Laser ablation Fourier transform mass spectrometric investigation of coals and model materials

Greenwood, Paul F.; Strachan, Michael G.; El-Nakat, Hanna J.; Willett, Gary D.; Wilson, Michael; Attalla, Moetaz I.

doi:10.1016/0016-2361(90)90185-s

Cited by 42 publications

(19 citation statements)

References 15 publications

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“…A variety of polymers were shown to generate high-mass carbon cluster ions by both direct laser vaporization [47][48][49] and ion bombardment [50] (kiloelectronvolt SIMS and plasma desorption). The production of relatively abundant high-mass cluster ions (up to n > 600) was also reported in laser ablation/desorption studies of polycyclic aromatic hydrocarbons (PAHs) [51,52], coals [52], and benzene soot [53]. The mass spectra observed from these materials differ somewhat from the graphite laser vaporization spectra in that these other sources typically produce more abundant higher mass C~(n > 100) but the lower C; (n < 32) and enhanced C;:O and cto are either not observed or are quite dependent on experimental conditions.…”

Section: Prelude To Bulk Fullerenes: Production and Characterization mentioning

confidence: 72%

Mass spectrometry and fullerenes

McElvany

Ross

1992

J. Am. Soc. Mass Spectrom.

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This article presents, from amass spectrometry perspective, an historical account of research on gas-phase carbon clusters, which has led to the discovery of another form of carbon, fullerenes. In addition, more recent mass spectrometric studies on analysis of fullerene derivatives and synthesis of doped fullerenes are described. The early, strong evidence for certain "magic number" carbon clusters, most notably C60 (buckminsterfullerene), was obtained largely from mass spectrometric experiments. These studies led to the controversial postulation of the soccerball structure for C60, which provoked increased experimental and theoretical efforts. This research eventually resulted in the discovery of a simple method by which large quantities of fullerenes can be produced. The availability of these new, all-carbon molecules has motivated a broad range of synthetic and characterization studies that are expanding at a frenetic pace. Mass spectrometry not only played a critical role in the discovery of fullerenes but also now is crucial for determination of the unusual chemical and physical properties of fullerenes and fullerene-based materials.

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Section: Prelude To Bulk Fullerenes: Production and Characterization mentioning

confidence: 72%

Mass spectrometry and fullerenes

McElvany

Ross

1992

J. Am. Soc. Mass Spectrom.

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“…Greenwood et al réalisent en 1990 une étude importante concernant la formation des agrégats carbonés à partir de l'irradiation par un laser à 1064 nm de matériaux carbonés (graphite, charbon, lignite et hydrocarbures aromatiques-polycycliques). La distribution des agrégats observés par spectrométrie de masse à résonance cyclotronique des ions (FT/ICR : Fourier Transform Ion Cyclotron Resonance) montre que la formation de C6o est fonction du rang du charbon [8]. En 1991, Dance et al [9] appliquent cette méthode à l'étude des mésophases (structures charbonneuses préorientées) et à l'effet de l'atmosphère de confinement.…”

Section: Mise En Evidence Des Fullerenes Par Irradiation Laser Coupleunclassified

L'ablation/ionisation laser appliquée à la préparation et à l'étude des fullerènes

Millon¹,

Kubler²,

Mullert³

1997

Ann. Phys. Fr.

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Résumé : Les fullerènes (molécules carbonées sphéroïdales de formule générale C n ; n >20) sont classiquement obtenus dans les extraits de suies en mélange avec notamment des hydrocarbures aromatiques polycycliques (HAP) ce qui rend leur détection plus difficile. Nous avons développé une méthodologie d'analyse semi-quantitative par microsonde laser couplée à la spectrométrie de masse afin de caractériser les fullerènes "classiques" (CßO et C70)-Cette technique permet en outre de contribuer à l'analyse et à l'étude des fullerènes supérieurs (n>100) qui peuvent dans certains cas résulter de la coalescence de fullerènes plus petits.

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“…Kr/itschmer et al (1990) reported the presence of C6o in soot condensed from graphite in argon atmosphere which was identified by the observed isotope shifts of IR absorptions of 12C and 13C. Large variety of carbonaceous materials such as carbon films (Creasy and Breena 1990), polyamides (Creasy and Breena 1988;Campbell et al 1990), coal (Greenwood et al 1990), polycyclic aromatic hydrocarbonS (Lineman et al 1989) etc yield predominant C6o peak on laser vapourization.…”

Section: Introductionmentioning

confidence: 99%