Melt-assisted synthesis to lanthanum hexaboride nanoparticles and cubes

作者：Hang, Chun-Liang; Yang, Li-Xia^*; Wang, Feng; Xu, Yan-Bin; Yi, Chen-Yu

来源：Bulletin of Materials Science, 2017, 40(6): 1241-1245.

DOI：10.1007/s12034-017-1481-2

• LaB6
• microstructure
• melt-assisted synthesis
• photothermal conversion

Lanthanum hexaboride (LaB6) nanocrystals and cubes were successfully synthesized at for 2 h under argon atmosphere by a melt-assisted method using and as reactants, NaCl-KCl or zinc or NaCl-KCl-zinc as reaction melt. The obtained products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Raman spectroscopy. XRD patterns and Raman spectra confirmed the formation of with high purity. TEM and SEM results showed powders prepared in mixed molten salts of NaCl-KCl were mainly composed of nanoparticles with sizes of ca. 8 nm. The morphology of presented as regular cubes (100-300 nm) when metal zinc was used as reaction melt. Photothermal conversion test indicated that nanoparticles had a better photothermal conversion performance than cubes.

• 出版日期2017-10
• 单位鲁东大学