The results of EPR studies of Ce3+ ions incorporated into single crystals of mixed yttrium-lutecium orthoaluminates Y1x LuxAlO3 (YLuAP, x=0.1, 0.3) are reported. In compositionally disordered YLuAP compounds, in comparison to YAlO3, new paramagnetic Ce3+ centers are found. These centers ...
YAlO 3 single crystalsrare-earth ionsEPR spectra of the Er 3+ , Nd 3+ , and Ce 3+ ions substituting for the Y 3+ ion in the YAlO 3 yttrium orthoaluminate lattice are studied. The EPR spectra of these rare-earth ions are described by a spin Hamiltonian of rhombic symmetry with an ...
Direct synthesis of Cerium (III)-incorporated SBA-15 mesoporous molecular sieves by two-step ...
A multifrequency Electron Paramagnetic Resonance (EPR) investigation of Ce 3 + impurities in PbWO 4 single-crystals at the conventional microwave frequency (CMF) (X-band: 9.43 GHz) and at the high frequencies/fields (HF) 95, 190 and 285 GHz was carried out. The resulting spectra are well ...
EPR lines assigned to the Ce3+ trigonal sites were found for the first time in cerium dioxide that contains a trace impurity of Mn2+. This finding indicates that manganese dopant facilitates the conversion of the oxidation state of Ce4+ to Ce3+ in nanocrystalline CeO2. Our results support ...
The optical spectral band positions and EPR g-factors (g, g) for the tetragonal Ce3+ centers in YPO4 and LuPO4 crystals with the zircon-structure are calculated using a complete diagonalization (of the energy matrix) method (CDM) related to 4f1 ions in tetragonal symmetry. In this method...
g-factors for the tetragonal Ce3+ centers in YPO4 and LuPO4 crystals]]>g-factors for the tetragonal Ce3+ centers in YPO4 and LuPO4 crystals]]>doi:10.1080/09500830902862412The optical spectral band positions and EPR g-factors (g‖ , g ⊥) for the tetragonal Ce3+ centers in YPO4 and...
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Investigations of the optical spectra and EPR g-factors for the tetragonal Ce3+ centers in YPO4 and LuPO4 crystals H. G. Liu,W. C. Zheng,W. L. Feng - 《Philosophical Magazine Letters》 - 2009 - 被引量: 18 Theoretical Investigation of the EPR g-factors for Yb3+ in YBa2Cu3O7-δ...
根据上述分析可知,过程①为Fe2O3与盐酸发生反应,选项A正确;结合过滤操作要点,实验中用到的玻璃仪器有烧杯、漏斗、玻璃棒,选项B正确;稀硫酸、H2O2、CeO2三者反应生成Ce2(SO4)3、O2和H2O,反应的离子方程式为6H++H2O2+2CeO22Ce3++O2↑+4H2O,选项C正确;D中发生的反应是4Ce(OH)3+O2+2H2O4Ce(OH)4,...