De-NOz reactor and NOz sensor using In3+-doped SnP2O7 with PtRhBa/C electrode
An electrochemical cell using an In3+-doped SnP2O7 proton conductor as the electrolyte exhibited comparable NO reduction and sensing properties at around 250℃. NO was reduced to N2 most effectively when using a PtRhBa/C cathode by applying current to the cell. High electrocatalytic activity was maintained even in the presence of CO2 and H2O. PtRhBa/C was also found to be the most effective electrode material for NQx sensing. The sensor exhibited electromotive force (EMF) response towards the positive direction with increasing NO and NO2 concentrations. The polarization curves of NO/NO2 and water vapor indicated that the sensing mechanism is based on the mixed potential. The effects of added Rh and Ba to the Pt/C electrode were explained in terms of selective reduction and adsorption of NO/NO2 over the electrode surface, respectively.
de-Noz reactor Noz sensor Proton conductor Sn0.9In0.1P2O7
Masahiro Nagao Takeshi Yoshii Yousuke Namekata Shinya Teranishi Mitsuru Sano Atsuko Tomita Takashi Hibino
Graduate School of Environmental Studies, Nagoya University, Nagoya 464-8601, Japan Graduate School of Environmental Studies, Nagoya University, Nagoya 64-8601, Japan National Institute of Advanced Industrial Science and Technology (AIST), Nagoya 463-8560, Japan
国际会议
The 16th International Conference on Solid State Ionics(第十六届国际固态离子学会议)
上海
英文
1655-1661
2007-07-01（万方平台首次上网日期，不代表论文的发表时间）