Comparative study of the activity of nickel ferrites for solar hydrogen production by two-step thermochemical cycles

被引：71

作者：

Fresno, Fernando ^{[1
]}

Yoshida, Tomoaki ^{[2
,3
]}

Gokon, Nobuyuki ^{[2
,3
]}

Fernandez-Saavedra, Rocio ^{[4
]}

Kodama, Tatsuya ^{[2
,3
]}

机构：

[1] CIEMAT PSA, Madrid 28040, Spain

[2] Niigata Univ, Dept Chem & Chem Engn, Nishi Ku, Niigata 9502181, Japan

[3] Niigata Univ, Ctr Transdisciplinary Res, Nishi Ku, Niigata 9502181, Japan

[4] CIEMAT, Div Chem, E-28040 Madrid, Spain

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2010年 / 35卷 / 16期

关键词：

Solar hydrogen; Thermochemical cycles; Ferrite; Solar energy; Hydrogen production; Supported materials; H-2; GENERATION; CHEMISTRY; HEAT; FE; CU;

D O I：

10.1016/j.ijhydene.2010.05.032

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this work, we compare the activity of unsupported and monoclinic zirconia supported nickel ferrites, calcined at two different temperatures, for solar hydrogen production by two-step water-splitting thermochemical cycles at low thermal reduction temperature. Commercial nickel ferrite, both as-received and calcined in the laboratory, as well as laboratory made supported NiFe2O4, are employed for this purpose. The samples leading to higher hydrogen yields, averaged over three cycles, are those calcined at 700 degrees C in each group (supported and unsupported) of materials. The comparison of the two groups shows that higher chemical yields are obtained with the supported ferrites due to better utilisation of the active material. Therefore, the highest activity is obtained with ZrO2-supported NiFe2O4 calcined at 700 degrees C. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.

引用

页码：8503 / 8510

页数：8

共 26 条

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