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    Hollow Carbon Spheres with Abundant Micropores for Enhanced CO2 Adsorption

    Access Status
    Fulltext not available
    Authors
    Li, X.
    Bai, S.
    Zhu, Z.
    Sun, J.
    Jin, X.
    Wu, X.
    Liu, Jian
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Li, X. and Bai, S. and Zhu, Z. and Sun, J. and Jin, X. and Wu, X. and Liu, J. 2017. Hollow Carbon Spheres with Abundant Micropores for Enhanced CO2 Adsorption. Langmuir. 33 (5): pp. 1248-1255.
    Source Title
    Langmuir
    DOI
    10.1021/acs.langmuir.6b04131
    ISSN
    0743-7463
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/52826
    Collection
    • Curtin Research Publications
    Abstract

    The interest in the design and controllable fabrication of hollow carbon spheres (HCSs) emanates from their tremendous potential applications in adsorption, energy conversion and storage, and catalysis. However, the effective synthesis of uniform HCSs with high surface area and abundant micropores remains a challenge. In this work, HCSs with tunable microporous shells were rationally synthesized via the hard-template method using resorcinol (R) and formaldehyde (F) as a carbon precursor. HCSs with a very high surface area (1369 m2/g) and abundant micropores (0.53 cm3/g) can be obtained with the assistance of additional inorganic silanes (TEOS) simultaneously with the carbon source (RF). Interestingly, the extra-abundant micropores showed favorable adsorption for CO2, resulting in a 1.5 times increase in the CO2 adsorption capacity compared to that of normal HCSs under the same conditions. Meanwhile, these HCSs hold potential for use in the separation of gases such as CO2 and N2. © 2017 American Chemical Society.

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