Raman mapping of coal halos induced by uranium mineral radiation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F21%3A00000148" target="_blank" >RIV/00025798:_____/21:00000148 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985891:_____/21:00541941 RIV/61389005:_____/21:00539409

Výsledek na webu

<a href="https://doi.org/10.1016/j.saa.2020.118996" target="_blank" >https://doi.org/10.1016/j.saa.2020.118996</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.saa.2020.118996" target="_blank" >10.1016/j.saa.2020.118996</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Raman mapping of coal halos induced by uranium mineral radiation

Popis výsledku v původním jazyce

Using linear profilesacross the entire halos, changes in the degree of radiolytic alteration of coal matter caused by ionising radiationresulting from the decay of uranium and its daughter products, were described. Using micro-ATR-FTIR,oxidative radiolytic alteration of coal was identified in halos, with oxidisation to alcohols, ketones and carboxylgroups, which were then converted to COO− ions bound to the cations present, including UO22+. From ourdata, we conclude that the conversion of the original coal to a type of anthracite occurred during the process ofCHandCC cleavage, dehydroaromatisation of naphthenic rings and oxidation resulting in the transformationof aliphatic structures into aromatic clusters. Generally, radiolytic alteration increased the structural organisationof coal.Monte Carlo simulations of the observed radiation alteration by the ionising energy loss and non-ionisingenergy loss were performed.

Název v anglickém jazyce

Raman mapping of coal halos induced by uranium mineral radiation

Popis výsledku anglicky

Using linear profilesacross the entire halos, changes in the degree of radiolytic alteration of coal matter caused by ionising radiationresulting from the decay of uranium and its daughter products, were described. Using micro-ATR-FTIR,oxidative radiolytic alteration of coal was identified in halos, with oxidisation to alcohols, ketones and carboxylgroups, which were then converted to COO− ions bound to the cations present, including UO22+. From ourdata, we conclude that the conversion of the original coal to a type of anthracite occurred during the process ofCHandCC cleavage, dehydroaromatisation of naphthenic rings and oxidation resulting in the transformationof aliphatic structures into aromatic clusters. Generally, radiolytic alteration increased the structural organisationof coal.Monte Carlo simulations of the observed radiation alteration by the ionising energy loss and non-ionisingenergy loss were performed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Spectrochimica Acta. Part A

ISSN

1386-1425

e-ISSN

—

Svazek periodika

246

Číslo periodika v rámci svazku

February : 118996

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

nestránkováno

Kód UT WoS článku

000592411800010

EID výsledku v databázi Scopus

2-s2.0-85091977564