Sonohydrothermal Synthesis of Nanostructured (Ce,Zr)O<sub>2</sub> Mixed Oxides with Enhanced Catalytic Performance

Cau, Camille; Guari, Yannick; Chave, Tony; Larionova, Joulia; Pochon, Patrick; Nikitenko, Sergey I.

doi:10.1021/jp407096p

Cited by 23 publications

(17 citation statements)

References 42 publications

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“…Moreover, its surface area and nanosize rarely changed after being calcined at 500 °C. Recently, Nikitenko et al [124] prepared Ce0.5Zr0.5O2 nanocrystallite mixed oxide with external mesopores using simultaneous sonohydrothermal treatment. The obtained material exhibited higher surface area than the similar material prepared by an ultrasonically assisted CP method.…”

Section: Sonochemical Synthesis Methodsmentioning

confidence: 99%

Structure, synthesis, and catalytic properties of nanosize cerium-zirconium-based solid solutions in environmental catalysis

Liu

Zhang

Chen

et al. 2019

Chinese Journal of Catalysis

103

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Section: Sonochemical Synthesis Methodsmentioning

confidence: 99%

Structure, synthesis, and catalytic properties of nanosize cerium-zirconium-based solid solutions in environmental catalysis

Liu

Zhang

Chen

et al. 2019

Chinese Journal of Catalysis

103

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“…The synthesis strategies of ceria‐zirconia solid solutions are similar to the aforementioned methods for preparing ceria nanocrystals such as hydrothermal, sol‐gel and sonochemical methods, etc. Our group developed a mild urea hydrolysis‐based hydrothermal method to prepare Ce 1– x Zr x O 2 ( x = 0–0.8) nanopowders with superior structural homogeneity and superior thermal stability and validated a strong correlation between lattice strain and OSC value in the Ce 1– x Zr x O 2 solid solutions .…”

Section: Tuning the Composition Of Ceria‐based Composite Nanocatalystsmentioning

confidence: 99%

Recent Progress in Well‐Controlled Synthesis of Ceria‐Based Nanocatalysts towards Enhanced Catalytic Performance

Sun

Yan

2016

Advanced Energy Materials

137

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The unique electronic configuration and structural properties of ceria make ceria‐based nanomaterials such as morphology‐dependent ceria nanocrystals, rare earth‐doped ceria‐zirconia solid solutions and noble metal‐ceria nanocomposites effective promoters in three‐way catalysts for low‐temperature water‐gas‐shift reaction, preferential oxidation of traces of CO, the treatment of toxic auto‐mobile exhaust, etc. The activities of nanoceria catalysts can be determined by their morphologies, oxygen vacancies, interfacial structures and the type of exposed crystal surfaces, as well as the synergistic effect exhibited by nanocomposites. In this review, the state‐of‐the‐art developments in the well‐controlled synthesis of ceria‐based nanocatalysts and their applications in both environmental and energy fields is summarized. The involved reaction mechanisms are also briefly introduced, and eventually an outlook in the design of novel nanoceria catalysts for valuable energy applications is addressed.

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“…Recently it was shown that such sonohydrothermal treatment (SHT) accelerates the crystallization and improves the catalytic performance of nanocrystalline metal oxides. 11 The experimental details about SHT reactor are presented in Supporting Information ( Figure S1). …”

Section: Vis/nirmentioning

confidence: 99%

Photothermal Hydrogen Production Using Noble-Metal-Free Ti@TiO₂ Core–Shell Nanoparticles under Visible–NIR Light Irradiation

et al. 2015

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Limiting resources of fossil fuels and environmental issues inevitably require more efficient utilization of solar energy. Photocatalytic production of hydrogen is identified as one of the most promising routes for developing clean and sustainable energy. However, engineering of low-cost materials exhibiting high catalytic activity in the entire range of solar spectrum is still a challenge. Here we report, for the first time, simple, easily scalable and environmentally friendly synthesis of stable Ti@TiO 2 core-shell nanoparticles exhibiting photocatalytic activity in hydrogen production under Vis/NIR light irradiation without any noble metals. Stable to oxidation core-shell Ti@TiO 2 nanoparticles have been obtained by the simultaneous actions of ultrasound and hydrothermal treatment on air-passivated titanium metal nanoparticles in pure water. The obtained material is composed of quasi-spherical Ti particles (20-80 nm) coated by 5-15 nm crystals of defect-free anatase with small amounts of rutile. In contrast to pristine TiO 2 , the Ti@TiO 2 nanoparticles extend the photo response from UV to NIR light region due to the light absorption by nonplasmonic Ti core. In MeOH-H 2 O solutions, the Ti@TiO 2 nanoparticles exhibit the strongest catalytic activity in H 2 formation under joint effect of Vis/NIR light and heat. Isotopic study using MeOH-D 2 O solutions suggested the reaction mechanism involving electron holes accumulation in semiconducting TiO 2 shell via charge separation and multiple charge-transfer steps that follow Ti interband transition. The electron transport from Ti core presumably occurs through the junctions between TiO 2 crystals at the surface of core-shell nanoparticles.

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Sonohydrothermal Synthesis of Nanostructured (Ce,Zr)O₂ Mixed Oxides with Enhanced Catalytic Performance

Abstract: International audienc

Cited by 23 publications

References 42 publications

Structure, synthesis, and catalytic properties of nanosize cerium-zirconium-based solid solutions in environmental catalysis

Structure, synthesis, and catalytic properties of nanosize cerium-zirconium-based solid solutions in environmental catalysis

Recent Progress in Well‐Controlled Synthesis of Ceria‐Based Nanocatalysts towards Enhanced Catalytic Performance

Photothermal Hydrogen Production Using Noble-Metal-Free Ti@TiO₂ Core–Shell Nanoparticles under Visible–NIR Light Irradiation

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Sonohydrothermal Synthesis of Nanostructured (Ce,Zr)O2 Mixed Oxides with Enhanced Catalytic Performance

Abstract: International audienc

Cited by 23 publications

References 42 publications

Structure, synthesis, and catalytic properties of nanosize cerium-zirconium-based solid solutions in environmental catalysis

Structure, synthesis, and catalytic properties of nanosize cerium-zirconium-based solid solutions in environmental catalysis

Recent Progress in Well‐Controlled Synthesis of Ceria‐Based Nanocatalysts towards Enhanced Catalytic Performance

Photothermal Hydrogen Production Using Noble-Metal-Free Ti@TiO2 Core–Shell Nanoparticles under Visible–NIR Light Irradiation

Contact Info

Product

Resources

About

Sonohydrothermal Synthesis of Nanostructured (Ce,Zr)O₂ Mixed Oxides with Enhanced Catalytic Performance

Photothermal Hydrogen Production Using Noble-Metal-Free Ti@TiO₂ Core–Shell Nanoparticles under Visible–NIR Light Irradiation