Identification of a unique VUV photoabsorption band of carbonic acid for its identification in radiation and thermally processed water-carbon dioxide ices
Carbonic acid was synthesized within an ice containingwater and carbon dioxide by irradiation of similar to 9 eV photons. Vacuum UltraViolet (VUV)/UltraViolet (UV) photoabsorption spectra of the irradiated ice revealed absorption features from carbon dioxide, ozone, water, carbon monoxide and oxygen...
Published in: | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy |
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Online Access: | http://hdl.handle.net/11536/152320 https://doi.org/10.1016/j.saa.2019.02.037 |
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ftnctuniv:oai:ir.nctu.edu.tw:11536/152320 2023-05-15T15:51:58+02:00 Identification of a unique VUV photoabsorption band of carbonic acid for its identification in radiation and thermally processed water-carbon dioxide ices Pavithraa, S. Lo, J-, I Cheng, B-M Sekhar, B. N. Raja Mason, N. J. Sivaraman, B. 應用化學系 Department of Applied Chemistry 2019-05-15 http://hdl.handle.net/11536/152320 https://doi.org/10.1016/j.saa.2019.02.037 en_US eng 1386-1425 http://dx.doi.org/10.1016/j.saa.2019.02.037 http://hdl.handle.net/11536/152320 doi:10.1016/j.saa.2019.02.037 SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY WOS:000471316200015 Astrochemistry Methods Laboratory Solid state Techniques Spectroscopic Article 2019 ftnctuniv https://doi.org/10.1016/j.saa.2019.02.037 2019-08-09T00:07:09Z Carbonic acid was synthesized within an ice containingwater and carbon dioxide by irradiation of similar to 9 eV photons. Vacuum UltraViolet (VUV)/UltraViolet (UV) photoabsorption spectra of the irradiated ice revealed absorption features from carbon dioxide, ozone, water, carbon monoxide and oxygen in addition to a band peaking at similar to 200 nm which is identified to be characteristic of carbonic acid. After thermal processing of the irradiated ice leading to desorption of the lower volatile ices, a pure carbonic acid spectrum is identified starting from 170 K until sublimation above 230 K. Therefore the similar to 200 nm band in the VUV region corresponding to carbonic acid is proposed to be a unique identifier in mixed ices, rich in water and carbon dioxide typically encountered on planetary and satellite surfaces. (C) 2019 Elsevier B.V. All rights reserved. Article in Journal/Newspaper Carbonic acid National Chiao Tung University: NCTU Institutional Repository Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 215 130 132 |
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Open Polar |
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National Chiao Tung University: NCTU Institutional Repository |
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ftnctuniv |
language |
English |
topic |
Astrochemistry Methods Laboratory Solid state Techniques Spectroscopic |
spellingShingle |
Astrochemistry Methods Laboratory Solid state Techniques Spectroscopic Pavithraa, S. Lo, J-, I Cheng, B-M Sekhar, B. N. Raja Mason, N. J. Sivaraman, B. Identification of a unique VUV photoabsorption band of carbonic acid for its identification in radiation and thermally processed water-carbon dioxide ices |
topic_facet |
Astrochemistry Methods Laboratory Solid state Techniques Spectroscopic |
description |
Carbonic acid was synthesized within an ice containingwater and carbon dioxide by irradiation of similar to 9 eV photons. Vacuum UltraViolet (VUV)/UltraViolet (UV) photoabsorption spectra of the irradiated ice revealed absorption features from carbon dioxide, ozone, water, carbon monoxide and oxygen in addition to a band peaking at similar to 200 nm which is identified to be characteristic of carbonic acid. After thermal processing of the irradiated ice leading to desorption of the lower volatile ices, a pure carbonic acid spectrum is identified starting from 170 K until sublimation above 230 K. Therefore the similar to 200 nm band in the VUV region corresponding to carbonic acid is proposed to be a unique identifier in mixed ices, rich in water and carbon dioxide typically encountered on planetary and satellite surfaces. (C) 2019 Elsevier B.V. All rights reserved. |
author2 |
應用化學系 Department of Applied Chemistry |
format |
Article in Journal/Newspaper |
author |
Pavithraa, S. Lo, J-, I Cheng, B-M Sekhar, B. N. Raja Mason, N. J. Sivaraman, B. |
author_facet |
Pavithraa, S. Lo, J-, I Cheng, B-M Sekhar, B. N. Raja Mason, N. J. Sivaraman, B. |
author_sort |
Pavithraa, S. |
title |
Identification of a unique VUV photoabsorption band of carbonic acid for its identification in radiation and thermally processed water-carbon dioxide ices |
title_short |
Identification of a unique VUV photoabsorption band of carbonic acid for its identification in radiation and thermally processed water-carbon dioxide ices |
title_full |
Identification of a unique VUV photoabsorption band of carbonic acid for its identification in radiation and thermally processed water-carbon dioxide ices |
title_fullStr |
Identification of a unique VUV photoabsorption band of carbonic acid for its identification in radiation and thermally processed water-carbon dioxide ices |
title_full_unstemmed |
Identification of a unique VUV photoabsorption band of carbonic acid for its identification in radiation and thermally processed water-carbon dioxide ices |
title_sort |
identification of a unique vuv photoabsorption band of carbonic acid for its identification in radiation and thermally processed water-carbon dioxide ices |
publishDate |
2019 |
url |
http://hdl.handle.net/11536/152320 https://doi.org/10.1016/j.saa.2019.02.037 |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_relation |
1386-1425 http://dx.doi.org/10.1016/j.saa.2019.02.037 http://hdl.handle.net/11536/152320 doi:10.1016/j.saa.2019.02.037 SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY WOS:000471316200015 |
op_doi |
https://doi.org/10.1016/j.saa.2019.02.037 |
container_title |
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy |
container_volume |
215 |
container_start_page |
130 |
op_container_end_page |
132 |
_version_ |
1766387317022392320 |