Photoreduction of CO₂ to Methanol

CO2 + 3H2O → CH3OH + 3/2 O2

概要

Photocatalysts can reduce CO₂ to methanol using sunlight and water, mimicking photosynthesis to produce liquid fuel. Copper-modified TiO₂ and other semiconductor catalysts have shown promising results. This artificial photosynthesis approach could simultaneously address CO₂ emissions and produce renewable fuel.

参加者

役割 物質 係数 状態
反応物 Carbon Dioxide CO₂ 1 (g)
反応物 Water H₂O 3 (l)
生成物 Methanol CH₃OH 1 (l)

日常の例

Researchers envision solar fuel stations that could convert atmospheric CO₂ into methanol fuel using sunlight and water.

産業上の重要性

CO₂光還元による太陽光-燃料変換はカーボンニュートラルな液体燃料を製造する可能性を持つ活発な研究分野である。

特性

タイプ
Photochemical
可逆的
いいえ
エネルギー
吸熱性
ΔH
727.0 kJ/mol
触媒
Cu/TiO₂ photocatalyst

関連する反応

Photochemical Smog Formation (NO₂ Photolysis) Photochromism of Spiropyran Chlorophyll Fluorescence Photodegradation of Methylene Blue by TiO₂ Photodissociation of Chlorine Gas Silver Bromide Photodecomposition Cis-Trans Isomerization of Retinal Photosynthesis Ozone Formation by UV Light Dye-Sensitized Solar Cell (Grätzel Cell)

Frequently Asked Questions

What is the equation for Photoreduction of CO₂ to Methanol?
The balanced equation is: CO₂ + 3H₂O → CH₃OH + 3/2 O₂.
What type of reaction is Photoreduction of CO₂ to Methanol?
Photoreduction of CO₂ to Methanol is a photochemical reaction.
Is Photoreduction of CO₂ to Methanol exothermic or endothermic?
Photoreduction of CO₂ to Methanol is endothermic (absorbs energy). The enthalpy change (ΔH) is 727.0 kJ/mol.
What conditions are needed for Photoreduction of CO₂ to Methanol?
This reaction requires a catalyst (Cu/TiO₂ photocatalyst).