The novel perovskite-type Ni-doped Sr0.92Y0.08TiO3 as a reforming biogas (CH4+CO2) for H2 production

Byeong Wan Kwon, Joo Hyeng Oh, Ghun Sik Kim, Sung Pil Yoon, Jonghee Han, Suk Woo Nam and Hyung Chul Ham

Applied Energy, 2018, vol. 227, issue C, 213-219

Abstract: In this study, novel perovskite-type Sr0.92Y0.08TiO3-based catalysts were investigated for hydrogen production by the dry reforming of biogas (comprising CH4 and CO2). Ni-doped Sr0.92Y0.08TiO3 catalysts with improved catalytic activity were grown using the Pechini method. The prepared catalysts were characterized using X-ray diffraction to check for impurities introduced in the perovskite structure by doping method. The reforming of methane over perovskite-based catalysts has been extensively investigated; however, detailed understanding of the activating catalytic sites under different conditions is still lacking. To understand the details of the activating catalyst mechanism, transmission electron microscopy, temperature-programed reduction, X-ray photoelectron spectroscopic (XPS) analysis were performed under different activating conditions. XPS analysis of 5mol% Ni-doped Sr0.92Y0.08TiO3 revealed that the H2-activated catalyst lost active lattice oxygen sites and Ni sites due to formation of Ni hydroxide. Thus, the H2-activated catalyst has lower catalytic activity than the N2-activated one.

Keywords: Biogas; Dry reforming; Pechini method; Ni-doped Sr0.92Y0.08TiO3 perovskite catalyst and activating catalysts (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0306261917309777
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:227:y:2018:i:c:p:213-219

Ordering information: This journal article can be ordered from
http://www.elsevier.com/wps/find/journaldescription.cws_home/405891/bibliographic
http://www.elsevier. ... 405891/bibliographic

DOI: 10.1016/j.apenergy.2017.07.105

Access Statistics for this article

Applied Energy is currently edited by J. Yan

More articles in Applied Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().