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

被引：15
作者：
Dong, Qiang [1 ]
Yin, Shu [1 ]
Yoshida, Mizuki [1 ]
Wu, Xiaoyong [1 ]
Liu, Bin [1 ]
Miura, Akira [2 ]
Takei, Takahiro [2 ]
Kumada, Nobuhiro
Sato, Tsugio [1 ]
机构：
[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, Sendai, Miyagi 9808577, Japan
[2] Univ Yamanashi, Grad Sch Med & Engn, Dept Res Interdisciplinary, Kofu, Yamanashi 4008511, Japan
来源：
MATERIALS RESEARCH BULLETIN | 2015年 / 69卷
基金：
日本学术振兴会;
关键词：
Alkaline earth metal; Tin oxide; Hollow nanospheres; Solvothermal; Oxygen storage; PALLADIUM-ALUMINA CATALYST; CEO2-ZRO2; SOLID-SOLUTIONS; THERMAL-STABILITY; CERIA; CAPACITY; NANOPARTICLES; BEHAVIOR; REDOX; CEO2;
D O I：
10.1016/j.materresbull.2014.11.018
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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 center dot 5H(2)O and A(NO3)(2)center dot xH(2)O (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 degrees C for 20 h with a BET surface area of 61 m(2) g(-1) exhibited the considerably high OSC of 457 mu mol-O g(-1) and good thermal stability. Alkaline earth metal doped tin oxide has the potential to be a novel oxygen storage material. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：116 / 119
页数：4
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