Iowa State University Research Foundation, Inc.

Shalabh Gupta

Vitalij K Pecharsky

Ihor Hlova

Marek Pruski

David C Jiles

Magundappa Ravi L Hadimani

Takeshi Kobayashi

Andra Castle

Shane Harstad

In some examples, a method of forming alane (AlH), the method comprising reacting one of: 1) a MAlH, wherein M is an alkali metal; 2) alkali-metal hydride, MH; or 3) alkali-metal with one or more aluminum halides (AlX, where X is a halogen), via a mechanochemical process, to form the alane, wherein the reaction is substantially solvent free and carried out in an environment with a temperature between approximately 250 K and approximately 330 K.

Mechanochemical synthesis of alane

A particle usable as Tand Tcontrast agents is provided. The particle is a gadolinium silicide (GdSi) particle that is ferromagnetic at temperatures up to 290 K and is less than 2 &#x3bc;m in diameter. An MRI contrast agent that includes a plurality of gadolinium silicide (GdSi) particles that are less than 1 &#x3bc;m in diameter is also provided. A method for creating gadolinium silicide (GdSi) particles is also provided. The method includes the steps of providing a GdSibulk alloy; grinding the GdSibulk alloy into a powder; and milling the GdSibulk alloy powder for a time of approximately 20 minutes or less.

Room temperature ferromagnetic gadolinium silicide nanoparticles

A method is provided for making alkali metal hydrides by mechanochemically reacting alkali metal and hydrogen gas under mild temperature (e.g room temperature) and hydrogen pressure conditions without the need for catalyst, solvent, and intentional heating or cooling.

Method of making alkali metal hydrides

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Ames, IA, United States of America

Shalabh Gupta