Synthesis of new ferrite, Al-Cu ferrite, and its oxygen deficiency for solar H2 generation from H2O

被引：29

作者：

Kaneko, H. ^{[1
]}

Yokoyama, T. ^{[1
]}

Fuse, A. ^{[1
]}

Ishihara, H. ^{[1
]}

Hasegawa, N. ^{[1
]}

Tamaura, Y. ^{[1
]}

机构：

[1] Tokyo Inst Technol, Res Ctr Carbon Recycling & Energy, Meguro Ku, Tokyo 1528552, Japan

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2006年 / 31卷 / 15期

关键词：

Al-Cu ferrite; solar hydrogen; oxygen deficiency; solar thermal energy;

D O I：

10.1016/j.ijhydene.2006.03.008

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：

The solar H-2 generation with the oxygen deficiency of Al-Cu ferrite (AlaCubFecO4, 3a + b + 3c = 8) has been studied for application to conversion of solar thermal energy to chemical energy of H-2. The Al-Cu ferrite was newly synthesized with different Al:Cu:Fe mole ratios from the co-precipitate of their nitrates. The Al-Cu ferrite (Al:Cu:Fe mole ratios = 0.43:0.43:2.14) prepared at 1473 K was the single phase of the spinel type compound. The cyclic two-step water splitting reactions (02 releasing and H-2 generation reactions) using the Al-Cu ferrite (Al:Cu:Fe = 0.43:0.43:2.14) gave the O-2 and H-2 yields of 1.6 and 0.37%, respectively. In the 02 releasing reaction, the Al-Cu ferrite changes to the oxygen deficient form of spinel structure. The temperature (T = 1673 K) of the O-2 releasing reaction with Al-Cu ferrite was lowered by ca. 100 K than those of Zn ferrite and Ni ferrite systems. (c) 2006 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：2256 / 2265

页数：10

共 19 条

[1] Solar water splitting for hydrogen production with monolithic reactors [J].