Synthesis of morphology controlled SnO2 and its oxygen storage capacity

Mizuki Yoshida, Makoto Hamanaka, Qiang Dong, Shu Yin, Tsugio Sato

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)

    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 languageEnglish
    Pages (from-to)271-276
    Number of pages6
    JournalJournal of Alloys and Compounds
    Volume646
    DOIs
    Publication statusPublished - 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

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