Rosu-Finsen, A;
Salzmann, CG;
(2022)
Is pressure the key to hydrogen ordering ice IV?
Chemical Physics Letters
, 789
, Article 139325. 10.1016/j.cplett.2021.139325.
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Abstract
Hydrochloric-acid-doped ice IV prepared at increasing pressures leads to growing endotherms observed with ambient pressure calorimetry. The endotherms are irreversible suggesting three possible scenarios for their origins: (1) a weakly hydrogen-ordered counterpart of ice IV is formed, but ambient pressure favours hydrogen-disordered ice IV, (2) increased pressure creates increased strain within the crystal structure of the ice, which is released upon heating yielding the endotherms or (3) the endotherms are kinetic overshoot effects related to the underlying orientational glass transition. X-ray diffraction cannot distinguish between these scenarios. Recent controversies regarding the preparation of ice IV are also discussed.
| Type: | Article |
|---|---|
| Title: | Is pressure the key to hydrogen ordering ice IV? |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.cplett.2021.139325 |
| Publisher version: | https://doi.org/10.1016/j.cplett.2021.139325 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Ice, Doping, Pressure, Hydrogen ordering, Calorimetry |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10142511 |
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