Abstract
Various morphologies of SnO2 were successfully synthesized using a solution process. The porous structure SnO2 synthesized by sol-gel method using SiO2 microparticles as a template showed excellent specific surface area and oxygen storage capacity (OSC) even after annealing at 1000 °C for 20 h. Alkali earth metal ion doped SnO2 porous structure nanoparticles were also synthesized successfully by adding M(NO3)2·xH2O (M = Mg, Ca, Sr, Ba) to the reaction solution. The alkali earth metal ion doping greatly enhanced the thermal stability and OSC of SnO2. Especially, Sr2+ doped SnO2 with porous structure annealed at 1000 °C for 20 h possessed high BET surface area and exhibited a considerably high OSC and excellent thermal stability. Alkali earth metal ion doped SnO2 particles showed a great potential for application to a novel oxygen storage material.
Original language | English |
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Pages (from-to) | 271-276 |
Number of pages | 6 |
Journal | Journal of Alloys and Compounds |
Volume | 646 |
DOIs | |
Publication status | Published - 2015 Jun 29 |
Keywords
- Alkali earth metal ion
- Oxygen storage capacity (OSC)
- Porous structure
- Sol-gel
- Solvothermal synthesis
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry