Photocatalytic properties of plasma-synthesized zinc oxide and tin-doped zinc oxide (TZO) nanopowders and their applications as transparent conducting films

Murali, Arun; Sohn, Hong Yong

doi:10.1007/s10854-018-9633-8

Cited by 16 publications

(5 citation statements)

References 58 publications

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“…A similar device was also used by Murali and Sohn [ 36 ] except that they used zinc nitrate powder of typical dimension 50 µm as the precursor. The discharge power was 15 kW and the Ar the carrier gas.…”

Section: Plasma Methods For Synthesizing Zno Nanoparticlesmentioning

confidence: 99%

Recent Advances in the Plasma-Assisted Synthesis of Zinc Oxide Nanoparticles

et al. 2021

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An overview of recent work on the low-temperature plasma-assisted synthesis of zinc oxide (ZnO) nanoparticles is presented and interpreted in terms of gas-phase and surface reactions with illustrated examples. The thermodynamical nonequilibrium conditions allow the formation of chemically reactive species with a potential energy of several eV, which readily interact with the Zn precursors and initiate reactions leading to the formation of nanoparticles or nanowires. The high-quality nanowires were synthesized from Zn powders only upon interaction with moderately ionized plasma in a narrow range of plasma parameters. This technique is promising for the synthesis of large quantities of nanowires with aspect ratios well above 10, but the exact range of parameters remains to be determined. Apart from the ex situ techniques, the ZnO nanoparticles can be synthesized by depositing a film of precursors (often Zn salts or Zn-containing organometallic compounds) and exposing them to oxygen plasma. This technique is useful for the synthesis of well-adherent ZnO nanoparticles on heat-sensitive objects but requires further scientific validation as it often leads to the formation of a semicontinuous ZnO film rather than nanoparticles. Both low-pressure and atmospheric plasmas are useful in converting the precursor film into ZnO nanoparticles despite completely different mechanisms.

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Section: Plasma Methods For Synthesizing Zno Nanoparticlesmentioning

confidence: 99%

Recent Advances in the Plasma-Assisted Synthesis of Zinc Oxide Nanoparticles

et al. 2021

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“…Obviously, numerous planar Sn-O CrystEngComm Paper layers in SnO 2 (ZnO:Sn) m superlattice lead to the emergence of the AM at 549 cm −1 . On the other side, the 670 cm −1 peak has been mentioned in several works as being related to Sndoped ZnO products; [47][48][49] thus, the new AM mode at 673 cm −1 could be associated with Sn-doped Zn slabs in the SnO 2 (ZnO:Sn) m superlattice nanoparticles. For practical applications, gas sensors must not only display a strong response, but also a good selectivity for the targeted gas.…”

Section: Resultsmentioning

confidence: 99%

Novel SnO₂(ZnO:Sn)_m superlattice nanoparticles for ultra-low ppb-level H₂S detection

Huang

et al. 2022

CrystEngComm

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“…Further, XPS results of the O 1s region for supported Ru samples were analyzed. It is noted that two contributions in the fine O 1s spectra at ∼530.4 and ∼532.5 eV were associated with lattice oxygen species (O I ) and ionic oxygen species (O II ) adsorbed on the surface oxygen vacancies, , respectively. Correspondingly, the surface fraction of O II species in total O species increased in the following order: Ru-0 (0.20) < Ru-0.9 (0.24) < Ru-2.7 (0.29) < Ru-4.7 (0.34) (Table ), confirming the existence of surface-abundant oxygen vacancies related to defective Mo 5+ -O v -Mo 6+ structures and interfacial Ru δ+ -O v -Mo 5+ sites in supported Ru samples with high Mo contents.…”

Section: Resultsmentioning

confidence: 99%

MoO_x-Decorated ZrO₂ Nanostructures Supporting Ru Nanoclusters for Selective Hydrodeoxygenation of Anisole to Benzene

Liang

Liu²,

Fan

et al. 2021

ACS Appl. Nano Mater.

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Currently, the hydrodeoxygenation (HDO) process of biomass-derived phenolics is regarded as one of the most promising methods of upgrading to produce various high-value-added chemical raw feeds (e.g., benzene, toluene, and xylene) as well as potentially applied bio-oils with less oxygen content. In this work, a series of surface MoO 3decorated nanosized tetragonal zirconia (t-ZrO 2 ) supports were utilized to immobilize Ru nanoclusters for the aqueous-phase HDO of anisole. Structural characterizations revealed the presence of uniformly dispersed Ru nanoclusters and defective MoO x clusters on the t-ZrO 2 , thereby forming strong Ru-MoO x interactions and thus the generation of abundant interfacial Ru δ+ species and oxygen vacancies. As-fabricated supported Ru nanoclusters as the catalyst could achieve a much higher benzene selectivity of ∼84.7% than the Mo-free supported Ru one (25.1%) in the HDO of anisole under mild reaction conditions, despite a lowered anisole conversion, which was associated with the cooperative effect between active Ru 0 nanoclusters and favorable interfacial Ru δ+ -O v -Mo 5+ sites (O v = oxygen vacancy), thereby enhancing the adsorption of the methoxy group in anisole and the further demethoxylation to form benzene. Our present findings provide a promising way to regulate the selectivity of deoxygenated products in the HDO of biomass-derived phenolics via finely tuning active metal−support interfacial sites.

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Photocatalytic properties of plasma-synthesized zinc oxide and tin-doped zinc oxide (TZO) nanopowders and their applications as transparent conducting films

Cited by 16 publications

References 58 publications

Recent Advances in the Plasma-Assisted Synthesis of Zinc Oxide Nanoparticles

Recent Advances in the Plasma-Assisted Synthesis of Zinc Oxide Nanoparticles

Novel SnO₂(ZnO:Sn)_m superlattice nanoparticles for ultra-low ppb-level H₂S detection

MoO_x-Decorated ZrO₂ Nanostructures Supporting Ru Nanoclusters for Selective Hydrodeoxygenation of Anisole to Benzene

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Photocatalytic properties of plasma-synthesized zinc oxide and tin-doped zinc oxide (TZO) nanopowders and their applications as transparent conducting films

Cited by 16 publications

References 58 publications

Recent Advances in the Plasma-Assisted Synthesis of Zinc Oxide Nanoparticles

Recent Advances in the Plasma-Assisted Synthesis of Zinc Oxide Nanoparticles

Novel SnO2(ZnO:Sn)m superlattice nanoparticles for ultra-low ppb-level H2S detection

MoOx-Decorated ZrO2 Nanostructures Supporting Ru Nanoclusters for Selective Hydrodeoxygenation of Anisole to Benzene

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Novel SnO₂(ZnO:Sn)_m superlattice nanoparticles for ultra-low ppb-level H₂S detection

MoO_x-Decorated ZrO₂ Nanostructures Supporting Ru Nanoclusters for Selective Hydrodeoxygenation of Anisole to Benzene