zhang feipeng, zhang jiuxing, lu qingmei, et al. Effects of citric acid ratio on nanosized crystalline CaMnO3 powder[J]. High Power Laser and Particle Beams, 2009, 21.
Citation:
zhang feipeng, zhang jiuxing, lu qingmei, et al. Effects of citric acid ratio on nanosized crystalline CaMnO3 powder[J]. High Power Laser and Particle Beams, 2009, 21.
zhang feipeng, zhang jiuxing, lu qingmei, et al. Effects of citric acid ratio on nanosized crystalline CaMnO3 powder[J]. High Power Laser and Particle Beams, 2009, 21.
Citation:
zhang feipeng, zhang jiuxing, lu qingmei, et al. Effects of citric acid ratio on nanosized crystalline CaMnO3 powder[J]. High Power Laser and Particle Beams, 2009, 21.
Molar concentration ratios of citric acid to Ca2+ affect properties of CaMnO3 powders. In this paper, CaMnO3 gel was prepared through the sol-gel method with deionized water and ethylene glycol as solvent, different ratios of citric acid as chelate, and metal nitrates as starting materials. Perovskite polycrystalline CaMnO3 powders were prepared via calcining the dry gel,and were analyzed with XRD, SEM and Marlvern granularity analyzer. The results show that the crystal size ranges from 20 to 50 nm, and the resulting perovskite CaMnO3 powders are flat-shaped granules of about 300～500 nm. The granularity and crystal size of the CaMnO3 powders increase slightly with the increase of the molar concentration ratio．
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