{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Du P"],"funding":["National Natural Science Foundation of China (National Science Foundation of China)"],"pagination":["1427"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC8930971"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["13(1)"],"pubmed_abstract":["Molecular sieving membranes with uniform pore size are highly desired for carbon dioxide separation. All-silica zeolite membranes feature well-defined micropores, but the size-exclusion effect is significantly compromised by the non-selective macro-pores generated during detemplation. Here we propose a template modulated crystal transition (TMCT) approach to tune the flexibility of Decadodecasil 3 R (DD3R) zeolite to prepare ultra-selective membranes for CO<sub>2</sub>/CH<sub>4</sub> separation. An instantaneous overheating is applied to synchronize the template decomposition with the structure relaxation. The organic template molecules are transitionally converted to tight carbon species by the one-minute overheating at 700 °C, which are facilely burnt out by a following moderate thermal treatment. The resulting membranes exhibit CO<sub>2</sub>/CH<sub>4</sub> selectivity of 157~1,172 and CO<sub>2</sub> permeance of (890~1,540) × 10<sup>-10 </sup>mol m<sup>-2</sup> s<sup>-1</sup> Pa<sup>-1</sup>. The CO<sub>2</sub> flux and CO<sub>2</sub>/CH<sub>4</sub> mixture selectivity reach 3.6 Nm<sup>3</sup> m<sup>-2</sup> h<sup>-1</sup> and 43 even at feed pressure up to 31 bar. Such strategy could pave the way of all-silica zeolite membranes to practical applications."],"journal":["Nature communications"],"pubmed_title":["Control of zeolite framework flexibility for ultra-selective carbon dioxide separation."],"pmcid":["PMC8930971"],"funding_grant_id":["22008111","22035002","21908097"],"pubmed_authors":["Du P","Jin W","Gu X","Zhang Y","Hong Z","Canossa S","Wang X","Nenert G"],"additional_accession":[]},"is_claimable":false,"name":"Control of zeolite framework flexibility for ultra-selective carbon dioxide separation.","description":"Molecular sieving membranes with uniform pore size are highly desired for carbon dioxide separation. All-silica zeolite membranes feature well-defined micropores, but the size-exclusion effect is significantly compromised by the non-selective macro-pores generated during detemplation. Here we propose a template modulated crystal transition (TMCT) approach to tune the flexibility of Decadodecasil 3 R (DD3R) zeolite to prepare ultra-selective membranes for CO<sub>2</sub>/CH<sub>4</sub> separation. An instantaneous overheating is applied to synchronize the template decomposition with the structure relaxation. The organic template molecules are transitionally converted to tight carbon species by the one-minute overheating at 700 °C, which are facilely burnt out by a following moderate thermal treatment. The resulting membranes exhibit CO<sub>2</sub>/CH<sub>4</sub> selectivity of 157~1,172 and CO<sub>2</sub> permeance of (890~1,540) × 10<sup>-10 </sup>mol m<sup>-2</sup> s<sup>-1</sup> Pa<sup>-1</sup>. The CO<sub>2</sub> flux and CO<sub>2</sub>/CH<sub>4</sub> mixture selectivity reach 3.6 Nm<sup>3</sup> m<sup>-2</sup> h<sup>-1</sup> and 43 even at feed pressure up to 31 bar. Such strategy could pave the way of all-silica zeolite membranes to practical applications.","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Mar","modification":"2025-04-19T16:19:58.534Z","creation":"2025-04-19T16:19:58.534Z"},"accession":"S-EPMC8930971","cross_references":{"pubmed":["35301325"],"doi":["10.1038/s41467-022-29126-6"]}}