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首页> 外文期刊>Journal of the Korean Ceramic Society >One-step solid-state synthesis of Mx-ZnBi2O4–Bi2O3 (Mx = Fe, Co, Ni, Eu, and Ho) nanocomposites and catalytic production of 3,4-dihydropyrimidin-2-(1H)-ones
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One-step solid-state synthesis of Mx-ZnBi2O4–Bi2O3 (Mx = Fe, Co, Ni, Eu, and Ho) nanocomposites and catalytic production of 3,4-dihydropyrimidin-2-(1H)-ones

机译：One-step solid-state synthesis of Mx-ZnBi2O4–Bi2O3 (Mx = Fe, Co, Ni, Eu, and Ho) nanocomposites and catalytic production of 3,4-dihydropyrimidin-2-(1H)-ones

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Abstract This paper presented the synthesis of Mx-ZnBi2O4–Bi2O3 (Mx?=?Fe, Co, Ni, Eu, and Ho) nanomaterials by a one-pot facile solid-state method at 650 ?C for 10?h. Rietveld analysis data displayed the formation of ZnBi2O4–Bi2O3 composite in which ZnBi2O4 was crystallized as a main phase in orthorhombic crystal system with Pmmm space group. The investigation of optical properties indicated that doping the metal ions into the ZnBi2O4–Bi2O3 nanocomposite decreased the band-gap energy amount. Results indicated that the synthesized samples displayed paramagnetic behavior without any preferred magnetization direction. However, the data indicated that Co3+-doped ZnBi2O4 showed highest magnetization value. In addition, cyclic voltammetry (CV) data and low EIS values revealed a pseudocapacitor behavior of the synthesized samples. Biginelli reaction to synthesize heterocyclic DHPMs compounds was applied to evaluate the catalytic performance of the samples. Results indicated that the synthesis yields of DHPMs at optimum condition were 92% and 96% for undoped and Eu-doped ZnBi2O4–Bi2O3, respectively.Graphical abstract

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