2002年9月18日 · Lanthanum phosphate (LaPO 4) powders were synthesized by precipitation with and without excess of phosphate and sintered at 1450° C. Bulk and surfaces of different origin and treatments were investigated using powder x-ray diffraction, transmission electron microscopy and x-ray photoelectron spectroscopy.

2022年12月5日 · Highlights • Nd doping effect on structural, optical, electronic property of LaPO 4 was studied. • XRD showed pure monoclinic crystal structure without any phase impurity. • First ever report on local structure by EXAFS showed La substitution by Nd atoms. • Oxidation states of elements were confirmed from XPS and XANES. •

2023年2月4日 · X-ray photoelectron spectroscopy (XPS) analysis reveals that In 3+ and La 3+ have a prominent appearance in the XPS study, which supports the synthesis of In-LaPO 4 nanoparticles and contradicts the findings of XRD and FTIR.

2021年10月25日 · To further confirm the hydroxyl-quenching effect of the photoluminescence properties, X-ray photoelectron spectroscopy (XPS) analysis were performed. The XPS peaks corresponding to O1s of S1 to S5 are shown in Fig. 7. The O1s peaks of S1 to S5 were fitted with two Gaussian functions as shown in Fig. 7 a–e.

We have studied the microstructure of sintered LaPO 4 ceramic and Al 2 O 3 /LaPO 4 composite using the synthesized powders by SEM and TEM analysis. An interesting layered crystal structure and lots of dislocations inside LaPO 4 grains and at the interface of Al 2 …

1996年1月1日 · The influence of 6 keV Ar + ion bombardment on the LaPO 4 surface composition has been studied by XPS. LaPO 4 is a material which is particularly attractive as a possible host for high-level radioactive wastes.

In this study, we successfully design an active LiVOPO4 (LVOP) coating on the LNCMO surface. The LNCMO/LVOP composites exhibit enhanced rate capability and largely improved cycling stability during...

2020年7月20日 · 采用静电纺丝技术，以聚乳酸（PLA）为生物聚合物基质，以磷酸镧纳米粒子（LaPO4）为能量下转换材料，制备了一种新型生物聚合物/无机纳米粒子杂化纤维。 在与PLA结合并进行静电纺丝之前，对微波辅助水热法获得的LaPO4纳米结构进行了研究，以深入了解其合成参数，因为众所周知，其结构和形态随温度和pH的变化而变化。 在400℃煅烧样品中检测到具有混合形态（棒状和半球形）的六方相和单斜相LaPO4纳米颗粒的高疏水性样品，而600℃煅烧的 …

In this work, LaPO4-coated Li1.2Mn0.54Co0.13Ni0.13O2 cathode material was successfully synthesized by wet chemical deposition method, and La doping was achieved by calcination.

2022年12月2日 · The elemental mapping was analyzed by energy-disperse spectroscopy (EDS, Smartedx). The transition metal ion content was analyzed by inductively coupled plasma (ICP, Agilent 8900). In addition, X-ray photoelectron spectroscopy (XPS, Thermo Fisher Scientific K-ALPHA) was performed to assess the composition and valence state on the surface.