Kim, Minsoo Hong, Seung-Ah Shin, Naechul Chae, Keun Hwa Lee, Hong-Shik Choi, Sun Shin, Youhwan 2024-01-20T04:03:06Z 2024-01-20T04:03:06Z 2021-09-05 2016-06 0896-8446 https://pubs.kist.re.kr/handle/201004/124012 Manganese compounds of different oxidation states such as MnO2, MnCO3 Mn2O3, and a mixture of MnO + Mn3O4 were synthesized using supercritical water (SCW) and calcination process. The X-ray Diffraction (XRD) patterns confirmed that the use of glycerol as a reducing agent in SCW process was successful in preventing oxidation of manganese products. Scanning electron microscopy (SEM) images of the manganese products showed micro-sized particles with different morphology depending on the product. The simple two step synthesis procedure described in this paper allows easy control of manganese oxidation states with direct applicability in large scale production on an industrial level. (C) 2016 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV HYDROTHERMAL SYNTHESIS THERMAL-DECOMPOSITION NANOPARTICLES PARTICLES TEMPERATURE CALCINATION Synthesis of manganese oxide microparticles using supercritical water Article 10.1016/j.supflu.2016.03.004 1 JOURNAL OF SUPERCRITICAL FLUIDS, v.112, pp.114 - 118 JOURNAL OF SUPERCRITICAL FLUIDS 112 114 118 scie scopus 000374078100015 2-s2.0-84960864560 Chemistry, Physical Engineering, Chemical Chemistry Engineering Article HYDROTHERMAL SYNTHESIS THERMAL-DECOMPOSITION NANOPARTICLES PARTICLES TEMPERATURE CALCINATION Manganese oxide Supercritical water Hydrothermal synthesis Glycerol