Formation, aging and self-assembly of regular nanostructures from laser ablation of indium and zinc in water

Zhang, Ke; Ganeev, R. A.; Boltaev, Ganjaboy S.; Redkin, P. V.; Krishnendu, P. S.; Chen, Guo

doi:10.1016/j.colsurfa.2019.124016

Cited by 6 publications

(11 citation statements)

References 51 publications

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“…This observation concurs with previous studies on the laser ablation of indium with IR- , and VIS-laser pulses in water. Importantly, Zhang et al also noted that immediately after PLAL, the ns-IR-laser products appeared spherical with a wide size distribution and only gradually transformed into cuboids after a few days of growing . Therefore, it is reasonable to believe that the laser-synthesized colloids are initially spherical regardless of the used laser wavelength, which is also in line with other reports on laser-based NP synthesis summarized in many reviews. ,, …”

Section: Results and Discussionsupporting

confidence: 93%

“…For S1 and S2, it is apparent that the majority of indium is oxidized to crystalline In(OH) 3 [(200)-plane, 2θ = 22.3°] during ablation, which might be favored over the thermodynamically more stable In 2 O 3 due to the basic pH used. This is in line with the report from Zhang et al where In(OH) 3 was the dominant product when ablating an indium target . A reflection at 2θ of about 32.9° was also observed in their XRD pattern, suggesting the presence of residual metallic indium due to incomplete oxidation.…”

Section: Results and Discussionsupporting

confidence: 91%

“…Interestingly, the samples gained from ns-IR-laser ablation mainly contained cube-shaped InO x (S1), while the ns-VISlaser ablation yielded spherical InO x NPs (S2 and S3). This observation concurs with previous studies on the laser ablation of indium with IR- 45,46 and VIS-laser pulses 47 in water. Importantly, Zhang et al also noted that immediately after PLAL, the ns-IR-laser products appeared spherical with a wide size distribution and only gradually transformed into cuboids after a few days of growing.…”

Section: Effect Of Laser Wavelength and Phosphatesupporting

confidence: 93%

“…Importantly, Zhang et al also noted that immediately after PLAL, the ns-IR-laser products appeared spherical with a wide size distribution and only gradually transformed into cuboids after a few days of growing. 45 Therefore, it is reasonable to believe that the laser-synthesized colloids are initially spherical regardless of the used laser wavelength, which is also in line with other reports on laser-based NP synthesis summarized in many reviews. 22,30,48 Comparing the ADC analysis of the laser-generated indium colloids before supporting (Figures 1 and S2) with the particle size after deposition on the final catalyst (Figure 2b), the growth from X S1,before = 17 nm to X S1,after = 45 nm can be observed for batch S1, while the particle size in the case of the other two sample series was maintained.…”

Section: Effect Of Laser Wavelength and Phosphatesupporting

confidence: 74%

“…Note that the cuboid structure is typical of In(OH) 3 where a preferred [100] growth direction and (220) crystal planes were observed . This is supported by Zhang et al reporting that the growth of laser-generated In(OH) 3 colloids could take place for months after ablation in distilled water . On the other hand, S2 and S3 are relatively stable against Ostwald ripening due to the narrower size distribution.…”

Section: Results and Discussionsupporting

confidence: 55%

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Laser-Generated InO_x/ZrO₂ Catalysts for CO₂ Hydrogenation: Role of In Situ Fragmentation and Ripening Control

Lau

Schühle

Liang

et al. 2021

ACS Appl. Energy Mater.

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It is desirable to reduce the reliance on fossil fuels and to develop alternative methods to yield valuable chemicals. CO2 hydrogenation to methanol is a promising approach, where In2O3/ZrO2 catalysts have attracted increasing attention due to their high selectivity and stability. However, the activity of indium-based catalysts is very susceptible to the preparation method, which is typically wet impregnation. Here, we explore a laser-based synthesis route to prepare InO x /ZrO2 catalysts of varying indium size and load. The respective particle sizes were either adjusted by in situ fragmentation with a more (ns-VIS-laser) or less (ns-IR-laser) efficient laser wavelength or by using micromolar concentrations of phosphate as an electrostatic stabilizer. The InO x colloids were subsequently deposited onto ZrO2 Our results demonstrate that the pulsed laser ablation with ns-IR-laser pulses yielded larger ∼45 nm crystalline cuboid InO x supported on zirconia. The frequency-doubled ns-VIS-pulses on the other hand caused an augmented in situ fragmentation during ablation, which led to catalysts with spherical ∼14 nm InO x particles with a significantly higher degree of amorphousness. Further size quenching and increased amorphous content of the InO x nanoparticles were observed when micromolar concentrations of phosphates were additionally present during ablation. After supporting the InO x nanoparticles onto ZrO2, the laser-generated catalysts were found to perform equally well as their wet-chemically prepared counterparts for methanol synthesis in a slurry phase, although crystalline In species performed slightly better in the catalytic reaction. In conclusion, in situ fragmentation does not only provide opportunities for independent studies of size and composition but also ripening control and structural modifications such as amorphization.

