Palladium（II） and chloride ions tend to form complexes in aqueous solution. Both theoretical and experimental （by UV spec- trum） results indicate that there are four complexes formed in aqueous solution containing...Palladium（II） and chloride ions tend to form complexes in aqueous solution. Both theoretical and experimental （by UV spec- trum） results indicate that there are four complexes formed in aqueous solution containing 3 mol/L hydrochloric acid and 20 mmol/L PdC12. This work evaluates the kinetics of electrochemical deposition of palladium on a Platinum electrode. For this purpose, palladium electrodeposition was investigated by means of cyclic voltammetry （CV）, potentiostatic current-time tran- sients （CTTs） and Tafel curve. By CTTs curves, the regions corresponding to the charge transfer control, mixed control and diffusion control were identified. In the diffusion control region, palladium electrodeposition mechanism was characterized as progressive nucleation with three-dimensional （3D） growth under diffusion control; as for the mixed control region, an adsorp- tion （1Ads）, ion transfer （liT）, and nucleation and growth （ING） model were proposed to analyze the current-time transients quan- titatively, which could separate the IAds, lit and IN~ perfectly.展开更多
This paper is concerned with stochastic H_2/H_∞ control problem for Poisson jump-diffusion systems with(x, u, v)-dependent noise, which are driven by Brownian motion and Poisson random jumps. A stochastic bounded rea...This paper is concerned with stochastic H_2/H_∞ control problem for Poisson jump-diffusion systems with(x, u, v)-dependent noise, which are driven by Brownian motion and Poisson random jumps. A stochastic bounded real lemma(SBRL for short) for Poisson jump-diffusion systems is firstly established, which stands out on its own as a very interesting theoretical problem. Further, sufficient and necessary conditions for the existence of a state feedback H_2/H_∞ control are given based on four coupled matrix Riccati equations. Finally, a discrete approximation algorithm and an example are presented.展开更多
基金supported by the National Natural Science Foundation of China(91026019,91126006)
文摘Palladium（II） and chloride ions tend to form complexes in aqueous solution. Both theoretical and experimental （by UV spec- trum） results indicate that there are four complexes formed in aqueous solution containing 3 mol/L hydrochloric acid and 20 mmol/L PdC12. This work evaluates the kinetics of electrochemical deposition of palladium on a Platinum electrode. For this purpose, palladium electrodeposition was investigated by means of cyclic voltammetry （CV）, potentiostatic current-time tran- sients （CTTs） and Tafel curve. By CTTs curves, the regions corresponding to the charge transfer control, mixed control and diffusion control were identified. In the diffusion control region, palladium electrodeposition mechanism was characterized as progressive nucleation with three-dimensional （3D） growth under diffusion control; as for the mixed control region, an adsorp- tion （1Ads）, ion transfer （liT）, and nucleation and growth （ING） model were proposed to analyze the current-time transients quan- titatively, which could separate the IAds, lit and IN~ perfectly.
基金supported by the Special Funds of the National Natural Science Foundation of China(No.11426154)
文摘This paper is concerned with stochastic H_2/H_∞ control problem for Poisson jump-diffusion systems with(x, u, v)-dependent noise, which are driven by Brownian motion and Poisson random jumps. A stochastic bounded real lemma(SBRL for short) for Poisson jump-diffusion systems is firstly established, which stands out on its own as a very interesting theoretical problem. Further, sufficient and necessary conditions for the existence of a state feedback H_2/H_∞ control are given based on four coupled matrix Riccati equations. Finally, a discrete approximation algorithm and an example are presented.
