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The nuclear polarization of $\mathrm{H}_2$ molecules formed by recombination of nuclear polarized H atoms on the surface of a storage cell initially coated with a silicon-based polymer has been measured by using the longitudinal double-spin…

Atomic Physics · Physics 2012-08-27 The HERMES collaboration

The photocatalytic splitting of water into molecular hydrogen and molecular oxygen with sunlight is the dream reaction for solar energy conversion. Since decades, transition-metal-oxide semiconductors and supramolecular organometallic…

Chemical Physics · Physics 2018-07-10 Wolfgang Domcke , Johannes Ehrmaier , Andrzej L. Sobolewski

Photocatalytic water splitting represents a pivotal pathway for converting solar energy into chemical energy, with the core challenge lying in the design and optimization of photocatalysts [1] . TiO2, as a quintessential photocatalytic…

Materials Science · Physics 2025-02-20 Zhihao Shen

The production of hydrogen from water using only a catalyst and solar energy is one of the most challenging and promising outlets for the generation of clean and renewable energy. Semiconductor photocatalysts for solar hydrogen production…

Using an activation mechanism reproducing facilitation, a dynamic phase transition triggered by a few active molecules was recently found in a supercooled model liquid. Prompted by this finding we investigate the presence of a similar…

Soft Condensed Matter · Physics 2025-11-14 Quoc Tuan Truong , Victor Teboul

The polarization entanglement photon pairs generated from the biexciton cascade decay in a single semiconductor quantum dot is corrupted by the position-dependent (time-dependent) phase difference of the two polarization mode due to the…

Quantum Physics · Physics 2009-11-27 Xiang-Bin Wang , C. X. Yang , Y. B. Liu

The photo-induced desorption and oxidation of CO on Ru(0001) is simulated using ab initio molecular dynamics with electronic friction that accounts for the non-equilibrated excited electrons and phonons. Different (O,CO) coverages are…

Materials Science · Physics 2023-07-06 Auguste Tetenoire , J. Iñaki Juaristi , Maite Alducin

During aqueous corrosion, atoms in the solid react chemically with oxygen, leading either to the formation of an oxide film or to the dissolution of the host material. Commonly, the first step in corrosion involves an oxygen atom from the…

Materials Science · Physics 2021-04-01 Jianqi Xi , Cheng Liu , Dane Morgan , Izabela Szlufarska

Although perovskite oxides hold promise in applications ranging from solid oxide fuel cells to catalysts, their surface chemistry is poorly understood at the molecular level. Here we follow the formation of the first monolayer of water at…

The formation of water molecules from the reaction between ozone (O3) and D-atoms is studied experimentally for the first time. Ozone is deposited on non-porous amorphous solid water ice (H2O), and D-atoms are then sent onto the sample held…

Astrophysics of Galaxies · Physics 2015-05-13 H. Mokrane , H. Chaabouni , M. Accolla , E. Congiu , F. Dulieu , M. Chehrouri , J. L. Lemaire

Photocatalytic- and Photoelectrochemical water splitting is currently performed using radiation sources with wavelengths < 1000 nm, i.e. in the near infrared range (NIR). The fact that water has a broad absorption band, which lies at…

Chemical Physics · Physics 2023-01-16 Klara Ruewe , Helmut Schaefer

Using density functional theory (DFT), we investigated the structural, electronic and optical properties of functionalized and doped MXenes such as M$_1$M$_2$CO$_2$ (M$_1$ = Zr,Hf; M$_2$ = Hf,Ti,Sc). This study aimed to find a suitable…

Materials Science · Physics 2023-05-29 Sima Rastegar , Alireza Rastkar Ebrahimzadeh , Jaber Jahanbin Sardroodi

The pronounced light-matter interactions in photonic crystals make them interesting as opto-fludic "building blocks" for lab-on-a-chip applications. We show how conducting electrolytes cause dissipation and smearing of the…

Optics · Physics 2007-05-23 Niels Asger Mortensen , Simon Ejsing , Sanshui Xiao

Co(II) dissolved in acetate buffer at pH 7 is found to be a good water oxidation catalyst (WOC) showing electrocatalytic water oxidation current significantly greater than Co(II) in phosphate buffer under the same conditions owing to the…

Materials Science · Physics 2017-09-13 Subal Dey , Biswajit Mondal , Abhishek Dey

Traditionally, photodetector is based on solid materials constructed PN junction, which needs many delicate growth technologies. Herein, we demonstrate the feasibility of polarized liquid triggered photodetector where the liquid is…

Applied Physics · Physics 2022-07-01 Chang Liu , Yanghua Lu , Xutao Yu , Can Wang , Runjiang Shen , Shisheng Lin

We show that the formation of the wetting layer and the experimentally observed continuous shift of the H2O-OH balance towards molecular water at increasing coverage on a TiO2(110) surface can be rationalized on a molecular level. The…

Materials Science · Physics 2013-08-20 M. Amft , L. E. Walle , D. Ragazzon , A. Borg , P. Uvdal , N. V. Skorodumova , A. Sandell

Hydrophobic solutes significantly alters water hydrogen bond network. The local alteration of solvation struc-tures get reflected in the vibrational spectroscopic signal. Although it is possible to detect this microscopicfeatures by modern…

Chemical Physics · Physics 2020-06-16 Kambham Devendra Reddy , Rajib Biswas

The present density functional theory study addresses the question whether the presence of H2O influences the catalytic activity of small gold clusters, Au1-4/MgO(100), towards the oxidation of carbon monoxide. To this end, we studied the…

Mesoscale and Nanoscale Physics · Physics 2011-08-24 Martin Amft , Natalia V. Skorodumova

A sequential of concepts developed in last decade has enabled a resolution to multiple anomalies of water ice and its low-dimensionality, particularly. Developed concepts include the coupled hydrogen bond oscillator pair, segmental specific…

Soft Condensed Matter · Physics 2020-06-17 Chang Q Sun

The activation and dissociation of H2 molecules on Cu(001) surface is studied theoretically. The activation barrier for the dissociation of H2 on Cu(001) is determined by first-principles calculations to be ~ 0.59 eV in height. Electron…

Mesoscale and Nanoscale Physics · Physics 2023-06-06 Xiaofan Yu , Yangwu Tong , Yong Yang
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