Skip to content

Research at St Andrews

Synthesis and activation for catalysis of Fe-SAPO-34 prepared using iron polyamine complexes as structure directing agents

Research output: Contribution to journalArticle

DOI

Open Access permissions

Open

Author(s)

Alessandro Turrina, A. Iulian Dugulan, Jillian Collier, Richard I. Walton, John L. Casci, Paul Wright

School/Research organisations

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.
Close

Details

Original languageEnglish
Pages (from-to)4366-4374
JournalCatalysis Science & Technology
Volume7
Issue number19
Early online date29 Aug 2017
DOIs
Publication statusE-pub ahead of print - 29 Aug 2017

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. Improvements to the production of ZIF-94; a case study in MOF scale-up

    Johnson, T., Łozińska, M. M., Orsi, A. F., Wright, P. A., Hindocha, S. & Poulston, S., 21 Oct 2019, In : Green Chemistry. 21, 20, p. 5665-5670 6 p.

    Research output: Contribution to journalArticle

  2. Triggered gate opening and breathing effects during selective CO2 adsorption by merlinoite zeolite

    Georgieva, V. M., Bruce, E. L., Verbraeken, M., Scott, A., Casteel, W., Brandani, S. & Wright, P. A., 2 Aug 2019, In : Journal of the American Chemical Society. Article ASAP

    Research output: Contribution to journalArticle

  3. Elementary steps in the formation of hydrocarbons from surface methoxy groups in HZSM-5 seen by synchrotron infrared microspectroscopy

    Minova, I., Matam, S., Greenaway, A., Catlow, R., Frogley, M., Cinque, G., Wright, P. A. & Howe, R., 17 Jun 2019, In : ACS Catalysis. 9, p. 6564-6570 7 p.

    Research output: Contribution to journalArticle

  4. New directions in metal phosphonate and phosphinate chemistry

    Shearan, S. J. I., Stock, N., Emmerling, F., Demel, J., Wright, P. A., Demadis, K. D., Vassaki, M., Costantino, F., Vivani, R., Sallard, S., Ruiz Salcedo, I., Cabeza, A. & Taddei, M., 24 May 2019, In : Crystals. 9, 5, 270.

    Research output: Contribution to journalArticle

  5. STA-27, a porous Lewis acidic scandium MOF with an unexpected topology type prepared with 2,3,5,6-tetrakis(4-carboxyphenyl)pyrazine

    Prasad, R., Seidner, S., Cordes, D. B., Lozinska, M., Dawson, D., Thompson, M., Düren, T., Chakarova, K., Mihaylov, M., Hadjiivanov, K., Hoffmann, F., Slawin, A. M. Z., Ashbrook, S. E., Clarke, M. & Wright, P., 14 Mar 2019, In : Journal of Materials Chemistry. 7, 10, p. 5685-5701

    Research output: Contribution to journalArticle

Related by journal

  1. Effect of oxygen coordination environment of Ca-Mn oxides on catalytic performance of Pd supported catalysts for aerobic oxidation of 5-hydroxymethyl-2-furfural

    Yang, J., Yu, H., Wang, Y., Qi, F., Liu, H., Lou, L-L., Yu, K., Zhou, W. & Liu, S., 7 Dec 2019, In : Catalysis Science & Technology. 9, 23, p. 6659-6668

    Research output: Contribution to journalArticle

  2. Photoredox catalysts based on Earth-abundant metal complexes

    Hockin, B., Li, C., Robertson, N. & Zysman-Colman, E., 21 Feb 2019, In : Catalysis Science & Technology. 9, 4, p. 889-915

    Research output: Contribution to journalArticle

  3. Less hindered ligands give improved catalysts for the nickel catalysed Grignard cross-coupling of aromatic ethers

    Harkness, G. J. & Clarke, M. L., 7 Jan 2018, In : Catalysis Science & Technology. 8, 1, p. 328-334

    Research output: Contribution to journalArticle

  4. M3+O(-Mn4+)2 clusters in doped MnOx catalysts as promoted active sites for aerobic oxidation of 5-hydroxymethylfurfural

    Yu, K., Liu, Y., Lei, D., Jiang, Y., Wang, Y., Feng, Y., Lou, L-L., Liu, S. & Zhou, W., 7 May 2018, In : Catalysis Science & Technology. 8, 9, p. 2299-2303

    Research output: Contribution to journalReview article

ID: 250971354

Top