Results 41 to 50 of about 67,162 (295)

Backbone Heterojunction Photocatalysts for Efficient Sacrificial Hydrogen Production

Advanced Functional Materials, EarlyView.
Herein, a ‘single‐component’ organic semiconductor photocatalyst is presented in which a molecular donor is bonded to a polymer acceptor. The resultant material demonstrates exceptional photocatalytic activity for hydrogen evolution in aqueous triethylamine with an outstanding external quantum efficiency of 38% at 420 nm.
Richard J. Lyons, Rhys J. Bourhill, Ewan McQueen, Sam D. Harding, Krzysztof Pawlak, Thomas Fellowes, Harry W. Capps, Alexander J. Cowan, Andrew I. Cooper, Adrian M. Gardner, Martijn A. Zwijnenburg, Reiner Sebastian Sprick   +11 more
wiley   +1 more source

Computation of hyperfine multiplet oscillator strengths in Tantalum atom

Beni-Suef University Journal of Basic and Applied Sciences
Background The electronic transitions between two fine levels depend on the transition probability. The transition probability depends on spectral line strength and oscillator strength.
Syed Qamar Shujat, Aafreena Nasim, Shafiq Ur Rehman, Muhammad Mustaqeem Zahid, Ahmed Ali Rajput, Mahwish Mobeen Khan   +5 more
doaj   +1 more source

Radiative Decay Rates for Electric Dipole, Magnetic Dipole and Electric Quadrupole Transitions in Triply Ionized Thulium (Tm IV)

Atoms, 2017
A new set of radiative decay parameters (oscillator strengths, transition probabilities) for spectral lines in triply ionized thulium (Tm IV) has been obtained within the framework of the pseudo-relativistic Hartree-Fock (HFR) approach.
Saturnin Enzonga Yoca, Pascal Quinet
doaj   +1 more source

Energy levels and radiative rates for transitions in Ti VI [PDF]

, 2013
We report on calculations of energy levels, radiative rates, oscillator strengths, and line strengths for transitions among the lowest 253 levels of the (1s$^2$2s$^2$2p$^6$) 3s$^2$3p$^5$, 3s3p$^6$, 3s$^2$3p$^4$3d, 3s3p$^5$3d, 3s$^2$3p$^33d^2$, 3s$^2$3p ...
Aggarwal, KM, Keenan, FP, Msezane, AZ
core   +1 more source

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou, Yu Mao, Mengyao Chang, Ziyun Wang, Wenke Xie, Cuizhu Ye, Shanghai Wei, Lars Thomsen, Geoffrey I. N. Waterhouse   +8 more
wiley   +1 more source

Ab-Initio Calculations of Level Energies, Oscillator Strengths and Radiative Rates for E1 Transitions in Beryllium-Like Iron

Atoms, 2015
In the present work, energy levels, oscillator strengths, radiative rates and wavelengths of Be-like iron (Fe\(^{22+}\)) from ab-initio calculations using the multiconfiguration Dirac-Hartree-Fock method are presented.
Ahmed Abou El-Maaref, Stefan Schippers, Alfred Müller   +2 more
doaj   +1 more source

Mixed configuration-interaction and many-body perturbation theory calculations of energies and oscillator strengths of J=1 odd states of neon [PDF]

, 2002
Ab-initio theory is developed for energies of J=1 particle-hole states of neutral neon and for oscillator strengths of transitions from such states to the J=0 ground state.
A. Hibbert, A. Hibbert, A. Kernahan, D.J. Chornay, E. Avgoustoglou, E. Avgoustoglou, E. Ilyabaev, E.J. Knystautas, E.N. Avgoustoglou, G.M. Lawrence, H. G. Berry, H.G. Kuhn, I. M. Savukov, I.M. Savukov, J. Geiger, K. Harth, L.J. Curtis, M.J. Seaton, M.J. Seaton, N.D. Bhaskar, N.D. Gibson, R.C.G. Ligtenberg, S. Kazantsev, S. Tsurubuchi, T.Y. Suzuki, U.I. Safronova, W. R. Johnson, W.B. Westerveld, W.F. Chan, Y.M. Aleksandrov, Z.P. Zhong   +30 more
core   +2 more sources

Role of Histidine‐Containing Peptoids in Accelerating the Kinetics of Calcite Growth

Advanced Functional Materials, EarlyView.
Amphiphilic histidine‐containing peptoids mimic carbonic anhydrase (CA) to accelerate calcite step growth. In the presence of Zn2+, they promote the deprotonation of HCO3−, the desolvation of Ca2+, and the reorganization of interfacial hydration layers, thereby reducing the activation barrier for calcite growth.
Mingyi Zhang, Ying Chen, Chenyang Shi, Progyateg Chakma, James J. De Yoreo, Chun‐Long Chen   +5 more
wiley   +1 more source

Cross Sections for Electron Impact Excitation of O VI Lines

Open Astronomy, 2011
Radiative atomic data and electron impact excitation cross sections for the 2s-2p transitions in O VI for transitions among the fine structure levels belonging to the 1s2nl (2 ≤ n ≤ 5) configurations have been calculated.
Elabidi Haykel, Sahal-Bréchot Sylvie, Nessib Nébil Ben   +2 more
doaj   +1 more source

Detailed Analysis of Configuration Interaction and Calculation of Radiative Transition Rates in Seven Times Ionized Tungsten (W VIII)

Atoms, 2015
A new set of oscillator strengths and transition probabilities for EUV spectral lines of seven times ionized tungsten (W VIII) is reported in the present paper.
Jérôme Deprince, Pascal Quinet
doaj   +1 more source