The Experts below are selected from a list of 276 Experts worldwide ranked by ideXlab platform
Yongzhe Zhang - One of the best experts on this subject based on the ideXlab platform.
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understand the degradation mechanism of electrochromic wo3 films by double step chronoamperometry and Chronocoulometry techniques combined with in situ spectroelectrochemical study
Electroanalysis, 2017Co-Authors: Kailing Zhou, Hao Wang, Yongzhe ZhangAbstract:In this paper, we demonstrate that the double-step chronoamperometry and Chronocoulometry techniques are efficient tools for characterizing the basic electrochromic performance of WO3 films (i. e., coloration/bleaching conversion, charge capacity and coloration efficiency). In combination with in situ spectroelectrochemical study, the variations in the optical modulation and charge capacity of the WO3 film under different potential windows were attributed to different ion diffusion depths and the quantity of WO3 sites participating in the redox reaction. Moreover, the double-step techniques have distinctive advantages for analyzing the cyclic mechanism of the WO3 film. When the inserted Li+ ions in the coloration process cannot be completely extracted from the film in the next bleaching process, these ions accumulate in the film upon cycling, leading to the degradation of the electrochromic performance. Here the accumulated ions are referred to as “unrecoverable ions”. The abundant formation of unrecoverable ions may be due to incomplete reduction of a portion of LixWO3, which is caused by collapse of the Li+ ion diffusion channels in the deep of film after repeated cycles. All these results support that the double-step chronoamperometry and Chronocoulometry techniques have significant advantages to analyze the cyclic stability and explore the degradation mechanism of electrochromic WO3 films.
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Understand the Degradation Mechanism of Electrochromic WO3 Films by Double‐step Chronoamperometry and Chronocoulometry Techniques Combined with in situ Spectroelectrochemical Study
Electroanalysis, 2017Co-Authors: Kailing Zhou, Hao Wang, Yongzhe ZhangAbstract:In this paper, we demonstrate that the double-step chronoamperometry and Chronocoulometry techniques are efficient tools for characterizing the basic electrochromic performance of WO3 films (i. e., coloration/bleaching conversion, charge capacity and coloration efficiency). In combination with in situ spectroelectrochemical study, the variations in the optical modulation and charge capacity of the WO3 film under different potential windows were attributed to different ion diffusion depths and the quantity of WO3 sites participating in the redox reaction. Moreover, the double-step techniques have distinctive advantages for analyzing the cyclic mechanism of the WO3 film. When the inserted Li+ ions in the coloration process cannot be completely extracted from the film in the next bleaching process, these ions accumulate in the film upon cycling, leading to the degradation of the electrochromic performance. Here the accumulated ions are referred to as “unrecoverable ions”. The abundant formation of unrecoverable ions may be due to incomplete reduction of a portion of LixWO3, which is caused by collapse of the Li+ ion diffusion channels in the deep of film after repeated cycles. All these results support that the double-step chronoamperometry and Chronocoulometry techniques have significant advantages to analyze the cyclic stability and explore the degradation mechanism of electrochromic WO3 films.
Kailing Zhou - One of the best experts on this subject based on the ideXlab platform.
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understand the degradation mechanism of electrochromic wo3 films by double step chronoamperometry and Chronocoulometry techniques combined with in situ spectroelectrochemical study
Electroanalysis, 2017Co-Authors: Kailing Zhou, Hao Wang, Yongzhe ZhangAbstract:In this paper, we demonstrate that the double-step chronoamperometry and Chronocoulometry techniques are efficient tools for characterizing the basic electrochromic performance of WO3 films (i. e., coloration/bleaching conversion, charge capacity and coloration efficiency). In combination with in situ spectroelectrochemical study, the variations in the optical modulation and charge capacity of the WO3 film under different potential windows were attributed to different ion diffusion depths and the quantity of WO3 sites participating in the redox reaction. Moreover, the double-step techniques have distinctive advantages for analyzing the cyclic mechanism of the WO3 film. When the inserted Li+ ions in the coloration process cannot be completely extracted from the film in the next bleaching process, these ions accumulate in the film upon cycling, leading to the degradation of the electrochromic performance. Here the accumulated ions are referred to as “unrecoverable ions”. The abundant formation of unrecoverable ions may be due to incomplete reduction of a portion of LixWO3, which is caused by collapse of the Li+ ion diffusion channels in the deep of film after repeated cycles. All these results support that the double-step chronoamperometry and Chronocoulometry techniques have significant advantages to analyze the cyclic stability and explore the degradation mechanism of electrochromic WO3 films.
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Understand the Degradation Mechanism of Electrochromic WO3 Films by Double‐step Chronoamperometry and Chronocoulometry Techniques Combined with in situ Spectroelectrochemical Study
Electroanalysis, 2017Co-Authors: Kailing Zhou, Hao Wang, Yongzhe ZhangAbstract:In this paper, we demonstrate that the double-step chronoamperometry and Chronocoulometry techniques are efficient tools for characterizing the basic electrochromic performance of WO3 films (i. e., coloration/bleaching conversion, charge capacity and coloration efficiency). In combination with in situ spectroelectrochemical study, the variations in the optical modulation and charge capacity of the WO3 film under different potential windows were attributed to different ion diffusion depths and the quantity of WO3 sites participating in the redox reaction. Moreover, the double-step techniques have distinctive advantages for analyzing the cyclic mechanism of the WO3 film. When the inserted Li+ ions in the coloration process cannot be completely extracted from the film in the next bleaching process, these ions accumulate in the film upon cycling, leading to the degradation of the electrochromic performance. Here the accumulated ions are referred to as “unrecoverable ions”. The abundant formation of unrecoverable ions may be due to incomplete reduction of a portion of LixWO3, which is caused by collapse of the Li+ ion diffusion channels in the deep of film after repeated cycles. All these results support that the double-step chronoamperometry and Chronocoulometry techniques have significant advantages to analyze the cyclic stability and explore the degradation mechanism of electrochromic WO3 films.
