Perovskite-type oxides LaFe1−xCoxO3 for chemical looping steam methane reforming to syngas and hydrogen co-production

CATEGORY: STEAM METHANE REFORMING
Perovskite-type oxides LaFe1−xCoxO3 for chemical looping steam methane reforming to syngas and hydrogen co-production

Type	Journal Article
Author	Kun Zhao
Author	Fang He
URL	http://www.sciencedirect.com/science/article/pii/S0306261916300320
Volume	168
Pages	193-203
Publication	Applied Energy
Date	April 15, 2016
Abstract	Chemical looping steam methane reforming is an innovative technology for syngas and hydrogen production. It is important to find suitable oxygen carriers with good reactivity and high agglomeration resistance for this process. Researchers used the perovskite-type oxides LaFe1−xCoxO3 with x = 0.1, 0.3, 0.5, 0.7, 1.0 as oxygen carriers. They examined the influence of Co doping on the characteristics and the stabilities of these perovskite-type oxides by means of X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), hydrogen temperature-programmed reduction (H2-TPR), Brunauer–Emmett–Teller (BET) surface area and fixed-bed experiments. All the samples with various Co substitutions exhibited crystalline perovskite structure similar to LaFeO3. The surface adsorbed oxygen, beneficial to the complete oxidation of CH4, increased as the Co substitution increase.