Exploring the Role of Cluster Formation in UiO Family Hf Metal–Organic Frameworks with in Situ X-ray Pair Distribution Function Analysis

Autor: Clare P. Grey, Matthew J. Cliffe, Francesca C. N. Firth, Joshua M Stratford, Michael W. Gaultois, Dean S. Keeble, Yue Wu

Publikováno v: Journal of the American Chemical Society. 143:19668-19683

The structures of Zr and Hf metal-organic frameworks (MOFs) are very sensitive to small changes in synthetic conditions. One key difference affecting the structure of UiO MOF phases is the shape and nuclearity of Zr or Hf metal clusters acting as nod

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b9331d74f41f189aac77eebdacfa3c27
https://doi.org/10.1021/jacs.1c06990

Thermally-induced local structural transformations in Na0.5Bi0.5TiO3-KNbO3 ceramics

Autor: Zhilun Lu, David A. Hall, Ge Wang, Dean S. Keeble, Anton Goetzee-Barral

Publikováno v: Wang, G, Goetzee-Barral, A, Lu, Z, Keeble, D & Hall, D 2021, ' Thermally-induced local structural transformations in Na0.5Bi0.5TiO3-KNbO3 ceramics ', Journal of the American Ceramic Society . https://doi.org/10.1016/j.jeurceramsoc.2021.01.040

The local symmetry of (1-x)Na0.5Bi0.5TiO3-xKNbO3 (NBT-xKN, x=0.01-0.07) ceramics was thoroughly examined using high-energy synchrotron x-ray scattering and analysed using the Pair-Distribution Function (PDF) method. At room temperature, the structure

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80a8721ee58940becd7e3aaebf5b6183
https://doi.org/10.1016/j.jeurceramsoc.2021.01.040

Glassy behaviour of mechanically amorphised ZIF-62 isomorphs

Autor: Dean S. Keeble, Alice M. Bumstead, David A. Keen, Adam F. Sapnik, Michael F. Thorne, Lauren N. McHugh, Celia Castillo-Blas, Thomas D. Bennett, Phillip A. Chater, Maria Diaz Lopez

Publikováno v: Chemical Communications. 57:9272-9275

Zeolitic imidazolate frameworks (ZIFs) can be melt-quenched to form glasses. Here, we present an alternative route to glassy ZIFs via mechanically induced amorphisation. This approach allows various glassy ZIFs to be produced in under 30 minutes at r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bd3a1aa1f9e5a32964407160dad3760
https://doi.org/10.1039/d1cc03469c

A new route to porous metal–organic framework crystal–glass composites

Autor: Adam F. Sapnik, Lauren N. McHugh, Paul A. Midgley, Philip A. Chater, Shichun Li, Shuwen Yu, Thomas D. Bennett, Duncan N. Johnstone, Christopher W. Ashling, Dean S. Keeble, David A. Keen, Sean M. Collins

Publikováno v: Chemical Science. 11:9910-9918

Metal–organic framework crystal–glass composite (MOF CGC) materials consist of a crystalline MOF embedded within a MOF–glass matrix. In this work, a new synthetic route to these materials is demonstrated through the preparation of two ZIF-62 gl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4a6bdc0fb325df6d4ee7ebdec3d25a98
https://doi.org/10.1039/d0sc04008h

Investigating pair distribution function use in analysis of nanocrystalline hydroxyapatite and carbonate-substituted hydroxyapatite

Autor: Emily L. Arnold, Dean S. Keeble, J. P. O. Evans, Charlene Greenwood, Keith D. Rogers

Publikováno v: Acta crystallographica. Section C, Structural chemistry. 78(Pt 5)

Hy­droxy­apatite (HA) is a com­plex material, which is often nanocrystalline when found within a biological setting. This work has directly com­pared the structural characteristics derived from data collected using a conventional laboratory-based

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f243f750952c202725c571bf5e65507f
https://pubmed.ncbi.nlm.nih.gov/35510432