Electrochemical Oxidation of Small Molecules for Energy‐Saving Hydrogen Production

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(30)

Published: May 27, 2024

Abstract Electrochemical water splitting is a promising technique for the production of high‐purity hydrogen. Substituting slow anodic oxygen evolution reaction with an oxidation that thermodynamically more favorable enables energy‐efficient Moreover, this approach facilitates degradation environmental pollutants and synthesis value‐added chemicals through rational selection small molecules as substrates. Strategies small‐molecule electrocatalyst design are critical to electrocatalytic performance, focus on achieving high current density, selectivity, Faradaic efficiency, operational durability. This perspective discusses key factors required further advancement, including technoeconomic analysis, new reactor system design, meeting requirements industrial applications, bridging gap between fundamental research practical product detection separation. aims advance development hybrid electrolysis applications.

Language: Английский

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Tip and heterogeneous effects co-contribute to a boosted performance and stability in zinc air battery

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 662, P. 676 - 685

Published: Feb. 15, 2024

Language: Английский

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A superior zinc-air battery performance achieved by CoO/Fe₃O₄ heterostructured nanosheets

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(44), P. 5747 - 5750

Published: Jan. 1, 2024

CoO/Fe 3 O 4 nanosheets exhibit a superior rechargeable zinc-air battery (ZAB) performance of 276 mW cm −2 and stability over 600 h. The all-solid-state ZAB also affords high power density 107 .

Language: Английский

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V‐Doping Strategy Induces the Construction of the Functionally Complementary Ru₂P/V‐RuP₄ Heterostructures to Achieve Amperometric Current Density for HER

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(28)

Published: March 13, 2024

Abstract It is a great challenge to induce the formation of RuP 4 phase and realize construction metal‐rich phase/phosphorus‐rich phase‐ruthenium phosphide heterostructure by directional regulation proportion P metal atoms. The ultra‐high conductivity Ru 2 excellent ability V‐doped absorb/desorb H* are confirmed density functional theory (DFT) calculations, which laid theoretical foundation for unique P/V‐RuP structure accelerate HER reaction kinetics. This work innovatively uses V‐doping strategy with high intrinsic activity, finally construct V‐Ru x y nanosheets rich Ru/Ru heterostructures. Thanks optimization V dopants, catalyst only needs 180 mV obtain an industrial‐grade current 1 A cm −2 . In summary, this provides new idea design performance ruthenium‐based catalysts.

Language: Английский

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Boosting catalytic activity toward methanol oxidation reaction for platinum via heterostructure engineering

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 656, P. 450 - 456

Published: Nov. 15, 2023

Language: Английский

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Microwave-assisted exploration of the electron configuration-dependent electrocatalytic urea oxidation activity of 2D porous NiCo2O4 spinel

Journal of Energy Chemistry, Journal Year: 2023, Volume and Issue: 91, P. 226 - 235

Published: Dec. 28, 2023

Urea holds promise as an alternative water-oxidation substrate in electrolytic cells. High-valence nickel-based spinel, especially after heteroatom doping, excels urea oxidation reactions (UOR). However, traditional spinel synthesis methods with prolonged high-temperature lack kinetic precision, hindering the balance between controlled doping and highly active two-dimensional (2D) porous structures design. This significantly impedes identification of electron configuration-dependent sites doped 2D spinels. Herein, we present a microwave shock method for preparation NiCo2O4 spinel. Utilizing transient on-off property pulses precise structural design, non-metal (boron, phosphorus, sulfur) distinct extranuclear disparities serves straightforward examples investigation. Precise tuning lattice parameter reveals impact covalent bond strength on stability. The introduced defect levels induce unpaired d-electrons transition metals, enhancing adsorption electron-donating amino groups molecules. Simultaneously, Bode plots confirm mechanism rapid migration caused by reduced band gaps UOR activity. prepared phosphorus-doped NiCo2O4, optimal configuration control, outperforms most reported modification strategy advances understanding theoretical structure-activity mechanisms high-performance spinels UOR.

Language: Английский

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Defects and morphology engineering for constructing VS-Ni3S2@VS-Cu2S nanotube heterojunction arrays toward efficient bifunctional electrocatalyst for overall water splitting

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: 94, P. 29 - 40

Published: Feb. 28, 2024

Language: Английский

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Biomass valorization via electrocatalytic carbon–carbon bond cleavage

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: 91, P. 542 - 578

Published: Jan. 11, 2024

Language: Английский

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Interfacial electronic modulation enables a robust methanol oxidation

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 59, P. 369 - 374

Published: Feb. 7, 2024

Language: Английский

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Decoupled water electrolysis: Flexible strategy for pure hydrogen production with small voltage inputs

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: 94, P. 340 - 356

Published: March 16, 2024

Language: Английский

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