The synthesis of a novel α phosphorus containing spin trap, DEPDMPO(5 diethoxy Phosphoryl 2, 5 dimethyl 1 pyrroline \%N\% oxide) and the evaluation of its ability to spin trap the hydroxyl and the superoxide anion ra...The synthesis of a novel α phosphorus containing spin trap, DEPDMPO(5 diethoxy Phosphoryl 2, 5 dimethyl 1 pyrroline \%N\% oxide) and the evaluation of its ability to spin trap the hydroxyl and the superoxide anion radicals were described in the present article. The ability to trap an active superoxide anion radical generated in the photo system Ⅱ(PSII) and the stability of their spin adduct of DEPDMPO as well as three previously reported traps DMPO, DEPMPO and M 3PO were comparatively analyzed according to their chemical structures. In addition, the effects of 2 methyl and \%α\% phosphoryl substituted analogues of DMPO on the stabilities of the corresponding spin adduts were systematically展开更多
BaxCe0.8Y0.2O3-α(x=1.03,1,0.98) solid electrolyte samples show a single phase of orthorhombic perovskite of BaCeO3. The oxide ion conduction and transport number were detected in the temperature of 600～1000℃by elec...BaxCe0.8Y0.2O3-α(x=1.03,1,0.98) solid electrolyte samples show a single phase of orthorhombic perovskite of BaCeO3. The oxide ion conduction and transport number were detected in the temperature of 600～1000℃by electrochemical oxygen permeation (oxygen pumping), and compared with the results from the oxygen concentration cell. The relation between the ingredient of Ba and oxide ion conduction was also researched. It was found that these electrolytes exhibited the mixed oxide ionic and electronic hole conduction under the experimental temperature and oxygen gas. The oxide ion transport numbers are 0.1～0.6, which are close to the results of the oxygen concentration cell. They increase as the decrease of Ba content in the samples.展开更多
Synthesis of a novel α phosphorus containing spin trap, DEPPEPO[5 (diethoxyphosphoryl) 5 phenylethyl 1 pyrroline] N oxide and evaluation of its ability to spin trap the hydroxyl and the superoxide anion radicals were...Synthesis of a novel α phosphorus containing spin trap, DEPPEPO[5 (diethoxyphosphoryl) 5 phenylethyl 1 pyrroline] N oxide and evaluation of its ability to spin trap the hydroxyl and the superoxide anion radicals were described in the present article. The ability for trapping an active superoxide anion radicals generated in the HX/XO system and the stability of their spin adduct of DEPPEPO were analyzed. In addition, the effects of 5 phenylethyl and 5 phenyl substituted analogues of DMPO on the stereochemistry of the corresponding spin adducts were systematically illustrated.展开更多
文摘The synthesis of a novel α phosphorus containing spin trap, DEPDMPO(5 diethoxy Phosphoryl 2, 5 dimethyl 1 pyrroline \%N\% oxide) and the evaluation of its ability to spin trap the hydroxyl and the superoxide anion radicals were described in the present article. The ability to trap an active superoxide anion radical generated in the photo system Ⅱ(PSII) and the stability of their spin adduct of DEPDMPO as well as three previously reported traps DMPO, DEPMPO and M 3PO were comparatively analyzed according to their chemical structures. In addition, the effects of 2 methyl and \%α\% phosphoryl substituted analogues of DMPO on the stabilities of the corresponding spin adduts were systematically
文摘BaxCe0.8Y0.2O3-α(x=1.03,1,0.98) solid electrolyte samples show a single phase of orthorhombic perovskite of BaCeO3. The oxide ion conduction and transport number were detected in the temperature of 600～1000℃by electrochemical oxygen permeation (oxygen pumping), and compared with the results from the oxygen concentration cell. The relation between the ingredient of Ba and oxide ion conduction was also researched. It was found that these electrolytes exhibited the mixed oxide ionic and electronic hole conduction under the experimental temperature and oxygen gas. The oxide ion transport numbers are 0.1～0.6, which are close to the results of the oxygen concentration cell. They increase as the decrease of Ba content in the samples.
文摘Synthesis of a novel α phosphorus containing spin trap, DEPPEPO[5 (diethoxyphosphoryl) 5 phenylethyl 1 pyrroline] N oxide and evaluation of its ability to spin trap the hydroxyl and the superoxide anion radicals were described in the present article. The ability for trapping an active superoxide anion radicals generated in the HX/XO system and the stability of their spin adduct of DEPPEPO were analyzed. In addition, the effects of 5 phenylethyl and 5 phenyl substituted analogues of DMPO on the stereochemistry of the corresponding spin adducts were systematically illustrated.
