HER (Hydrogen Evolution Reaction)

The Hydrogen Evolution Reaction (HER) is a chemical process where hydrogen gas is produced from water. This typically occurs during electrolysis, where an electric current splits water molecules (H2O) into hydrogen (H2) and oxygen (O2). The reaction is significant for clean energy solutions, as hydrogen can be used as a fuel source. Efficient HER is crucial for harnessing renewable energy, as it allows excess electricity from sources like wind or solar power to be stored in the form of hydrogen, which can later be used for energy, reducing reliance on fossil fuels.