Ln0.5A0.5MnO3 (Ln=Lanthanide, A=Ca, Sr) Perovskites Exhibiting Remarkable Performance in the Thermochemical Generation of CO and H2 from CO2 and H2O

被引：101
作者：
Dey, Sunita [1 ,2 ]
Naidu, B. S. [1 ,2 ]
Rao, C. N. R. [1 ,2 ]
机构：
[1] Jawaharlal Nehru Ctr Adv Sci Res, Int Ctr Mat Sci, Sheikh Saqr Lab, Chem & Phys Mat Unit,New Chem Unit, Bangalore 560064, Karnataka, India
[2] Jawaharlal Nehru Ctr Adv Sci Res, CSIR Ctr Excellence Chem, Bangalore 560064, Karnataka, India
来源：
CHEMISTRY-A EUROPEAN JOURNAL | 2015年 / 21卷 / 19期
关键词：
energy conversion; perovskite manganites; syngas; thermochemical CO2 splitting; water splitting; LANTHANUM MANGANITE PEROVSKITES; WATER-SPLITTING CYCLE; HYDROGEN-PRODUCTION; THERMODYNAMIC ANALYSIS; SOLAR HYDROGEN; RARE-EARTH; 2-STEP; CERIA; MN; DISSOCIATION;
D O I：
10.1002/chem.201500442
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Perovskite oxides of the Ln(0.5)A(0.5)MnO(3) (Ln=lanthanide, A=Sr, Ca) family have been investigated for the thermochemical splitting of H2O and CO2 to produce H-2 and CO respectively. The amounts of O-2 and CO produced strongly depend on the size of the rare earth ions and alkaline earth ions. The manganite with the smallest rare earth possessing the highest distortion and size disorder as well as the smallest tolerance factor, gives out the maximum amount of O-2, and, hence, the maximum amount of CO. Thus, the best results are found with Y0.5Sr0.5MnO3, which possesses the highest distortion and size disorder. Y0.5Sr0.5MnO3 shows remarkable fuel production activity even at the reduction and oxidation temperatures as low as 1200 degrees C and 900 degrees C, respectively.
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收藏
页码：7077 / 7081
页数：5
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