Results 111 to 120 of about 357,256 (297)

Decomposition of CO2, CH4 and CO2-CH4 mixed gas hydrates.

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 1997
To evaluate the possibility of CH4 exploitation in linkage with CO2 isolation, the decomposition rates of CO2, CH4 and CO2-CH4 mixed gas hydrates were obtained under isothermal isobaric conditions. The decomposition rates of CO2 and CH4 pure gas hydrates are proportional to the total amount of gas hydrate and the fugacity difference from the ...
Kazunari Ohgaki, Shinya Nakano, Takuya Matsubara, Seiji Yamanaka   +3 more
openaire   +2 more sources

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

Modified approach to estimating daily methane emissions of dairy cows by measuring filtered eructations during milking

Landbauforschung, 2019
The aim of this study was to compare metrics for quantifying enteric methane (CH4) emissions from individual cows during milking using frequent spot measurements and peak analysis methods.
Bell, Matt. J., Garnsworthy, Phil, Mallis, Dimitris, Eckard, Richard, Moate, Peter, Yan, Tianhai   +5 more
doaj   +1 more source

In Situ Elucidations of the Mechanism for Inert Molecular N2O Decomposition at Low Temperature Catalyzed by High‐Index Interfacial Exposed Co3O4

Advanced Science, EarlyView.
This study develops a co‐precipitation followed by hydrothermal synthesis strategy for synthesizing Co3O4 catalyst with multiple high‐index facets. Experiments and density functional theory calculations demonstrate that Co3+ on the (400–400) facet can form a novel active Co3+‐O* motif during the reaction.
Lei Pan, Qian Mi, Minghao Wang, Luyu Wang, Yiyang Xie, Huanjie Zhang, Ruinian Xu, Biaohua Chen   +7 more
wiley   +1 more source

Overlaid Conductive Silver Nanowire Networks on Gas Diffusion Electrodes for High‐Performance Electrochemical CO2‐to‐C2+ Conversion

Advanced Science, EarlyView.
This work presents a rational electrode design for electrochemical CO2 reduction, employing Ag nanowire networks as both current collectors and tandem catalysts. The Ag nanowires are deposited onto the catalyst layer, forming a stacked PTFE/catalyst/Ag nanowires configuration.
Jonghyeok Park, Sungjoo Kim, Yunkyoung Han, Hyunjoon Song   +3 more
wiley   +1 more source

Fate of methane in canals draining tropical peatlands

Nature Communications
Tropical wetlands and freshwaters are major contributors to the growing atmospheric methane (CH4) burden. Extensive peatland drainage has lowered CH4 emissions from peat soils in Southeast Asia, but the canals draining these peatlands may be hotspots of ...
Clarice R. Perryman, Jennifer C. Bowen, Julie Shahan, Desi Silviani P.A.B, Erin Dayanti, Yulita Andriyani, Adibtya Asyhari, Adi Gangga, Nisa Novita, Gusti Z. Anshari, Alison M. Hoyt   +10 more
doaj   +1 more source

Methane emissions from the littoral zone of Poyang lake during drawdown periods

Journal of Freshwater Ecology, 2019
Several studies have shown that lake littoral zones often support high methane (CH4) emissions. In this study, we measured CH4 emissions from two vegetation meadows in the littoral zone of Poyang Lake, China, from October 2014 to May 2015.
Sheng Liu, Yuwei Chen, Jinfu Liu
doaj   +1 more source

Vadose zone air as a biogenic source of methane in Nerja Cave system (South of Spain) [PDF]

, 2018
Subterranean air in karst cavities has often low methane contents in comparison to atmosphere and so karst systems have been considered a sink of atmospheric methane. Methane-oxidizing bacteria have been hypothesized as responsible for CH4 depletion in
Benavente, José, Carrasco-Cantos, Francisco, Del Rosal, Yolanda, Etiope, Giuseppe, Liñán-Baena, Cristina, Moriñigo-Gutierrez, Miguel Angel, Ojeda, Lucía, Tapia, Silvana, Vadillo-Perez, Iñaki   +8 more
core  

Heterointerface‑Enabled Electrocatalysis for Efficient Energy Conversion

Advanced Science, EarlyView.
Functionally distinct A/B materials can be integrated at the nanoscale to create customized heterointerfaces with tunable band alignment and charge redistribution, providing fast electron and ion transport channels as well as cooperative dual active sites.
Liuru Fang, Hsiwen Wu, Hengyue Xu, Jie Zhang   +3 more
wiley   +1 more source