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Showing 1–4 of 4 results
Advanced filters: Author: Kuang-Jung Hsu Clear advanced filters

  • Graphene-based membranes are attractive for capturing CO2, with separation selectivity typically achieved by control of pore size. Here Hsu et al. incorporate pyridinic nitrogen species at the pore edges in graphene, leading to competitive CO2 binding and enhanced separation performance.

    • Kuang-Jung Hsu
    • Shaoxian Li
    • Kumar Varoon Agrawal
    Research
    Nature Energy
    Volume: 9, P: 964-974

  • Due to the very low CO2 content in dilute flue gas emissions, membrane-based carbon capture is typically deemed infeasible. This uncertainty-aware techno-economic analysis suggests that pyridinic-graphene membranes, which perform better as CO2 concentration decreases, offer a viable solution.

    • Marina Micari
    • Kuang-Jung Hsu
    • Kumar Varoon Agrawal
    ResearchOpen Access
    Nature Sustainability
    Volume: 9, P: 164-175

  • Atom-thin graphene membranes for gas separation face scale-up challenges. The authors introduce scalable and reproducible approaches that simplify the fabrication of atom-thin porous graphene membranes, achieving membrane areas up to 50 cm2 with promising performance for point-source carbon capture.

    • Jian Hao
    • Piotr Mieczyslaw Gebolis
    • Kumar Varoon Agrawal
    ResearchOpen Access
    Nature Chemical Engineering
    Volume: 2, P: 241-251

  • The preparation of atom-thick lattices with Å-scale pores is desirable for achieving ion selectivity and high ion flux. Here authors present a cm-scale membrane made of atom-thick graphene film hosting zero-dimensional pores spanning only a few Å, repaired using an in situ electrochemical strategy, yielding high Li+/Mg2+ separation performance.

    • Zongyao Zhou
    • Kangning Zhao
    • Kumar Varoon Agrawal
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-11