Photocatalytic H₂-Production by Complexes Made from Earth Abundant Metals Stabilized by Phosphane-Ligands

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• 作者：Christof M. Strabler^a ; Johannes Prock^a ; Wolfgang Viertl^a ; Richard Pehn^a ; Alexander Weninger^a ; Holger Kopacka^a ; Dagmar Obendorf^b ; Peter Br&uuml ; ggeller^a ; ^{peter.brueggeller@uibk.ac.at" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Cu(I)-photosensitizer ; photocatalytic ; hydrogen production ; Co(III) water reduction precatalyst ; crystal structure of the catalyst
• 刊名：Materials Today: Proceedings
• 出版年：2016
• 出版时间：2016
• 年：2016
• 卷：3
• 期：2
• 页码：183-187
• 全文大小：290 K

文摘

Using the noble metal free combination of a copper based photosensitizer and a cobalt diimine-dioxime complex as water reduction catalyst we obtained a turnover number of 1184 with the help of triethylamine as sacrificial donor in the presence of triphenylphosphane (PPh₃). The exchange of PPh₃ with other tertiary phosphane ligands did not have a major impact on the activity. Furthermore we performed the crystal structure of the Co(I) intermediate, and we could characterize the catalytically active species of the system.