Increased hydrogen partial pressure suppresses and reverses hydrogen evolution during Pd catalysed electrolysis of CO2,Sustainable Energy & Fuels

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Increased hydrogen partial pressure suppresses and reverses hydrogen evolution during Pd catalysed electrolysis of CO2
Sustainable Energy & Fuels ( IF 5.6 ) Pub Date : 2020-06-30 , DOI: 10.1039/d0se00731e
Martijn J. W. Blom _{1,

2,

3,

4,

5} , Wim P. M. van Swaaij _{1,

2,

3,

4,

5} , Guido Mul _{3,

4,

5,

6,

7} , Sascha R. A. Kersten _{1,

2,

3,

4,

5}

Affiliation

Electrochemical reduction of CO₂ on a Pd/C cathode produces formate and hydrogen at low overpotentials. We report on an innovative, effective approach to prevent hydrogen formation. By applying 4 bar partial hydrogen pressure, hydrogen evolution can be fully avoided at −0.05 V vs. RHE and 1 bar partial CO₂ pressure.

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