| 초록 |
Conversion of solar energy into liquid fuels has been an important research topic. Many artificial photosynthetic devices have been built, yet all fall short of the biological machinery. In the current presentation, a major problem in artificial photosynthesis will be discussed: deficient understanding of the complex oxygen evolution reaction (OER). By use of a titration experiment, the redox processes occurring at the surface of metal oxides during OER were investigated. Expansions of the analytical technique described here to other reactions will be briefly discussed. In the second part of the presentation, an electrochemical synthetic strategy toward nanoparticles of various stoichiometries will be explained. This technique results in a size and composition controlled nanoparticles that are directly anchored on an electrode and fully surfactant-free. Such strategy is expected to find broad appeal in the preparation of next generation electro- and photoelectro- catalysts. |
