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KIO3-KSCN-H+反应体系的非线性动力学研究
Studies on Nonlinear Kinetics for KIO3-KSCN-H+ Reaction System
【摘要】 研究了 KIO3-KSCN-H+反应体系在连续搅拌流动反应器 ( CSTR)中的非线性动力学行为 .在 CSTR中 ,该反应体系的 Pt电极电位显示出持续振荡现象 ,振荡的浓度范围非常宽 .通过酸度及各种金属离子对体系振荡行为影响的研究发现 ,对振荡体系具有催化作用的可能物种是 H+ 离子而不是金属离子
【Abstract】 The nonlinear dynamical behavior for the reaction between iodate and thiocyanate in acidic medium(H 2SO 4) has been studied in a flow reactor (CSTR). In the CSTR, the reaction system displays a sustained oscillation in the potentials of Pt electrode. The oscillatory region is very wide in concentrations. The influences of acidity and metal ions on the present oscillations were studied. The results showed that it is possible for the hydronium but not the metal ion to serve as the catalytic species during the oscillations.[WT5HZ]
【关键词】 非线性化学反应;
化学振荡;
碘酸盐;
硫氰酸盐;
【Key words】 Nonlinear chemical reaction kinetics; Chemical oscillation; Iodate; Thiocyanate;
【Key words】 Nonlinear chemical reaction kinetics; Chemical oscillation; Iodate; Thiocyanate;
【基金】 浙江省教育委员会自然科学基金! (批准号 :9812 0 2 )
- 【文献出处】 高等学校化学学报 ,CHEMICAL RESEARCH IN CHINESE UNIVERSITIES , 编辑部邮箱 ,2000年04期
- 【分类号】O643
- 【被引频次】3
- 【下载频次】76