Abstract: A method for producing hydrogen by using different metals includes: providing a metal of lower reduction potential as an anode metal and a metal of higher reduction potential as a cathode metal, then immerse the anode metal and the cathode metal in an electrolyte, while the anode metal and the cathode metal can be combined with appropriate steps before or after being immersed in the electrolyte, whereby hydrogen and side-products generated from a reaction of electrochemistry caused by reduction potential difference between the different metals, that is, the method for producing hydrogen is through spontaneous chemical reaction without extra energy consumption.

Abstract: A method for producing hydrogen by using magnesium scrap is provided. First, adhering the melting magnesium scrap to platinum-coating titanium meshes, and putting the adhered meshes in an airtight reaction chamber, which is loaded with sodium chloride solution, to carry out a spontaneously hydrogen producing reaction. The gas produced by the reaction is then conducted to a low temperature exsiccator for condensing the vapor involved in the gas. Next, the gas is collected by a collector immediately. The apparatus comprises a sodium chloride solution container, an airtight reaction chamber, a low temperature exsiccator, and a gas collector. Ducts connect with each component and control the gas/solution pass in and out by using valves.

Abstract: A method for producing hydrogen by using different metals includes: providing a metal of lower reduction potential as an anode metal and a metal of higher reduction potential as a cathode metal, then immerse the anode metal and the cathode metal in an electrolyte, while the anode metal and the cathode metal can be combined with appropriate steps before or after being immersed in the electrolyte, whereby hydrogen and side-products generated from a reaction of electrochemistry caused by reduction potential difference between the different metals, that is, the method for producing hydrogen is through spontaneous chemical reaction without extra energy consumption.

Abstract: A method for producing hydrogen by using magnesium scrap is provided. First, adhering the melting magnesium scrap to platinum-coating titanium meshes, and putting the adhered meshes in an airtight reaction chamber, which is loaded with sodium chloride solution, to carry out a spontaneously hydrogen producing reaction. The gas produced by the reaction is then conducted to a low temperature exsiccator for condensing the vapor involved in the gas. Next, the gas is collected by a collector immediately. The apparatus comprises a sodium chloride solution container, an airtight reaction chamber, a low temperature exsiccator, and a gas collector. Ducts connect with each component and control the gas/solution pass in and out by using valves.