Electrochemical CO₂ Reduction to CO

CO2 + 2H+ + 2e− → CO + H2O

개요

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.

참여 물질

역할 물질 계수 상태
반응물 Carbon Dioxide CO₂ 1 (g)
생성물 Carbon Monoxide CO 1 (g)
생성물 Water H₂O 1 (l)

일상 속 예시

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

산업적 중요성

이산화탄소를 유용한 화학 원료인 일산화탄소로 전환하여 피셔-트롭쉬 합성 등에 활용합니다. 재생에너지와 결합하면 탄소 중립 화학 공정 실현이 가능합니다.

성질

유형
Electrochemical
가역 반응
예
에너지
흡열
ΔH
257.0 kJ/mol
촉매
Gold or silver catalyst

관련 반응

Electrolytic Production of Chlorate Electrorefining of Copper Alkaline Battery Discharge Anodizing of Aluminum Cathodic Protection (Zinc Sacrificial Anode) Chlor-Alkali Electrolysis Chrome Electroplating Nickel-Metal Hydride Battery Sodium-Sulfur Battery Electrolysis of Water

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).