The Korea Advanced Institute of Science and Technology Satellite 4 is an ultraviolet telescope in a satellite. It is funded by the Korea Aerospace Research Institute, and was launched on 27 September 2003 into an Earth orbit with a height between 675 and 695 km. Wikipedia.
PubMed | Korea Advanced Institute of Science and Technology
Type: Journal Article | Journal: Angewandte Chemie (International ed. in English) | Year: 2016
An ultrathin (ca. 2nm) amorphous FeOOH overlayer was deposited conformally on a hematite nanostructure by a simple solution-based precipitation method, to generate an oxygen evolution cocatalyst for efficient solar water splitting. This uniform and highly conformal coating of the ultrathin metal oxyhydroxide is rare and is distinguished from the layers prepared by other conventional methods. With the FeOOH overlayer as the cocatalyst, the water oxidation photocurrent of hematite increased by a factor of approximately two and the onset potential shifted in the cathodic direction by 0.12V under 1sun illumination. The enhanced performance was attributed to the improved water oxidation kinetics and the passivation of the surface states of the hematite.