Boosting photoelectrochemical water splitting by Au@Pt modified ZnO/CdS with synergy of Au-S bonds and surface plasmon resonance

Wang, Songbo; Liu, Pengjie; Meng, Chengzhen; Wang, Yidan; Zhang, Lei; Pan, Lun; Zhang, Yin; Tang, Na; Zou, Ji‐Jun

doi:10.1016/j.jcat.2022.03.003

Cited by 30 publications

(7 citation statements)

References 54 publications

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“…Furthermore, the influence of monochromatic light upon photocurrent density was illustrated by IPCE spectra. As indicated in Figure c, all the samples reached the highest IPCE value at 400 nm in the range of 350–700 nm, indicating that the most photogenerated electrons and holes appeared at this wavelength. − At this point, it is distinct to show that the TFIC photoanode achieves the highest IPCE value with 86.2% at 400 nm, which was 4.44-fold that of bare Fe 2 O 3 (19.4%), and the IPCE value of the as-prepared samples decreased in the sequence of TFC, TFI, TF, and Fe 2 O 3 .…”

Section: Resultsmentioning

confidence: 85%

Boosted Photoelectrochemical Seawater Splitting by CoOOH-Modified Ti-Fe₂O₃/In₂O₃ by Synergy of Electronic Modulation and Heterojunction Construction

Wang,

et al. 2023

ACS Appl. Nano Mater.

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In order to address the current energy and environmental challenges, photoelectrochemical (PEC) water splitting has been widely studied, and the key point about the efficient PEC process is how to develop highly active photoanode catalysts. In this article, we report a two-step hydrothermal and electrodeposition approach to prepare a cobalt (oxy)hydroxide (CoOOH)-modified Ti-Fe 2 O 3 -In 2 O 3 electrode by synergy of electron modulation and a heterojunction structure for promoting PEC water splitting. Under a bias of 1.23 V vs RHE, the optimized Ti-Fe 2 O 3 -In 2 O 3 /CoOOH photoanode demonstrated remarkable photocurrent density and hydrogen evolution rate as high as 1.33 mA cm −2 and 22.8 μmol cm −2 h −1 , which was 5.11-fold and 5.14fold that of bare α-Fe 2 O 3 , respectively. Characterization results indicate that Ti-doping will alter the electronic structure and improve the charge carrier density, whereas the construction of a heterojunction can realize the spatial separation of charge carriers. Meanwhile, the outer CoOOH ultrathin layer can provide a large amount of oxygen evolution reaction sites and promote the surface reaction. This work suggests that the PEC performance of Fe 2 O 3based photoanodes can be improved effectively by the synergy of electronic modulation and heterojunction construction.

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Section: Resultsmentioning

confidence: 85%

Boosted Photoelectrochemical Seawater Splitting by CoOOH-Modified Ti-Fe₂O₃/In₂O₃ by Synergy of Electronic Modulation and Heterojunction Construction

Wang,

et al. 2023

ACS Appl. Nano Mater.

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“…[85] The enhancement of PEC activity was attributed to the LSPR effect of Au nanoparticles which extended the light absorption range and increased the separation efficiency of the photogenerated electron-hole pairs. Aside from plasmonic effect, noble metals such as platinum (Pt), [88][89][90] rhodium (Rh), [91] or iridium (Ir) [92] have also be employed as OER cocatalysts to promote the photogenerated holes transfer process. For example, Rh-doped SrTiO 3 perovskite composed with BiVO 4 showed a significantly improved PEC performance due to the role of Rh in enhancing charge transfer and charge separation efficiencies.…”

Section: Principles Of Pec Water Splittingmentioning

confidence: 99%

Alternatives to Water Photooxidation for Photoelectrochemical Solar Energy Conversion and Green H₂ Production

Daiyan

Nguyen

et al. 2022

Advanced Energy Materials

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Photoelectrochemical (PEC) water splitting is considered a promising technology to produce renewable hydrogen, a clean fuel or energy carrier to replace conventional carbon‐based fossil‐fuel sources. Nevertheless, the overall solar‐to‐hydrogen efficiency and the cost‐effectiveness of this technology are still unsatisfactory for practical implementation. This can be primarily attributed to the sluggish kinetics of the anodic oxygen evolution reaction (OER) and the relatively low economic value of cogenerated O2 production. Over the past decades, there are extensive efforts to explore more kinetically favorable photooxidation reactions, which coupled with hydrogen evolution reaction (HER) can simultaneously improve H2 production yield and produce higher valuable alternatives to conventional O2. This review aims to present recent progress on the alternative anodic choices to OER. Here, the fundamental of PEC water splitting and the critical components required for this system are first shortly summarized. Then the benefits and issues of alternative photooxidation reactions including photooxidation of water to hydrogen peroxide, chlorine, alcohol, 5‐hydroxymethylfurfural, or urea oxidation when combined with the concurrent HER, are reviewed and analyzed. This review is concluded by presenting a critical evaluation of the challenges and opportunities of these alternative HER‐coupled photooxidation reactions for solar energy production and environmental treatment.

