Electrochemical CO₂ Reduction to CO

CO₂ + 2H⁺ + 2e⁻ → CO + H₂O

Visão geral

Electrochemical reduction of CO₂ at a metal cathode can selectively produce CO (on Au/Ag), formate (on Sn/Pb/Bi), or hydrocarbons (on Cu). CO + H₂ (syngas) can then be converted to fuels via Fischer-Tropsch synthesis. This carbon capture and utilization (CCU) approach could close the carbon cycle using renewable electricity.

Participantes

Papel	Substância	Coeficiente	Estado
Reagente	Carbon Dioxide CO₂	1	(g)
Produto	Carbon Monoxide CO	1	(g)
Produto	Water H₂O	1	(l)

Exemplo do cotidiano

Startups like Twelve (formerly Opus 12) use CO₂ electrolysis to produce jet fuel and chemicals from captured carbon dioxide.

Importância industrial

A redução eletroquímica de CO₂ é um campo em rápido desenvolvimento com potencial para produzir combustíveis sintéticos e matérias-primas a partir de dióxido de carbono. Empresas como a Siemens e a Haldor Topsoe desenvolvem demonstradores comerciais.

Propriedades

Tipo: Electrochemical
Reversível: Sim
Energia: Endotérmico
ΔH: 257,0 kJ/mol
Catalisador: Gold or silver catalyst

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Frequently Asked Questions

What is the equation for Electrochemical CO₂ Reduction to CO?

The balanced equation is: CO₂ + 2H⁺ + 2e⁻ → CO + H₂O.

What type of reaction is Electrochemical CO₂ Reduction to CO?

Electrochemical CO₂ Reduction to CO is a electrochemical reaction. It is reversible under certain conditions.

Is Electrochemical CO₂ Reduction to CO exothermic or endothermic?

Electrochemical CO₂ Reduction to CO is endothermic (absorbs energy). The enthalpy change (ΔH) is 257.0 kJ/mol.

What conditions are needed for Electrochemical CO₂ Reduction to CO?

This reaction requires a catalyst (Gold or silver catalyst).