e) Eu的3d3/2和3d5/2 XPS峰。 图2. a) 室温下的PL和PLE光谱。b) 在不同Sr2+含量下,Li2Ca1-xSrxSiO4: Eu2+ (x = 0–1)的PL光谱颜色图。c) 在不同Ba2+含量下,Li2Sr1-xBaxSiO4: Eu2+ (x = 0–1)的PL光谱颜色图。d) 在不同Ca2+含量下,Li2Ba1-xCaxSiO4...
利用原位NAP-XPS技术系统地研究了Au / Ce 0.80 Eu 0.20 O 2催化剂中Eu 3+ →Eu 2+和Ce 4+ →Ce 3+的还原。首次证明了在温度≥400°C的氢气气氛中,二氧化铈中Eu 3+ →Eu 2+的还原。研究了Ce 0.80 Eu 0.20 O 2载体的还原对Au纳米颗粒在CO氧化中催化活性的影响。
The XPS spectrometer was calibrated by recording the binding energy of Au4f7/2 peak at 83.9 eV. A C1s peak at 284.6 eV was taken as an internal standard. 2.3. Absorption and PL Spectra of Eu-Doped ZnWO4 Nanoplates The diffused reflectance spectra of the samples were measured with a UV-...
XPS测试表明,在氧气中合成的BaCuO2.5的Cu2p3/2电子结合能比CuO的高约1.1eV.XRD分析表明,BaCuO2.5在高温(920℃)下加热后分解成BaCuO2.由此推测高温超导体中难以存在Cu3... 赵良仲,胡玉秀,徐翠英,... - 《低温与超导》 被引量: 2发表: 1992年 Sr_(2)LiSiO_(4)F的晶格位点工程调控实现混合价态Eu^(...
(XPS). XRD showed that all prepared samples exhibited a hexagonal BaAl2O4phase. Fluorescence spectroscopy showed that the photoluminescence efficiency increased with increasing Eu2+concentration until 3 mol% then decreased at higher concentrations due to concentration quenching effect. Mo...
Efficient energy transfer was demonstrated in the SrF2: Eu2+, Pr3+phosphor synthesized by the co-precipitation method. Results obtained with X-ray diffraction (XRD), scanning electron microscopy (SEM), x-ray spectroscopy (XPS), photoluminescence (PL) and decay curves proposed the UV-Vis energy ...
The structure of pure SMS particles was analyzed by XRD and XPS. The properties of SMS particles before and after modification were characterized by FT-IR and SEM. PLA/SMS composite films containing 15 wt% of SMS particles were prepared by spin coating on silicon wafer. Their morphology and ...
To understand the increase of PL intensity of CMS after the baking process, VUV/PL, ESR, XPS techniques were applied. The obtained results suggest that the cause of luminance increase be related with the Eu2+ ion concentration. In the case of CMS, the VUV/PL intensity was increased after ...
将香豆素衍生物与UiO-66-NH_(2)通过席夫碱反应共价相连,合成了一种新型荧光探针材料UiO-66-DCC.傅里叶变换红外光谱(FT-IR),X射线光电子能谱(XPS),X射线粉末衍射(PXRD)... 孙超凡,马文辉,张永,... - 《分析试验室》 被引量: 0发表: 2024年 功能化荧光框架材料在有机小分子和重金属离子检测中的应用 ...
The spontaneous reduction of Eu3+ in Ba5(PO4)3Cl samples was confirmed by XPS and time-resolved spectra. CRediT authorship contribution statement Peng Wang: Conceptualization, Resources, Methodology, Writing. Jiashan Mao: Investigation. Xiantao Wei: Software. Liting Qiu: Supervision, Validation. Bin...