Gomez Federico J V, Chumanov George, Silva Maria Fernanda, Garcia Carlos D
Instituto de Biología Agrícola de Mendoza (IBAM-CONICET), Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo Mendoza Argentina.
Department of Chemistry, Clemson University 211 S. Palmetto Blvd Clemson SC 29634 USA
RSC Adv. 2019 Oct 18;9(58):33657-33663. doi: 10.1039/c9ra07430a.
The conversion of CO into useful chemicals can lead to the production of carbon neutral fuels and reduce greenhouse gas emissions. A key technological challenge necessary to enable such a process is the development of substrates that are active, cost effective, and selective for this reaction. In this regard, the reduction of CO electrochemical means is one of the most attractive alternatives but still requires rather unique electrodes. Considering the potential of this approach, this report describes a one-step methodology for the synthesis of carbon electrodes derived from simple paper and modified with various metallic nanoparticles. Upon a preliminary selection based on the catalytic activity towards CO reduction, the electrodes containing CuNPs were further characterized by Raman spectroscopy, and electrical/electrochemical techniques. These electrodes were then applied for the electrochemical reduction of CO, leading to the formation of compounds with one carbon atom (formic acid), two carbon atoms (ethenone), three carbon atoms (propanoic acid) and four carbon atoms (butanol and butanoic acid).
将一氧化碳转化为有用的化学品可实现碳中和燃料的生产并减少温室气体排放。实现这一过程所需的一项关键技术挑战是开发对该反应具有活性、成本效益高且具有选择性的底物。在这方面，通过电化学方法还原一氧化碳是最具吸引力的替代方案之一，但仍需要相当独特的电极。考虑到这种方法的潜力，本报告描述了一种一步法合成由简单纸张衍生并经各种金属纳米颗粒改性的碳电极的方法。在基于对一氧化碳还原的催化活性进行初步筛选后，通过拉曼光谱以及电学/电化学技术对含铜纳米颗粒的电极进行了进一步表征。然后将这些电极应用于一氧化碳的电化学还原，从而形成含有一个碳原子的化合物（甲酸）、两个碳原子的化合物（乙烯酮）、三个碳原子的化合物（丙酸）和四个碳原子的化合物（丁醇和丁酸）。
