Synthesis and Characterization of Ferrite Materials for Thermochemical CO2 Splitting Using Concentrated Solar Energy

被引：18

作者：

Ambrosini, Andrea ^{[1
]}

Coker, Eric N. ^{[1
]}

Rodriguez, Mark A. ^{[1
]}

Livers, Stephanie ^{[1
]}

Evans, Lindsey R. ^{[1
]}

Miller, James E. ^{[1
]}

Stechel, Ellen B. ^{[1
]}

机构：

[1] Sandia Natl Labs, Albuquerque, NM 87185 USA

来源：

ADVANCES IN CO2 CONVERSION AND UTILIZATION | 2010年 / 1056卷

关键词：

YTTRIA-STABILIZED ZIRCONIA; HYDROGEN-PRODUCTION; CRYSTALLINE; TRANSPORT; OXIDES;

D O I：

10.1021/bk-2010-1056.ch001

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 Sunshine to Petrol effort at Sandia aims to convert carbon dioxide and water to precursors for liquid hydrocarbon fuels using concentrated solar power. Significant advances have been made in the field of solar thermochemical CO2-splitting technologies utilizing yttria-stabilized zirconia (YSZ)-supported ferrite composites. Conceptually, such materials work via the basic redox reactions: Fe3O4 -> 3FeO + 0.5O(2) (Thermal reduction, >1350 degrees C) and 3FeO + CO2 -> Fe3O4 + CO (CO2-splitting oxidation, <1200 degrees C). There has been limited fundamental characterization of the ferrite-based materials at the high temperatures and conditions present in these cycles. A systematic study of these composites is underway in an effort to begin to elucidate microstructure, structure-property relationships, and the role of the support on redox behavior under high-temperature reducing and oxidizing environments. In this paper the synthesis, structural characterization (including scanning electron microscopy and room temperature and in-situ x-ray diffraction), and thermogravimetric analysis of YSZ-supported ferrites will be reported. (C) 2010 American Chemical Society

引用

页码：1 / 13

页数：13

共 22 条

[1] Thermochemical hydrogen production from a two-step solar-driven water-splitting cycle based on cerium oxides [J].