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.
| Original language | English |
|---|---|
| Journal | Applied Energy |
| DOIs | |
| Publication status | Accepted/In press - 2017 |
| Externally published | Yes |
Fingerprint
Keywords
- Biogas
- Dry reforming
- Ni-doped SrY.TiO perovskite catalyst and activating catalysts
- Pechini method
ASJC Scopus subject areas
- Civil and Structural Engineering
- Energy(all)
Cite this
The novel perovskite-type Ni-doped Sr0.92Y0.08TiO3 as a reforming biogas (CH4+CO2) for H2 production. / Kwon, Byeong Wan; Oh, Joo Hyeng; Kim, Ghun Sik; Yoon, Sung Pil; Han, Jonghee; Nam, SukWoo; Ham, Hyung Chul.
In: Applied Energy, 2017.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The novel perovskite-type Ni-doped Sr0.92Y0.08TiO3 as a reforming biogas (CH4+CO2) for H2 production
AU - Kwon, Byeong Wan
AU - Oh, Joo Hyeng
AU - Kim, Ghun Sik
AU - Yoon, Sung Pil
AU - Han, Jonghee
AU - Nam, SukWoo
AU - Ham, Hyung Chul
PY - 2017
Y1 - 2017
N2 - 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.
AB - 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.
KW - Biogas
KW - Dry reforming
KW - Ni-doped SrY.TiO perovskite catalyst and activating catalysts
KW - Pechini method
UR - http://www.scopus.com/inward/record.url?scp=85027246087&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85027246087&partnerID=8YFLogxK
U2 - 10.1016/j.apenergy.2017.07.105
DO - 10.1016/j.apenergy.2017.07.105
M3 - Article
AN - SCOPUS:85027246087
JO - Applied Energy
JF - Applied Energy
SN - 0306-2619
ER -