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Section: Results and Discussionsupporting

confidence: 93%

Section: Results and Discussionsupporting

confidence: 91%

Section: Effect Of Laser Wavelength and Phosphatesupporting

confidence: 93%

Section: Effect Of Laser Wavelength and Phosphatesupporting

confidence: 74%

Section: Results and Discussionsupporting

confidence: 55%

See 3 more Smart Citations

Laser-Generated InO_x/ZrO₂ Catalysts for CO₂ Hydrogenation: Role of In Situ Fragmentation and Ripening Control

Lau

Schühle

Liang

et al. 2021

ACS Appl. Energy Mater.

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Room‐Temperature Laser Synthesis in Liquid of Oxide, Metal‐Oxide Core‐Shells, and Doped Oxide Nanoparticles

Amendola

Amans

Ishikawa

et al. 2020

Chemistry A European J

230

186

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Although oxide nanoparticles are ubiquitous in science and technology, a multitude of compositions, phases, structures, and doping levels exist, each one requiring a variety of conditions for their synthesis and modification. Besides, experimental procedures are frequently dominated by high temperatures or pressures and by chemical contaminants or waste. In recent years, laser synthesis of colloids emerged as a versatile approach to access a library of clean oxide nanoparticles relying on only four main strategies running at room temperature and ambient pressure: laser ablation in liquid, laser fragmentation in liquid, laser melting in liquid and laser defect‐engineering in liquid. Here, established laser‐based methodologies are reviewed through the presentation of a panorama of oxide nanoparticles which include pure oxidic phases, as well as unconventional structures like defective or doped oxides, non‐equilibrium compounds, metal‐oxide core–shells and other anisotropic morphologies. So far, these materials showed several useful properties that are discussed with special emphasis on catalytic, biomedical and optical application. Yet, given the endless number of mixed compounds accessible by the laser‐assisted methodologies, there is still a lot of room to expand the library of nano‐crystals and to refine the control over products as well as to improve the understanding of the whole process of nanoparticle formation. To that end, this review aims to identify the perspectives and unique opportunities of laser‐based synthesis and processing of colloids for future studies of oxide nanomaterial‐oriented sciences.

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Diverse nanomaterials synthesized by laser ablation of pure metals in liquids

Zhang

Liang

2022

Sci. China Phys. Mech. Astron.

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Diverse nanomaterials, in the forms of carbides, sulfides, oxides, metals, hydroxides, etc., have been synthesized by laser ablation in liquids (LAL) with metal targets as the dominant educts. Many advantages of LAL technique itself and its products have been revealed since 1983 when the first report about LAL was released. Different from traditional wet-chemical synthesis, one unique feature of LAL is its resultant extreme high-temperature and high-pressure local environment for the nucleation and growth of nanomaterials, despite being performed at room temperature. This extreme condition can induce the atomization and ionization of the target materials and liquid molecules to incur different chemical reactions. The laser, liquid, liquid additive, and target can significantly alter the local environment in a broad range. Thus, different phases and shapes of nanomaterials are producible even from the same target. Through directly comparing the products of LAL of 13 kinds of chosen representative metals synthesized under different conditions, this review presents and discusses current understandings, challenging issues, and perspectives related to the diversity of LAL-products, which is willing to promote a deeper investigation and discussion on a clear clarification of the chemical reactions and particle nucleation/growth processes.

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Formation, aging and self-assembly of regular nanostructures from laser ablation of indium and zinc in water

Cited by 6 publications

References 51 publications

Laser-Generated InO_x/ZrO₂ Catalysts for CO₂ Hydrogenation: Role of In Situ Fragmentation and Ripening Control

Laser-Generated InO_x/ZrO₂ Catalysts for CO₂ Hydrogenation: Role of In Situ Fragmentation and Ripening Control

Room‐Temperature Laser Synthesis in Liquid of Oxide, Metal‐Oxide Core‐Shells, and Doped Oxide Nanoparticles

Diverse nanomaterials synthesized by laser ablation of pure metals in liquids

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Formation, aging and self-assembly of regular nanostructures from laser ablation of indium and zinc in water

Cited by 6 publications

References 51 publications

Laser-Generated InOx/ZrO2 Catalysts for CO2 Hydrogenation: Role of In Situ Fragmentation and Ripening Control

Laser-Generated InOx/ZrO2 Catalysts for CO2 Hydrogenation: Role of In Situ Fragmentation and Ripening Control

Room‐Temperature Laser Synthesis in Liquid of Oxide, Metal‐Oxide Core‐Shells, and Doped Oxide Nanoparticles

Diverse nanomaterials synthesized by laser ablation of pure metals in liquids

Contact Info

Product

Resources

About

Laser-Generated InO_x/ZrO₂ Catalysts for CO₂ Hydrogenation: Role of In Situ Fragmentation and Ripening Control

Laser-Generated InO_x/ZrO₂ Catalysts for CO₂ Hydrogenation: Role of In Situ Fragmentation and Ripening Control