Results 131 to 140 of about 451,390 (293)

Abiotic formation of O2 and O3 in high-CO2 terrestrial atmospheres

, 2007
Previous research has indicated that high amounts of ozone (O3) and oxygen (O2) may be produced abiotically in atmospheres with high concentrations of CO2.
A. Segura, Angel, Baum, Berkner, Berkner, Berkner, Berkner, Brinkman, Canuto, Canuto, Cloud, Clough, Cockell, Cohen, Crisp, D. Crisp, Des Marais, Dorren, Emerich, Giorgi, Gray, Gruszka, Gruszka, Gruszka, Hartman, Hartmann, Holland, Hunten, J. F. Kasting, Kasting, Kasting, Kasting, Kasting, Kasting, Kasting, Kasting, Kasting, Kasting, Kelley, Lee, Leger, Levine, Liang, M. Cohen, Massa, Massie, McElroy, Meadows, Montes, Pavlov, Pavlov, Raymond, Ribas, Rosenkranz, Schindler, Schrag, Segura, Selsis, Sleep, Sleep, Slinn, Stam, Strassmeier, Tian, V. S. Meadows, West, Zahnle   +66 more
core   +2 more sources

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

Revealing the mechanism of oxygen vacancy defect for CO2 adsorption and diffusion on CaO: DFT and experimental study

Journal of CO2 Utilization
The calcium looping is a promising technology to achieve industrial CO2 capture, and the introduction of oxygen vacancy can promote the CO2 capture reactivity of CaO-based sorbents.
Xianyao Yan, Chenyu Duan, Shuihua Yu, Bing Dai, Chaoying Sun, Huaqiang Chu   +5 more
doaj   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

Advanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner, Julian Burkhart, Kateryna Borysova, Chiara Mazzariol, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source

Selective Benzene Capture by Metal‐Organic Frameworks

Advanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) hold significant potential for capturing benzene from air emissions and hydrocarbon mixtures in liquid phases. This capability stems from their precisely engineered structures, versatile chemistries, and diverse binding interactions.
Zongsu Han, Ankit Mondal, Jiatong Huo, Yihao Yang, Hong‐Cai Zhou   +4 more
wiley   +1 more source

Properties of CO2 adsorption and migration during carbon sequestration in confined spaces

Meikuang Anquan
During the process of injecting CO2 into coal reservoirs, the diffusion and adsorption of CO2 are slow process, and the adsorption and migration time characteristics under different injection pressures have a significant impact on the design of coal seam
Xiaokun SI
doaj   +1 more source

The Impact of Gravity and Molecular Diffusion on the Compositional Gradient in Gas Reservoirs [PDF]

, 2010
Imperial Users ...
Onochie, Obidi C, Onochie, Obidi C
core  

Substrate Stress Relaxation Regulates Cell‐Mediated Assembly of Extracellular Matrix

Advanced Functional Materials, EarlyView.
Silicone‐based viscoelastic substrates with tunable stress relaxation reveal how matrix mechanics regulates cellular mechanosensing and cell‐mediated matrix remodelling in the stiff regime. High stress relaxation promotes assembly of fibronectin fibril‐like structures, increased nuclear localization of YAP and formation of β1 integrin‐enriched ...
Jonah L. Voigt, Jens Timmer, Elisabetta Ada Cavalcanti‐Adam   +2 more
wiley   +1 more source

Molecular simulation of CH4/CO2/N2 ternary mixture competitive adsorption and diffusion dynamics in tight sandstone

Natural Gas Industry B
Injecting impure CO2 for enhanced gas recovery (CO2-EGR) offers a dual benefit by improving natural gas extraction while enabling CO2 sequestration.
Shihao Xu, Cheng Cao, Yulong Zhao, Liehui Zhang, Qingping Li, Shouwei Zhou, Shaomu Wen, Yong Hu, Jinbu Li, Yunsheng Wei, Wei Xiong, Bowen Guan   +11 more
doaj   +1 more source

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

Advanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao, Christian Weinberger, Jakob Steube, Matthias Bauer, Martin Brehm, Michael Tiemann   +5 more
wiley   +1 more source