Plasmon-Driven Reaction Selectivity Tuning for Photoelectrochemical H<sub>2</sub>O<sub>2</sub> Production

Jang, Gyu Yong; Choi, Young Moon; Roh, Seung Hun; Wan, Shipeng; Zhang, Kan; Kwon, Seok Joon; Kim, Jung Kyu; Park, Jong Hyeok

doi:10.1021/acsenergylett.3c02172

ACS Energy Lett.

2023

DOI: 10.1021/acsenergylett.3c02172

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Plasmon-Driven Reaction Selectivity Tuning for Photoelectrochemical H₂O₂ Production

Gyu Yong Jang,

Young Moon Choi,

Seung Hun Roh

et al.

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2024

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Cited by 16 publications

References 69 publications

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Tailoring Carrier Dynamics of BiVO₄ Photoanode via Dual Incorporation of Au and Co(OH)_x Cooperative Modification for Photoelectrochemical Water Splitting

Chen,

Li,

Peng

et al. 2024

Adv Funct Materials

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Photoelectrochemical solar to hydrogen production is a promising way to achieve carbon neutrality, but severe charge recombination in photoanodes limits the conversion efficiency. Herein, Au nanoparticles and Co(OH)x co‐sensitized bismuth vanadate (BiVO4) to construct AuCo(OH)x/BiVO4 photoanode for significantly enhancing the performance of photoelectrochemical water splitting. This process significantly improves the bulk charge carrier separation efficiency, the surface kinetics of water oxidation, and the electron density of BiVO4 photoanode through Au surface plasmon resonance (SPR) and Co(OH)x oxygen evolution catalysts effect. Additionally, the enhancement of the *O and the *OOH generation accelerate the oxygen evolution reaction kinetics. Consequently, the constructed AuCo(OH)x/BiVO4 photoanode demonstrates an excellent photocurrent of 6.2 mA cm−2 at 1.23 V versus reversible hydrogen electrode and a stable continuous output within 42 h. This work contributes to developing high‐efficiency and high‐stability photoanodes for solar H2 production through SPR effect and oxygen evolution catalysts.

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Tailoring Carrier Dynamics of BiVO₄ Photoanode via Dual Incorporation of Au and Co(OH)_x Cooperative Modification for Photoelectrochemical Water Splitting

Chen,

Li,

Peng

et al. 2024

Adv Funct Materials

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Metal‐Based Oxygen Reduction Electrocatalysts for Efficient Hydrogen Peroxide Production

Bu,

Ma,

Wang

et al. 2024

Advanced Materials

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Hydrogen peroxide (H2O2) is a high‐value chemical widely used in electronics, textiles, paper bleaching, medical disinfection, and wastewater treatment. Traditional production methods, such as the anthraquinone oxidation process and direct synthesis, require high energy consumption, and involve risks from toxic substances and explosions. Researchers are now exploring photochemical, electrochemical, and photoelectrochemical synthesis methods to reduce energy use and pollution. This review focuses on the 2‐electron oxygen reduction reaction (2e− ORR) for the electrochemical synthesis of H2O2, and discusses how catalyst active sites influence O2 adsorption. Strategies to enhance H2O2 selectivity by regulating these sites are presented. Catalysts require strong O2 adsorption to initiate reactions and weak *OOH adsorption to promote H2O2 formation. The review also covers advances in single‐atom catalysts (SACs), multi‐metal‐based catalysts, and highlights non‐noble metal oxides, especially perovskite oxides, for their versatile structures and potential in 2e− ORR. The potential of localized surface plasmon resonance (LSPR) effects to enhance catalyst performance is also discussed. In conclusion, emphasis is placed on optimizing catalyst structures through theoretical and experimental methods to achieve efficient and selective H2O2 production, aiming for sustainable and commercial applications.

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Interfacial Engineering of BiVO₄/Bi₂Mo₂O₉ Heterojunction Toward Photogenerated Carriers Anisotropic Transfer

Xiong,

Zhou,

Zhou

et al. 2024

Energy Tech

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Developing an advanced strategy to decrease the charge recombination of BiVO4 is a vital requirement to boost charge transfer for photoelectrochemical water oxidation. Herein, a type II BiVO4/Bi2Mo2O9 heterojunction is successfully synthesized on fluorine‐doped tin oxide substrate by successive ionic layer adsorption and reaction method. Thanks to the Fermi‐level energy difference of 275 mV between BiVO4 and Bi2Mo2O9, an outward built‐in electric filed pointing from Bi2Mo2O9 to BiVO4 is induced, which accelerates the directional flowing of photogenerated electron and hole. Such a unique design structure fastens the electron migration from BiVO4 to Bi2Mo2O9, and the holes will transfer to the surface to participate in water oxidation. The longer lifetime (9.2 ns) by time‐resolved transient photoluminescence signifies that the Bi2Mo2O9 can boost interfacial carriers’ anisotropic migration; the surface charge transfer rate of BiVO4/Bi2Mo2O9 is up to 387.6 s−1 (1.4 V vs reversible hydrogen electrode (RHE)). The BiVO4/Bi2Mo2O9 heterojunction exhibits a remarkable charge separation efficiency of 64% and outstanding photocurrent density of 0.9 mA cm−2 at 1.23 V versus RHE.

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Plasmon-Driven Reaction Selectivity Tuning for Photoelectrochemical H₂O₂ Production

Cited by 16 publications

References 69 publications

Tailoring Carrier Dynamics of BiVO₄ Photoanode via Dual Incorporation of Au and Co(OH)_x Cooperative Modification for Photoelectrochemical Water Splitting

Tailoring Carrier Dynamics of BiVO₄ Photoanode via Dual Incorporation of Au and Co(OH)_x Cooperative Modification for Photoelectrochemical Water Splitting

Metal‐Based Oxygen Reduction Electrocatalysts for Efficient Hydrogen Peroxide Production

Interfacial Engineering of BiVO₄/Bi₂Mo₂O₉ Heterojunction Toward Photogenerated Carriers Anisotropic Transfer

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Resources

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Plasmon-Driven Reaction Selectivity Tuning for Photoelectrochemical H2O2 Production

Cited by 16 publications

References 69 publications

Tailoring Carrier Dynamics of BiVO4 Photoanode via Dual Incorporation of Au and Co(OH)x Cooperative Modification for Photoelectrochemical Water Splitting

Tailoring Carrier Dynamics of BiVO4 Photoanode via Dual Incorporation of Au and Co(OH)x Cooperative Modification for Photoelectrochemical Water Splitting

Metal‐Based Oxygen Reduction Electrocatalysts for Efficient Hydrogen Peroxide Production

Interfacial Engineering of BiVO4/Bi2Mo2O9 Heterojunction Toward Photogenerated Carriers Anisotropic Transfer

Contact Info

Product

Resources

About

Plasmon-Driven Reaction Selectivity Tuning for Photoelectrochemical H₂O₂ Production

Tailoring Carrier Dynamics of BiVO₄ Photoanode via Dual Incorporation of Au and Co(OH)_x Cooperative Modification for Photoelectrochemical Water Splitting

Tailoring Carrier Dynamics of BiVO₄ Photoanode via Dual Incorporation of Au and Co(OH)_x Cooperative Modification for Photoelectrochemical Water Splitting

Interfacial Engineering of BiVO₄/Bi₂Mo₂O₉ Heterojunction Toward Photogenerated Carriers Anisotropic Transfer