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Synthesis, characterization and hydrogen sensing properties of nanosized colloidal rhodium oxides prepared by Pulsed Laser Ablation in water
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XRD and XPS results show that ablation of Rh in water leads to the production of mixed Rh/Rh-oxide phases (RhO2 and Rh2O3), whereas in ethanol essentially metallic Rh NPs are produced.
“As discussed in [212], XRD and XPS results show that ablation of Rh in water leads to the production of mixed Rh/Rh-oxide phases (RhO2 and Rh2O3), whereas in ethanol essentially metallic Rh NPs are produced, in agreement with [216].”
From Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications (2020) · cites this paper as [212]
LAL allows for the production of colloidal Rh suspensions in a suitable liquid medium, which can be employed for the fabrication of nanostructured Rh substrates with SPR peak in the 250-320 nm region.
“Under proper experimental conditions, LAL allows for the production of colloidal Rh suspensions in a suitable liquid medium [212,213,214], which can be employed for the fabrication of nanostructured Rh substrates with SPR peak in the 250–320 nm region.”
From Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications (2020) · cites this paper as [212]
The size and density distributions of LAL-synthesized Rh NPs are markedly affected by the liquid (water or ethanol) selected for LAL.
“These LAL-synthesized Rh NPs are almost spherical, and their size and density distributions are markedly affected by the liquid (water, or ethanol) selected for LAL: Rh NPs obtained in water are smaller than those obtained in ethanol.”
From Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications (2020) · cites this paper as [212]
The size of Rh NPs is affected by the chemical interactions that occur during the ablation process, in turn determined by the liquid environment.
“The size of the NPs is affected by the chemical interactions that occur during the ablation process, in turn determined by the liquid environment.”
From Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications (2020) · cites this paper as [212]
Fazio et al. demonstrated the sensing properties of Rh nanostructures toward low concentration of hydrogen in air.
“By fabricating a simple conductometric platform with Rh NPs produced by LAL in water, Fazio et al. [212] have demonstrated the sensing properties of Rh nanostructures toward low concentration of hydrogen in air.”
From Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications (2020) · cites this paper as [212]
LAL-synthesized Rh NPs are almost spherical.
“These LAL-synthesized Rh NPs are almost spherical, and their size and density distributions are markedly affected by the liquid (water, or ethanol) selected for LAL: Rh NPs obtained in water are smaller than those obtained in ethanol.”
From Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications (2020) · cites this paper as [212]
The time-dependence of the SERS signal of R6G discloses the photo-induced degradation of the analyte adsorbed on the Rh/Rh-oxide NPs under 457 nm laser irradiation.
“The time-dependence of the SERS signal of R6G discloses the photo-induced degradation of the analyte adsorbed on the Rh/Rh-oxide NPs under the 457 nm laser irradiation (Figure 18c,d).”
From Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications (2020) · cites this paper as [212]
LAL-synthesized Rh/Rh-oxide NPs arrays suitably arranged as thin films show a moderate SERS enhancement factor.
“LAL-synthesized Rh/Rh-oxide NPs arrays suitably arranged as thin films show a moderate SERS enhancement factor.”
From Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications (2020) · cites this paper as [212]
The extinction spectra of Rh colloids show the contribution associated to the SPR of the Rh NPs below 400 nm.
“The extinction spectra of the two colloids show the contribution associated to the SPR of the Rh NPs below 400 nm but, for the samples prepared in ethanol, an additional absorption feature is observed around 340 nm, which may be ascribed to Rh-C bonds [215].”
From Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications (2020) · cites this paper as [212]
Rh NPs obtained in water are smaller than those obtained in ethanol.
“Rh NPs obtained in water are smaller than those obtained in ethanol.”
From Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications (2020) · cites this paper as [212]
The SERS enhancement factor of R6G on Rh NPs compared to bare glass under the same conditions is about 20, which shows the feasibility of using Rh NPs prepared by LAL as SERS substrates.
“By comparing the SERS spectrum of R6G on Rh NPs with the Raman spectrum acquired on bare glass under the same conditions (Figure 18a,b), the resulting enhancement factor is about 20, which shows the feasibility of using Rh NPs prepared by this technique as SERS substrates.”
From Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications (2020) · cites this paper as [212]
After 110 s of irradiation, the strongest characteristic peak of R6G (1650 cm−1) almost completely disappears; the same peak weakens by a factor of 0.4 after 22 s of irradiation.
“Then, after 110 s of irradiation, the strongest characteristic peak of R6G (1650 cm−1) almost completely disappears (the same peak weakens by a factor of 0.4 after 22 s of irradiation).”
From Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications (2020) · cites this paper as [212]
A prompt and well-resolved SERS response is observed after just 3 s of irradiation.
“Remarkably, a prompt and well-resolved SERS response is observed after just 3 s of irradiation.”
From Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications (2020) · cites this paper as [212]
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Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications
Fazio, E., Gökce, B., De Giacomo, A., Meneghetti, M., Compagnini, G., Tommasini, M., Waag, F., Lucotti, A., Zanchi, C. G., Ossi, P. M., et al. (2020) · Nanomaterials · doi:10.3390/nano10112317 · Cited by 346
“As discussed in [212], XRD and XPS results show that ablation of Rh in water leads to the production of mixed Rh/Rh-oxide phases (RhO2 and Rh2O3), whereas in ethanol essentially metallic Rh NPs are produced, in agreement with [216].”
BackgroundResultSelf-citation
Metadata
- Authors
- Fazio, E., Leonardi, S. G., Santoro, M., Donato, N., Neri, G., & Neri, F.
- Affiliations
- University of Messina (IT)
- Corresponding author
- Fazio, E.
- Venue
- Sensors and Actuators B: Chemical
- Publisher
- Elsevier BV
- Published
- 2018-06
- Volume
- 262
- Pages
- 79-85
- ISSN
- 0925-4005 (ISSN-L)
- OpenAlex
- W2793037053
- Cited by
- 14
- References
- 0
- Citations by year
- 2026: 1 · 2025: 1 · 2024: 1 · 2022: 3 · 2021: 3 · 2020: 3 · 2019: 2
- FWCI
- 0.77
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Sensors and Actuators B Chemical (publishedVersion)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Gas Sensing Nanomaterials and Sensors
- Physical Sciences › Materials Science › Materials Chemistry › Catalytic Processes in Materials Science
- Physical Sciences › Materials Science › Materials Chemistry › Laser-Ablation Synthesis of Nanoparticles
- Keywords
- rhodium oxide, colloidal nanoparticles, pulsed laser ablation in liquid, hydrogen detection, conductometric gas sensors, thin films, drop casting, annealing, hydrogen selectivity
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