Results 81 to 90 of about 579,715 (353)

QUARTZ FROM HYDROTHERMAL VEINS OF THE ARKAIM AREA, SOUTH URALS: DATA ON VIBRATIONAL SPECTROSCOPY, GAS CHROMATOGRAPHY, AND FLUID INCLUSIONS [PDF]

Минералогия, 2015
Quartz veins from the Arkaim area, South Urals, belong to two volcanogenic-hydrothermal systems: Middle Devonian (gold-sulfide-quartz zones and hematite-quartz edifice) and Early Carboniferous (sulfide-quartz veins in trachybasalts, trachyrhyolites, and ...
M.V. Shtenberg, N.N. Ankusheva
doaj  

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

Advanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer, Mareen Stahlberger, Xiaojing Liu, Yi Luo, Niklas E. Häußermann, Puja Singhvi, Yidong Liu, Olaf Fuhr, Martin Nieger, Lars Heinke, Thomas Heine, Christof Wöll, Stefan Bräse   +12 more
wiley   +1 more source

Revealing Hidden Vibration Polariton Interactions by 2D IR Spectroscopy

, 2017
We report the first experimental two-dimensional infrared (2D IR) spectra of novel molecular photonic excitations - vibrational-polaritons. The application of advanced 2D IR spectroscopy onto novel vibrational-polariton challenges and advances our ...
Dunkelberger, Adam D., Li, Yingmin, Owrutsky, Jeffrey C., Ribeiro, Raphael F., Simpkins, Blake S., Wang, Jiaxi, Xiang, Bo, Xiong, Wei, Yuen-Zhou, Joel   +8 more
core   +1 more source

Synthesis and investigation of nanoscale magnesium carbonate stabilized with hyaluronic acid

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов
As part of this work, the synthesis and study of nanoscale magnesium carbonate stabilized with hyaluronic acid was carried out. At the first stage, quantum chemical simulation of the interaction of magnesium carbonate nanoparticles with hyaluronic acid ...
A.V. Blinov, M.A. Pirogov, M.A. Yasnaya, A.S. Askerova, I.M. Shevchenko, S.V. Artyushin   +5 more
doaj   +1 more source

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

Advanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal, Laura Calderón‐Rodríguez, Oksana Smirnova, Eren Grossmann, Aparna Binu Varghese, Karen Marlenne Garcia Alvarez, Andreas Schneemann, Thomas Hoyer, Ralf Wyrwa, Felix Helmut Schacher, Alexander Knebel   +10 more
wiley   +1 more source

A large population of mid-infrared selected, obscured active galaxies in the Bootes field

, 2007
We identify a population of 640 obscured and 839 unobscured AGNs at redshifts 0 ...
A. Dey, Antonucci R., Awaki H., B. T. Jannuzi, Bolzonella M., C. Jones, C. S. Kochanek, Comastri A., D. Eisenstein, D. Stern, Fioc M., K. Brand, Lawrence A., M. Brodwin, M. J. I. Brown, N. Caldwell, P. R. Eisenhardt, R. C. Hickox, R. J. Cool, S. S. Murray, Setti G., Silk J., V. Gorjian, W. R. Forman   +23 more
core   +1 more source

Mid-Infrared diagnostics of metal-rich HII regions from VLT and Spitzer Spectroscopy of Young Massive Stars in W31 [PDF]

, 2009
We present near-IR VLT/ISAAC and mid-IR Spitzer/IRS spectroscopy of the young massive cluster in the W31 star-forming region. H-band spectroscopy provides refined classifications for four cluster members O stars with respect to Blum et al.
Barbosa, CL, Blum, RD, Conti, PS, Crowther, PA, Furness, JP, Morris, PW, van Dyk, SD   +6 more
core   +3 more sources

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

Coexistence of high electrical conductivity and weak ferromagnetism in Cr doped Y$_2$Ir$_2$O$_7$ pyrochlore iridate

, 2019
We report the structural, magnetic and electrical transport properties of Y$_2$Ir$_{2-x}$Cr$_x$O$_7$ pyrochlore iridates. The chemical doping leads to order of magnitude enhancement of electrical conductivity.
Dwivedi, Vinod Kumar, Mukhopadhyay, Soumik   +1 more
core   +1 more source