High-temperature mass spectrometry—I. Free vaporization studies of graphites

Wachi, Francis M.; Gilmartin, Donald E.

doi:10.1016/0008-6223(70)90109-0

Cited by 13 publications

(3 citation statements)

References 27 publications

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“…Carbon vapor consists of a mixture of carbon clusters C 1 , C 2 , C 3, etc. emitted from the very hot arc spot on the surface of graphite (T 4500 K) into the discharge gap (19,20). At proper quenching conditions, carbon clusters serve as …”

Section: Pure Nitrogen As Process Gasmentioning

confidence: 99%

Efficient Synthesis of Endohedral Metallofullerenes in 3-Phase Arc Discharge

Bezmelnitsyn

Davis

Zhou

2014

Fullerenes, Nanotubes and Carbon Nanostructures

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Endohedral metallofullerenes and, in particular, trimetallic nitride endohedral metallofullerenes exhibit unique properties that differentiate them from other carbon nanomaterials. Future applications of these species are restricted due to high cost and low productivity of existing synthesis methods, which are primarily based on the use of a Kr€ atschmer-Huffman two electrode in-line arc discharge reactor with packed electrodes. We have developed an alternative way for the synthesis of metallofullerenes that employs a 3-phase arc discharge system. The method has been validated and optimized for the synthesis of trimetallic nitride endohedral metallofullerenes, including Lu 3 N@C 80 . Experimental results have shown more than 400% increase in Lu 3 N@C 80 yield and productivity, while eliminating the use of high cost process gases (i.e., helium). Moreover, a metal oxide powder feed and solid graphite electrodes are introduced to avoid the need for packed electrodes and to extend reactor run times.

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Section: Pure Nitrogen As Process Gasmentioning

confidence: 99%

Efficient Synthesis of Endohedral Metallofullerenes in 3-Phase Arc Discharge

Bezmelnitsyn

Davis

Zhou

2014

Fullerenes, Nanotubes and Carbon Nanostructures

View full text Add to dashboard Cite

show abstract

“…o Wachi and Gilmartin [1970] These workers studied the free vaporization (Langmuir) behavior of various graphites using both double-focusing magnetic sector and timeof-flight mass spectrometric detection of the C-j to C 5 species.…”

Section: Literature Studies Of Laser-induced Vaporization Of Graphitementioning

confidence: 99%

“…2.4.2 Literature Summary, for the Period 1968Clarke and Fox [1969 o Indirect evidence of C 2 as the major species and « = 1 (3400 K). Wachi and Gilmartin [1970] o Relative intensities of C n + (n = 1 to 5) strongly dependent on time and sample form.…”

Section: Their Analysismentioning

confidence: 99%