Results 111 to 120 of about 267,753 (326)

In-gap states of an amorphous In–Ga–Zn–O thin film studied via high-sensitivity ultraviolet photoemission spectroscopy using low-energy photons

, 2021
Ryotaro Nakazawa, Atsushi Matsuzaki, Kohei Shimizu, Emi Kawashima, Mojtaba Abdi‐Jalebi, Samuel D. Stranks, Yuya Tanaka, Hiroshi Tokairin, Hisao Ishii   +8 more
openalex   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

Colorado Ultraviolet Transit Experiment Near-ultraviolet Transmission Spectroscopy of the Ultrahot Jupiter KELT-9b

The Astronomical Journal
We present new near-ultraviolet (NUV, λ = 2479–3306 Å) transmission spectroscopy of KELT-9b, the hottest known exoplanet, obtained with the Colorado Ultraviolet Transit Experiment CubeSat.
Arika Egan, Kevin France, Aickara Gopinathan Sreejith, Luca Fossati, Tommi Koskinen, Brian Fleming, Nicholas Nell, Ambily Suresh, P. Wilson Cauley, Jean-Michel Desert, Pascal Petit, Aline A. Vidotto   +11 more
doaj   +1 more source

Wavelengths of the 3d6(5D)4s a6D - 3d6(5D)4p y6P Multiplet of Fe II (UV 8)

, 2011
We investigate the wavenumber scale of Fe I and Fe II lines using new spectra recorded with Fourier transform spectroscopy and using a re-analysis of archival spectra.
Aldenius, Aldenius, Bahcall, Batteiger, Chand, Craig J. Sansonetti, Dzuba, Emara, Gillian Nave, Griesmann, Hannemann, Johansson, Kaufman, Kaufman, Kramida, Learner, Learner, Maki, Murphy, Murphy, Nave, Nave, Nave, Norlén, Pickering, Pickering, Salit, Salumbides, Sansonetti, Thorne, Whaling   +30 more
core   +1 more source

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

The Composition and Structure of White Dwarf Atmospheres Revealed by Extreme Ultraviolet Spectroscopy [PDF]

, 1996
M. A. Barstow, I. Hubený, T. Lanz, J. B. Holberg, E. M. Sion   +4 more
openalex   +1 more source

Engineering Porous Hollow Metal‐Poly(Heptazine Imide) Spheres: An Optimized Synthetic Strategy for Controlling Surface, Morphology, and Properties

Advanced Functional Materials, EarlyView.
Hollow poly(heptazine imide) spheres are prepared through a novel approach that integrates hard templating with ionothermal synthesis. This method enables precise control over surface area, pore volume, hydrophilicity, light absorption, band position, and metal composition. These tunable properties facilitate the customized design of semiconductors for
Lingli Ni, Erik Troschke, Henrik Vorwerk, Shiva Shahbazi Avarvand, Andreas Stihl, Nadzeya Brezhneva, Marius Hermesdorf, Desirée Leistenschneider, Felix H. Schacher, Jacob Schneidewind, Martin Oschatz   +10 more
wiley   +1 more source

"Analysis of degree of benzene ring hydrogenation in hydrogenating styrene-conjugated diene block copolymer with proton nuclear magnetic resonance spectroscopy"

Hecheng xiangjiao gongye
The microstructure and composition of styrene-conjugated diene block copolymer and its hydrogenation product hydrogenated styrene-conjugated diene block copolymer (HSBC) were determined by nuclear magnetic resonance spectroscopy, degree of benzene ring ...
LI Fu-shi1,2, MO Xiao-jun1, PENG Hong-li1, YANG Fan1, LIANG Hong-wen1, JI Xiang-ling2
doaj   +1 more source

Quantitative analysis of smokeless powder particles in post-blast debris via gas chromatography/vacuum ultraviolet spectroscopy (GC/VUV). [PDF]

J Forensic Sci, 2022
Reavis M, Goodpaster J.
europepmc   +1 more source

Light‐Controlled Reversible Coassembly of Hybrid Functional Nanostructures

Advanced Functional Materials, EarlyView.
Light‐responsive hybrid nanostructures are formed by coassembling azobenzene‐ and PAH‐functionalized nanoparticles through reversible an tunable π interactions. The system enables tunable coupling between distinct components such as gold and magnetite or carbon nanotubes, producing switchable optical and magnetic properties under light and magnetic ...
Michal Sawczyk, Yanxiao Han, Soumyo Sen, Bartosz Smereczyński, Petr Král, Michał M. Wójcik   +5 more
wiley   +1 more source