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Hydrogen electrolysis

Hydrogen electrolysis. Hydrogen electrolysis is the process of running an electrical current through water (H 2 O) and separating the hydrogen from the oxygen. Process is the REVERSE of what occurs in a fuel cell. (-) (+). 9v. + / -. e. -. e. -. e. -. H 2. O 2. e. -.

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Hydrogen electrolysis

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  1. Hydrogen electrolysis Hydrogen electrolysis is the process of running an electrical current through water (H2O) and separating the hydrogen from the oxygen. Process is the REVERSE of what occurs in a fuel cell (-) (+)

  2. 9v + / - e - e - e - H2 O2 e - Electrolysis Cell Fuel Cell H2 O2 (H2O) H2O Anode Cathode Anode Cathode Fuel cell: Hydrogen and oxygen gases flow into the cell producing water and electricity. Electrolysis cell: Hydrogen and oxygen gases produced when electricity flows through an electrolyte containing water.

  3. Electrochemical reactions • Cathode – hydrogen reduced • 4H2O + 4e- 2H2 + 4OH- • Anode – hydrogen oxidized • 2H2O  O2 + 4H+ + 4e- • Overall reactions • 2H2O  O2 + 2H2 • 4OH- + 4H+ 4H2O • Overall reaction requires electrical energy added

  4. Today’s Lab Investigate bench top scale hydrolysis to produce Hydrogen Fuel

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