Hydrogen

What is the difference between Hydrogen Tech. & Hydrogen Fuel Cell Tech.?

1.) Hydrogen Fuel Cell is when the gas is introduced into a solid fuel or catalyst like aluminum oxide with oxygen. The reaction releases electrons (electricity 1.5 v) that can be used to run an electrical unit. This unit can be multiplied to get more power.

2.) Hydrogen can be combusted like any other gas, for combustion engines.

Units need to be constructed to produce the gas, either by electrolysis or chemical methods fairly easily.

Prof. Jerry Woodall PH.D. of Purdue University pulls hydrogen from water chemically. But has an obstacle called Dept. of Energy for some strange reason?