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A Layered Mixed Zirconium Phosphate/Phosphonate with Exposed Carboxylic and Phosphonic Groups: X-ray Powder Structure and Proton Conductivity Properties

A. Donnadio, M. Nocchetti, F. Costantino, M. Taddei, M. Casciola, F. da Silva Lisboa, R. Vivani, Marco Taddei Orcid Logo

Inorganic Chemistry, Volume: 53, Issue: 24, Pages: 13220 - 13226

Swansea University Author: Marco Taddei Orcid Logo

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DOI (Published version): 10.1021/ic502473w

Abstract

A novel mixed zirconium phosphate/phosphonate based on glyphosine, of formula Zr2(PO4)H5(L)2·H2O [L = (O3PCH2)2NCH2COO], was synthesized in mild conditions. The compound has a layered structure that was solved ab initio from laboratory PXRD data. It crystallizes in the monoclinic C2/c space group wi...

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Published in: Inorganic Chemistry
ISSN: 0020-1669 1520-510X
Published: American Chemical Society (ACS) 2014
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URI: https://cronfa.swan.ac.uk/Record/cronfa32750
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spelling 2017-04-03T11:57:18.4142900 v2 32750 2017-03-29 A Layered Mixed Zirconium Phosphate/Phosphonate with Exposed Carboxylic and Phosphonic Groups: X-ray Powder Structure and Proton Conductivity Properties 5cffd1038508554d8596dee8b4e51052 0000-0003-2805-6375 Marco Taddei Marco Taddei true false 2017-03-29 EEN A novel mixed zirconium phosphate/phosphonate based on glyphosine, of formula Zr2(PO4)H5(L)2·H2O [L = (O3PCH2)2NCH2COO], was synthesized in mild conditions. The compound has a layered structure that was solved ab initio from laboratory PXRD data. It crystallizes in the monoclinic C2/c space group with the following cell parameters: a = 29.925(3), b = 8.4225(5), c = 9.0985(4) Å, and β = 98.474(6)°. Phosphate groups are placed inside the sheets and connect the zirconium atoms in a tetradentate fashion, while uncoordinated carboxylate and P–OH phosphonate groups are exposed on the layer surface. Due to the presence of these acidic groups, the compound showed remarkable proton conductivity properties, which were studied in a wide range of temperature and relative humidity (RH). The conductivity is strongly dependent on RH and reaches 1 × 10–3 S cm–1 at 140 °C and 95% RH. At this RH, the activation energy of conduction is 0.15 eV in the temperature range 80–140 °C. The similarities of this structure with related structures already reported in the literature were also discussed. Journal Article Inorganic Chemistry 53 24 13220 13226 American Chemical Society (ACS) 0020-1669 1520-510X 31 12 2014 2014-12-31 10.1021/ic502473w COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University 2017-04-03T11:57:18.4142900 2017-03-29T09:52:43.7405795 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised A. Donnadio 1 M. Nocchetti 2 F. Costantino 3 M. Taddei 4 M. Casciola 5 F. da Silva Lisboa 6 R. Vivani 7 Marco Taddei 0000-0003-2805-6375 8
title A Layered Mixed Zirconium Phosphate/Phosphonate with Exposed Carboxylic and Phosphonic Groups: X-ray Powder Structure and Proton Conductivity Properties
spellingShingle A Layered Mixed Zirconium Phosphate/Phosphonate with Exposed Carboxylic and Phosphonic Groups: X-ray Powder Structure and Proton Conductivity Properties
Marco Taddei
title_short A Layered Mixed Zirconium Phosphate/Phosphonate with Exposed Carboxylic and Phosphonic Groups: X-ray Powder Structure and Proton Conductivity Properties
title_full A Layered Mixed Zirconium Phosphate/Phosphonate with Exposed Carboxylic and Phosphonic Groups: X-ray Powder Structure and Proton Conductivity Properties
title_fullStr A Layered Mixed Zirconium Phosphate/Phosphonate with Exposed Carboxylic and Phosphonic Groups: X-ray Powder Structure and Proton Conductivity Properties
title_full_unstemmed A Layered Mixed Zirconium Phosphate/Phosphonate with Exposed Carboxylic and Phosphonic Groups: X-ray Powder Structure and Proton Conductivity Properties
title_sort A Layered Mixed Zirconium Phosphate/Phosphonate with Exposed Carboxylic and Phosphonic Groups: X-ray Powder Structure and Proton Conductivity Properties
author_id_str_mv 5cffd1038508554d8596dee8b4e51052
author_id_fullname_str_mv 5cffd1038508554d8596dee8b4e51052_***_Marco Taddei
author Marco Taddei
author2 A. Donnadio
M. Nocchetti
F. Costantino
M. Taddei
M. Casciola
F. da Silva Lisboa
R. Vivani
Marco Taddei
format Journal article
container_title Inorganic Chemistry
container_volume 53
container_issue 24
container_start_page 13220
publishDate 2014
institution Swansea University
issn 0020-1669
1520-510X
doi_str_mv 10.1021/ic502473w
publisher American Chemical Society (ACS)
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 0
active_str 0
description A novel mixed zirconium phosphate/phosphonate based on glyphosine, of formula Zr2(PO4)H5(L)2·H2O [L = (O3PCH2)2NCH2COO], was synthesized in mild conditions. The compound has a layered structure that was solved ab initio from laboratory PXRD data. It crystallizes in the monoclinic C2/c space group with the following cell parameters: a = 29.925(3), b = 8.4225(5), c = 9.0985(4) Å, and β = 98.474(6)°. Phosphate groups are placed inside the sheets and connect the zirconium atoms in a tetradentate fashion, while uncoordinated carboxylate and P–OH phosphonate groups are exposed on the layer surface. Due to the presence of these acidic groups, the compound showed remarkable proton conductivity properties, which were studied in a wide range of temperature and relative humidity (RH). The conductivity is strongly dependent on RH and reaches 1 × 10–3 S cm–1 at 140 °C and 95% RH. At this RH, the activation energy of conduction is 0.15 eV in the temperature range 80–140 °C. The similarities of this structure with related structures already reported in the literature were also discussed.
published_date 2014-12-31T03:40:14Z
_version_ 1763751823446900736
score 11.012678

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