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Synthesis and activation for catalysis of Fe-SAPO-34 prepared using iron polyamine complexes as structure directing agents
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dc.contributor.author | Turrina, Alessandro | |
dc.contributor.author | Dugulan, A. Iulian | |
dc.contributor.author | Collier, Jillian | |
dc.contributor.author | Walton, Richard I. | |
dc.contributor.author | Casci, John L. | |
dc.contributor.author | Wright, Paul | |
dc.date.accessioned | 2018-08-28T23:33:44Z | |
dc.date.available | 2018-08-28T23:33:44Z | |
dc.date.issued | 2017-08-29 | |
dc.identifier | 250971354 | |
dc.identifier | d339b17b-e593-4c89-b9d6-e0c6ef28cfae | |
dc.identifier | 85030660022 | |
dc.identifier | 000413190800013 | |
dc.identifier.citation | Turrina , A , Dugulan , A I , Collier , J , Walton , R I , Casci , J L & Wright , P 2017 , ' Synthesis and activation for catalysis of Fe-SAPO-34 prepared using iron polyamine complexes as structure directing agents ' , Catalysis Science & Technology , vol. 7 , no. 19 , pp. 4366-4374 . https://doi.org/10.1039/C7CY01269A | en |
dc.identifier.issn | 2044-4753 | |
dc.identifier.other | ORCID: /0000-0002-4243-9957/work/62668274 | |
dc.identifier.uri | https://hdl.handle.net/10023/15901 | |
dc.description | This work was supported by Johnson Matthey PLC, UK. Solid-state NMR spectra were obtained at the EPSRC UK National Solid-state NMR Service at Durham. | en |
dc.description.abstract | The use of transition metal cations complexed by polyamines as structure directing agents (SDAs) for silicoaluminophosphate (SAPO) zeotypes provides a route, via removal of the organic by calcination, to microporous solids with well-distributed, catalytically-active extra-framework cations and avoids the need for post-synthesis aqueous cation exchange. Iron(II) complexed with tetraethylenepentamine (TEPA) is found to be an effective SDA for SAPO- 34, giving as-prepared solids where Fe2+-TEPA complexes reside within the cha cages, as indicated by Mössbauer, optical and X-ray absorption near edge spectroscopies. By contrast, when non-coordinating tetraethylammonium ions are used as the SDAs in Fe-SAPO-34 preparations, iron is included as octahedral Fe3+ within the framework. The complex- containing Fe-SAPO-34(TEPA) materials give a characteristic visible absorption band at 550 nm (and purple colouration) when dried in air that is attributed to oxygen chemisorption. Some other Fe2+ polyamine complexes (diethylenetriamine, triethylenetetramine and pentaethylenehexamine) show similar behaviour. After calcination in flowing oxygen at 550 °C, ‘one-pot’ Fe(TEPA) materials possess Fe3+ cations and a characteristic UV-visible spectrum: they also show appreciable activity in the selective catalytic reduction of NO with NH3. | |
dc.format.extent | 1455589 | |
dc.format.extent | 711423 | |
dc.language.iso | eng | |
dc.relation.ispartof | Catalysis Science & Technology | en |
dc.subject | QD Chemistry | en |
dc.subject | DAS | en |
dc.subject.lcc | QD | en |
dc.title | Synthesis and activation for catalysis of Fe-SAPO-34 prepared using iron polyamine complexes as structure directing agents | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Chemistry | en |
dc.contributor.institution | University of St Andrews. EaSTCHEM | en |
dc.identifier.doi | 10.1039/C7CY01269A | |
dc.description.status | Peer reviewed | en |
dc.date.embargoedUntil | 2018-08-29 | |
dc.identifier.url | http://www.rsc.org/suppdata/c7/cy/c7cy01269a/c7cy01269a1.pdf | en |
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