当前位置：
X-MOL 学术
›
Anal. Chem.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Quantitative Interpretation of Potentiodynamic Polarization Curves Obtained at High Scan Rates in Scanning Electrochemical Cell Microscopy
Analytical Chemistry ( IF 6.7 ) Pub Date : 2024-09-10 , DOI: 10.1021/acs.analchem.4c01476 Hu Zhou 1 , Danny Chhin 1 , Yuanjiao Li 1 , Danick Gallant 2 , Alban Morel 2 , Janine Mauzeroll 1
Analytical Chemistry ( IF 6.7 ) Pub Date : 2024-09-10 , DOI: 10.1021/acs.analchem.4c01476 Hu Zhou 1 , Danny Chhin 1 , Yuanjiao Li 1 , Danick Gallant 2 , Alban Morel 2 , Janine Mauzeroll 1
Affiliation
|
Scanning electrochemical cell microscopy is becoming the tool of choice for the investigation of localized metal corrosion. Typically, potentiodynamic polarization measurements in scanning electrochemical cell microscopy are performed at high potential scan rates. However, Tafel extrapolation applied to high-scan-rate potentiodynamic polarization curves would yield inaccurate corrosion kinetics due to the interference of double-layer charging current or mass transport of species in the metal oxide. Instead, the high field model was used to simulate the potentiodynamic polarization curves of pure aluminum at 25, 50, 100, and 200 mV/s in neutral and acidic phosphate solutions, thus enabling quantitative analysis of local corrosion kinetics by fitting the potentiodynamic polarization curve.
中文翻译：
扫描电化学电池显微镜中高扫描速率获得的动电位极化曲线的定量解释
扫描电化学电池显微镜正在成为研究局部金属腐蚀的首选工具。通常，扫描电化学电池显微镜中的动电位极化测量是在高电位扫描速率下进行的。然而，由于双层充电电流或金属氧化物中物质的质量传输的干扰，应用于高扫描速率动电位极化曲线的塔菲尔外推法会产生不准确的腐蚀动力学。相反，采用高场模型模拟纯铝在中性和酸性磷酸盐溶液中25、50、100和200 mV/s的动电位极化曲线，从而通过拟合动电位极化曲线来定量分析局部腐蚀动力学。
更新日期：2024-09-10
中文翻译：
扫描电化学电池显微镜中高扫描速率获得的动电位极化曲线的定量解释
扫描电化学电池显微镜正在成为研究局部金属腐蚀的首选工具。通常，扫描电化学电池显微镜中的动电位极化测量是在高电位扫描速率下进行的。然而，由于双层充电电流或金属氧化物中物质的质量传输的干扰，应用于高扫描速率动电位极化曲线的塔菲尔外推法会产生不准确的腐蚀动力学。相反，采用高场模型模拟纯铝在中性和酸性磷酸盐溶液中25、50、100和200 mV/s的动电位极化曲线，从而通过拟合动电位极化曲线来定量分析局部腐蚀动力学。
京公网安备 11010802027423号