Rational Design of Co(II)‐Pyridine‐Decorated Reduced Phosphomolybdate Photocatalysts for Efficient Aniline Oxidation under Mild Conditions

Chinese Journal of Chemistry, Journal Year: 2024, Volume and Issue: 42(23), P. 2970 - 2978

Published: Aug. 21, 2024

Comprehensive Summary The conversion of aniline to nitrosobenzene (NSB), a key step in the synthesis important chemicals, demands development environmentally friendly photocatalysts that operate under mild conditions. This process is driven by need for sustainable methods, given toxic nature and its central role production dyes, pharmaceuticals, agricultural chemicals. study reports on three reduced phosphomolybdate compounds with Co(II) centers polypyridine ligands, which show great potential as oxidation NSB. uses 30% H 2 O oxidant sole catalysts, achieving high rates selectivity without additional additives or photosensitizers. integration multidentate ligands {P 4 Mo 6 } clusters significantly reduces band gap, facilitating visible‐light‐driven photocatalysis. adsorption interaction between coordinated water molecules Co ions found enhance rate aniline, finding supported DFT analyses.

Language: Английский

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Enhanced Electrocatalytic Hydrogen Peroxide Production via a CuWO₄/WO₃ Heterojunction with High Selectivity and Stability

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 12, 2025

The electrocatalytic conversion of oxygen to hydrogen peroxide offers a promising pathway for sustainable energy production. However, the development catalysts that are highly active, stable, and cost-effective synthesis remains significant challenge. In this study, novel polyacid–based metal–organic coordination compound (Cu–PW) was synthesized using hydrothermal approach. Cu–PW served as precursor construct composite electrocatalyst featuring heterointerface between CuWO4 WO3 (CuWO4/WO3) through pyrolysis. CuWO4/WO3 heterojunction exhibits an impressive H2O2 selectivity 91.84% at 0.5 V, marking 19.65% improvement compared pristine Cu–PW. Furthermore, catalyst demonstrates exceptional stability, maintaining continuous operation 29 h. At 0.1 it delivers yield 1537.8 mmol g–1 h–1, with Faraday efficiency (FE) 85%. Additionally, effectively degrades methyl blue, achieving 95% removal from aqueous system within 30 min. Theoretical analysis further corroborates high electroactivity structure. Cu–O–W bridge formed during reaction facilitates interfacial electron transport enhances role W–O bond in proton adsorption transfer kinetics. This strong coupling promotes formation *OOH intermediates, thereby favoring generation. Hence, as-prepared great potential efficient green peroxide, exhibiting two-electron reduction catalyst. work new approach fabricating selectivity, paving way production, significantly reducing reliance on conventional anthraquinone process.

Language: Английский

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A series of four-substituted polyoxometalate-thiacalix[4]arene-based materials for the efficient photocatalytic reduction of Cr(vi)

Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(10), P. 3011 - 3020

Published: Jan. 1, 2024

Three isostructural polyoxometalate-thiacalix[4]arene-based materials were employed as efficient photocatalysts for the reduction of Cr( vi ).

Language: Английский

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The Versatile Applications of Calix[4]resorcinarene-Based Cavitands

Molecules, Journal Year: 2024, Volume and Issue: 29(24), P. 5854 - 5854

Published: Dec. 11, 2024

The advancement of synthetic host–guest chemistry has played a pivotal role in exploring and quantifying weak non-covalent interactions, unraveling the intricacies molecular recognition both chemical biological systems. Macrocycles, particularly calix[4]resorcinarene-based cavitands, have demonstrated significant utility receptor design, facilitating creation intricately organized architectures. Within realm macrocycles, these cavitands stand out as privileged scaffolds owing to their adaptability, excellent topological structures, unique properties. So far, extensive investigations been conducted on various applications cavitands. In this review, we will elaborate diverse functions, including catalysis, separation purification, polymeric materials, sensing, battery well drug delivery. This review aims provide holistic understanding multifaceted roles across applications, shedding light contributions advancing field supramolecular chemistry.

Language: Английский

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Microwave-assisted synthesis, characterization, and surfactant interaction studies of water-soluble tetrasulfonatomethylcalix[4]resorcinarene [WSC4R]

Journal of Inclusion Phenomena and Macrocyclic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: May 28, 2025

Language: Английский

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Four Anderson– and isopolymolybdate–viologen photochromic materials for UV detection, inkless erasable printing, and ammonia detection

Polyhedron, Journal Year: 2023, Volume and Issue: 247, P. 116742 - 116742

Published: Nov. 13, 2023

Language: Английский

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A resorcin[4]arene-based MOF as a Lewis acid catalyst for the CO2 coupling reaction

Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: unknown, P. 113341 - 113341

Published: Oct. 1, 2024

Language: Английский

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Microwave-Assisted Synthesis and Characterization of Calix[4]resorcinarenes

Russian Journal of Organic Chemistry, Journal Year: 2024, Volume and Issue: 60(10), P. 2014 - 2019

Published: Oct. 1, 2024

Language: Английский

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