Characterization and reactivity of zinc sulphide prepared by mechanochemical synthesis

被引：0
|
作者：
Balaz, P. [1 ]
Balintova, M. [1 ]
Bastl, Z. [1 ]
Briancin, J. [1 ]
Sepelak, V. [1 ]
机构：
[1] Slovak Acad of Sciences, Kosice, Slovakia
来源：
Solid State Ionics | 1997年 / 101-103卷 / pt 1期
关键词：
Infrared spectroscopy - Milling (machining) - Oxidation - Reaction kinetics - Surface measurement - Synthesis (chemical) - X ray diffraction analysis - X ray photoelectron spectroscopy;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This paper describes the mechano-synthesis of ZnS by high intensive milling of elementary sulphur and zinc in a planetary mill. Using complex physical and chemical methods (XRD, surface area measurement, IR and XPS) the probable occurrence of sphalerite was proved. The sphalerite was contaminated by iron (up to 0.14% of Fe) and the product of surface oxidation (hydrated ZnSO4). The reaction of mechano-synthesized ZnS with H2SO4 (170 g l-1) at 40-80 °C has a higher temperature sensitivity. A shift of the rate-controlling step to surface chemical control was observed, too.
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页码：45 / 51
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