PHOTOLYSIS OF ASTROPHYSICAL WATER ICE BY SOFT X-RAYS AND THE PRODUCTION OF H2O2 DURING THE PHASES OF IRRADIATION AND HEATING

Detalhes bibliográficos
Autor(a) principal: Oliveira, Sergio Pilling Guapyassu de
Data de Publicação: 2023
Outros Autores: da Silva, Rita de Cassia
Tipo de documento: Artigo
Idioma: por
Título da fonte: Revista UniVap (online)
Texto Completo: https://revista.univap.br/index.php/revistaunivap/article/view/4386
Resumo: Astrophysical water-rich ices are always exposed to ionizing radiation in space, as well as, are exposed to eventual temperature changes. In the laboratory, the studies of such ices allow us to understand their behavior and chemical changes, allowing also the quantification of important physicochemical parameters of the ice. In the present work, a sample of water ice at 12 K was irradiated by soft X-rays in the SGM beamline of LNLS/CNPEM until reaching chemical equilibrium, and then it was heated up to 220 K. Using infrared spectroscopy (IR), we mapped the chemical evolution of the sample and quantified the production of its main product, the H2O2 molecule. The study has implications for the chemistry of star-forming regions as well as cold regions of the solar system.
id UNIVAP-1_5013a73ddd6fb26799a33eeafd85914e
oai_identifier_str oai:ojs.biblioteca.univap.br:article/4386
network_acronym_str UNIVAP-1
network_name_str Revista UniVap (online)
repository_id_str
spelling PHOTOLYSIS OF ASTROPHYSICAL WATER ICE BY SOFT X-RAYS AND THE PRODUCTION OF H2O2 DURING THE PHASES OF IRRADIATION AND HEATINGFOTÓLISE DE GELO DE ÁGUA POR RAIOS-X MOLES E A PRODUÇÃO DE H2O2 DURANTE AS FASES DE IRRADIAÇÃO E AQUECIMENTOGelos astrofísicosH2OH2O2Espectroscopia IRFotóliseRaios-X molesAstroquímicaAstrophysical iceH2OH2O2IR spectroscopyPhotolysisSoft X-raysAstrophysical water-rich ices are always exposed to ionizing radiation in space, as well as, are exposed to eventual temperature changes. In the laboratory, the studies of such ices allow us to understand their behavior and chemical changes, allowing also the quantification of important physicochemical parameters of the ice. In the present work, a sample of water ice at 12 K was irradiated by soft X-rays in the SGM beamline of LNLS/CNPEM until reaching chemical equilibrium, and then it was heated up to 220 K. Using infrared spectroscopy (IR), we mapped the chemical evolution of the sample and quantified the production of its main product, the H2O2 molecule. The study has implications for the chemistry of star-forming regions as well as cold regions of the solar system.Gelos astrofísicos ricos em H2O (água) estão sempre expostos a radiações ionizantes no espaço, assim como a eventuais mudanças de temperatura. Seus estudos em laboratório permitem compreender seus comportamentos e mudanças químicas, além de permitir a quantificação de parâmetros físico-químicos importantes do próprio gelo. No presente trabalho, uma amostra de gelo de água a 12 K foi irradiada por raios-X moles na linha de luz SGM do LNLS/CNPEM até atingir o equilíbrio químico, e em seguida, foi aquecida até 220 K. Utilizando espectroscopia infravermelha (IR), mapeamos a evolução química da amostra e quantificamos a produção do seu principal produto, a molécula de H2O2. O estudo tem implicações na química das regiões de formação estelar, bem como em regiões frias do sistema solar.IBICT2023-03-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionTextoinfo:eu-repo/semantics/otherapplication/pdfhttps://revista.univap.br/index.php/revistaunivap/article/view/438610.18066/revistaunivap.v29i61.4386Revista Univap; Vol. 29 No. 61 (2023): Revista UnivapRevista Univap; v. 29 n. 61 (2023): Revista Univap2237-17531517-327510.18066/revistaunivap.v29i61reponame:Revista UniVap (online)instname:Universidade do Vale do Paraíba (Univap)instacron:UNIVAPporhttps://revista.univap.br/index.php/revistaunivap/article/view/4386/2215NationalNacionalCopyright (c) 2023 Revista Univaphttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessOliveira, Sergio Pilling Guapyassu deda Silva, Rita de Cassia2023-03-28T22:10:46Zoai:ojs.biblioteca.univap.br:article/4386Revistahttps://revista.univap.br/index.php/revistaunivapPRIhttps://revista.univap.br/index.php/revistaunivap/oairevista@univap.br2237-17532237-1753opendoar:2023-03-28T22:10:46Revista UniVap (online) - Universidade do Vale do Paraíba (Univap)false
