Hydrogen production catalysts and associated systems and methods
An alkaline catalyst for hydrogen generation can comprise a first metal ( 102 ), a second metal ( 104 ), and hydroxide ( 104 ). When the alkaline catalyst is added to an aqueous solution containing a hydrogen generation metal, the aqueous solution produces at least 4 L of hydrogen per 5 gram of hydrogen generation metal per 15 minutes at a production temperature of 140° F. and at a pressure of 1 atm.
1. A method of producing hydrogen, comprising adding an alkaline catalyst to an aqueous solution containing a hydrogen generation metal, wherein the aqueous solution produces at least 4 L of hydrogen per 5 gram of hydrogen generation metal per 15 minutes at a production temperature of 140° F. and at a pressure of 1 atm, and wherein the alkaline catalyst is produced by mixing a first metal hydroxide with a second metal hydroxide in solution forming a hydroxide mixture, wherein the alkaline catalyst comprises at least the first metal, the second metal, and the hydroxide.
2. The method of claim 1 , further comprising initially heating the aqueous solution to a temperature of at least 120° F. at which point heating is no longer provided during production of hydrogen.
3. The method of claim 1 , wherein the first metal hydroxide and the second metal hydroxide are independently selected from the group consisting of: potassium hydroxide, sodium hydroxide, calcium hydroxide, magnesium hydroxide, lithium hydroxide, strontium hydroxide, and thorium hydroxide.
4. The method of claim 1 , further comprising subjecting the hydroxide mixture to a magnetic field of at least 5,000 gauss, heating the hydroxide mixture, and dehydrating the hydroxide mixture to form the alkaline catalyst.
5. The method of claim 1 , wherein the hydrogen generation metal is selected from the group of aluminum, magnesium, chromium, iron, cobalt, nickel, tin, lead, and alloys thereof, and mixtures thereof.
6. The method of claim 1 , wherein the hydrogen generation metal is aluminum.
7. The method of claim 1 , wherein the aqueous solution produces at least 8 L of hydrogen per 5 gram of hydrogen generation metal.
8. The method of claim 1 , wherein the first metal hydroxide is potassium hydroxide and the second metal hydroxide is sodium hydroxide.
9. The method of claim 1 , wherein the first metal and the second metal are present in the alkaline catalyst in a molar ratio ranging from 1:8 to 8:1.
10. The method of claim 1 , wherein the aqueous solution is an alkaline solution having a pH from 8 to 14.