RuO2-loaded Sr2+-doped CeO2 with d0 Electronic Configuration as a New Photocatalyst for Overall Water Splitting

Kadowaki, Haruhiko; Saito, Nobuo; Nishiyama, Hiroshi; Inoue, Y.

doi:10.1246/cl.2007.440

Cited by 49 publications

(30 citation statements)

References 12 publications

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“…Few binary metal oxides have been reported to be active in water splitting [83]. Cerium oxide is a fairly recent binary metal oxide material that has been shown to have a water splitting activity when doped by Strontium [84] or more recently as oriented hexagonal nanorods on Titanium substrates with a Na 2 S-Na 2 SO 3 sacrificial agent [85]. This last material had also been successfully used for the degradation of pollutants.…”

Section: Binary Oxidesmentioning

confidence: 99%

TiO2- and ZnO-Based Materials for Photocatalysis: Material Properties, Device Architecture and Emerging Concepts

Ishchenko¹,

Rogé²,

Lamblin³

et al. 2016

Semiconductor Photocatalysis - Materials, Mechanisms and Applications

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Numerous kinds of photocatalysts such as oxide-, nitride-or sulfide-based semiconductors, conducting polymers or graphene oxide based materials have emerged since the discovery of water splitting on TiO electrodes in . Yet, metal-oxides are still largely the main family of materials promoted into photocatalytic applications.In this chapter, we focus on the application of supported nanostructures of metal oxides, principally TiO and ZnO, for the heterogeneous photocatalysis. We emphasize the benefits of increasing the specific surface area by using the direct growth of metal-oxide nanostructures onto porous templates. "mong the numerous strategies to improve the photocatalytic activity, we detail the fabrication of semiconductor metal-oxide heterostructures promoting the charge separation under UV irradiation. We also describe how the use of plasmonic nanostructures allows the shifting of the light absorption in the visible range. Finally, we give an overview on the new strategies to increase the photocatalytic activity with new architectures and materials based on metal-oxides.

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Section: Binary Oxidesmentioning

confidence: 99%

TiO2- and ZnO-Based Materials for Photocatalysis: Material Properties, Device Architecture and Emerging Concepts

Ishchenko¹,

Rogé²,

Lamblin³

et al. 2016

Semiconductor Photocatalysis - Materials, Mechanisms and Applications

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“…[6][7][8][9][10][11][12][13][14][15][16][17] The reactivity of ceria in oxidation reactions, include CO oxidation [18][19][20] and NO X reduction [21][22][23][24][25] is intertwined with the release and uptake of oxygen. Doping of ceria with other metal cations, such as Zr, La, Pd, Ti and Cu has been widely studied [26][27][28][29][30][31][32][33][34][35][36][37][38] to enhance reactivity in oxidation reactions. Also, catalysts based on mixed MgO-CeO 2 supports and Mg doping have been proposed for many different reactions.…”

Section: Q2mentioning

confidence: 99%

On the interaction of Mg with the (111) and (110) surfaces of ceria

Nolan

Lykhach

Tsud

et al. 2012

Phys. Chem. Chem. Phys.

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Access to the full text of the published version may require a subscription. Please note that, in the typefaces we use, an italic vee looks like this: n, and a Greek nu looks like this: n. RightsWe will publish articles on the web as soon as possible after receiving your corrections; no late corrections will be made.Please return your final corrections, where possible within 48 hours of receipt, by e-mail to: pccp@rsc.org.Reprints-Electronic (PDF) reprints will be provided free of charge to the corresponding author. The catalytic activity of cerium dioxide can be modified by deposition of alkaline earth oxide layers or nanoparticles or by substitutional doping of metal cations at the Ce site in ceria. In order to understand the effect of Mg oxide deposition and doping, a combination of experiment and first principles simulations is a powerful tool. In this paper, we examine the interaction of Mg with the ceria (111) surface using both angle resolved X-ray (ARXPS) and resonant (RPES) photoelectron spectroscopy measurements and density functional theory (DFT) corrected for onsite Coulomb interactions (DFT + U). With DFT + U, we also examine the interaction of Mg with the ceria (110) (111) surface. The combined results provide a basis for deeper insights into the catalytic behaviour of ceria-based mixed oxide catalysts.

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“…For photo-assisted water splitting, oxide semiconductors continue to hold a reputation due to their ease of availability, low cost and photostability. Various oxide semiconductors, especially oxides consisting of metal cations (Ga 3+ , In 3+ , Ge 4+ , Sn 4+ , Sb 5+ ) with d 10 configuration and metal cations (Ti 4+ , Zr 4+ , Nb 5+ , Ta 5+ , W 6+ ) with d 0 configuration have been reported for good photocatalytic activity when assisted by cocatalyst like RuO2 [17][18][19][20][21][22][23]. Perovskite structured metal oxides like SrTiO3 and KTaO3 can split water without an external bias in powdered form and show enhanced results when combined with NiO or Rh cocatalyst [24,25].…”

Section: Introductionmentioning

confidence: 99%

Hierarchical Ternary Sulfides as Effective Photocatalyst for Hydrogen Generation Through Water Splitting: A Review on the Performance of ZnIn2S4

et al. 2021

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One of the major aspects and advantages of solar energy conversion is the photocatalytic hydrogen generation using semiconductor materials for an eco-friendly technology. Designing a low-cost efficient material to overcome limited light absorption as well as rapid recombination of photogenerated charge carriers is essential to achieve considerable hydrogen generation. In recent years, sulfide based semiconductors have attracted scientific research interest due to their excellent solar response and narrow band gap. The present review focuses on the recent approaches in the development of hierarchical ternary sulfide based photocatalysts with a special focus on ZnIn2S4. We also observe how the electronic structure of ZnIn2S4 is beneficial for water splitting and the various strategies involved for improving the material efficiency for photocatalytic hydrogen generation. The review places emphasis on the latest advancement/new insights on ZnIn2S4 being used as an efficient material for hydrogen generation through photocatalytic water splitting. Recent progress on essential aspects which govern light absorption, charge separation and transport are also discussed in detail.

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RuO2-loaded Sr2+-doped CeO2 with d0 Electronic Configuration as a New Photocatalyst for Overall Water Splitting

Cited by 49 publications

References 12 publications

TiO2- and ZnO-Based Materials for Photocatalysis: Material Properties, Device Architecture and Emerging Concepts

TiO2- and ZnO-Based Materials for Photocatalysis: Material Properties, Device Architecture and Emerging Concepts

On the interaction of Mg with the (111) and (110) surfaces of ceria

Hierarchical Ternary Sulfides as Effective Photocatalyst for Hydrogen Generation Through Water Splitting: A Review on the Performance of ZnIn2S4

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