Adsorption and dissociation of COCl2 on the rutile TiO2(110) surfaces: a systematic first-principles study

Literature Information

Publication Date 2021-09-01
DOI 10.1039/D1CP03062K
Impact Factor 3.676
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Abstract

The adsorption and dissociation of phosgene (COCl2) molecules on three kinds of rutile TiO2(110) surfaces (stoichiometric: TiO2-Sto; oxygen defective: TiO2-Ov; and substoichiometric: TiO1.875) were investigated based on density functional theory calculations. The nature of interactions between the COCl2 molecule and rutile TiO2(110) surfaces with different degrees of reduction was researched by the analysis of geometries, electron density difference, adsorption energies and density of states (DOS). Computational results show that COCl2 indicates instability and will dissociate directly without the presence of transition states on a substoichiometric TiO1.875(110) surface. The adsorption and dissociation behavior of COCl2 on the rutile surface is not only helpful in providing theoretical support for the clean and efficient degradation of COCl2, but also helpful in elucidating the role of COCl2 as an intermediate product in the carbochlorination of titanium ore.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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