Abstract
Metal organic framework MOF-177 is one of the most promising crystalline porous adsorbents for hydrogen adsorption. The effects of oxygen and water on the structural stability of MOF-177 are investigated by X-ray diffraction (XRD) and thermogravimetric analysis (TGA). A MOF-177 sample is exposed to ambient air for 5 weeks and monitored for its structural changes by XRD. The crystal structure of MOF-177 gradually changes fromhexagonal to orthogonal, and then to monoclinic in the 5-week period. The crystal structure of MOF-177 is completely destroyed after it is immersed in water. The weight loss of MOF-177 is negligible at temperatures below 330 °C in the presence of oxygen. However, MOF-177 totally converts to zinc oxide at 420°C.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 73-78 |
| Number of pages | 6 |
| Journal | Journal of Physical Chemistry Letters |
| Volume | 1 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2010 |
| Externally published | Yes |
Keywords
- Nanoparticles and nanostructures
ASJC Scopus subject areas
- General Materials Science
- Physical and Theoretical Chemistry