Articles with "four electron" as a keyword



Tunable Mesoporous Porphyrin‐Based Conjugated Polymer Capable of Boosting Four‐Electron Zn‐I2 Batteries

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Published in 2024 at "Advanced Functional Materials"

DOI: 10.1002/adfm.202417283

Abstract: Porphyrin‐based conjugated polymers (PCPs) have garnered significant attention due to their exceptional conjugated π‐electron system and remarkable physical/chemical properties, further endowing them with ordered mesoscopic architecture to break the intrinsic non/microporous restriction is highly desirable,… read more here.

Keywords: tunable mesoporous; based conjugated; mesoporous porphyrin; porphyrin based ... See more keywords

When Graphitic Nitrogen Meets Pentagons: Selective Construction and Spectroscopic Evidence for Improved Four‐Electron Oxygen Reduction Electrocatalysis

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Published in 2025 at "Advanced Materials"

DOI: 10.1002/adma.202414976

Abstract: Nitrogen‐doped carbon materials have emerged as promising metal‐free electrocatalysts for oxygen reduction reaction (ORR) in fuel cells and metal‐air batteries. However, the structural inhomogeneity, particularly the coexistence of four nitrogen doping structures–pyridinic, graphitic, pyrrolic, and… read more here.

Keywords: oxygen reduction; nitrogen; electrocatalysis; four electron ... See more keywords

Four-electron reduction of dioxygen to water by a trinuclear copper complex

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Published in 2017 at "Inorganica Chimica Acta"

DOI: 10.1016/j.ica.2017.11.014

Abstract: Abstract The synthesis and characterization of a trinuclear copper complex 1 involving an amine based ligand system, tateb , are reported. Complex 1 acts as a catalyst for a four-electron four-proton reduction of dioxygen to… read more here.

Keywords: four electron; copper complex; copper; trinuclear copper ... See more keywords

Four Electron Aromaticity in η3-Allyltetrylenes Ar-E-η3-Allyl E= Si, Ge, Sn, Pb

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Published in 2021 at "Journal of Molecular Structure"

DOI: 10.1016/j.molstruc.2021.130735

Abstract: Abstract The electronic structure and the conjugation in allyltetrylenes Ar-E-η3-C3H4 (E= Si, Ge, Sn, Pb; Ar = С6H3Trip2 (1), Ph (1′)), which exhibit the unique symmetric η3-coordination among the allyl compounds of the main groups, were studied… read more here.

Keywords: electron; electron aromaticity; aromaticity allyltetrylenes; four electron ... See more keywords
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Catalytic Four-Electron Reduction of Dioxygen by Ferrocene Derivatives with a Nonheme Iron(III) TAML Complex.

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Published in 2020 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.0c02400

Abstract: A mononuclear nonheme iron(III) complex with a tetraamido macrocyclic ligand (TAML), [(TAML)FeIII]- (1), is a selective precatalyst for four-electron reduction of dioxygen by ferrocene derivatives in the presence of acetic acid (CH3COOH) in acetone. This… read more here.

Keywords: four electron; electron reduction; ferrocene derivatives; taml ... See more keywords

Mechanisms of Two-Electron and Four-Electron Electrochemical Oxygen Reduction Reactions at Nitrogen-Doped Reduced Graphene Oxide

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Published in 2019 at "ACS Catalysis"

DOI: 10.1021/acscatal.9b04106

Abstract: Doped carbon-based systems have been extensively studied over the past decade as active electrocatalysts for both the two-electron (2e–) and four-electron (4e–) oxygen reduction reactions (ORRs). H... read more here.

Keywords: four electron; reduction reactions; electron four; two electron ... See more keywords

Cathode Design via Iron-Coordinated Covalent Organic Frameworks Facilitating Four-Electron Transfer to Achieve High-Capacity Aqueous zinc-iodine Batteries.

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Published in 2025 at "ACS nano"

DOI: 10.1021/acsnano.5c09635

Abstract: The variable valence states of iodine(I) render Zn-I2 batteries an intriguing area of research. However, current Zn-I2 batteries are mostly based on I-/I0 redox chemistry. Effective strategies for activating the high-voltage I0/I+ redox couple in… read more here.

Keywords: iron coordinated; chemistry; iodine; capacity ... See more keywords

Carbon's Three-Center, Four-Electron Tetrel Bond, Treated Experimentally.

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Published in 2018 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.8b09367

Abstract: Tetrel bonding is the noncovalent interaction of group IV elements with electron donors. It is a weak, directional interaction that resembles hydrogen and halogen bonding yet remains barely explored. Herein, we present an experimental investigation… read more here.

Keywords: four electron; bond; tetrel bond; three center ... See more keywords

Realizing four-electron conversion chemistry for all-solid-state Li||I2 batteries at room temperature

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Published in 2025 at "Nature Communications"

DOI: 10.1038/s41467-025-56932-5

Abstract: Rechargeable Li||I2 batteries based on liquid organic electrolytes suffer from pronounced polyiodides shuttling and safety concerns, which can be potentially tackled by the use of solid-state electrolytes. However, current all-solid-state Li||I2 batteries only demonstrate limited… read more here.

Keywords: chemistry; capacity; state batteries; four electron ... See more keywords
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Single metal four-electron reduction by U(ii) and masked “U(ii)” compounds†

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Published in 2021 at "Chemical Science"

DOI: 10.1039/d1sc00668a

Abstract: The redox chemistry of uranium is dominated by single electron transfer reactions while single metal four-electron transfers remain unknown in f-element chemistry. Here we show that the oxo bridged diuranium(iii) complex [K(2.2.2-cryptand)]2[{((Me3Si)2N)3U}2(μ-O)], 1, effects the… read more here.

Keywords: four electron; electron reduction; chemistry; single metal ... See more keywords

Stabilized four-electron aqueous zinc–iodine batteries by quaternary ammonium complexation

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Published in 2024 at "Chemical Science"

DOI: 10.1039/d3sc06155h

Abstract: Four-electron aqueous zinc–iodine batteries (4eZIBs) leveraging the I−/I0/I+ redox couple have garnered attention for their potential high voltage, capacity, and energy density. However, the electrophilic I+ species is highly susceptible to hydrolysis due to the… read more here.

Keywords: chemistry; aqueous zinc; complexation; zinc iodine ... See more keywords