Results 141 to 150 of about 45,582 (306)

Rapidly Diversifying Hydrogen‐Bonded Organic Frameworks With Permanent Porosity

Angewandte Chemie, EarlyView.
This article reviews diversifying hydrogen‐bonded organic frameworks (HOFs) with permanent porosity reported over the past 15 years, based on the molecular structures of their constituent tectons. Furthermore, several distinctive aspects and concepts are described, such as permanent porosity, isostructural (isoreticular) HOFs, and multicomponent mixed ...
Taito Hashimoto, Ichiro Hisaki
wiley   +2 more sources

Data‐Guided Photocatalysis: Supervised Machine Learning in Water Splitting and CO2 Conversion

Advanced Intelligent Discovery, EarlyView.
This review highlights recent advances in supervised machine learning (ML) for photocatalysis, emphasizing methods to optimize photocatalyst properties and design materials for solar‐driven water splitting and CO2 reduction. Key applications, challenges, and future directions are discussed, offering a practical framework for integrating ML into the ...
Paul Rossener Regonia, Christian Mark Pelicano   +1 more
wiley   +1 more source

Force‐Induced Control of Circularly Polarized Luminescence With Rotaxane Architecture

Angewandte Chemie, EarlyView.
Force‐induced reversible on/off switching of circularly polarized luminescence is achieved with a rotaxane‐based supramolecular mechanophore. The mechanophore, featuring a chiral helicene luminophore, is incorporated as a first network cross‐linker into a double‐network organogel.
Keigo Nonaka, Takumi Kuroda, Kota Masuda, Toshiki Nishitani, Masaki Enokido, Makoto Tsurui, Yuichi Kitagawa, Yasuchika Hasegawa, Keiichi Noguchi, Koji Nakano, Yoshimitsu Sagara   +10 more
wiley   +2 more sources

CO2‐Induced Reverse Lattice Oxygen Spillover on Pt/CeO2 Enables Sulfur‐Resistant Dry Reforming of Methane

Angewandte Chemie, EarlyView.
A critical step, dry reforming of methane (DRM) converts biogas into useful syngas. Yet trace H2S in biogas rapidly poisons DRM catalysts, limiting practical use. We developed a robust Pt/CeO2 catalyst sustaining DRM activity via CO2‐induced reverse lattice oxygen spillover in H2S‐rich environments.
Jun Liu, Jiang Deng, Jiajia Zheng, Mohsen Beladi Mousavi, Chunning Sun, Jin Li, Xin Chen, Yongjie Shen, Haotian Huang, Ming Xie, Emiliano Cortés, Dengsong Zhang   +11 more
wiley   +1 more source

Metal‐free Hydrogen Generation from Seawater and Silicon Waste: A Circular Approach

Angewandte Chemie, EarlyView.
Hydrogen was rapidly generated directly from untreated seawater and polymeric Si waste without any transition metal catalyst. The in situ generated polymeric cross‐linked Si resin was completely depolymerized under mild conditions into chloro‐silane monomers.
Mustapha Hamdaoui, Anja Steinmaurer, Philipp Jernej, Daniel Legenstein, Peter Hartmann, Adrian Daniel Boese, Katalin Barta   +6 more
wiley   +2 more sources

ON METHANE EMISSION IN THE ARCTIC [PDF]

Actual Problems of Oil and Gas, 2018
V.V. Adushkin, V.P. Kudryavtsev
openaire   +1 more source

Cycloazulenylen

Angewandte Chemie, EarlyView.
Ein ausschließlich aus Azulen‐Untereinheiten aufgebauter gespannter Makrocyclus mit der Bezeichnung [6]Cycloparaazulenylen ([6]CPA) wird vorgestellt. Der Makrocyclus weist für ein Azulensystem eine bemerkenswert kleine HOMO–LUMO‐Energielücke, eine durch die Ringspannung hervorgerufene bathochrome Verschiebung der Absorption sowie ein ungewöhnliches ...
Clara Douglas, Josefine Sprachmann, David Dunlop, Joël Schlecht, Jörg Neudörfl, Tommy Wachsmuth, Julian Frost, Tomáš Slanina, Oliver Dumele   +8 more
wiley   +1 more source

Waterfalls enhance regional methane emissions by enabling dissolved methane to bypass microbial oxidation

Communications Earth & Environment
River waters are significant sources of atmospheric methane whose local emissions increase with river slope and turbulence. However, when integrated regionally, the amount of dissolved methane released to the atmosphere is uninfluenced by local changes ...
Rebecca L. Rust, Annastasia Frizzell, John D. Kessler   +2 more
doaj   +1 more source

Quantification of methane emissions from typical natural gas stations using on-site measurement technology

Journal of Pipeline Science and Engineering
Natural gas transmission systems are the main source of methane emissions in the oil and gas industry. Methane, as the second most potent greenhouse gas, makes a strong contribution to climate change.
Wenlong Jia, Pingyang Jia, Li Gu, Lei Ren, Yang Zhang, Honghuan Chen, Xia Wu, Wei Feng, Jiujiang Cai   +8 more
doaj   +1 more source

Methane emission rate study in a deep Pocahontas No. 3 coalbed mine in conjunction with drilling degasification holes in the coalbed [PDF]

"A degasification experiment was conducted in a Pocahontas No. 3 Coalbed mine in Virginia. It involved (1) drilling holes in the coalbed in the outside headings of a set of five being developed in virgin area and (2) conducting a methane emission rate ...

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