UV laser ablation of GdCa4O(BO3)3 (GdCOB) investigated by Fourier transform ion cyclotron resonance mass spectrometry

Chéty-Gimondo, Rachel; Aubriet, Frédéric; Millon, Éric; Müller, Jean-François

doi:10.1002/rcm.1710

Cited by 4 publications

(3 citation statements)

References 38 publications

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“…Alternatively, mass spectrometry coupled to laser ablation (LA-MS) provides information on atomic and cluster species present in the gas phase. When considering the ionic fraction of species ejected in vacuum under laser irradiation, relevant information may be obtained on the atomic and high mass cluster species present in the gas phase above the target after laser-matter interactions [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Study of Cluster Anions Generated by Laser Ablation of Titanium Oxides: A High Resolution Approach Based on Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

Barthen¹,

Millon

Aubriet³

2011

J. Am. Soc. Mass Spectrom.

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FTICR cell confirm this assessment. Tandem mass spectrometry experiments were also performed in sustained off-resonance irradiation collision-induced dissociation (SORI-CID) mode. Three fragmentation pathways were observed: (1) elimination of water molecules, (2) O 2 loss for radical anions, and (3) fission of the cluster. Density functional theory (DFT) calculations were performed to explain the experimental data.

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Section: Introductionmentioning

confidence: 99%

Study of Cluster Anions Generated by Laser Ablation of Titanium Oxides: A High Resolution Approach Based on Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

Barthen¹,

Millon

Aubriet³

2011

J. Am. Soc. Mass Spectrom.

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“…Sputter desorption can employ either projectiles (neutral or charged atoms or molecules) or laser pulses. In the projectile category, Gianotto and Groenewold investigated a variety of aluminum, silicon, and chromium oxides, generating small-to-medium sized cluster ions with rhenium tetroxide (ReO 4 − ) as the projectile. − Laser ablation is more commonly used, and Aubriet − and Gaumet − have used it for forming alumina, silica, and d-block oxyanions. Laser irradiation has also enjoyed extensive use for forming metal oxide clusters by targeting the laser on a rotating metal rod as pioneered by several groups, − enabling study of a wide variety of transition metal oxides; this approach tends to form hypo-oxidized species, and the extent of oxidation can be manipulated by seeding the ablation region with oxygen.…”

Section: Introductionmentioning

confidence: 99%

Cerium Oxyhydroxide Clusters: Formation, Structure, and Reactivity

Aubriet¹,

Gaumet²,

Jong

et al. 2009

J. Phys. Chem. A

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Cerium oxyhydroxide cluster anions were produced by irradiating ceric oxide particles by using 355 nm laser pulses that were synchronized with pulses of nitrogen gas admitted to the irradiation chamber. The gas pulse stabilized the nascent clusters that are largely anhydrous [Ce(x)O(y)] ions and neutrals. These initially formed species react with water, principally forming oxohydroxy species that are described by the general formula [Ce(x)O(y)(OH)(z)](-) for which all the Ce atoms are in the IV oxidation state. In general, the extent of hydroxylation varies from a value of three OH per Ce atom when x = 1 to a value slightly greater than 1 for x >or= 8. The Ce(3) and Ce(6) species deviate significantly from this trend: the x = 3 cluster accommodates more hydroxyl moieties compared to neighboring congeners at x = 2 and 4. Conversely, the x = 6 cluster is significantly less hydroxylated than its x = 5 and 7 neighbors. Density functional theory (DFT) modeling of the cluster structures shows that the hydrated clusters are hydrolyzed, and contain one-to-multiple hydroxide moieties, but not datively bound water. DFT also predicts an energetic preference for formation of highly symmetric structures as the size of the clusters increases. The calculated structures indicate that the ability of the Ce(3) oxyhydroxide to accommodate more extensive hydroxylation is due to a more open, hexagonal structure in which the Ce atoms can participate in multiple hydrolysis reactions. Conversely the Ce(6) oxyhydroxide has an octahedral structure that is not conducive to hydrolysis. In addition to the fully oxidized (Ce(IV)) oxyhydroxides, reduced oxyhydroxides (containing a Ce(III) center) are also formed. These become more prominent as the size of the clusters increases, suggesting that the larger ceria clusters have an increased ability to accommodate a reduced Ce(III) moiety. In addition, the spectra offer evidence for the formation of superoxide derivatives that may arise from reaction of the reduced oxyhydroxides with dioxygen. The overall intensity of the clusters tends to monotonically decrease as the cluster size increases; however, this trend is interrupted at Ce(13), which is significantly more stable compared to neighboring congeners, suggesting formation of a dehydrated Keggin-type structure.

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“…It has mainly been suggested that large clusters and droplets are the major constituents of the ablated mass fraction 16. The role of laser parameters like wavelength, laser pulse duration, laser fluence, etc., is important and it has been discussed in several papers 17–20. In this work we have studied clusters formed during laser ablation using a 337 nm laser that is part of a commercial instrument.…”

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confidence: 99%

Laser ablation of ternary As‐S‐Se glasses and time‐of‐flight mass spectrometric study

Pangavhane

Houška

Wágner

et al. 2009

Rapid Comm Mass Spectrometry

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Ternary chalcogenide As-S-Se glasses, important for optics, computers, material science and technological applications, are often made by pulsed laser deposition (PLD) technology but the plasma composition formed during the process is mostly unknown. Therefore, the formation of clusters in a plasma plume from different glasses was followed by laser desorption ionization (LDI) or laser ablation (LA) time-of-flight mass spectrometry (TOF MS) in positive and negative ion modes. The LA of glasses of different composition leads to the formation of a number of binary As(p)S(q), As(p)Se(r) and ternary As(p)S(q)Se(r) singly charged clusters. Series of clusters with the ratio As:chalcogen = 3:3 (As(3)S(3)(+), As(3)S(2)Se(+), As(3)SSe(2)(+)), 3:4 (As(3)S(4)(+), As(3)S(3)Se(+), As(3)S(2)Se(2)(+), As(3)SSe(3)(+), As(3)Se(4)(+)), 3:1 (As(3)S(+), As(3)Se(+)), and 3:2 (As(3)S(2)(+), As(3)SSe(+), As(3)Se(2)(+)), formed from both bulk and PLD-deposited nano-layer glass, were detected. The stoichiometry of the As(p)S(q)Se(r) clusters was determined via isotopic envelope analysis and computer modeling. The structure of the clusters is discussed.

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UV laser ablation of GdCa₄O(BO₃)₃ (GdCOB) investigated by Fourier transform ion cyclotron resonance mass spectrometry

Cited by 4 publications

References 38 publications

Study of Cluster Anions Generated by Laser Ablation of Titanium Oxides: A High Resolution Approach Based on Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

Study of Cluster Anions Generated by Laser Ablation of Titanium Oxides: A High Resolution Approach Based on Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

Cerium Oxyhydroxide Clusters: Formation, Structure, and Reactivity

Laser ablation of ternary As‐S‐Se glasses and time‐of‐flight mass spectrometric study

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