Results 151 to 160 of about 185,159 (346)

A Novel Ti12‐Based Metal‐Organic Framework for Photocatalytic Hydrogen Evolution

Advanced Energy Materials, EarlyView.
MIP‐209(Ti) is a new microporous MOF built up from Ti₁₂O₁₅ clusters and substituted terephthalate linkers, enabling isoreticular chemistry and clusters tunability for photocatalytic applications. Cr3⁺ doping (≤5 at%) on Ti‐oxoclusters drastically enhances water stability and boosts hydrogen production from water under simulated solar light irradiation.
Bingbing Chen, Asma Mansouri, Celia M. Rueda‐Navarro, Iurii Dovgaliuk, Philippe Boullay, Arianna Melillo, Juan José Ramírez‐Hernández, Beibei Xiao, Dong Fan, Lokuge Aravindani Fernando, Gilles Patriarche, Ieuan Cornu, Pierre Florian, Guillaume Maurin, Sergio Navalón, Hermenegildo Garcia, Georges Mouchaham, Christian Serre   +17 more
wiley   +1 more source

Single‐Atom Co Meets Remote Fe for a Synergistic Boost in Oxygen Electrocatalysis

Advanced Energy Materials, EarlyView.
A one‐step Coordination‐Selective Synthesis strategy enables the integration of Co‐N4 single‐atom sites with remote Fe‐based nanoparticles, optimizing electrocatalytic performance. Electrochemical tests confirm that Fe‐based nanoparticles enhance charge and mass transport, boosting reaction kinetics.
Zongge Li, Wenjun Kang, Jingkai Lin, Rui Li, Konggang Qu, Suyuan Zeng, Lei Wang, Fanpeng Meng, Huayang Zhang, Haibo Li   +9 more
wiley   +1 more source

Cool stars as tracers of multiple stellar populations in the Galactic globular cluster 47 Tuc [PDF]

arXiv, 2014
Although numerous photometric and spectroscopic studies of stars in Galactic globular clusters suggest the existence of several stellar generations in the majority of clusters studied so far, kinematical properties of these stellar generations are still relatively poorly know.
arxiv  

A Hydroxylated Tetracationic Viologen based on Dimethylaminoethanol as a Negolyte for Aqueous Flow Batteries

Batteries &Supercaps, Volume 6, Issue 1, January 2023., 2023
Negolytes: A new hydroxylated tetracationic viologen was effectively prepared by selecting a dimethylaminoethanol derivative as permanently charged moiety. Intended for aqueous flow battery negolytes, the compound showed enhanced solubility and was characterized by NMR, DFT calculations, DOSY and electrochemical techniques.
Carlo Caianiello, Luis F. Arenas, Thomas Turek, René Wilhelm   +3 more
wiley   +1 more source

Molecular Gas in Elliptical Galaxies: Distribution and Kinematics

, 2002
I present interferometric images (approx. 7" resolution) of CO emission in five elliptical galaxies and nondetections in two others. These data double the number of elliptical galaxies whose CO emission has been fully mapped.
Braine J., Charmandaris V., Cinzano P., Fasano G., Huchtmeier W. K., L. M. Young, Oosterloo T., Prugniel P., Reuter H-P., Rydbeck G., Scorza C., Wiklind T., Wiklind T.   +12 more
core   +2 more sources

Kinematics and Stellar Populations of the Galactic Bulge [PDF]

Publications of the Astronomical Society of the Pacific, 1994
In order to measure radial and/or rotation velocities and obtain metallicities for the stellar population of the Galactic bulge, several hundred spectra of giants have been obtained. These include three bulge fields at projected distances from the Galactic center of 1.5, 1.7 and 1.7 kpc, and 33 globular and open clusters. We measure metallicities based
openaire   +2 more sources

The Milky Way’s Rowdy Neighbors: The Effects of the Large Magellanic Cloud and Sagittarius Dwarf on the Milky Way Disk

The Astrophysical Journal
The Milky Way (MW) is a barred spiral galaxy shaped by tidal interactions with its satellites. The Large Magellanic Cloud (LMC) and the Sagittarius dwarf galaxy (Sgr) are the dominant influences at the present day. This paper presents a suite of four 10 ^
Ioana A. Stelea, Jason A. S. Hunt, Kathryn V. Johnston   +2 more
doaj   +1 more source

Enhanced kinematics and distribution characteristics of Upper Scorpius and Ophiuchus associations based on Gaia DR3 [PDF]

arXiv
The kinematics within the Solar vicinity have revealed interesting features relevant to both stellar and Galactic structures. This study examines three stellar associations in the Upper Scorpius and Ophiuchus regions, along with their sub-samples among Gaia DR3.
arxiv  

The Escape Velocity Profile of the Milky Way from Gaia DR3

The Astrophysical Journal
The escape velocity profile of the Milky Way offers a crucial and independent measurement of its underlying mass distribution and dark matter (DM) properties.
Cian Roche, Lina Necib, Tongyan Lin, Xiaowei Ou, Tri Nguyen   +4 more
doaj   +1 more source

Automated stellar spectra parameterisation for Gaia-RVS

EPJ Web of Conferences, 2012
Degeneracies in the stellar atmospheric parameters can pollute large spectroscopic surveys, introducing possible biases in the derived distances, kinematics and chemical abundances. We focus at the wavelength range shared by RAVE, the RVS of Gaia and the
Wyse R.F.G., Gilmore G., Hill V., Bijaoui A., de Laverny P., Recio-Blanco A., Kordopatis G., Ordenovic C.   +7 more
doaj   +1 more source