Results 71 to 80 of about 6,501 (234)

Oxygen‐Tolerant, Controlled Synthesis of Degradable and Water‐Soluble Poly(Vinyl Amide)s via Radical Ring‐Opening Copolymerization of Cyclic Dithiothreitol

open access: yesAngewandte Chemie, EarlyView.
Oxygen‐tolerant photoinduced electron/energy transfer reversible addition–fragmentation chain transfer (PET‐RAFT) polymerization enables the controlled radical ring‐opening (rROP) copolymerization of cyclic dithiothreitol (cDTT) with less‐activated vinyl monomers, affording degradable polymers with predictable molecular weights, low dispersities, and ...
Alessandro Magro   +5 more
wiley   +2 more sources

Multiscale Design of Anion Exchange Membrane‐Based Seawater Electrolysis for Sustainable Hydrogen Production

open access: yesAdvanced Energy Materials, EarlyView.
Direct seawater electrolysis using anion exchange membranes is emerging as a promising route for sustainable hydrogen production. This review summarizes multiscale design strategies from seawater chemistry and OER–ClER selectivity to catalysts, membranes, MEAs, cells, stacks, and system integration, providing a roadmap toward selective, durable, and ...
Chiho Kim   +7 more
wiley   +1 more source

Efficient OLEDs Fabricated by Solution Process Based on Carbazole and Thienopyrrolediones Derivatives

open access: yesMolecules, 2018
Four low molecular weight compounds—three of them new, two of them with carbazole (Cz) as functional group and the other two with thienopyrroledione (TPD) group—were used as emitting materials in organic light emitting diodes (OLEDs).
Luis-Abraham Lozano-Hernández   +6 more
doaj   +1 more source

Nickel‐Free Perovskite Solar Cells Enabled by Self‐Assembled Monolayers: A Pathway to Efficient and Recyclable Devices

open access: yesAdvanced Energy Materials, EarlyView.
Replacing toxic NiOx with phenyl‐substituted phosphonic‐acid carbazole monolayers (Ph‐5PACz) yields inverted perovskite solar cells that are efficient and recyclable. The nickel‐free interface reaches 25.3% efficiency and enables closed‐loop ITO recovery with near‐98% performance retention, while life‐cycle and techno‐economic analyses confirm lower ...
Yanxue Wang   +17 more
wiley   +1 more source

Fluorene‐Framework Engineering Enables Narrowband Red Multi‐Resonance Emitters for High‐Efficiency With Negligible Roll‐Off Toward BT.2020

open access: yesAngewandte Chemie, EarlyView.
σ‐Decoupled C9 fluorene‐framework topology control enables narrowband red MR emitters. SF‐BNO and PF‐BNO share the same BNO core, but differ in closed/open fluorene ring closure. SF‐BNO improves steric shielding and stability, while PF‐BNO enhances PLQY, orientation, and efficiency. Ex‐PSF and TE‐OLED architectures deliver ultra‐low efficiency roll‐off
Aradhya Rajput   +7 more
wiley   +2 more sources

Nitration of 5,11-dihydroindolo[3,2-b]carbazoles and synthetic applications of their nitro-substituted derivatives

open access: yesBeilstein Journal of Organic Chemistry, 2017
A new general approach to double nitration of 6,12-di(hetero)aryl-substituted and 6,12-unsubstituted 5,11-dialkyl-5,11-dihydroindolo[3,2-b]carbazoles by acetyl nitrate has been developed to obtain their 2,8-dinitro and 6,12-dinitro derivatives ...
Roman A. Irgashev   +3 more
doaj   +1 more source

Influence of thermal maturity on carbazole distributions in coal source rocks during compaction pyrolysis experiments

open access: yesScientific Reports
Carbazole compounds are widely used in determining the direction of petroleum migration, but the effect of thermal maturity on carbazoles is still ambiguity. In this paper, using compaction pyrolysis simulation experiments, artificial mature samples with
Jian Bao   +9 more
doaj   +1 more source

Regulating room temperature phosphorescence of carbazole quaternization pyridine in polymer through Hofmeister effect

open access: yesAggregate
Hofmeister effect is a famous physical chemistry phenomenon that was reported a hundred years ago, which firstly refers to the action of certain salts to decrease the solubility of proteins while others increase.
Runying He   +8 more
doaj   +1 more source

Neuroprotective Evaluation of Murraya Carbazoles: In Vitro and Docking Insights into Their Anti-AChE and Anti-Aβ Activities

open access: yesMolecules
The present study investigated the neuroprotective potential of the Murraya carbazole derivatives murrayanol, mahanimbine, murrayafoline A, and 9-methyl-9H-carbazole-2-carbaldehyde using in silico and in vitro assays.
Himadri Sharma   +2 more
doaj   +1 more source

Activity of bacteria and archaea in immature or lower-mature organic matter and new appraisal methods for biogas source rocks

open access: yesPetroleum Exploration and Development, 2008
The geochemical analyses of samples from both east Qaidam Basin and north Songliao Basin are implemented based on examining the influence of the activity of bacteria and archaea on the distribution of main biomarkers in saturated hydrocarbons and on the ...
An-na DING   +5 more
doaj   +1 more source

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