每年出版 4 期
ISSN 打印: 1093-3611
ISSN 在线: 1940-4360
Indexed in
OPTICAL EMISSION SPECTROSCOPY OF A SUPERSONIC LOW-PRESSURE PLASMA REACTOR USED TO SYNTHESIS SOFC CATHODES THIN LAYERS
摘要
A low pressure plasma reactor equipped with a supersonic nozzle was employed to synthesize thin perovskite layers La1-xSrx(Mn, Co)O3±δ on the Solid Oxide Fuel Cell (SOFC) electrolyte from a solution containing nitrates. To determine the role of plasma species in transformation of nitrates into perovskite, Optical Emission Spectroscopy (OES) measurements have been performed on the Ar/O2 discharge during the deposition. At each injection of nitrates precursors, OES have detected species such as Ar*, O from the dissociation of O2, and OHº from the decomposition of water. The electronic temperature (2.5 eV), the excitation temperature of Ar (8900 K) and the rotational temperature of OHº (360 K) have been measured. The results have confirmed that the nitrates are transformed mainly by oxidization reactions at low temperature using O and OHº. This plasma process allows a thin perovskite layer formation without undesirable phases (La(OH)3...), that are generally produced in thermal processes.
-
Rousseau F., Awamat S., Nikravech M., Morvan D., Amouroux J., Deposit of dense YSZ electrolyte and porous NiO–YSZ anode for SOFC device by a low pressure plasma process, Surface and Coatings Technology, 202, 4-7, 2007. Crossref
-
Rousseau F., Awamat S., Morvan D., Prima F., Mevrel R., Yttria-stabilized zirconia thick coatings deposited from aqueous solution in a low pressure plasma reactor, Surface and Coatings Technology, 203, 5-7, 2008. Crossref
-
Rousseau F., Fourmond C., Prima F., Vidal Serif M.H., Lavigne O., Morvan D., Chereau P., Deposition of thick and 50% porous YpSZ layer by spraying nitrate solution in a low pressure plasma reactor, Surface and Coatings Technology, 206, 7, 2011. Crossref
-
Rousseau F., Awamat S., Morvan D., Amouroux J., Mevrel R., Deposition of thick oxide layers from solutions in a low pressure plasma reactor, Surface and Coatings Technology, 202, 4-7, 2007. Crossref
-
Bello Idris Temitope, Zhai Shuo, Zhao Siyuan, Li Zheng, Yu Na, Ni Meng, Scientometric review of proton-conducting solid oxide fuel cells, International Journal of Hydrogen Energy, 46, 75, 2021. Crossref
-
Bello Idris Temitope, Zhai Shuo, He Qijiao, Cheng Chun, Dai Yawen, Chen Bin, Zhang Yuan, Ni Meng, Materials development and prospective for protonic ceramic fuel cells, International Journal of Energy Research, 46, 3, 2022. Crossref