以聚乙烯吡咯烷酮(PVP)为络合剂与Mn(CH3COO)2和La(NO

Using polyvinylpyrrolidone (PVP) as a complexing agent to react with Mn(CH3COO)2 and La(NO3)3·6H2O to prepare precursors, PVP/Mn(CH3COO)2·La(NO3) was prepared by electrospinning 3 fibers, after firing, LaMnO3 with high specific surface area is obtained. Micro/nano fiber. The prepared fibers were characterized by modern analysis methods such as infrared optical resonance (IR), X-ray diffraction (XRD), and scanning electron microscope (SEM). The results show that the diameter of the fiber is significantly reduced after calcination, between 150 and 300 nm; the characteristic absorption peak of PVP disappears, and the newly formed absorption peak of M(LaMn)-O becomes stronger with the increase of calcination temperature; XRD analysis appears The characteristic peaks of the corresponding oxides indicate the formation of LaMnO3.

PVP/Mn (CH3COO)2 and La (NO3) 3.6H2O reactions were used to create a pre-drive body with polyethylene pyridoxine (PVP) as a complex agent and La (NO3) 3.6H2O. La (NO3)3 fiber, roasted to obtain LaMnO3 with a high ratio surface area. Micro/nanofibers. The prepared fibers are represented by modern analytical methods such as infrared light harmony (IR), X-ray diffraction (XRD) and scanning electron mirror (SEM). The results showed that the diameter of the fiber decreased significantly after roasting, between 150 and 300 nm. The PVP characteristic absorption peak disappears, and the newly generated M (LaMn)-O absorption peak becomes stronger with the increase of roasting temperature. XRD analysis shows the characteristic peaks of the corresponding oxides, indicating the generation of LaMnO3.

Polyvinylpyrrolidone (PVP) was used as complexing agent to react with Mn (CH3COO) 2 and La (NO3) 3 · 6H2O to prepare precursor. PVP / Mn (CH3COO) 2 · La (NO3) 3 fiber was prepared by electrospinning. LaMnO3 with high specific surface area was obtained by calcination. Micro / nano fibers. The fibers were characterized by IR, XRD and SEM. The results show that the diameter of the fiber decreases obviously between 150 nm and 300 nm after calcination; the characteristic absorption peak of PVP disappears, and the newly formed m (LaMn) - O absorption peak becomes stronger with the increase of calcination temperature; the characteristic peak of corresponding oxide appears by XRD analysis, which indicates the formation of LaMnO3.<br>