Solar-driven photoelectrochemical reduction of carbon dioxide to methanol at CuInS₂ thin film photocathode

详细信息    查看全文

• 作者：Jiongliang Yuan^a ; ^{yuanjiongliang@163.com} ; Cunjiang Hao^b ; ^{haocunjjiang63@126.com}
• 关键词：Carbon dioxide ; Methanol ; Solar-driven ; Photoelectrochemical reduction ; CuInS2 thin film ; Cu&ndash ; In alloy
• 刊名：Solar Energy Materials and Solar Cells
• 出版年：2013
• 出版时间：January, 2013
• 年：2013
• 卷：108
• 期：Complete
• 页码：170-174
• 全文大小：754 K

文摘

The reduction of CO₂ into solar fuel is not only beneficial to the reduction of CO₂ emission, but also beneficial to the release of energy shortage. In this study, a solar-driven photoelectrochemical reduction reaction of CO₂ to methanol is conducted using a chalcopyrite p-CuInS₂ thin film as a photocathode. The CuInS₂ thin film is fabricated by electrodeposition of Cu-In alloy layer followed by sulfurization. With pyridinium ion as the co-catalyst, the photoelectrochemical reduction of CO₂ to methanol can occur at the overpotential of 20 mV with the faradaic efficiency of 97 % .