Thermodynamic analysis of mixed-metal ferrites for hydrogen production by two-step water splitting

被引：0
|
作者：
Allendorf, Mark D. [1 ]
Diver, Richard B., Jr. [1 ]
Miller, James E. [1 ]
Siegel, Nathan P. [1 ]
机构：
[1] Sandia Natl Labs, Microfluid Dept, Livermore, CA 94550 USA
来源：
Proceedings of the ASME International Solar Energy Conference | 2007年
关键词：
thermodynamic analysis; spinel; ferrite; redox cycle; hydrogen;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
A thermodynamic analysis of the two-step water splitting process for the production of hydrogen is reported in this paper. Calculations simulating the preparation of ferrite samples, their thermal reduction to form a mixture of metal oxides, and subsequent reoxidation with steam to produce hydrogen were performed. Mixed-metal spinel ferrites of the general form MFe2O4, where M = Co, Ni, or Zn, are compared with iron spinel, Fe3O4. The results indicate that of the four ferrites examined, nickel spinel has the most favorable combination of properties for use in two-step water splitting.
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页码：285 / 290
页数：6
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