Results 91 to 100 of about 24,784,454 (399)

Copper Doping Enhances the Activity and Selectivity of Atomically Precise Ag44 Nanoclusters for Photocatalytic CO2 Reduction

Advanced Functional Materials, EarlyView.
By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu, Xi Zheng, Xiufan Liu, Tengyuan Gao, Nicola Pinna, Yu Wang   +5 more
wiley   +1 more source

Energetic electrons along the high-latitude magnetopause [PDF]

Annales Geophysicae, 2012
A case study is presented to determine the source of the energetic electron layer frequently observed along the high-latitude magnetopause. Measurements by the Cluster spacecraft show bursts of field-aligned electrons occurring during time periods ...
B. M. Walsh, B. M. Walsh, S. E. Haaland, S. E. Haaland, P. W. Daly, E. A. Kronberg, T. A. Fritz   +6 more
doaj   +1 more source

Solar Furnace: Heliostat and Concentrator Design [PDF]

, 2011
In recent decades, solar energy has been shown as a viable, clean, and abundant alternative to fossil fuels. Many methods of solar energy collection are being researched, with solar thermal electrochemistry being one of the most promising.
Gaide, Matthew, Heagney, Tyler, Schiller, Andrew   +2 more
core   +2 more sources

Enhancing CoFe Catalysts with V2CTX MXene‐Derived Materials for Anion Exchange Membrane Electrolyzers

Advanced Functional Materials, EarlyView.
MXene dervied CoFe composites show increased initial Oxygen Evolution Reaction (OER) activity compared to the pure CoFe and MXene in an Anion Exchange Membrane device. Vanadium vacancies in the MXene plays a role in increased OER activity and hinders Fe leaching in the AEM device over using the pure V2C MXene as a support material for the CoFe ...
Can Kaplan, Karuppasamy Dharmaraj, Thorsten Schultz, Leiqiang Qin, Ningjun Chen, Danielle A. Douglas‐Henry, Bastian Schmiedecke, Merve Buldu‐Akturk, Axel Zuber, Iris Dorbandt, Maximilian Reinhardt, Yael Rodriguez‐Ayllon, Yan Lu, Valeria Nicolosi, Norbert Koch, Johanna Rosen, Michelle P. Browne   +16 more
wiley   +1 more source

Dust Coagulation in Oxygen-rich Circumstellar Outflows

The Astrophysical Journal, 2023
We show that the inefficient growth of SiO molecules on (SiO) _x dust grains prolongs the period of maximum dust nucleation in circumstellar outflows resulting in a several orders-of-magnitude increase in the dust density near the star.
John A. Paquette, Joseph A. Nuth, Frank T. Ferguson   +2 more
doaj   +1 more source

United Stirling's Solar Engine Development: the Background for the Vanguard Engine [PDF]

, 1984
The development and testing resulting in the Vanguard engine and some of the characteristics of the Stirling engine based power conversion unit are described.
Holgersson, S.
core   +1 more source

Self‐supportive Three‐Way Photoelectrochemical System Achieving Uranium Recycling, Organic Oxidation, and Electricity Generation in Complex Waters

Advanced Functional Materials, EarlyView.
A self‐sustaining solar photoelectrochemical cell (SS‐PEC) is developed to recover uranium from aqueous UO22+ with concurrent organic oxidation and electricity production. The monolithical photoanode directly captures electrons from organic compounds, leading to the oxidation of organic compounds and the decomposition of uranium‐organic complexes ...
Yumei Wang, Qingming Zeng, Haodong Ji, Rongzhong Wang, Jiachen Wang, Yanjun Wen, Wonyong Choi, Qingyi Zeng   +7 more
wiley   +1 more source

THE OUTER SOLAR SYSTEM ORIGINS SURVEY. I. DESIGN AND FIRST-QUARTER DISCOVERIES [PDF]

, 2015
We report the discovery, tracking, and detection circumstances for 85 trans-Neptunian objects (TNOs) from the first 42 deg2 of the Outer Solar System Origins Survey. This ongoing r-band solar system survey uses the 0.9 deg2 field of view MegaPrime camera
M. Bannister, M. Bannister, J. Kavelaars, J. Petit, B. Gladman, S. Gwyn, Ying-Tung Chen, K. Volk, M. Alexandersen, S. Benecchi, A. Delsanti, W. Fraser, M. Granvik, W. Grundy, A. Guilbert-Lepoutre, D. Hestroffer, W. Ip, W. Ip, M. Jakubik, L. Jones, N. Kaib, Catherine F. Kavelaars, P. Lacerda, S. Lawler, M. Lehner, Hsing-Wen Lin, T. Lister, P. S. Lykawka, S. Monty, M. Marsset, R. Murray-Clay, K. Noll, A. Parker, R. Pike, P. Rousselot, D. Rusk, M. Schwamb, C. Shankman, B. Sicardy, P. Vernazza, Shiang‐Yu Wang   +40 more
semanticscholar   +1 more source

James Webb Space Telescope Observations of Stellar Occultations by Solar System Bodies and Rings [PDF]

Publications of the Astronomical Society of the Pacific, 2015
In this paper, we investigate the opportunities provided by the James Webb Space Telescope (JWST) for significant scientific advances in the study of Solar System bodies and rings using stellar occultations.
P. Santos-Sanz, R. French, N. Pinilla-Alonso, J. Stansberry, Z.-Y. Lin, Z. Zhang, E. Vilenius, T. Muller, J. Ortiz, F. Braga-Ribas, A. Bosh, R. Duffard, E. Lellouch, G. Tancredi, L. Young, S. Milam, the Jwst occultations focus group. Instituto de Astrof Andaluc'ia, Iaa-Csic, Glorieta de la Astronom'ia, Granada, Spain, D. O. Astronomy, Wellesley College, Usa, D. O. Earth, Planetary Sciences, U. Tennessee, Knoxville, Tn, Space Telescope Science Institute, Baltimore., Md, I. O. Astronomy, National Central University, Taiwan, Astrophysics, A. Sinica, M. F. P. Physics, Garching, H Germany, Max Planck Institute for Solar System Research, Gottingen, Federal University of Technology - Paran'a, Curitiba, Brazil, Atmospheric, Mit, Cambridge, Ma, L. Paris, Cnrs, 6. UPMCUniv.Paris, Univ. Paris-Diderot, Meudon, France., D. D. Astronom'ia, F. Ciencias, Montevideo, Uruguay., SwRI, 1050 Walnut St., Boulder, CO 80302-5150, Nasa Goddard Space Flight Center, Greenbelt   +64 more
semanticscholar   +1 more source

Influences of Optical Factors on the Performance of the Solar Furnace

Energies, 2019
In this paper, an optical structure design for a solar furnace is described. Based on this configuration, Monte Carlo ray tracing simulations are carried out to analyze the influences of four optical factors on the concentrated solar heat flux ...
Zhiying Cui, Fengwu Bai, Zhifeng Wang, Fuqiang Wang   +3 more
doaj   +1 more source