Results 71 to 80 of about 142,213 (242)

Atomic Tuning of Metal‐Support Interactions for Pathway‐Selective CO2 Photoreduction on TiO2

Advanced Science, EarlyView.
Single‐atom Fe and Cu catalysts anchored on TiO2 steer photocatalytic CO2 reduction toward distinct pathways. Fe sites favor rapid *CO desorption and selective CO formation, whereas Cu sites stabilize *CHO intermediates, enabling deep reduction and C─C coupling. Combined spectroscopy and DFT calculations reveal how metal–support interactions and oxygen
Dongyun Kim, Wonjae Ko, Byoung‐Hoon Lee, Sanghoon Kim, Yun Do Kim, Hyunsoo Ahn, Yoon Jung, Chan Woo Lee, Kug‐Seung Lee, Eunhee Gong, Junho Lee, Minho Kim, Taeghwan Hyeon, Su‐Il In   +13 more
wiley   +1 more source

High‐Throughput Screening and Interpretable Machine Learning for Rational Design of Bimetallic Catalysts for Methane Activation

Advanced Science, EarlyView.
ABSTRACT Methane's efficient catalytic removal is vital for sustainable development. Bimetallic catalysts, though promising for methane activation, pose a design challenge due to their complex compositional space. This work introduces an integrated framework that combines high‐throughput density functional theory (DFT) and interpretable machine ...
Mingzhang Pan, Tian Zhang, Jiawei Dong, Yubao Xie, Kaifeng Zhong, Wei Guan, Haiqiao Wei, Changcheng Fu, Yaqiong Su   +8 more
wiley   +1 more source

De-oxygenation of CO2 by using Hydrogen, Carbon and Methane over Alumina-Supported Catalysts [PDF]

, 2012
The de-oxygenation of CO2 was explored by using hydrogen, methane, carbon etc., over alumina supported catalysts. The alumina-supported ruthenium, rhodium, platinum, molybdenum, vanadium and magnesium catalysts were first reduced in hydrogen atmosphere ...
Raskar, R.Y., Kale, K.B., Gaikwad, A.G.
core   +2 more sources

Introducing the Manufacturing Digital Passport (MDP): A New Concept for Realising Digital Thread Data Sharing in Aerospace and Complex Manufacturing

Systems
In the current data-driven era, effective data sharing is set to unlock billions in value for aerospace and complex manufacturing and their supply chains by enhancing product quality, boosting manufacturing and operational efficiency, and generating new ...
Mohammed M. Mabkhot, Roy S. Kalawsky, Amer Liaqat   +2 more
doaj   +1 more source

Large spatiotemporal variability in CH4 emissions from a subtropical coastal creek affected by hydrological and biogeochemical processes in Southeast China

Creeks are widespread in coastal areas and have the potential to emit substantial greenhouse gases (GHG), as they often directly receive abundant organic matter from neighboring areas. However, the high-resolution spatial variations in GHG measurement in
Lai, Derrick, Yang, Hong, Chun, Kwok, Tong, Chuan, Sun, Dongyao, Guo, Pingping, Yanga, Ping, Huang, Jiafang, Chen, Guanpeng, Wang, Lihua, Wang, Yingzi   +10 more
core   +1 more source

Porous Aluminophosphates as Adsorbents for the Separation of CO2/CH4 and CH4/N2 Mixtures – a Monte Carlo Simulation Study [PDF]

, 2018
Aluminophosphates with zeolite-like topologies (AlPOs) have received considerable attention as potential adsorbents for use in the separation of methane-containing gas mixtures. Such separations, especially the removal of carbon dioxide and nitrogen from
Michael, Fischer, Michael Fischer (4988408), Michael Fischer   +2 more
core   +1 more source

Construction of Sabatier Volcanoes for CO2 Hydrogenation to C1‐2 Oxygenates Using Data‐Efficient Machine Learning

Advanced Science, EarlyView.
A new data‐efficient framework combining DFT calculations, a neural network model, and automated graph analysis of catalytic reaction networks is proposed and applied to CO2 hydrogenation on transition metal nanoparticles. The analysis shows how efficient C2 oxygenate production requires a balance between CHx formation, C–C coupling, protonation, and ...
Mikhail V. Polynski, Sergey M. Kozlov
wiley   +1 more source

