TY - JOUR
T1 - Partial Oxidation of Methane to Synthesize Gas over La1-xSr x Co0.8Fe0.2O3 ± δ Perovskite
AU - Aliyatulmuna, Adilah
AU - Perry Burhan, R. Y.
AU - Fansuri, Hamzah
AU - Murwani, Irmina K.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2019
Y1 - 2019
N2 - Catalytic partial oxidation of methane into syngas has been investigated over a series of La1-xSr x Co0.8Fe0.2O3 ± δ perovskite powder (x = 0.0; 0.1; 0.2; 0.3; 0.4) in a continuous flow reactor. Characterization studies of this powder by XRD showed that the incorporation of more Sr (x) increased the lattice parameter and transformed broad to single, sharp peak of La1-xSr x Co0.8Fe0.2O3. The performance of syngas formation from methane without the presence of molecular oxygen was determined by the ratio of H2/CO in the range of 750-950 °C. The performance correlated with thermogravimetric analysis. At a low temperature (750 °C), the CH4 conversions over La1-xSrxCo0.8Fe0.2O3 ± δ were affected by the crystallite size, whereas at a high temperature (950 °C), it was influenced by the mobility of oxygen ions coming from bulk. The weight loss in the range of 455-1100 °C due to the reduction of Fe3+ to Fe0 had a reverse effect on H2/CO ratio. Among all of the powder catalysts tested at 950 °C, LaCo0.8Fe0.2O3 ± δ had the largest Fe3+ reduction to Fe0 and the lowest ratio of H2/CO.
AB - Catalytic partial oxidation of methane into syngas has been investigated over a series of La1-xSr x Co0.8Fe0.2O3 ± δ perovskite powder (x = 0.0; 0.1; 0.2; 0.3; 0.4) in a continuous flow reactor. Characterization studies of this powder by XRD showed that the incorporation of more Sr (x) increased the lattice parameter and transformed broad to single, sharp peak of La1-xSr x Co0.8Fe0.2O3. The performance of syngas formation from methane without the presence of molecular oxygen was determined by the ratio of H2/CO in the range of 750-950 °C. The performance correlated with thermogravimetric analysis. At a low temperature (750 °C), the CH4 conversions over La1-xSrxCo0.8Fe0.2O3 ± δ were affected by the crystallite size, whereas at a high temperature (950 °C), it was influenced by the mobility of oxygen ions coming from bulk. The weight loss in the range of 455-1100 °C due to the reduction of Fe3+ to Fe0 had a reverse effect on H2/CO ratio. Among all of the powder catalysts tested at 950 °C, LaCo0.8Fe0.2O3 ± δ had the largest Fe3+ reduction to Fe0 and the lowest ratio of H2/CO.
UR - http://www.scopus.com/inward/record.url?scp=85065650222&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/515/1/012040
DO - 10.1088/1757-899X/515/1/012040
M3 - Conference article
AN - SCOPUS:85065650222
SN - 1757-8981
VL - 515
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012040
T2 - International Conference on Condensed Matters and Advanced Materials 2018, IC2MAM 2018
Y2 - 5 September 2018
ER -