Ab Initio Density Functional Theory Calculation: Americium Hydrolysis Mechanism

The hydrolysis mechanism of americium was calculated using density functional theory, and the detailed microscopic reaction mechanism was obtained. The results show that americium reacts with water along the octet state to produce oxides and H<sub>2</sub>, and that this reaction is exoth...

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Main Authors: Na Shan, Tao Gao
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/17/3/572
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author Na Shan
Tao Gao
author_facet Na Shan
Tao Gao
author_sort Na Shan
collection DOAJ
description The hydrolysis mechanism of americium was calculated using density functional theory, and the detailed microscopic reaction mechanism was obtained. The results show that americium reacts with water along the octet state to produce oxides and H<sub>2</sub>, and that this reaction is exothermic. The interaction between Am and O atoms gradually changes from initially electrostatic interaction to covalent interaction, and continues to strengthen. During the reaction process, Am atoms always lose electrons, the 5f orbital is obviously involved, and there is df orbital hybridization. This study provides the necessary theoretical data support for the theoretical and experimental study of the actinide system.
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spelling doaj.art-28e935a2b8d047f19401d27900ff62ed2024-02-09T15:17:12ZengMDPI AGMaterials1996-19442024-01-0117357210.3390/ma17030572Ab Initio Density Functional Theory Calculation: Americium Hydrolysis MechanismNa Shan0Tao Gao1Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, ChinaInstitute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, ChinaThe hydrolysis mechanism of americium was calculated using density functional theory, and the detailed microscopic reaction mechanism was obtained. The results show that americium reacts with water along the octet state to produce oxides and H<sub>2</sub>, and that this reaction is exothermic. The interaction between Am and O atoms gradually changes from initially electrostatic interaction to covalent interaction, and continues to strengthen. During the reaction process, Am atoms always lose electrons, the 5f orbital is obviously involved, and there is df orbital hybridization. This study provides the necessary theoretical data support for the theoretical and experimental study of the actinide system.https://www.mdpi.com/1996-1944/17/3/572reaction mechanismab initiodensity functional theorytopology analysismicroscopic reaction mechanism
spellingShingle Na Shan
Tao Gao
Ab Initio Density Functional Theory Calculation: Americium Hydrolysis Mechanism
Materials
reaction mechanism
ab initio
density functional theory
topology analysis
microscopic reaction mechanism
title Ab Initio Density Functional Theory Calculation: Americium Hydrolysis Mechanism
title_full Ab Initio Density Functional Theory Calculation: Americium Hydrolysis Mechanism
title_fullStr Ab Initio Density Functional Theory Calculation: Americium Hydrolysis Mechanism
title_full_unstemmed Ab Initio Density Functional Theory Calculation: Americium Hydrolysis Mechanism
title_short Ab Initio Density Functional Theory Calculation: Americium Hydrolysis Mechanism
title_sort ab initio density functional theory calculation americium hydrolysis mechanism
topic reaction mechanism
ab initio
density functional theory
topology analysis
microscopic reaction mechanism
url https://www.mdpi.com/1996-1944/17/3/572
work_keys_str_mv AT nashan abinitiodensityfunctionaltheorycalculationamericiumhydrolysismechanism
AT taogao abinitiodensityfunctionaltheorycalculationamericiumhydrolysismechanism