An Hetero-Epitaxially Grown Zeolite Membrane

Yanghwan Jeong, Sungwon Hong, Eunhee Jang, Eunjoo Kim, Hionsuck Baik, Nakwon Choi, Alex C.K. Yip, Jungkyu Choi

Research output: Contribution to journalArticle

Abstract

The secondary growth methodology to form zeolite membranes has stringent requirements for homogeneous epitaxial intergrowth of the seed layer and limits the number of accessible high-quality zeolite membranes. Despite previous reports on hetero-epitaxial growth, high-performance zeolite membranes have yet to be reported using this approach. Here, the successful hetero-epitaxial growth of highly siliceous ZSM-58 (DDR-type zeolite) films from a SSZ-13 (CHA-type zeolite) seed layer is reported. The resulting membranes show excellent CO2 perm-selectivities, having maximum CO2 /N2 and CO2 /CH4 separation factors (SFs) as high as about 17 and 279, respectively, at 30 °C. Furthermore, the hybrid membrane maintains the CO2 perm-selectivity in the presence of water vapor (the third main component in both cases), that is, CO2 /N2 SF of about 14 and CO2 /CH4 SF of about 78, respectively, at 50 °C (a representative temperature of both CO2-containing streams).

Original languageEnglish
Pages (from-to)18654-18662
Number of pages9
JournalAngewandte Chemie - International Edition
Volume58
Issue number51
DOIs
Publication statusPublished - 2019 Dec 16

Fingerprint

Zeolites
Membranes
Epitaxial growth
Seed
Steam
Water vapor

Keywords

  • carbon dioxide
  • electron microscopy
  • membranes
  • separations
  • zeolites

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

Cite this

Jeong, Y., Hong, S., Jang, E., Kim, E., Baik, H., Choi, N., ... Choi, J. (2019). An Hetero-Epitaxially Grown Zeolite Membrane. Angewandte Chemie - International Edition, 58(51), 18654-18662. https://doi.org/10.1002/anie.201911164

An Hetero-Epitaxially Grown Zeolite Membrane. / Jeong, Yanghwan; Hong, Sungwon; Jang, Eunhee; Kim, Eunjoo; Baik, Hionsuck; Choi, Nakwon; Yip, Alex C.K.; Choi, Jungkyu.

In: Angewandte Chemie - International Edition, Vol. 58, No. 51, 16.12.2019, p. 18654-18662.

Research output: Contribution to journalArticle

Jeong, Y, Hong, S, Jang, E, Kim, E, Baik, H, Choi, N, Yip, ACK & Choi, J 2019, 'An Hetero-Epitaxially Grown Zeolite Membrane', Angewandte Chemie - International Edition, vol. 58, no. 51, pp. 18654-18662. https://doi.org/10.1002/anie.201911164
Jeong Y, Hong S, Jang E, Kim E, Baik H, Choi N et al. An Hetero-Epitaxially Grown Zeolite Membrane. Angewandte Chemie - International Edition. 2019 Dec 16;58(51):18654-18662. https://doi.org/10.1002/anie.201911164
Jeong, Yanghwan ; Hong, Sungwon ; Jang, Eunhee ; Kim, Eunjoo ; Baik, Hionsuck ; Choi, Nakwon ; Yip, Alex C.K. ; Choi, Jungkyu. / An Hetero-Epitaxially Grown Zeolite Membrane. In: Angewandte Chemie - International Edition. 2019 ; Vol. 58, No. 51. pp. 18654-18662.
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