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“…Jiang et al found that the maximum solar-to-hydrogen efficiency is 4.3% for Cu-doped TiO 2 –12CdS NWs photoanode. Recently, Wang et al studied the PEC water splitting enhancement by Au@Pt-modified ZnO-CdS heterojunctions with a photocurrent density as high as 4.23 mA/cm 2 at 1.23 V. However, the influence of plasmonic metal nanoparticles on InGaN-based heterojunction semiconductors for the PEC water splitting was seldom reported. − …”

Section: Introductionmentioning

confidence: 99%

“…Jiang et al 35 found that the maximum solar-to-hydrogen efficiency is 4.3% for Cu-doped TiO 2 −12CdS NWs photoanode. Recently, Wang et al 36 studied the PEC water splitting enhancement by Au@Ptmodified ZnO-CdS heterojunctions with a photocurrent density as high as 4.23 mA/cm 2 at 1.23 V. However, the influence of plasmonic metal nanoparticles on InGaN-based heterojunction semiconductors for the PEC water splitting was seldom reported. 37−41 In this study, we demonstrate the synergetic effect of the combination of two strategies, incorporating plasmonic metals and integrating heterogeneous semiconductors to create a hybrid photocatalyst for improved PEC water-splitting performance.…”

Section: Introductionmentioning

confidence: 99%

Integration of Ag Plasmonic Metal and WO₃/InGaN Heterostructure for Photoelectrochemical Water Splitting

Devarajulu

Loka

Goddati

et al. 2023

ACS Appl. Mater. Interfaces

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In this study, a Ag/WO 3 /InGaN hybrid heterostructure was successfully developed by sputtering and molecular beam epitaxy techniques, to obtain unique Ag nanospheres adorned with cauliflower-like WO 3 nanostructure over the InGaN nanorods (NRs). Exploiting the localized surface plasmon resonance of Ag, the Ag/WO 3 /InGaN heterostructure exhibited superior photoabsorption ability in the visible region (400−700 nm) of the solar spectrum, with a surface plasmon resonance band centered around 440 nm. Comprehensive analysis through photoluminescence spectroscopy, photocurrent measurements, and electrochemical impedance spectroscopy revealed that the Ag/WO 3 /InGaN hybrid heterostructure significantly enhances the charge carrier separation and transfer kinetics leading to improved overall photoelectrochemical (PEC) performance. The photocurrent density of the Ag/WO 3 /InGaN photoanode is 1.17 mA/cm 2 , which is about 2.72 times higher than that of pure InGaN NRs under visible light irradiation. The photoanode exhibited excellent stability for about 12 h. From the study, it has been found that the maximum applied bias photon-to-current efficiency (ABPE) is ∼1.67% at the applied bias of 0.6 V. The improved PEC water splitting efficiency of the Ag/WO 3 /InGaN photoanode is attributed to the synergistic effects of localized surface plasmon resonance (LSPR), efficient charge carrier separation and transport, and the presence of a Schottky junction. Consequently, the plasmonic metal-assisted heterojunction-based semiconductor Ag/WO 3 /InGaN demonstrates immense potential for practical applications in photoelectrochemical water splitting.

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Boosting photoelectrochemical water splitting by Au@Pt modified ZnO/CdS with synergy of Au-S bonds and surface plasmon resonance

Cited by 30 publications

References 54 publications

Boosted Photoelectrochemical Seawater Splitting by CoOOH-Modified Ti-Fe₂O₃/In₂O₃ by Synergy of Electronic Modulation and Heterojunction Construction

Boosted Photoelectrochemical Seawater Splitting by CoOOH-Modified Ti-Fe₂O₃/In₂O₃ by Synergy of Electronic Modulation and Heterojunction Construction

Alternatives to Water Photooxidation for Photoelectrochemical Solar Energy Conversion and Green H₂ Production

Integration of Ag Plasmonic Metal and WO₃/InGaN Heterostructure for Photoelectrochemical Water Splitting

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Boosting photoelectrochemical water splitting by Au@Pt modified ZnO/CdS with synergy of Au-S bonds and surface plasmon resonance

Cited by 30 publications

References 54 publications

Boosted Photoelectrochemical Seawater Splitting by CoOOH-Modified Ti-Fe2O3/In2O3 by Synergy of Electronic Modulation and Heterojunction Construction

Boosted Photoelectrochemical Seawater Splitting by CoOOH-Modified Ti-Fe2O3/In2O3 by Synergy of Electronic Modulation and Heterojunction Construction

Alternatives to Water Photooxidation for Photoelectrochemical Solar Energy Conversion and Green H2 Production

Integration of Ag Plasmonic Metal and WO3/InGaN Heterostructure for Photoelectrochemical Water Splitting

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Product

Resources

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Boosted Photoelectrochemical Seawater Splitting by CoOOH-Modified Ti-Fe₂O₃/In₂O₃ by Synergy of Electronic Modulation and Heterojunction Construction

Boosted Photoelectrochemical Seawater Splitting by CoOOH-Modified Ti-Fe₂O₃/In₂O₃ by Synergy of Electronic Modulation and Heterojunction Construction

Alternatives to Water Photooxidation for Photoelectrochemical Solar Energy Conversion and Green H₂ Production

Integration of Ag Plasmonic Metal and WO₃/InGaN Heterostructure for Photoelectrochemical Water Splitting