section_path: Production/Water electrolysis
section_name: Water electrolysis
paragraph_text: Water electrolysis
  
  Electrolysis of water is a conceptually simple method of producing hydrogen.
  
  Commercial electrolyzers use nickel -based catalysts in strongly alkaline solution. Platinum is a better catalyst but is expensive.
  
  Electrolysis of brine to yield chlorine also produces hydrogen as a co-product.