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。
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 ...
摘要：采用高温固相法，通过控制反应温度和Eu3+掺杂量，制备BaAl2O4: Eu直接白色荧光粉。以电荷补偿模型为基础讨论了自还原机理。当合成温度为1200℃、Eu3+掺杂量为12%(摩尔分数)时，荧光粉颜色趋近于白光，色坐标位于(0.36，0.38)。通过X射线光电子能谱、发射和激发光谱以及漫反射光谱，研究了BaAl2O4: Eu...
The prepared composite was characterized by means of SEM, TEM, XRD, DT–TGA, XPS, UV–Vi... P Kumar,C Joshi,N Labhshetwar,... - 《Nanoscale》 被引量: 7发表: 2015年 Hierarchical TiO2/Ni(OH)2 Composite Fiber with Enhanced Photocatalytic CO2 Reduction Performance In the past years, Ni...
应用BET,气相色谱,红外光谱,竞争加氢反应和XPS等方法,在以前工作的基础上继续考察了Y2O3,Sm2O3,Eu2O3,Gd2O3,Tb4O7,Dy2O3,Er2O3,Tm2O3,Yb2O3作为添加剂,对镍在γ-Al2O3... 牛雪平,姚亦淳,郝茂荣,... - 《分子催化》 被引量: 54发表: 1999年 Synthesis and photoluminescence property of red ph...
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...
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-...