Results 51 to 60 of about 592,816 (305)

Nucleation‐Controlled Reconstruction of CuOx for Selective CO2 Electroreduction

Advanced Functional Materials, EarlyView.
The ratio of oxygen vacancies (Ov) and exposed Cu2O (111)/(200) of CuOx precatalyst is modulated by nucleation control of Cu(OH)2 precursor. Low Ov ratio and high ratio of Cu2O (111)/(200) in slow‐nucleated CuOx reconstructs to high‐coordinated oxide‐derived copper (OD‐Cu) during electrochemical CO2 reduction reaction (CO2RR) and exhibits enhanced ...
Ying Ying Ch'ng, Zhipeng Ma, Ming Zhang, Shujie Zhou, Varun Kundi, Priyank Vijaya Kumar, Wenyu Zhong, Yuwei Yang, Jitraporn Vongsvivut, Qinfen Gu, Xiaoxuan Luo, Lixue Jiang, Rahman Daiyan, Zhaojun Han, Rose Amal   +14 more
wiley   +1 more source

Design and Application of Fluid Pump Drainage Gas Recovery Technology in Dongsheng Gas Field

Shiyou jixie
To effectively address the bottleneck problems of high injection pressure and high energy consumption of hydraulic jet pump technology， it is urgent to improve and optimize the drainage gas recovery technology of high water-production gas wells.
Zhou Ruili, Luo Yi, Qiao Qianyu, Wu Weiran, Yang Feishan, Zhao Rundong, Xue Zhaoyang   +6 more
doaj   +1 more source

An analysis of the global atmospheric methane budget under different climates [PDF]

, 2013
Methane is the second most important gas after CO$_{2}$ in the atmosphere in terms of radiative forcing. It also plays an important role in tropospheric chemistry and influences the oxidation capacity of atmosphere and amount of CO, O$_{3}$ and water ...
Basu, Abhijit
core  

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

Advanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

Impact of Dynamic Elastic Modulus on Coal Permeability: Modeling and Analysis

Geofluids, 2022
Coalbed methane is a kind of high-quality clean energy. The underground gas drainage can achieve the efficient utilization of coalbed methane. Permeability is the key factor affecting gas drainage.
Jia Kong, Baiquan Lin, Chuanjie Zhu, Ting Liu, Xiangguo Kong   +4 more
doaj   +1 more source

Sensitive detection of methane at 3.3 μm using an integrating sphere and interband cascade laser [PDF]

, 2016
Detection of methane at 3.3μm using a DFB Interband Cascade Laser and gold coated integrating sphere is performed. A 10cm diameter sphere with effective path length of 54.5cm was adapted for use as a gas cell.
Davis, Nicholas M., Francis, Daniel, Hodgkinson, Jane, Tatam, Ralph P.   +3 more
core   +1 more source

Graphene Nanosheet‐Based Mixed Proton‐Electron Conducting Membranes for Efficient Hydrogen Purification

Advanced Functional Materials, EarlyView.
A monolayer graphene/phosphoric‐acid mixed proton‐electron conducting membrane combines proton‐conducting nanoconfined acid channels with electron‐conducting graphene nanosheets for efficient high‐temperature hydrogen purification. The membrane achieves nearly 100% H2/CO2 selectivity and 69 GPU hydrogen permeance at 250°C, arising from synergistic ...
Kaiqiang He, Fanmengjing Wang, Dehua Dong, Yuan Kang, Zhikao Li, Jacek J. Jasieniak, Paul A. Webley, Douglas R. MacFarlane, Huanting Wang   +8 more
wiley   +1 more source

Molecule mapping of HR8799b using OSIRIS on Keck: Strong detection of water and carbon monoxide, but no methane

, 2018
Context. In 2015, Barman et al. (ApJ, 804, 61) presented detections of absorption from water, carbon monoxide, and methane in the atmosphere of the directly imaged exoplanet HR8799b using integral field spectroscopy (IFS) with OSIRIS on the Keck II ...
de la Roche, D. J. M. Petit dit, Hoeijmakers, H. J., Snellen, I. A. G.   +2 more
core   +1 more source

Oxidative coupling of methane in a mixed-conducting perovskite membrane reactor [PDF]

, 1995
Ionic-electronic mixed-conducting perovskite-type oxide La0.6Sr0.4Co0.8Fe0.2O3 was applied as a dense membrane for oxygen supply in a reactor for methane coupling.
Bouwmeester, H.J.M., Elshof, J.E. ten, Verweij, H.   +2 more
core   +2 more sources

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source