dc.title.none.fl_str_mv PHOTOLYSIS OF ASTROPHYSICAL WATER ICE BY SOFT X-RAYS AND THE PRODUCTION OF H2O2 DURING THE PHASES OF IRRADIATION AND HEATING
FOTÓLISE DE GELO DE ÁGUA POR RAIOS-X MOLES E A PRODUÇÃO DE H2O2 DURANTE AS FASES DE IRRADIAÇÃO E AQUECIMENTO
title PHOTOLYSIS OF ASTROPHYSICAL WATER ICE BY SOFT X-RAYS AND THE PRODUCTION OF H2O2 DURING THE PHASES OF IRRADIATION AND HEATING
spellingShingle PHOTOLYSIS OF ASTROPHYSICAL WATER ICE BY SOFT X-RAYS AND THE PRODUCTION OF H2O2 DURING THE PHASES OF IRRADIATION AND HEATING
Oliveira, Sergio Pilling Guapyassu de
Gelos astrofísicos
H2O
H2O2
Espectroscopia IR
Fotólise
Raios-X moles
Astroquímica
Astrophysical ice
H2O
H2O2
IR spectroscopy
Photolysis
Soft X-rays
title_short PHOTOLYSIS OF ASTROPHYSICAL WATER ICE BY SOFT X-RAYS AND THE PRODUCTION OF H2O2 DURING THE PHASES OF IRRADIATION AND HEATING
title_full PHOTOLYSIS OF ASTROPHYSICAL WATER ICE BY SOFT X-RAYS AND THE PRODUCTION OF H2O2 DURING THE PHASES OF IRRADIATION AND HEATING
title_fullStr PHOTOLYSIS OF ASTROPHYSICAL WATER ICE BY SOFT X-RAYS AND THE PRODUCTION OF H2O2 DURING THE PHASES OF IRRADIATION AND HEATING
title_full_unstemmed PHOTOLYSIS OF ASTROPHYSICAL WATER ICE BY SOFT X-RAYS AND THE PRODUCTION OF H2O2 DURING THE PHASES OF IRRADIATION AND HEATING
title_sort PHOTOLYSIS OF ASTROPHYSICAL WATER ICE BY SOFT X-RAYS AND THE PRODUCTION OF H2O2 DURING THE PHASES OF IRRADIATION AND HEATING
author Oliveira, Sergio Pilling Guapyassu de
author_facet Oliveira, Sergio Pilling Guapyassu de
da Silva, Rita de Cassia
author_role author
author2 da Silva, Rita de Cassia
author2_role author
dc.contributor.author.fl_str_mv Oliveira, Sergio Pilling Guapyassu de
da Silva, Rita de Cassia
dc.subject.por.fl_str_mv Gelos astrofísicos
H2O
H2O2
Espectroscopia IR
Fotólise
Raios-X moles
Astroquímica
Astrophysical ice
H2O
H2O2
IR spectroscopy
Photolysis
Soft X-rays
topic Gelos astrofísicos
H2O
H2O2
Espectroscopia IR
Fotólise
Raios-X moles
Astroquímica
Astrophysical ice
H2O
H2O2
IR spectroscopy
Photolysis
Soft X-rays
description Astrophysical water-rich ices are always exposed to ionizing radiation in space, as well as, are exposed to eventual temperature changes. In the laboratory, the studies of such ices allow us to understand their behavior and chemical changes, allowing also the quantification of important physicochemical parameters of the ice. In the present work, a sample of water ice at 12 K was irradiated by soft X-rays in the SGM beamline of LNLS/CNPEM until reaching chemical equilibrium, and then it was heated up to 220 K. Using infrared spectroscopy (IR), we mapped the chemical evolution of the sample and quantified the production of its main product, the H2O2 molecule. The study has implications for the chemistry of star-forming regions as well as cold regions of the solar system.
publishDate 2023
dc.date.none.fl_str_mv 2023-03-28
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Texto
info:eu-repo/semantics/other
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revista.univap.br/index.php/revistaunivap/article/view/4386
10.18066/revistaunivap.v29i61.4386
url https://revista.univap.br/index.php/revistaunivap/article/view/4386
identifier_str_mv 10.18066/revistaunivap.v29i61.4386
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revista.univap.br/index.php/revistaunivap/article/view/4386/2215
dc.rights.driver.fl_str_mv Copyright (c) 2023 Revista Univap
https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2023 Revista Univap
https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.coverage.none.fl_str_mv National
Nacional
dc.publisher.none.fl_str_mv IBICT
publisher.none.fl_str_mv IBICT
dc.source.none.fl_str_mv Revista Univap; Vol. 29 No. 61 (2023): Revista Univap
Revista Univap; v. 29 n. 61 (2023): Revista Univap
2237-1753
1517-3275
10.18066/revistaunivap.v29i61
reponame:Revista UniVap (online)
instname:Universidade do Vale do Paraíba (Univap)
instacron:UNIVAP
instname_str Universidade do Vale do Paraíba (Univap)
instacron_str UNIVAP
institution UNIVAP
reponame_str Revista UniVap (online)
collection Revista UniVap (online)
repository.name.fl_str_mv Revista UniVap (online) - Universidade do Vale do Paraíba (Univap)
repository.mail.fl_str_mv revista@univap.br
_version_ 1797042284657639424

Registros relacionados