Temperature Effect on Hydrogen Generation by the Reaction of -Al2O3-Modified Al Powder with Distilled Water
Abstract:The effect of temperature on the reaction of -Al2O3-modified Al powders with distilled water was investigated. It was found that by increasing the temperature up to 40°C, the hydrogen generation speed can be enhanced one to two orders of magnitude relative to that at room temperature (18°C). X-ray analyses and transmission electron microscopy observations revealed that the reaction by-product at 40°C is bayerite (Al(OH)3), which is chemically neutral. The present results imply that slightly increasing the temperature is an effective way to get the target hydrogen generation speed.
Document Type: Communications
Affiliations: National Institute for Materials Science, Tsukuba, Ibaraki 305-0047, Japan
Publication date: 2005-10-01