Low-temperature route to shandite Ni3Pb2S2: A study of preparation via ethylene glycol reflux

sShandite Ni3Pb2S2 was obtained at low temperature under ethylene glycol reflux using PbS and freshly produced nickel as starting materials. The as-prepared products were characterized with X-ray diffraction pattern, X-ray photoelectron spectroscopy and scanning electron microscopy. Experimental results showed that the diffusion of Ni was the controlling step in the whole process.