Results 121 to 130 of about 266,020 (304)

Real‐Time Investigation of Interfacial Evolution in Electrochemical Energy Storage Systems via EQCM

open access: yesAdvanced Science, EarlyView.
Understanding the electrode/electrolyte interface (EEI) is crucial for supercapacitors and batteries. EQCM, by enabling real‐time monitoring of mass changes during charge–discharge cycles, has evolved into a vital method for analysis of EEI. It provides important insights into charge‐storage mechanisms, electrode structural evolution, ion‐transfer ...
Zixuan Wang, Situo Cheng, Guang Feng
wiley   +1 more source

Continuous‐Flow Microfluidic Synthesis Enhances C2+ Selectivity for Cu2O Catalysts

open access: yesAdvanced Science, EarlyView.
Microfluidic devices are used to prepare Cu2O nanoparticles under laminar flow conditions, which exhibit enhanced selectivity in the CO2‐to‐C2+ reaction due to their nanoporosity and high defect concentration. Cu2O prepared using standard solution methods displays decreased CO2‐to‐C2+ selectivity due to the absence of similar properties. Altogether, we
Carlota Casas   +16 more
wiley   +1 more source

Sedimentary patterns and exploitation practices of tight-sand gas reservoirs in coal measure strata: A case study of the 3rd submember of the second member of the Permian Shanxi Formation in the Daning-Jixian block

open access: yesMeitian dizhi yu kantan
BackgroundThe third submember of the second member of the Permian Shanxi Formation (also referred to as the Shan 23 submember) in the Daning-Jixian block along the eastern margin of the Ordos Basin is identified as a primary target layer for tight-sand ...
Lei ZHANG   +9 more
doaj   +1 more source

The Preparatory (Anti)Bonding Character of Molecular Orbitals

open access: yesAdvanced Science, EarlyView.
Herein, a concept to qualitatively predict changes in bond dissociation energies upon reduction or oxidation of molecular compounds is introduced. Changing the population of so‐called preparatory molecular orbitals influences how molecular fragments are relaxing after bond cleavage, which is shown for isolated organometallic aluminum compounds as well ...
Jonas O. Wenzel   +10 more
wiley   +1 more source

Development of catalytic membrane reactor for the production of ethylene from natural gas.Based on oxidative coupling of methane technology. [PDF]

open access: yes, 2007
Malaysia mempunyai banyak simpanan gas asli, di mana metana sebagai komponen utama boleh dipergunakan dan ditukar kepada produk yang lebih bernilai seperti metanol, formaldehid, syngas, bahan api bercecair dan etilena.
Bhatia, Subhash, Mohamed, Abdul Rahman
core  

Chemoselective Metabolomics via a Modular Reactivity‐Encoding Platform

open access: yesAdvanced Science, EarlyView.
Conventional LC–MS underrepresents numerous metabolites due to heterogeneous ionization efficiencies and matrix interference. Here, we introduce a modular reactivity‐encoding platform (MREP) comprising four alkyne‐tagged probes that selectively derivatize key functional groups, followed by unified click‐chemistry capture to eliminate matrix components ...
Xin Tao   +10 more
wiley   +1 more source

Key technologies of efficient extraction of coalbed methane (gas) in Guizhou coal mine area

open access: yesMeitan kexue jishu
Under the background of “double carbon” goal, how to solve the problem of frequent gas over-limit in high gas mine and efficient surface extraction of coalbed methane in coal mine area, we must find ways to realize efficient cooperative development of ...
Wang YI   +9 more
doaj   +1 more source

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

open access: yesAdvanced 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   +32 more
wiley   +1 more source

Methane management in sewage treatment [PDF]

open access: yes, 2011
Poly-di-methyl-siloxane (PDMS) hollow fibre membrane modules were designed and built for the specific de-gassing of real and synthetic process liquids to understand: (i) the feasibility of operation; and (ii) classify the mass transfer characteristics to
Cookney, Joanna
core  

Influence of rock mechanics characteristics on fracturing and development strategies in the Zhengzhuang Block

open access: yesMeitan kexue jishu
The rock mechanical parameters of coal reservoirs play an important role in controlling the formation and evolution of natural fractures and the propagation of artificial fractures, and are the key factors affecting the fracturing transformation of coal ...
Cong ZHANG   +8 more
doaj   +1 more source

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