Quantitative experimental investigation of CO2 enhancement of the desorption rate of adsorbed CH4 in coal

Energy Reports, 2020
The injection of CO2 into a coal seam can effectively improve the recovery efficiency of coalbed methane. Existing CO2-enhanced coalbed methane(ECBM) is mainly focused on improving the physical recovery efficiency of free CH4. In macro experiments, it is
Gang Bai, Yanhang Jiang, Xueming Li, Xihua Zhou, Ying Chen, Liqiang Chang, Jian Sun   +6 more
doaj   +1 more source

Validation of version-4.61 methane and nitrous oxide observed by MIPAS [PDF]

, 2009
peer reviewedThe ENVISAT validation programme for the atmospheric instruments MIPAS, SCIAMACHY and GOMOS is based on a number of balloon-borne, aircraft, satellite and ground-based correlative measurements.
S. Payan, E. Mahieu, Te, Yao, Notholt, J., De Mazière, Martine, Mencaraglia, F., Glatthor, N., J. Kuttippurath, Bianchini, G., Glatthor, Norbert, G. Maucher, Butz, Andre, Pirre, M., Oelhaf, Hermann, Keim, Corneli, Payne, V., Camy-Peyret, Claude C., Kuellmann, H., Volk, M. C., N. Huret, Huret, N., Oelhaf, H., M. C. Volk, H. Oelhaf, D. Smale, Payan, Sébastien, C. Vigouroux, Engel, Andreas, Wood, Stephen, T. Blumenstock, Mencaraglia, Francesco, A. Engel, V. Velazco, Grunow, K., Wetzel, Gerald, P. Jeseck, Notholt, Justus, Butz, A., M. Pirre, Wetzel, G., Vigouroux, C., N. Jones, Raspollini, P., Mikuteit, Sabine, Huret, Nathalie, Velazco, Voltaire, Pirre, Michel, G. Wetzel, Y. Te, Kuttippurath, Jayanarayanan, Raspollini, Piera, Piccolo, Chiara, Blumenstock, T., De Maziere, M., Mahieu, E., Grunow, Katja, Redaelli, G., Duchatelet, P., Payne, Vivienne, C. Keim, Cortesi, Ugo, Engel, Anja, F. Mencaraglia, Cortesi, U., Maucher, G., Camy-Peyret, C., Te, Y., S. Wood, V. Payne, Mahieu, Emmanuel, C. Camy-Peyret, Smale, D., Kuttippurath, J., Mikuteit, S., Redaelli, Gianluca, S. Mikuteit, H. Kuellmann, P. Raspollini, C. CAMY PEYRET, Duchatelet, Pierre, Kuellmann, Harry, Bianchini, Giovanni, Maucher, Guido, M. De Mazière, Stiller, G., Wood, S., Smale, Dan, K. Grunow, Bracher, A., A. Bracher, Jones, N., Stiller, Gabriele, Velazco, V., Blumenstock, Thomas, U. Cortesi, A. Butz, G. Stiller, J. Notholt, Payan, S., Volk, C.-Michael, P. Duchatelet, Jones, Nicholas, Engel, A., G. Bianchini, Keim, C., Bracher, Astrid, PAYAN, S, G. Redaelli, Vigouroux, Corinne, Piccolo, C., N. Glatthor, C. Piccolo, Volk, C. M., Jeseck, Pascal, Jeseck, P.   +114 more
core   +2 more sources

A Global Methane Observation System to Reduce Uncertainty for Anthropogenic and Natural Sources and Sinks for Detecting and Attributing Climate Feedbacks

Advanced Science, EarlyView.
Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais, S. Peng, J. Chang, F. Li, Q. Zhu, K. Yuan, G. Hugelius, H. Li, Y. Cai, F. Chevallier, K. Tibrewal, E. A. Kort, K. Arndt, J. Watts, B. Buma, N. Besic, P. I. Palmer, H. Cadillo‐Quiroz, E. Euskirchen, M. J. Gondwe, A. Hoyt, R. Jackson, S. Malone, D. Monteverde, S. Natali, M. Ramonet, C. Rey‐Sanchez, L. B. Sagang, E. A. G. Schuur, R. Vargas, R. Varner, Z. Zhang, B. Poulter   +32 more
wiley   +1 more source