An effective strategy for synthesis of spinel NiMn2O4 catalyst by a novel two-step oxidation roasting technology

IF 3.9 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Bing Chen , Peiyu Zhu , Lihua Gao , Zhijun He
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Abstract

A two-step oxidation roasting technology was developed for the synthesis of spinel nickel manganate (NiMn2O4). In the primary oxidation roasting process, synthesized NiMn2O4 with a magnetization saturation (Ms) of 3.06 emu/g was prepared via primary oxidation roasting. In the secondary oxidation roasting process, NiMn2O4 with an Ms of 3.47 emu/g was successfully synthesized via secondary oxidation roasting. Compared with primary oxidation roasting, secondary oxidation roasting promoted the transition from inverse spinel to a normal spinel structure in nickel manganate NiMn2O4. The secondary oxidation roasting process facilitated the transformation from a disordered to ordered structure and from inverse spinel to normal spinel in the crystal structure of nickel manganate.

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来源期刊
Materials Science and Engineering: B
Materials Science and Engineering: B 工程技术-材料科学:综合
CiteScore
5.60
自引率
2.80%
发文量
481
审稿时长
3.5 months
期刊介绍: The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.
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