Electrochemical CO₂ Reduction to CO

CO2 + 2H+ + 2e− → CO + H2O

概述

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.

参与者

角色 物质 系数 状态
反应物 Carbon Dioxide CO₂ 1 (g)
产物 Carbon Monoxide CO 1 (g)
产物 Water H₂O 1 (l)

日常示例

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

工业重要性

CO₂电化学还原是碳捕获与利用领域的研究热点，可将CO₂转化为合成气（CO+H₂）用于费托合成，生产化学品和燃料，实现碳循环利用。

属性

类型
Electrochemical
可逆
是
能量
吸热
ΔH
257.0 kJ/mol
催化剂
Gold or silver catalyst

相关反应

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).