Oriented construction between crystal facet homojunction and S vacancies on CdS for boosting photocatalytic H2 evolution

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 73, P. 665 - 672

Published: June 12, 2024

Language: Английский

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Co3O4@CoPx heterojunctions formed by in situ coupling of surface bonding state P(δ-)–Co(δ+)-O(δ-) to driving space-vector separation of photogenerated carriers

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 354, P. 128760 - 128760

Published: July 14, 2024

Language: Английский

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Modulating the Moderate d‐Band Center of Indium in InVO₄ Nanobelts by Synergizing MnO_x and Oxygen Vacancies for High‐Efficiency CO₂ Photoreduction

Small, Journal Year: 2024, Volume and Issue: 20(45)

Published: July 27, 2024

Abstract Modulating the electronic properties of transition metal sites in photocatalysts at atomic level is essential for achieving high‐activity carbon dioxide photoreduction (CO 2 PR). An strategy herein proposed to engineer In‐d‐band center InVO 4 by incorporating MnO x nanoparticles and oxygen vacancies (V O ) into holey nanobelts (MnO /V ‐InVO ), which synergistically modulates a moderate consequently leads high‐efficiency CO PR. The catalyst with optimized property exhibits single evolution rate up 145.3 µmol g −1 h monoxide (CO) product selectivity 92.6%, coming out front reported ‐based materials. It discovered that modulated favors interaction between In their intermediates, thereby improves thermodynamics kinetics PR‐to‐CO reaction. This work not only demonstrates effective engineering d orbital low‐coordination atoms promote PR, but also paves way application tuning d‐band develop catalysts.

Language: Английский

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Construction of Highly Active Fe₅C₂–FeCo Interfacial Sites for Oriented Synthesis of Light Olefins from CO₂ Hydrogenation

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 1112 - 1122

Published: Jan. 3, 2025

The hydrogenation of CO2 into high-value chemistry is seen as one the viable strategies for solving energy crisis future. Light olefins have attracted considerable attention basic feedstocks in industry. In this work, a series Fe–Co bimetallic active site catalysts were constructed by typical sol–gel strategy. synergistic regulation layout catalyst highly interfaces and exhibited high conversion (56.9%) CO2, low CO selectivity (3.6%), (40.5%) light olefins, remarkable yield (22.2%). results associated characterization analysis indicate that activity formed sites are fundamental reason olefins. introduction cobalt drive RWGS reaction forward (Le Chatelier's Principle), which further enhances conversion. addition, dynamic evolution physical phase structure, elemental composition valence, H2 adsorption ability, formation process during analyzed situ DRIFT spectra other characterizations, potential mechanism to proposed. This work provides an effective rational design strategy bimetals with promote efficient oriented synthesis

Language: Английский

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Epitaxially induced carrier space vector separation over Zn0.1Cd0.9S/Co9S8 Schottky junctions

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132514 - 132514

Published: March 1, 2025

Language: Английский

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Synergistic Enhancement of Vectorial Separation of Photogenerated Charge Carriers via Heterojunction and Quantum Confinement Effects

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

Published: March 4, 2025

Language: Английский

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Photocatalytic hydrogen evolution: Recent advances in materials, modifications, and photothermal synergy

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 115, P. 113 - 130

Published: March 10, 2025

Language: Английский

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S-scheme heterojunction of CeVO4/Zn0.1Cd0.9S for enhanced photocatalytic hydrogen evolution

Journal of Rare Earths, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

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S-Scheme Heterojunctions between Nanoparticles of Cd_0.8Mn_0.2S and Cu₂O for Photocatalytic Hydrogen Evolution

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(17), P. 20714 - 20722

Published: Aug. 21, 2024

Cd0.8Mn0.2S is a ternary particulate chemical substance that faces significant challenges with carrier recombination in the field of photocatalysis. To address this issue, we formed an internal electric and constructed S-scheme heterojunctions using Cu2O nanoparticles, thereby reducing rate photogenerated carriers. We synthesized hydrothermal method, followed by employing ultrasonic self-assembly to closely couple Cu2O. In configuration, acts as electron acceptor donor. The Cd0.8Mn0.2S/Cu2O structure forms tight interface, providing shortest transfer distance for migration. heterojunction strategy effectively lowers reaction barriers facilitates vectorial separation Under 10 W white light illumination, composite photocatalyst demonstrates remarkable hydrogen evolution activity, achieving production 40.06 mmol·g–1·h–1. This interface paves way structural design large-scale application highly active visible photocatalysts.

Language: Английский

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Highly Active Cu2O/CoCo-PBA S-Scheme Heterojunction for Enhanced Visible-Light-Driven Hydrogen Evolution

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: unknown, P. 105301 - 105301

Published: Oct. 1, 2024

Language: Английский

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