Passive films formed on sensitized stainless steel in sulphuric acid solutions have been studied using photoelectrochemical techniques. The results of the photocurrent measurement indicate that the passive films on se...Passive films formed on sensitized stainless steel in sulphuric acid solutions have been studied using photoelectrochemical techniques. The results of the photocurrent measurement indicate that the passive films on sensitized stainless steel are characterised with n-type or p-type semiconductor in different potential regions. The difference in the photoelectrochemical behaviour can be interpreted assuming that the passive film is an iron-chromium oxide solid solution associated with various hydration degrees of the Cr(III)-oxides at various potentials.展开更多
A novel type of estrogen-based receptor has been synthesized. These receptor compounds 3a-d have been characterized by mass spectra, H-1 NMR spectra, IR spectra and elemental analyses.
The faradaic current of interest can often be obscured by some extraneous current. A new method called staircase pulse voltammetry (SPV), with which involving a potential pulse is superimposed on a staircase, is used ...The faradaic current of interest can often be obscured by some extraneous current. A new method called staircase pulse voltammetry (SPV), with which involving a potential pulse is superimposed on a staircase, is used for removing the double-layer charging; current. This paper presents the theoretical consideration and the experimental evidence of this method for a simple reversible system and a catalytic process. The parameters affecting currents are also discussed. Experimental verifications are in agreement with the theories.展开更多
文摘Passive films formed on sensitized stainless steel in sulphuric acid solutions have been studied using photoelectrochemical techniques. The results of the photocurrent measurement indicate that the passive films on sensitized stainless steel are characterised with n-type or p-type semiconductor in different potential regions. The difference in the photoelectrochemical behaviour can be interpreted assuming that the passive film is an iron-chromium oxide solid solution associated with various hydration degrees of the Cr(III)-oxides at various potentials.
文摘A novel type of estrogen-based receptor has been synthesized. These receptor compounds 3a-d have been characterized by mass spectra, H-1 NMR spectra, IR spectra and elemental analyses.
基金Project supported the National Natural Science Foundation of China and the Science Foundation of Guangdong Province,China.
文摘The faradaic current of interest can often be obscured by some extraneous current. A new method called staircase pulse voltammetry (SPV), with which involving a potential pulse is superimposed on a staircase, is used for removing the double-layer charging; current. This paper presents the theoretical consideration and the experimental evidence of this method for a simple reversible system and a catalytic process. The parameters affecting currents are also discussed. Experimental verifications are in agreement with the theories.
