CATALYTIC OSCILLATORY OXIDATION OF CO ON PT(110) - ON-OFF CONTROL TO CHAOS

An improved mean-field model, which specially takes into account pair correlation, was proposed to describe catalytic oscillatory oxidation of CO on Pt(110). By applying on-off control strategies under differen t frequency, the chemical oscillator shows an abundance of periodic do ubling processes, even chaos response, and the route to the chaos and out of the chaos were both identified as period-doubling through analy sis of its Lyapunov exponent spectrum. These response results reveal t hat structure delay effect plays this system.