Results 71 to 80 of about 3,757,984 (333)

Recent Progress on Flexible Room-Temperature Gas Sensors Based on Metal Oxide Semiconductor

Nano-Micro Letters, 2022
Latest progress on flexible room temperature (FRT) gas sensor based on metal oxide semiconductors (MOS) is comprehensively reviewed. FRT gas sensor based on pristine MOS and MOS modified with noble metal nanoparticles, organic polymers, carbon based ...
Lang-Xi Ou, Meng Liu, Liyuan Zhu, David Wei Zhang, H. Lu   +4 more
semanticscholar   +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

On the variations of the elemental composition of the P3 component in presolar diamonds [PDF]

, 2004
Analysis of noble gas element variations in the P3 component of presolar diamonds indicates that a special mechanism of element fractionation is required to explain the ...
Fisenko, A. V., Pillinger, C. T., Semjonova, L. F., Verchovsky, A. B., Wright, I. P.   +4 more
core  

Concentrations and isotope ratios of helium and other noble gases in the Earth's atmosphere during 1978-2011

, 2012
The evolution of the atmospheric noble gas composition during the past few decades has hardly been studied because, in contrast to many other atmospheric gases, systematic time-series measurements have not been available.
Colin Maden, L. Paul Steele, Martin K. Vollmer, Matthias S. Brennwald, Nadia Vogel, Ray Langenfelds, Rolf Kipfer, Simon Figura   +7 more
core   +1 more source

Amphibole: A major carrier of helium isotopes in crustal rocks [PDF]

, 2016
The first evidence for a specific role of amphiboles in He isotope balance of crustal rocks was presented in early contributions by Gerling et al. (1971, 1976).
A.B. Verchovsky, Andrews, Ashkinadze, Baxter, Baxter, Baxter, Begemann, Belkov, Damon, Farley, Gaber, Gannibal, Gerling, Gerling, Gerling, Gerling, Gorshkov, Graham, Helz, Hilton, I.L. Kamensky, I.N. Tolstikhin, Jackson, Jackson, Jackson, Kalita, Kamensky, Kamensky, Kelley, Kendrick, Komarov, Komarov, Kremenetsky, Lee, Lee, Lee, Lee, Lippolt, M.A. Gannibal, Mamyrin, Martel, Matsumoto, Morozova, Morrison, Petrov, Pujol, S.V. Tarakanov, Scarsi, Shelby, Sherlock, Staudacher, Tolstikhin, Tolstikhin, Tolstikhin, Tolstikhin, Tolstikhin, Tolstikhin, Trull, V.I. Skiba, V.R. Vetrin, Verchovsky, Vetrin, Vetrin, Wartho, Wright, Wright   +65 more
core   +1 more source

Advancing Electronic Application of Coordination Solids: Enhancing Electron Transport and Device Integration via Surface‐Mounted MOFs (SURMOFs)

Advanced Functional Materials, EarlyView.
The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu, Christof Wöll, Stefan Bräse   +2 more
wiley   +1 more source

Noble gas geochemistry and chronology of groundwater in an active rift basin in central China [PDF]

E3S Web of Conferences, 2019
Stable noble gas isotopes are excellent groundwater tracers. Radioactive noble gases are emerging new tools in the study of groundwater circulation dynamics.
Pang Zhonghe, Li Jie, Tian Jiao
doaj   +1 more source

High-temperature ceramic-to-ceramic seals [PDF]

, 1972
Noble-metal braze applied to appropriately prepared zirconia parts produces a gas-tight, durable seal that can withstand temperature of 825 C for over 2000 hours without ...
Smart, W.
core   +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

Emission of Noble Gases Binary Mixtures under Excitation by the Products of the 6Li (n, α)3 H Nuclear Reaction

Science and Technology of Nuclear Installations, 2020
The luminescence of Kr-Xe, Ar-Kr, and Ar-Xe mixtures was studied in the spectral range 300–970 nm when excited by 6Li (n, α)3 H nuclear reaction products in the core of a nuclear reactor. Lithium was deposited on walls of experimental cell in the form of
Kuanysh Samarkhanov, Mendykhan Khasenov, Erlan Batyrbekov, Inesh Kenzhina, Yerzhan Sapatayev, Vadim Bochkov   +5 more
doaj   +1 more source