High-Throughput Synthesis and Structure of Zeolite ZSM-43 with Two-Directional 8-Ring Channels

Willhammar, TomStockholms universitet,Institutionen för material- och miljökemi (MMK) (author)

The aluminosilicate zeolite ZSM-43 (where ZSM = Zeolite Socony Mobil) was first synthesized more than 3 decades ago, but its chemical structure remained unsolved because of its poor crystallinity and small crystal size. Here we present optimization of the ZSM-43 synthesis using a high-throughput approach and subsequent structure determination by the combination of electron crystallographic methods and powder X-ray diffraction. The synthesis required the use of a combination of both inorganic (Cs+ and K+) and organic (choline) structure-directing agents. High-throughput synthesis enabled a screening of the synthesis conditions, which made it possible to optimize the synthesis, despite its complexity, in order to obtain a material with significantly improved crystallinity. When both rotation electron diffraction and high resolution transmission electron microscopy imaging techniques are applied, the structure of ZSM-43 could be determined. The structure of ZSM-43 is a new zeolite framework type and possesses a unique two-dimensional channel system limited by 8-ring channels ZSM-43 is stable upon calcination, and sorption measurements show that the material is suitable for adsorption of carbon dioxide as well as methane.

Su, JieStockholms universitet,Institutionen för material- och miljökemi (MMK)(Swepub:su)jsu (author)
Yun, YifengStockholms universitet,Institutionen för material- och miljökemi (MMK) (author)
Zou, XiaodongStockholms universitet,Institutionen för material- och miljökemi (MMK)(Swepub:su)xzou (author)
Afeworki, Mobae (author)
Weston, Simon C. (author)
Vroman, Hilda B. (author)
Lonergan, William W. (author)
Strohmaier, Karl G. (author)
Stockholms universitetInstitutionen för material- och miljökemi (MMK) (creator_code:org_t)

In:Inorganic Chemistry: American Chemical Society (ACS)56:15, s. 8856-88640020-16691520-510X

By the author/editor: Willhammar, Tom; Su, Jie; Yun, Yifeng; Zou, Xiaodong; Afeworki, Mobae; Weston, Simon C.; show more...; Vroman, Hilda B.; Lonergan, Willia ...; Strohmaier, Karl ...; show less...

About the subject

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.