Advanced Semiconductor-Electrocatalyst Systems for Photoelectrochemical Hydrogen and Oxygen Production in Microgravity Environment

摘要

Efficient artificial photosynthesis systems are currently realized as catalyst- and surface-functionalized photovoltaic tandem and triple junction devices enabling photoelectrochemical water oxidation while simultaneously recycling CO_2 and generating hydrogen as a solar fuel for storable renewable energy. The successful implementation of an efficient photoelectrochemical (PEC) water splitting cell is not only a highly desirable approach to solving the energy challenge on earth: an effective air revitalization system generating a constant flux of O_2 while simultaneously recycling CO_2 and providing a sustainable fuel supply is also essential for the International Space Station and long-term space missions, where a regular resupply from earth is not possible.