Das Santu, Balaraju Tuniki, Barman Soumitra, Sreejith S S, Pochamoni Ramudu, Roy Soumyajit
Eco-Friendly Applied Materials Laboratory, College of Chemistry, Central China Normal University, Wuhan, China.
Eco-Friendly Applied Materials Laboratory, Department of Chemical Sciences, Materials Science Centre, Mohanpur, Indian Institute of Science Education & Research, Kolkata, India.
Front Chem. 2018 Nov 2;6:514. doi: 10.3389/fchem.2018.00514. eCollection 2018.
Photocatalytic CO reduction in water is one of the most attractive research pursuits of our time. In this article we report a giant polyoxometalate {Mo} based homogeneous catalytic system, which efficiently reduces CO to formic acid with a maximum turnover number (TON) of 27,666, turnover frequency (TOF) of 4,611 h and external quantum efficiency of the reaction is 0.6%. The catalytic system oxidizes water and releases electrons, and these electrons are further utilized for the reduction of CO to formic acid. A maximum of 8.3 mmol of formic acid was observed with the loading of 0.3 μmol of the catalyst. Our catalyst material is also stable throughout the reaction. The starting materials for this experiment are CO and HO and the end products are HCOOH and O. The formic acid formed in this reaction is an important H gas carrier and thus significant in renewable energy research.
水中光催化CO还原是当今最具吸引力的研究方向之一。在本文中，我们报道了一种基于巨型多金属氧酸盐{Mo}的均相催化体系，该体系能有效地将CO还原为甲酸，最大周转数（TON）为27,666，周转频率（TOF）为4,611 h，反应的外量子效率为0.6%。该催化体系氧化水并释放电子，这些电子进一步用于将CO还原为甲酸。在负载0.3 μmol催化剂时，观察到最多生成8.3 mmol甲酸。我们的催化剂材料在整个反应过程中也很稳定。本实验的起始原料是CO和H₂O，最终产物是HCOOH和O₂。该反应中生成的甲酸是一种重要的氢载体，因此在可再生能源研究中具有重要意义。
