New porous water ice metastable at atmospheric pressure obtained by emptying a hydrogen-filled ice
The properties of some forms of water ice reserve still intriguing surprises. Besides the several stable or metastable phases of pure ice, solid mixtures of water with gases are precursors of other ices, as in some cases they may be emptied, leaving a metastable hydrogen-bound water structure. We pr...
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| Format: | Online |
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Nature Publishing Group
2016
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| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5103070/ |
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pubmed-51030702016-11-18 New porous water ice metastable at atmospheric pressure obtained by emptying a hydrogen-filled ice del Rosso, Leonardo Celli, Milva Ulivi, Lorenzo Article The properties of some forms of water ice reserve still intriguing surprises. Besides the several stable or metastable phases of pure ice, solid mixtures of water with gases are precursors of other ices, as in some cases they may be emptied, leaving a metastable hydrogen-bound water structure. We present here the first characterization of a new form of ice, obtained from the crystalline solid compound of water and molecular hydrogen called C0-structure filled ice. By means of Raman spectroscopy, we measure the hydrogen release at different temperatures and succeed in rapidly removing all the hydrogen molecules, obtaining a new form of ice (ice XVII). Its structure is determined by means of neutron diffraction measurements. Of paramount interest is that the emptied crystal can adsorb again hydrogen and release it repeatedly, showing a temperature-dependent hysteresis. Nature Publishing Group 2016-11-07 /pmc/articles/PMC5103070/ /pubmed/27819265 http://dx.doi.org/10.1038/ncomms13394 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| repository_type |
Open Access Journal |
| institution_category |
Foreign Institution |
| institution |
US National Center for Biotechnology Information |
| building |
NCBI PubMed |
| collection |
Online Access |
| language |
English |
| format |
Online |
| author |
del Rosso, Leonardo Celli, Milva Ulivi, Lorenzo |
| spellingShingle |
del Rosso, Leonardo Celli, Milva Ulivi, Lorenzo New porous water ice metastable at atmospheric pressure obtained by emptying a hydrogen-filled ice |
| author_facet |
del Rosso, Leonardo Celli, Milva Ulivi, Lorenzo |
| author_sort |
del Rosso, Leonardo |
| title |
New porous water ice metastable at atmospheric pressure obtained by emptying a hydrogen-filled ice |
| title_short |
New porous water ice metastable at atmospheric pressure obtained by emptying a hydrogen-filled ice |
| title_full |
New porous water ice metastable at atmospheric pressure obtained by emptying a hydrogen-filled ice |
| title_fullStr |
New porous water ice metastable at atmospheric pressure obtained by emptying a hydrogen-filled ice |
| title_full_unstemmed |
New porous water ice metastable at atmospheric pressure obtained by emptying a hydrogen-filled ice |
| title_sort |
new porous water ice metastable at atmospheric pressure obtained by emptying a hydrogen-filled ice |
| description |
The properties of some forms of water ice reserve still intriguing surprises. Besides the several stable or metastable phases of pure ice, solid mixtures of water with gases are precursors of other ices, as in some cases they may be emptied, leaving a metastable hydrogen-bound water structure. We present here the first characterization of a new form of ice, obtained from the crystalline solid compound of water and molecular hydrogen called C0-structure filled ice. By means of Raman spectroscopy, we measure the hydrogen release at different temperatures and succeed in rapidly removing all the hydrogen molecules, obtaining a new form of ice (ice XVII). Its structure is determined by means of neutron diffraction measurements. Of paramount interest is that the emptied crystal can adsorb again hydrogen and release it repeatedly, showing a temperature-dependent hysteresis. |
| publisher |
Nature Publishing Group |
| publishDate |
2016 |
| url |
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5103070/ |
| _version_ |
1613720627725729792 |