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In$_2$O$_3$-based catalysts have shown high activity and selectivity for CO$_2$ hydrogenation to methanol, however the origin of the high performance of In$_2$O$_3$ is still unclear. To elucidate the initial steps of CO$_2$ hydrogenation…

Present study investigates the photoabsorption properties of single crystal rutile TiO2 (110) surfaces after they have been implanted with low fluence of Cobalt ions. The surfaces, after implantation, demonstrate fabrication of…

Molecular adsorption on surfaces plays an important part in catalysis, corrosion, desalination, and various other processes that are relevant to industry and in nature. As a complement to experiments, accurate adsorption energies can be…

The optical properties of thermally annealed TiO2 samples depend on their preparation process, and the TiO2 thin films usually exist in the form of anatase or rutile or the mixture of the two phases. The electronic structures and optical…

Materials Science · Physics 2016-11-29 Li Jinping , Meng Songhe , Qin Liyuan , Hantao Lu

Knowledge of the frontier levels' alignment prior to photo-irradiation is necessary to achieve a complete quantitative description of H$_2$O photocatalysis on TiO$_2$(110). Although H$_2$O on rutile TiO$_2$(110) has been thoroughly studied…

Materials Science · Physics 2015-01-16 Annapaola Migani , Duncan J. Mowbray , Jin Zhao , Hrvoje Petek

A first-principles atomic orbital-based electronic structure method is used to investigate the low index surfaces of rutile Titanium Dioxide. The method is relatively cheap in computational terms, making it attractive for the study of oxide…

Materials Science · Physics 2009-10-28 O. Gulseren , R. James , D. W. Bullett

Using fluorescence microscopy we study the adsorption of single latex microparticles at a water/water interface between demixing aqueous solutions of polymers, generally known as a water-in-water emulsion. Similar microparticles at the…

Soft Condensed Matter · Physics 2018-05-23 Louis Keal , Carlos E. Colosqui , Hans Tromp , Cecile Monteux

Interactions between molecules and electrode surfaces play a key role in electrochemical processes and are a subject of extensive research, both experimental and theoretical. In this manuscript, we address the water dissociation reaction on…

Chemical Physics · Physics 2023-02-16 Karen Fidanyan , Guoyuan Liu , Mariana Rossi

The availability of low-index rutile TiO2 single crystal substrates with atomically flat surfaces is essential for enabling epitaxial growth of rutile transition metal oxide films. The high surface energy of the rutile (001) surface often…

Materials Science · Physics 2016-03-23 Yang Wang , Shinbuhm Lee , Paolo Vilmercati , Ho Nyung Lee , Hanno H. Weitering , Paul C. Snijders

The desorption characteristics of molecules on interstellar dust grains are important for modelling the behaviour of molecules in icy mantles and, critically, in describing the solid-gas interface. In this study, a series of laboratory…

Solar and Stellar Astrophysics · Physics 2015-06-03 J. A. Noble , E. Congiu , F. Dulieu , H. J. Fraser

Water dissociation is of fundamental importance in scientific fields and has drawn considerable interest in diverse technological applications. However, the high activation barrier of breaking the O-H bond within the water molecule has been…

Materials Science · Physics 2023-03-15 Zhijing Huang , Zihan Yan , Guangdong Zhu , Xing Chen , Shuming Zeng , Xiuyun Zhang , Liang Zhao , Yusong Tu

The adsorption equilibrium constants of monovalent and divalent cations to material surfaces in aqueous media are central to many technological, natural, and geochemical processes. Cation adsorption/desorption is often proposed to occur in…

Earth-abundant materials exhibiting Mie resonances across the visible and near-infrared offer opportunities for efficient and sustainable sensing, thermal regulation, and sunlight harvesting. For anatase TiO$_2$, a broadband optical and…

Materials Science · Physics 2025-11-14 Pedro Tartaj , Yurena Luengo , Pedro Moronta , Luisina Forzani , Alvaro Blanco , Cefe López

Using first-principles calculations, we systematically study the potential energy surfaces and dissociation processes for hydrogen molecules on the clean and hydrogen-preadsorbed Be(0001) surfaces. It is found that the most energetically…

Materials Science · Physics 2015-05-13 Yanfang Li , Yu Yang , Bo Sun , Yinghui Wei , Ping Zhang

Water isotope separation, specifically separating heavy from light water, is a socially significant issue due to the usage of heavy water in applications such as nuclear magnetic resonance, nuclear power, and spectroscopy. Separation of…

Chemical Physics · Physics 2024-11-14 Jinu Jeong , Chenxing Liang , Narayana Aluru

The kinetics of hydrogen absorption by magnesium bulk is affected by two main activated processes: the dissociation of the H$_2$ molecule and the diffusion of atomic H into the bulk. In order to have fast absorption kinetics both activated…

Materials Science · Physics 2008-11-17 Monica Pozzo , Dario Alfe`

TiO2 is a technologically important material. In particular, its anatase polymorph plays a major role in photocatalysis, which can also accommodate charged and neutral vacancies. There is, however, scant theoretical work on the vacancy…

Materials Science · Physics 2023-02-28 Jeffrey Rohan De Lile , Normand Mousseau

The structural, electronic, and adhesive properties of Cu/SiO$_2$ interfaces are investigated using first-principles density-functional theory within the local density approximation. Interfaces between fcc Cu and $\alpha$-cristobalite(001)…

Materials Science · Physics 2016-08-31 Kazutaka Nagao , J. B. Neaton , N. W. Ashcroft

We adapt the computational hydrogen electrode approach to explicitly account for photo-generated charges and use it to computationally screen for viable catalyst/co-catalyst combinations for photo-catalytic water splitting. The hole energy…

Materials Science · Physics 2013-07-31 Harald Oberhofer , Karsten Reuter

The adsorption and dissociation of nitrogen molecule on Fe(111) surface is studied by density functional theory calculations. The simulation results show that the molecule needs to acquire parallel orientation with respect to the surface…

Materials Science · Physics 2014-12-30 Myong-Song Ryang , Nam-Hyok Kim , Song-Jin Im
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