Construction of a recyclable foam photocatalyst for boosted photothermal-assisted photocatalytic H2 production

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 178819 - 178819

Published: Jan. 1, 2025

Language: Английский

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Rational construction of S-scheme CdS quantum dots/In2O3 hollow nanotubes heterojunction for enhanced photocatalytic H2 evolution

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Journal Year: 2025, Volume and Issue: 70, P. 333 - 340

Published: March 1, 2025

Language: Английский

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Dual template-induced construction of three-dimensional porous SiO2/NC/Co-CNTs heterostructure with highly dispersed active sites for efficient oxygen evolution reaction

Tungsten, Journal Year: 2023, Volume and Issue: 6(3), P. 585 - 595

Published: Dec. 6, 2023

Language: Английский

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MoS2 as a cocatalyst applied in advanced oxidation processes for enhancing degradation of organic pollutants: a review

Tungsten, Journal Year: 2023, Volume and Issue: 6(3), P. 473 - 487

Published: Dec. 15, 2023

Language: Английский

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NiCo layered double hydroxides/NiFe layered double hydroxides composite (NiCo-LDH/NiFe-LDH) towards efficient oxygen evolution in different water matrices

Chemosphere, Journal Year: 2023, Volume and Issue: 345, P. 140472 - 140472

Published: Oct. 16, 2023

Language: Английский

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In Situ Amorphization of Electrocatalysts

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

Published: June 26, 2024

Abstract Electrocatalysis represents an efficient and eco‐friendly approach to energy conversion, enabling the sustainable synthesis of valuable chemicals fuels. The deliberate engineering electrocatalysts is crucial improving efficacy scalability electrocatalysis. Notably, occurrence in situ amorphization within has been observed during various electrochemical processes, influencing conversion efficiency catalytic mechanism understanding. Of note, dynamic transformation catalysts into amorphous structures complex, often leading configurations. Therefore, revealing this process understanding function species are pivotal for elucidating structure‐activity relationship electrocatalysts, which will direct creation highly catalysts. This review examines mechanisms behind structure formation, summarizes characterization methods detecting species, discusses strategies controlling (pre)catalyst properties conditions that influence amorphization. It also emphasizes importance spontaneously formed oxidation reduction reactions. Finally, it addresses challenges electrocatalysts. aiming guide efficient, selective, stable reactions, inspire future advancements field.

Language: Английский

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Rational Photodeposition of Cobalt Phosphate on Flower-like ZnIn2S4 for Efficient Photocatalytic Hydrogen Evolution

Molecules, Journal Year: 2024, Volume and Issue: 29(2), P. 465 - 465

Published: Jan. 17, 2024

The high electrons and holes recombination rate of ZnIn2S4 significantly limits its photocatalytic performance. Herein, a simple in situ photodeposition strategy is adopted to introduce the cocatalyst cobalt phosphate (Co-Pi) on ZnIn2S4, aiming at facilitating separation electron–hole by promoting transfer photogenerated ZnIn2S4. study reveals that composite catalyst has superior performance than blank In particular, loaded with 5% Co-Pi (ZnIn2S4/5%Co-Pi) best activity, H2 production reaches 3593 μmol·g−1·h−1, approximately double alone. Subsequent characterization data demonstrate introduction facilitates holes, thus improving efficiency carrier separation. This investigation focuses rational utilization high-content rich cocatalysts earth design low-cost efficient catalysts achieve sustainable hydrogen evolution.

Language: Английский

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Heterophase junction engineering-induced Co spin-state modulation of CoSe2 for large-current hydrogen evolution reaction

Rare Metals, Journal Year: 2024, Volume and Issue: 43(6), P. 2660 - 2670

Published: March 23, 2024

Language: Английский

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Active Sites Engineered Bimetallic Iron–Vanadium Oxide (FeVO_x) Thin Film Electrocatalyst for Efficient and Sustainable Water Oxidation

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(8), P. 7292 - 7301

Published: March 28, 2024

Designing a cost-effective and highly active thin film electrocatalyst is crucial for expediting the kinetics of oxygen evolution reaction (OER) clean hydrogen production via water electrolysis. Herein, we report fabrication efficient robust OER catalysts by depositing films iron–vanadium oxide (FeVOx) on nickel foam (NF) using aerosol-assisted chemical vapor deposition (AACVD). Different morphological variants FeVOx catalyst prepared within 40 to 120 min were thoroughly investigated oxidation in 1.0 M KOH solution. The corresponding electrochemical experiments validate exceptional performance FeVOx-40 catalyst, as current density sharply increases from 10 1000 mA cm–2 narrow overpotential range 270–330 mV (vs RHE). Moreover, this retains its initial morphology composition even after performing continuous operation 100 h. outstanding catalytic was credited distinctive synergy with underlying NF support, which enhanced overall conductivity system. straightforward effective bimetallic system (FeVOx/NF) enable communities develop utilize novel electrocatalysts dissociation.

Language: Английский

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Cobalt Phthalocyanine Based Metal–Organic Framework as an Efficient Bifunctional Electrocatalyst for Water Electrolysis

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(9), P. 8249 - 8261

Published: April 11, 2024

Water is the most convenient and facile fossil-free source for production of hydrogen (H2). Electrochemical water splitting considered a promising potential approach accomplishing frugality. Although water-splitting reaction versatile green technique, it accounts only 4% universal H2 production. The main hindrance in large-scale sluggish kinetics reaction, which employs costlier precious catalysts. In addition, half-cell reactions evolution (HER) oxygen (OER) require two different types catalysts, not increases cost but also decreases efficiency due to enhanced complexity system. Hence, designing an efficient, robust, nonprecious, earth-abundant, low-cost electrocatalyst capable catalyzing both HER OER during overall urgent requirement meet energy demand sustainable growth. Here, highly bifunctional fabricated using quinone-substituted cobalt(II) phthalocyanine (HQCoPc) with carbon nanoparticles (Ketjen black, KB). organic hybrid HQCoPc + KB modified on GCE Ni foam showed remarkable electrocatalytic performance acidic basic conditions, respectively. composite affords lower onset 76 mV overpotential 234 360 at 10 mA·cm–2 OER, respectively, superior stability more than 40,000 s. designed offers better catalyst addressing provides cost-effectiveness good chemical technology.

Language: Английский

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