Preparation of nanoscale PbSe particles with different morphologies in diethylene glycol.
Nanoscale PbSe particles with different morphologies including octahedral, tetradecahedral and cubic shapes have been successfully prepared in diethylene glycol (DEG) at 240 degrees C in the presence of PVP-K30: poly(vinyl pyrrolidone), M(W) = 50 000. The formation of PbSe is believed to be an elemental recombination process of corresponding elements reduced from their precursors by the solvent. Experimental results showed that a prominent morphological variation was observed through varying the molar ratios of selenius acid to Pb(2+) when Pb(Ac)(2) was used as lead precursor, while the sizes of the final PbSe products tended to increase along with the increase of the molar ratios of selenius acid to Pb(2+) when Pb(NO(3))(2) was used as lead precursor.
Peng
Zeping
Z
State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Changchun 130022, People's Republic of China.
Liu
Mingzhu
M
Yu
Chao
C
Chai
Zhanli
Z
Zhang
Hongjie
H
Wang
Cheng
C
D005026:Ethylene Glycols / Q000737:chemistry*; D007854:Lead / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry; D018036:Selenium Compounds / Q000737:chemistry*; D014961:X-Ray Diffraction
D005026:Ethylene Glycols; D018036:Selenium Compounds; C088065:lead selenide; D007854:Lead; C013484:diethylene glycol