Like photosynthesis in plants, we could turn CO2 into molecules that are essential for day-to-day life.
WAYS TO USE CO2:
- CO2 can be reacted with water and hydrogen to produce energy rich hydrogen gas and useful gas.
- Traditional electro catalysts cannot effectively convert co2 to co.
- That’s because a competing reaction, called the hydrogen evolution reaction (HER) or “water splitting,” takes precedence over the CO2 conversion reaction.
- Noble metals (gold and silver) overcomes the HER but they are cost effective.
- Single atoms of Nickel is used for the conversion of CO.
- Anchoring the Nickel atoms to graphene enabled to tune the catalyst and suppress HER.
ADVANTAGES OF NICKEL:
- Single atoms are usually unstable and tend to aggregate on the support.
- But the individual nickel atoms were distributed uniformly, which accounted for the excellent performance of the conversion reaction
- Used to convert CO2 to CO in a a cost effective way
- Nickel react with photons
- Send atom to higher energy states
- Gives maximum of 97% efficiency.
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