CuO/ZnO/γ-Al2O3 复合材料的陶瓷和机械化学合成条件研究

IF 0.6 4区 材料科学 Q4 MATERIALS SCIENCE, CERAMICS
R. N. Rumyantsev, A. A. Kournikova, A. A. Ily’in, A. V. Afineevsky, T. N. Borisova, E. S. Severgina, D. A. Prozorov, N. N. Smirnov
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引用次数: 0

摘要

通过 X 射线相分析、X 射线结晶分析、同步热分析、扫描电子显微镜和氮的低温吸附-解吸,研究了可用作大吨位甲醇生产和一氧化碳转化催化剂主要成分的复合材料 CuO/ZnO/γ-Al2O3 的制备过程。研究确定了生产方法、加工性质和强度对所得前体的相组成以及所得复合材料的物理化学特性的影响。研究了无水氧化物 CuO/ZnO/γ-Al2O3 混合物以及氧化物与碳酸铵和乙二酸[草酸]混合物在机械化学活化阶段发生的过程。确定了获得具有发达比表面和多孔结构的 CuO/ZnO/γ-Al2O3 复合材料的最佳参数。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Study of the Conditions for Ceramic and Mechanochemical Synthesis of CuO/ZnO/γ-Al2O3 Composites

Study of the Conditions for Ceramic and Mechanochemical Synthesis of CuO/ZnO/γ-Al2O3 Composites

Study of the Conditions for Ceramic and Mechanochemical Synthesis of CuO/ZnO/γ-Al2O3 Composites

The preparation process for the composites CuO/ZnO/γ-Al2O3, which can be used as the main component of catalysts for large-tonnage methanol production and carbon monoxide conversion, was investigated by means of x-ray phase, x-ray crystalline, and synchronous thermal analysis as well as scanning electron microscopy, and low-temperature adsorption-desorption of nitrogen. The influence of the production method and the nature and intensity of processing on the phase composition of the resulting precursors and the physicochemical properties of the resulting composites was determined. The processes occurring at the stage of mechanochemical activation of a mixture of anhydrous oxides CuO/ZnO/γ-Al2O3 and a mixture of oxides with ammonium carbonate and ethanedioic [oxalic] acid were studied. The optimal parameters for obtaining CuO/ZnO/γ-Al2O3 composites with a developed specific surface and porous structure were determined.

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来源期刊
Glass and Ceramics
Glass and Ceramics 工程技术-材料科学:硅酸盐
CiteScore
1.00
自引率
16.70%
发文量
85
审稿时长
6-12 weeks
期刊介绍: Glass and Ceramics reports on advances in basic and applied research and plant production techniques in glass and ceramics. The journal''s broad coverage includes developments in the areas of silicate chemistry, mineralogy and metallurgy, crystal chemistry, solid state reactions, raw materials, phase equilibria, reaction kinetics, physicochemical analysis, physics of dielectrics, and refractories, among others.
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