How to efficiently utilize clean and pollution-free solar energy has always been the goal of scientists all over the world.
Among them, the solar photocatalytic reaction can realize the process and mechanism of splitting water to generate hydrogen, oxygen and reducing carbon dioxide to generate solar fuel, that is, the separation and transfer of photogenerated charges in the photocatalytic reaction and the spatiotemporal complexity of participating in chemical reactions. This basis and key The core problem has long been a mystery to be solved.
After more than 20 years of hard work, academician Li Can and researcher Fan Fengtao of the Solar Energy Research Department of Dalian Institute of Chemical Physics, Chinese Academy of Sciences, through their self-developed series of sophisticated "cameras" and advanced "imaging" technologies, they have recently completed the research on photocatalyst nanoparticles. The photo-generated charge transfer has been probed in all time and space, revealing the complex multiple charge transfer mechanism, and the world's first "photographed" full-time image of the evolution of photo-generated charge transfer.
Chinese scientists took the lead in clarifying the essential relationship between photogenerated charge separation mechanism and photocatalytic water splitting efficiency, and uncovering the key mystery of solar photocatalytic reaction. ” published online, which can provide new understanding and research strategies for breaking through the “bottleneck” of solar photocatalytic reaction, and is expected to promote solar photocatalytic water splitting to produce solar fuel from theory to practical application.
(Reporter Sun Zifa video source Dalian Institute of Chemical Physics, Chinese Academy of Sciences)
Responsible editor: [Luo Pan]