Method of producing metal oxide nanorods
First Claim
1. A method of producing metal oxide nanorods comprising:
- generating a metal vapor in a furnace;
exposing a nanorod growth substrate to the metal vapor within a growth zone in the furnace for a sufficient time to form metal oxide nanorods on a surface of the nanorod growth substrate;
removing the nanorod growth substrate from the growth zone; and
collecting the metal oxide nanorods thus formed, each nanorod having a diameter between 1 and 200 nm.
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Abstract
Methods of preparing metal oxide nanorods are described. The metal oxide nanorods have diameters between 1 and 200 nm and aspect ratios between 5 and 2000. The methods include the steps of generating a metal vapor in a furnace, exposing the nanorod growth substrate to the metal vapor within a growth zone in the furnace for a sufficient time to grow metal oxide nanorods on a surface of the nanorod growth substrate, removing the nanorod growth substrate from the growth zone after the sufficient time to grow metal oxide nanorods on a surface of the nanorod growth substrate, and removing the metal oxide nanorods from the furnace. The methods can be used to prepared large quantities of metal oxide nanorods.
442 Citations
34 Claims
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1. A method of producing metal oxide nanorods comprising:
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generating a metal vapor in a furnace; exposing a nanorod growth substrate to the metal vapor within a growth zone in the furnace for a sufficient time to form metal oxide nanorods on a surface of the nanorod growth substrate; removing the nanorod growth substrate from the growth zone; and collecting the metal oxide nanorods thus formed, each nanorod having a diameter between 1 and 200 nm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 33)
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10. A method of producing metal oxide nanorods comprising:
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placing a metal vapor source in a furnace; providing a nanorod growth substrate in the furnace; heating the metal vapor source to a temperature between 500°
C. and 1600°
C.;maintaining the temperature for a sufficient time to form metal oxide nanorods on a surface of the nanorod growth substrate; and collecting the metal oxide nanorods thus formed, each nanorod having a diameter between 1 and 200 nm. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 34)
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25. A method of producing magnesium oxide nanorods comprising:
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placing a magnesium vapor source in a furnace; providing a nanorod growth substrate in the furnace; generating a magnesium vapor in the furnace by heating the magnesium vapor source to a temperature between 500°
C. and 1600°
C.;exposing the nanorod growth substrate to the magnesium vapor within a growth zone in the furnace for a sufficient time to form magnesium oxide nanorods on a surface of the nanorod growth substrate, the growth zone being a region in the furnace within a 100°
C. temperature drop of the magnesium vapor source;removing the nanorod growth substrate from the growth zone after the sufficient time to grow metal oxide nanorods on a surface of the nanorod growth substrate; and collecting the magnesium oxide nanorods thus formed. - View Dependent Claims (26, 27, 28, 29, 30)
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31. A method of producing metal oxide nanorods comprising:
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generating a metal vapor in a furnace; exposing a nanorod growth substrate to the metal vapor within a growth zone in the furnace for a sufficient time to form metal oxide nanorods on a surface of the nanorod growth substrate; removing the nanorod growth substrate from the growth zone; and collecting the metal oxide nanorods thus formed, wherein said metal oxide is magnesium oxide.
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32. A method of producing metal oxide nanorods comprising:
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placing a metal vapor source in a furnace; providing a nanorod growth substrate in the furnace; heating the metal vapor source to a temperature between 500°
C. and 1600°
C.;maintaining the temperature for a sufficient time to form metal oxide nanorods on a surface of the nanorod growth substrate; and collecting the metal oxide nanorods thus formed, wherein said metal oxide is magnesium oxide.
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Specification