Results 71 to 80 of about 1,206,138 (311)

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

open access: yesAdvanced Functional Materials, Volume 36, Issue 43, 29 May 2026.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies   +8 more
wiley   +1 more source

New Directions in Transition Metal Catalyzed Carbonylation Chemistry

open access: yesCHIMIA, 2018
Carbon monoxide (CO) represents an important C1-building block for the construction of some of the most fundamental chemical functionalities carrying a carbon–oxygen double bond.
Dennis U. Nielsen   +2 more
doaj   +1 more source

Rational Fine‐Tuning of MOF Pore Metrics: Enhanced SO2 Capture and Sensing with Optimal Multi‐Site Interactions

open access: yesAdvanced Functional Materials, Volume 36, Issue 43, 29 May 2026.
A pore tuning strategy to amplify the multi‐site MOF‐SO2 interactions is proposed to achieve an enhanced trace SO2 capture and chemiresistive sensing in highly stable isostructural DMOFs by annelating benzene rings. This work provides a facile strategy to achieve tailor‐made stable MOF materials for specific multifunctional applications.
Shanghua Xing   +9 more
wiley   +1 more source

Spatial-temporal evolution and damage mechanism of pore-throat networks in unconsolidated sandstones during seawater reinjection based on in-situ CT

open access: yesApplied Ocean Research
Seawater is widely used as an injection fluid in offshore subsurface systems because of its stable availability and low operational cost. However, direct pore-scale evidence of structural evolution and seepage degradation in unconsolidated sandstones ...
Huiyong Zeng   +6 more
doaj   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

open access: yesAdvanced Functional Materials, Volume 36, Issue 43, 29 May 2026.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner   +4 more
wiley   +1 more source

A new simulation approach for hydraulic fracture network of deep coalbed methane reservoirs with equivalent parameter method

open access: yesEnergy Exploration & Exploitation
Cleat systems are widely distributed within deep coalbed methane (CBM) reservoirs. The significant uncertainty regarding the distribution and density of these cleat systems complicates accounting for their impact on hydraulic fracture propagation.
Guanglong Sheng   +6 more
doaj   +1 more source

Recent advances in CO2 hydrogenation to ethanol over non-precious metal catalysts

open access: yesSustainable Chemistry for Energy Materials
In response to the rising atmospheric CO2 concentration resulting from excessive consumption of fossil energy, the hydrogenation of CO2 to ethanol presents a promising pathway for carbon resource utilization.
Haokai Niu, Xing Yu, Peng Gao, Ph. D.
doaj   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

open access: yesAdvanced Functional Materials, Volume 36, Issue 43, 29 May 2026.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska   +7 more
wiley   +1 more source

Inverse ceria-nickel catalyst for enhanced C–O bond hydrogenolysis of biomass and polyether

open access: yesNature Communications
Regulating interfacial electronic structure of oxide-metal composite catalyst for the selective transformation of biomass or plastic waste into high-value chemicals through specific C–O bond scission is still challenging due to the presence of multiple ...
Zelun Zhao   +8 more
doaj   +1 more source

Nonsmooth frameworks for an extended Budyko model

open access: yes, 2017
In latitude-dependent energy balance models, ice-free and ice-covered conditions form physical boundaries of the system. With carbon dioxide treated as a bifurcation parameter, the resulting bifurcation diagram is nonsmooth with curves of equilibria and ...
Barry, Anna M.   +2 more
core   +1 more source

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