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|a (TOE)ost5158353
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|a (TOE)5158353
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|a TOE
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|a GDWR
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|a 01
|2 edbsc
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|a E 1.99:doe/pc/90056-t4
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|a E 1.99:doe/pc/90056-t4
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|a Synthesis of single phase. alpha. -Fe, Fe sub 3 C and Fe sub 7 C sub 3 nano-particles by CO sub 2 laser pyrolysis technique
|h [electronic resource]
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| 260 |
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|a Washington, D.C. :
|b United States. Dept. of Defense ;
|a Oak Ridge, Tenn. :
|b distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
|c 1992.
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| 300 |
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|a Pages: (29 p) :
|b digital, PDF file.
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| 336 |
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|a text
|b txt
|2 rdacontent.
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| 337 |
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|a computer
|b c
|2 rdamedia.
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| 338 |
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|a online resource
|b cr
|2 rdacarrier.
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| 500 |
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|a Published through the Information Bridge: DOE Scientific and Technical Information.
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| 500 |
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|a 01/01/1992.
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| 500 |
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|a "doe/pc/90056-t4"
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| 500 |
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|a "DE92015654"
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|a Eklund, P.C.; Bi, X.X.
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| 520 |
3 |
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|a Iron-containing catalysts have been known to be useful in assisting the Fischer-Tropsch (FT) reaction for synthesizing hydrocarbons. However, it has been well recognized that iron catalyst are not stable during the reaction but converted into iron carbides. It is thus important to understand the role of the iron carbides in the catalytic reaction of the FT-synthesis. It has been found difficult to produce iron carbide nano-particles as a single phase, because iron carbide phases are only metastable under 1 atm pressure. Iron carbide bulk particles prepared so far are often contaminated with metallic iron, iron oxides and free carbon. In this study, we investigate the synthesis of iron carbide nano-particles using CO₂ laser pyrolysis technique. We show that this technique is successful in synthesizing α-Fe, Fe₃C and Fe₇C₃ nano-particles in their single phase with sizes in the range of 5--20nm. In particular, we have produced for the first time the Fe₇C₃ which has been known to exist but unable to be produced as a single phase. Furthermore, it is interesting that Fe₅C₂ which has carbon and iron ratio between Fe₃C and Fe₇C₃, is not seen in any run of our synthesis.
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| 536 |
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|b AC22-91PC90056.
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| 650 |
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7 |
|a Catalysts.
|2 local.
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| 650 |
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7 |
|a Thermochemical Processes.
|2 local.
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| 650 |
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7 |
|a Organic Compounds.
|2 local.
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| 650 |
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7 |
|a Fischer-tropsch Synthesis.
|2 local.
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| 650 |
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7 |
|a Iron Carbides.
|2 local.
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| 650 |
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|a Document Types.
|2 local.
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| 650 |
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|a Progress Report.
|2 local.
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| 650 |
|
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|a Iron Compounds.
|2 local.
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| 650 |
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|a Synthesis.
|2 local.
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| 650 |
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|a Carbides.
|2 local.
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| 650 |
|
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|a Decomposition.
|2 local.
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| 650 |
|
7 |
|a Transition Element Compounds.
|2 local.
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| 650 |
|
7 |
|a Catalytic Effects.
|2 local.
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| 650 |
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7 |
|a Oxygen Compounds.
|2 local.
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| 650 |
|
7 |
|a Lasers.
|2 local.
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| 650 |
|
7 |
|a Carbon Compounds.
|2 local.
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| 650 |
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7 |
|a Carbon Oxides.
|2 local.
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| 650 |
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|a Chemical Reactions.
|2 local.
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| 650 |
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|a Carbon Dioxide.
|2 local.
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| 650 |
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7 |
|a Oxides.
|2 local.
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| 650 |
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|a Pyrolysis.
|2 local.
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| 650 |
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7 |
|a Hydrocarbons.
|2 local.
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| 650 |
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|a Chalcogenides.
|2 local.
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| 650 |
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7 |
|a Coal, Lignite, And Peat.
|2 edbsc.
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| 710 |
2 |
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|a University of Kentucky.
|b Center for Applied Energy Research.
|4 res.
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| 710 |
1 |
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|a United States.
|b Department of Defense.
|4 spn.
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| 710 |
1 |
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|a United States.
|b Department of Energy.
|4 spn.
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| 710 |
2 |
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|a National Energy Technology Laboratory (U.S.).
|4 res.
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| 710 |
1 |
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|a United States.
|b Department of Energy.
|b Office of Scientific and Technical Information.
|4 dst.
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| 856 |
4 |
0 |
|u http://www.osti.gov/servlets/purl/5158353-DSjv5Y/
|z Online Access
|
| 907 |
|
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|a .b59667369
|b 03-06-23
|c 05-26-10
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| 998 |
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|a web
|b 05-26-10
|c f
|d m
|e p
|f eng
|g dcu
|h 0
|i 1
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| 956 |
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|a Information bridge
|
| 999 |
f |
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|i 639abc0d-ef1a-5070-860f-f1e679263039
|s bff9d0ba-bc76-57c6-b940-4d5fd3cea9d7
|
| 952 |
f |
f |
|p Can circulate
|a University of Colorado Boulder
|b Online
|c Online
|d Online
|e E 1.99:doe/pc/90056-t4
|h Superintendent of Documents classification
|i web
|n 1
|
