cheminform abstract: metastable mns crystallites through solvothermal synthesis
TRANSCRIPT
2001 manganese, Mn
manganese, MnI 6800
41 - 023Metastable MnS Crystallites Through Solvothermal Synthesis. —Metastable (β and γ) and stable (α) MnS crystallites are synthesized bysolvothermal reaction in various solvents from MnCl2·4H2O and thiourea(autoclave, 190–200 ◦C, 2–12 h, 45% yield for metastable and 75% yieldfor stable forms). THF and benzene yield the metastable MnS crystallites,water, ammonia liquor, and ethylenediamine lead to α-MnS. The samples arecharacterized by powder XRD, XPS, and TEM. γ-MnS crystallites with rodlikemorphology are found, and a unique ”methane-like” four-branched rod clusteris characterized. The blue shift of the absorption edge indicates the quantumsize effect of metastable MnS nanocrystallites. — (LU, JUN; QI, PENGFEI;PENG, YIYA; MENG, ZHAOYU; YANG, ZHIPING; YU, WEICHAO; QIAN,YITAI; Chem. Mater. 13 (2001) 6, 2169-2172; Dep. Chem., Univ. Sci. Technol.China, Hefei 230026, Anhui, Peop. Rep. China; EN)
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