, Meng W. Preparation of porous carbons from PVDF and characterization of its carbon dioxide adsorption properties. Mater Rev, 27, 248 (2013).
  29. Alabadi A, Razzaque S, Yang YW, Chen S, Tan B. Highly porous activated carbon materials from carbonized biomass with high CO2 capturing capacity. Chem Eng J, 281, 606 (2015). http://dx.doi.org/10.1016/j.cej.2015.06.032.
  30. Jin Y, Hawkins SC, Huynh CP, Su S. Carbon nanotube modified carbon composite monoliths as superior adsorbents for carbon dioxide capture. Energy Environ Sci, 6, 2591 (2013). http://dx.doi.org/10.1039/c3ee24441e.

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