Rational Design of Color‐Pure Blue Organic Emitters by Poly‐Heteroaromatic Omni‐Delocalization

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: July 16, 2024

Abstract Current research on organic light emitters which utilize multiple resonance‐induced thermally activated delayed fluorescence (MR‐TADF) materials is gaining significant interest because of the materials’ ability to efficiently generate color‐pure blue emission. However, underlying reasons for high color purity remain unclear. It shown here that these share a common electronic basis, deduced from resonance structure considerations following Clar's rule, and termed as “poly‐heteroaromatic omni‐delocalization” (PHOD). The simple clear design rules derived PHOD concept allow extending known chemical space by new structural motifs. Based PHOD, set novel high‐efficiency with brilliant deep‐blue hue specifically designed.

Language: Английский

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Building organic-inorganic heterojunction NiCo2O4/h-BN toward artificial photosynthesis—boron as hole

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 361, P. 124678 - 124678

Published: Oct. 10, 2024

Language: Английский

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Steering CO2 electroreduction to hydrocarbons over 2D thiol-based conductive metal-organic framework

Science Bulletin, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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Heterogeneous nanoporous organic frameworks-based catalysts for electrochemical CO₂ reduction reaction

Energy Materials, Journal Year: 2025, Volume and Issue: 5(6)

Published: Feb. 24, 2025

Converting captured carbon dioxide (CO2) into valuable chemicals and fuels through electrocatalysis realizing the anthropogenic closed-carbon cycle can provide new solutions to environmental energy problems. Nanoporous organic frameworks, including metal-organic frameworks (MOFs) porous polymers (POPs), as a class of potential electrocatalysts, have made great progress in CO2 reduction reaction due their high porosity, large specific surface area, structural/functionalization diversity. In this review, recent developments pristine MOFs/POPs, MOFs/POPs composite, MOFs-/POPs-derived catalysts are discussed from aspects catalyst design, synthesis strategy, test techniques, performance validation, active sites, basic mechanism. We further summarize challenges prospects MOFs/POPs-based materials practical applications for reactions point out paths future research. This review comprehensive reference advanced design systematic cognition efficient nanoporous framework electrocatalytic reduction.

Language: Английский

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Breaking Structural Instability and Orbital Symmetry Mismatch in p-Block Metal Monochalcogenides for CO₂ Electroreduction via Noninvasive van der Waals Doping

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: April 24, 2025

P-block metal monochalcogenides (MX) adopting black phosphorus (BP)-like structures are promising electrocatalysts due to their abundant exposed sites and tunable electronic structures. However, practical application is limited by structural instability arising from lone-pair electron-induced distortions, along with an inherent orbital symmetry mismatch the frontier orbitals of small molecules (e.g., CO2), reducing activation efficiency. Here, we report a noninvasive doping strategy overcome both in p-block for efficient CO2 electroreduction, through engineering periodic van der Waals (vdW) superlattice, known as misfit superlattice. These vdW superlattices sublayer ratios contain catalytically active p-electron-rich MX sublayers conductive transition dichalcogenide current collectors. Taking [BiS]1[TaS2]1 proof-of-concept, presence ionic interactions between crucial modulating stabilizing BiS transforming Bi into higher valence state Bi(2+δ). Concurrently, interlayer induces uneven electron redistribution Bi's p-orbitals, breaking its LUMO CO2, thereby barrier. In situ characterization theoretical calculations reveal that optimized exhibit moderate adsorption *OCHO, endowing superlattice exceptional selectivity (>90%) formate electroreduction. This work advances versatile platform synergistically layered materials tailoring alignment leveraging doping, achieving optimal catalytic performance electrochemical conversion molecules.

Language: Английский

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Excellent electrochemical activities of Sn doped In2S3 with microflower morphology for CO2 reduction to Formic acid and Methanol

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 117451 - 117451

Published: June 1, 2025

Language: Английский

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Phase transfer-assisted indium recovery from spent liquid crystal display panels and its extension in preparing indium-based electrocatalysts for CO2 reduction

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 492, P. 152119 - 152119

Published: May 10, 2024

Language: Английский

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Electron-Rich Ni2+ in Ni3S2 Boosting Electrocatalytic CO2 Reduction to Formate and Syngas

Chinese Journal of Structural Chemistry, Journal Year: 2024, Volume and Issue: 43(8), P. 100359 - 100359

Published: May 29, 2024

Language: Английский

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Multi-morphology CuS catalyst for selective electrocatalytic of CO2 conversion to formate

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 176713 - 176713

Published: Sept. 1, 2024

Language: Английский

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Covalency-aided electrochemical CO₂ reduction to CO on sulfide-derived Cu–Sb

Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 12(3), P. 1840 - 1851

Published: Dec. 22, 2023

Sulfide-derived catalysts tend to be more selective HCOO − with suppression of CO production. We found that sulfur-doped Cu–Sb breaks the trend improved selectivity.

Language: Английский

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