Alkaline earth metal doped tin oxide as a novel oxygen storage material

Qiang Dong, Shu Yin, Mizuki Yoshida, Xiaoyong Wu, Bin Liu, Akira Miura, Takahiro Takei, Nobuhiro Kumada, Tsugio Sato

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Alkaline earth metal doped tin oxide (SnO2) hollow nanospheres with a diameter of 50 nm have been synthesized successfully via a facial solvothermal route in a very simple system composed of only ethanol, acetic acid, SnCl4·5H2O and A(NO3)2·xH2O (A = Mg, Ca, Sr, Ba). The synthesized undoped SnO2 and A-doped SnO2 hollow nanospheres were characterized by the oxygen storage capacity (OSC), X-ray diffraction, transmission electron microscopy and the Brunauer-Emmet-Teller (BET) technique. The OSC values of all samples were measured using thermogravimetric-differential thermal analysis. The incorporation of alkaline earth metal ion into tin oxide greatly enhanced the thermal stability and OSC. Especially, Ba-doped SnO2 hollow nanospheres calcined at 1000°C for 20 h with a BET surface area of 61 m2 g-1 exhibited the considerably high OSC of 457 μmol-O g-1 and good thermal stability. Alkaline earth metal doped tin oxide has the potential to be a novel oxygen storage material.

Original languageEnglish
Pages (from-to)116-119
Number of pages4
JournalMaterials Research Bulletin
Volume69
DOIs
Publication statusPublished - 2015 Sep 1

Keywords

  • Alkaline earth metal
  • Hollow nanospheres
  • Oxygen storage
  • Solvothermal
  • Tin oxide

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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