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High-Throughput Syn...
High-Throughput Synthesis and Structure of Zeolite ZSM-43 with Two-Directional 8-Ring Channels
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- Willhammar, Tom (författare)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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- Su, Jie (författare)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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- Yun, Yifeng (författare)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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- Zou, Xiaodong (författare)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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Afeworki, Mobae (författare)
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Weston, Simon C. (författare)
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Vroman, Hilda B. (författare)
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Lonergan, William W. (författare)
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Strohmaier, Karl G. (författare)
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(creator_code:org_t)
- 2017-07-20
- 2017
- Engelska.
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Ingår i: Inorganic Chemistry. - : American Chemical Society (ACS). - 0020-1669 .- 1520-510X. ; 56:15, s. 8856-8864
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
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