Graphite flouride from iodine intercalated graphitized carbon
First Claim
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1. A method of making graphite fluoride from graphitized carbon comprisingplacing graphitized carbon, powder consisting of iron metal, and solid iodine in a reactor,heating said reactor to a temperature between about 50°
- C. and about 150°
C. thereby forming iodine vapor whereby said graphitized carbon is in direct contact with said vapor, adding liquid bromine into said reactor while simultaneously adjusting the temperature of said reactor to a temperature between bromin'"'"'s boiling point of about 58°
C. and iodine'"'"'s boiling point of about 183°
C. so that bromine boils creating a mixture of bromine vapor and iodine vapor whereby said bromine-iodine mixture initiates an iodine and bromine intercalation,selectively capturing bromine vapor from said reactor by said iron metal powder while maintaining said iodine vapor in said reactor until the majority of the intercalants in the carbon is iodine,removing the graphitized carbon from the reactor after completion of the iodine intercalation and placing the same in air whereby a portion of the bromine and iodine evaporates, andexposing said iodine intercalated graphitized carbon to fluorine gas to produce graphite fluoride.
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Abstract
Graphite fluoride is produced from graphitized carbon. A bromine iodine mixture reacts with graphitized carbon to produce iodine intercalated graphitized carbon that is then exposed to fluorine.
36 Citations
1 Claim
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1. A method of making graphite fluoride from graphitized carbon comprising
placing graphitized carbon, powder consisting of iron metal, and solid iodine in a reactor, heating said reactor to a temperature between about 50° - C. and about 150°
C. thereby forming iodine vapor whereby said graphitized carbon is in direct contact with said vapor, adding liquid bromine into said reactor while simultaneously adjusting the temperature of said reactor to a temperature between bromin'"'"'s boiling point of about 58°
C. and iodine'"'"'s boiling point of about 183°
C. so that bromine boils creating a mixture of bromine vapor and iodine vapor whereby said bromine-iodine mixture initiates an iodine and bromine intercalation,selectively capturing bromine vapor from said reactor by said iron metal powder while maintaining said iodine vapor in said reactor until the majority of the intercalants in the carbon is iodine, removing the graphitized carbon from the reactor after completion of the iodine intercalation and placing the same in air whereby a portion of the bromine and iodine evaporates, and exposing said iodine intercalated graphitized carbon to fluorine gas to produce graphite fluoride.
- C. and about 150°
Specification
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Current AssigneeUnited States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration
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Original AssigneeUnited States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration
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InventorsHung, Ching-Cheh
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Primary Examiner(s)Lewis, Michael
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Assistant Examiner(s)Hendrickson, Stuart L.
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Application NumberUS07/884,097Time in Patent Office641 DaysField of Search423/445, 423/448, 423/460US Class Current423/448CPC Class CodesC01B 32/10 Carbon fluorides, e.g. [CF]...C01B 32/22 IntercalationD01F 11/129 Intercalated carbon- or gra...
