| Abstract
| - We synthesized uniform-sized nanorods of transition metal phosphides from the thermaldecomposition of continuously delivered metal-phosphine complexes using a syringe pump. MnP nanorodswith dimensions of 8 nm × 16 nm and 6 nm × 22 nm sized were synthesized by the thermal decompositionof Mn−TOP complex, which was prepared from the reaction of Mn2(CO)10 and tri-n-octylphosphine (TOP),using a syringe pump with constant injection rates of 10 and 20 mL/h, respectively. When Co−TOP complex,which was prepared from the reaction of cobalt acetylacetonate and TOP, was reacted in a mixture solventcomposed of octyl ether and hexadecylamine at 300 °C using a syringe pump, uniform 2.5 nm × 20 nmsized Co2P nanorods were generated. When cobaltocene was employed as a precursor, uniform Co2Pnanorods with 5 nm × 15 nm were obtained. When Fe−TOP complex was added to trioctylphosphineoxide (TOPO) at 360 °C using a syringe pump and then allowed to age at 360 °C for 30 min, uniform-sizedFeP nanorods with an average dimension of 12 nm × 500 nm were produced. Nickel phosphide (Ni2P)nanorods with 4 nm × 8 nm were synthesized successfully by thermally decomposing the Ni−TOP complex,which was synthesized by reacting acetylacetonate [Ni(acac)2] and TOP. We measured the magneticproperties of these nanorods, and some of the nanorods exhibited different magnetic characteristicscompared to the bulk counterparts.
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