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ZHL0627(金币+10, 翻译EPI+1): 2010-05-07 20:02:41
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Single scattered PMMA latex microspheres based on literature [11]synthesis, centrifugal assemble colloidal crystal templates. With citric acid, LiNO3, chelating agent for Al (NO3) 3; Lloyd 9H2O and Mn (Ac) 2; Lloyd 4H2O mole ratio by 1 dissolved in water and ethanol solvent liquid, and then fill made precursor to the template clearance. After 70 ° C h, after the dry 2 compounds in the air in the muffle furnace atmosphere, with 2 roasting ° C/min rate of warming to 300 ° C, thermostatic 2 h, to the same temperature of heating to 600 ° C in different time constant, spinel 3d -ordered macroporous LiAlMnO4. Let samples in 0.1 M hydrochloric acid, then soak 1 h, deionized water filtration, dry wash out the target product, the preparation of lithium ionic sieve. The microstructure and materials used size hole field emission scanning electron microscopy (SEM) JSM JOEL, 6360LV - 25 kV, observe samples by ~ 100 s surface spray gold. Using X-ray powder diffraction (XRD, Rigaku D/Max - 2550) by Cu K alpha target emitters (lambda = 1.5406 & Aring sample and grain size wafer surface. Quantachrome with surface than BET 2200e entire NOVA analyzer (samples), adsorption in 100 ° C overnight degas. |
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