Formic acid. for zero-carbon technologies

 CO2H2 = CO + H20. 

 H2O + CO = H2 + CO2.

CO2H2 = CO2 + H2.. 

Here CO2H2 can be produced by direct reaction CO2 + H2 = CO2H2. 

References. 

[1] Direct CO2 + H2 = formic acid, davidjud.blogspot.com/2024/05, posted on May 13, 2024