Advancing H₂O₂ electrosynthesis: enhancing electrochemical systems, unveiling emerging applications, and seizing opportunities

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(16), P. 8137 - 8181

Published: Jan. 1, 2024

Hydrogen peroxide (H

Language: Английский

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Mesoporous Boron‐Doped Carbon with Curved B₄C Active Sites for Highly Efficient H₂O₂ Electrosynthesis in Neutral Media and Air‐Supplied Environments

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 15, 2025

Abstract Hydrogen peroxide (H 2 O ) electrosynthesis via the 2e − oxygen reduction reaction (ORR) is considered as a cost‐effective and safe alternative to energy‐intensive anthraquinone process. However, in more practical environments, namely, use of neutral media air‐fed cathode slow ORR kinetics insufficient supply pose significant challenges efficient H production at high current densities. In this work, mesoporous B‐doped carbons with novel curved B 4 C active sites, synthesized carbon dioxide (CO using pore‐former agent, simultaneously achieve excellent activity improved mass transfer properties are introduced. Through combination experimental analysis theoretical calculations, it confirmed that configuration, formed by mesopores carbon, demonstrates superior selectivity for due its weaker interaction *OOH intermediates compared planar media. Moreover, facilitate suppress hydrogen evolution reaction, achieving Faradaic efficiency 86.2% 150 mA cm −2 under air‐supplied conditions, along an impressive utilization 93.6%. This approach will provide route catalyst design environment.

Language: Английский

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Smart Flow Micro‐Reaction Device Integrated with Oxygen Reduction Catalysts for Gaseous Electrochemiluminescence Sensing

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 14, 2025

Abstract The sensitive detection of low‐concentration gases has significant implications for environmental monitoring, clinical diagnosis, and other fields scientific inquiry. Electrochemiluminescence (ECL) is a widely accepted analytical technique known its high sensitivity, precision, minimal background interference. Nevertheless, it rarely been documented in the context gas‐oriented sensing. This study presents an innovative paradigm gas sensing, which integrates oxygen reduction reactions (ORR) diffusion electrode (GDE) into flow micro‐reaction device. integration aims to optimize mass transfer, ensure adequate electrochemical contact, facilitate efficient electron ultimately enhance ECL emission. viability this effective situ sensing strategy under mild conditions without pre‐treatments substantiated by experimental model calculation evidence. homemade device enables quantification formaldehyde with limit determination (LOD) as low 12.7 ppb paves way universal gaseous

Language: Английский

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Enhancing carbonized wood cathodes for Electro-Fenton efficiency: Structural evolution contributions to H2O2 generation

Industrial Crops and Products, Journal Year: 2025, Volume and Issue: 231, P. 121165 - 121165

Published: May 9, 2025

Language: Английский

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Conversion of acrylic/wool fibers to N-doped carbon materials for adsorption and electrochemical oxygen reduction to hydrogen peroxide

Surfaces and Interfaces, Journal Year: 2025, Volume and Issue: unknown, P. 106756 - 106756

Published: May 1, 2025

Language: Английский

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Structure adjustment on Fe-based electrocatalyst to regulate oxygen reduction reaction selectivity for Zn-air battery and H2O2 production

Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: 168, P. 112914 - 112914

Published: July 27, 2024

Language: Английский

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