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  An Amorphous Phase of Zinc and Silicon at Composition Zn2Si5(:H, OH)

Feng, X.-J., Böhme, B., Bobnar, M., Simon, P., Carrillo-Cabrera, W., Burkhardt, U., et al. (2017). An Amorphous Phase of Zinc and Silicon at Composition Zn2Si5(:H, OH). Zeitschrift für anorganische und allgemeine Chemie, 643, 106-113. doi:10.1002/zaac.201600340.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-09EC-D Version Permalink: http://hdl.handle.net/21.11116/0000-0001-0169-8
Genre: Journal Article

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 Creators:
Feng, Xian-Juan1, Author              
Böhme, Bodo2, Author              
Bobnar, Matej1, Author              
Simon, Paul3, Author              
Carrillo-Cabrera, Wilder1, Author              
Burkhardt, Ulrich4, Author              
Schmidt, Marcus5, Author              
Schwarz, Ulrich6, Author              
Baitinger, Michael7, Author              
Strassner, Thomas8, Author
Grin, Yuri9, Author              
Affiliations:
1Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863405              
2Bodo Böhme, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863408              
3Paul Simon, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863418              
4Ulrich Burkhardt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863422              
5Marcus Schmidt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863415              
6Ulrich Schwarz, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863423              
7Michael Baitinger, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863416              
8External Organizations, ou_persistent22              
9Juri Grin, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863413              

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 Abstract: An amorphous phase at composition Zn2Si5(:H,OH) was prepared by oxidation of the precursor phase Li2ZnSi at 80 degrees C in the ionic liquid of n-dodecyltrimethylammonium chloride (DTAC) and AlCl3 in 1:1 molar ratio, followed by removal of elemental zinc by dilute aqueous HCl. The product was structurally amorphous according to HRTEM, XRPD, and Raman spectroscopy. Zn2Si5(:H,OH) forms layers embedded in a matrix of a silica by-product. On annealing at 150 degrees C, amorphous Zn2Si5(:H,OH) decomposed into crystalline Zn and -Si. The decomposition comes along with the release of H-2 revealed by TG-MS studies. IR and solid-state NMR spectroscopy revealed that the Zn2Si5 bulk is terminated by Si-OH and Si-H groups. The absence of Knight shift in the Si-29 NMR signal assigned to Zn2Si5(:H,OH) suggests semiconducting behavior.

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Language(s): eng - English
 Dates: 2017-01-162017-01-16
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: ISI: 000394225100015
DOI: 10.1002/zaac.201600340
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Title: Zeitschrift für anorganische und allgemeine Chemie
  Other : Journal of Inorganic and General Chemistry
  Other : J. Inorg. Gen Chem.
  Abbreviation : Z. Anorg. Allg. Chem.
Source Genre: Journal
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Publ. Info: Leipzig, Weinheim : Verlag Johann Ambrosius Barth / Wiley-VCH
Pages: - Volume / Issue: 643 Sequence Number: - Start / End Page: 106 - 113 Identifier: Other: 1521-3749
ISSN: 0044-2313
CoNE: /journals/resource/954925453895