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Abstract Over the last two decades, polymers with superior H2/CO2separation properties at 100–300 °C have gathered significant interest for H2purification and CO2capture. This timely review presents various strategies adopted to molecularly engineer polymers for this application. We first elucidate the Robeson's upper bound at elevated temperatures for H2/CO2separation and the advantages of high‐temperature operation (such as improved solubility selectivity and absence of CO2plasticization), compared with conventional membrane gas separations at ~35 °C. Second, we describe commercially relevant membranes for the separation and highlight materials with free volumes tuned to discriminate H2and CO2, including functional polymers (such as polybenzimidazole) and engineered polymers by cross‐linking, blending, thermal treatment, thermal rearrangement, and carbonization. Third, we succinctly discuss mixed matrix materials containing size‐sieving or H2‐sorptive nanofillers with attractive H2/CO2separation properties.
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Synthesis of SnO2 / TiO2 micro belt fibers from polymer composite precursors and their applications in Li‐ion batteries*
- Award ID(s):
- 2122178
- PAR ID:
- 10420476
- Date Published:
- Journal Name:
- Polymer Engineering & Science
- Volume:
- 62
- Issue:
- 2
- ISSN:
- 0032-3888
- Page Range / eLocation ID:
- 360 to 372
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
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Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.1002/pen.25799