Hao Wang - One of the best experts on this subject based on the ideXlab platform.
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understand the degradation mechanism of electrochromic wo3 films by double step chronoamperometry and Chronocoulometry techniques combined with in situ spectroelectrochemical study
Electroanalysis, 2017Co-Authors: Kailing Zhou, Hao Wang, Yongzhe ZhangAbstract:In this paper, we demonstrate that the double-step chronoamperometry and Chronocoulometry techniques are efficient tools for characterizing the basic electrochromic performance of WO3 films (i. e., coloration/bleaching conversion, charge capacity and coloration efficiency). In combination with in situ spectroelectrochemical study, the variations in the optical modulation and charge capacity of the WO3 film under different potential windows were attributed to different ion diffusion depths and the quantity of WO3 sites participating in the redox reaction. Moreover, the double-step techniques have distinctive advantages for analyzing the cyclic mechanism of the WO3 film. When the inserted Li+ ions in the coloration process cannot be completely extracted from the film in the next bleaching process, these ions accumulate in the film upon cycling, leading to the degradation of the electrochromic performance. Here the accumulated ions are referred to as “unrecoverable ions”. The abundant formation of unrecoverable ions may be due to incomplete reduction of a portion of LixWO3, which is caused by collapse of the Li+ ion diffusion channels in the deep of film after repeated cycles. All these results support that the double-step chronoamperometry and Chronocoulometry techniques have significant advantages to analyze the cyclic stability and explore the degradation mechanism of electrochromic WO3 films.
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Understand the Degradation Mechanism of Electrochromic WO3 Films by Double‐step Chronoamperometry and Chronocoulometry Techniques Combined with in situ Spectroelectrochemical Study
Electroanalysis, 2017Co-Authors: Kailing Zhou, Hao Wang, Yongzhe ZhangAbstract:In this paper, we demonstrate that the double-step chronoamperometry and Chronocoulometry techniques are efficient tools for characterizing the basic electrochromic performance of WO3 films (i. e., coloration/bleaching conversion, charge capacity and coloration efficiency). In combination with in situ spectroelectrochemical study, the variations in the optical modulation and charge capacity of the WO3 film under different potential windows were attributed to different ion diffusion depths and the quantity of WO3 sites participating in the redox reaction. Moreover, the double-step techniques have distinctive advantages for analyzing the cyclic mechanism of the WO3 film. When the inserted Li+ ions in the coloration process cannot be completely extracted from the film in the next bleaching process, these ions accumulate in the film upon cycling, leading to the degradation of the electrochromic performance. Here the accumulated ions are referred to as “unrecoverable ions”. The abundant formation of unrecoverable ions may be due to incomplete reduction of a portion of LixWO3, which is caused by collapse of the Li+ ion diffusion channels in the deep of film after repeated cycles. All these results support that the double-step chronoamperometry and Chronocoulometry techniques have significant advantages to analyze the cyclic stability and explore the degradation mechanism of electrochromic WO3 films.
Lin Xin - One of the best experts on this subject based on the ideXlab platform.
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Determination of Chromium(VI) in the Waste Water of Electroplate by Computer-controlled Chronocoulometry
Journal of Fujian Medical University, 2002Co-Authors: Lin XinAbstract:Objective To study the application of computer controlled Chronocoulometry for determination of chromium(Ⅵ) in waste water of electroplate. MethodsA kind of computer controlled Chronocoulometry was developed and applied to the determination of chromium(Ⅵ). Results The linear range of chromium(Ⅵ) was 3~24 mg/L, and the relative standard deviation was less than 0 1%. The recovery was 98%~103% in the determination of chromium(Ⅵ) in waste water. Conclusion Chronocoulometry could overcome noise disturbance resulting from capacity current method and variety of property of electrode surface. This method is sensitive, accurate and well reproducible. It has been applied to determination of chromium(Ⅵ) in waste water with satisfactory results.
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Determination of Copper in the Waste Water of Plating by Chronocoulometry for Flowing Solution
Electrochemistry, 2002Co-Authors: Lin XinAbstract:The Chronocoulometry for flowing solution was devoloped and applied to the detemination of copper(Ⅱ) in the waste water of plating.The linear range of copper(Ⅱ) was 2～16mg/L,and the relative standard deviation was less than 0.1% ( n =8).The recovery was 98%～103% for copper(Ⅱ) in the waste water.Chronocoulometry for flowing solution overcomed noise disturbance resulting from capacity current and variety of property of electrode surface.This method was sensitive,accurate and well reproducible.
Zuxun Zhang - One of the best experts on this subject based on the ideXlab platform.
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Double potential-step chronoamperometry and Chronocoulometry at an ultramicrodisk electrode: Theory and experiment
Journal of Electroanalytical Chemistry, 1997Co-Authors: Jun-sheng Yu, Zuxun ZhangAbstract:The theoretical equations describing the reversible couple for double potential-step chronoamperometry and Chronocoulometry at a microdisk electrode are derived. The experimental chronoamperometric and chronocoulometric responses at a platinum microdisk electrode with radius 10 μm in the ferrocyanide/ferricyanide system for the time range of current measurement from 300 μs to 500 ms agree well with the theory and demonstrate the advantages of the ultramicroelectrodes in electrochemical transient study.