Optimization of a surfactant free polyol method for the synthesis of platinum–cobalt electrocatalysts using Taguchi design of experiments
Optimization of a surfactant free polyol method for the synthesis of platinum–cobalt electrocatalysts using Taguchi design of experiments
复制标题
使用田口实验设计优化无表面活性剂多元醇合成铂-钴电催化剂的方法
DOI：
10.1016/j.jpowsour.2009.09.051
复制
发表时间：
2010
影响因子：
9.2
通讯作者：
J. Leger
中科院分区：
文献类型：
--
作者：
C. Grolleau;C. Grolleau;C. Coutanceau;F. Pierre;J. Leger
设计的实验（来自田口方法）进行优化实验条件的表面活性剂自由多元醇法合成的PtCo电催化剂。所考虑的响应是活性表面积和对氧还原反应的催化活性。根据来自文献和先前实验的考虑，选择金属盐浓度、pH、温度斜坡、反应物的添加顺序和颗粒清洁步骤作为主要参数。矩阵模型描述的合成系统的行为进行了阐述，考虑到每个考虑的参数和它们的相互作用的影响。从这个模型，优化PtCo/C催化剂，在活性表面积和对氧还原反应的活性，合成。活性表面积和电催化活性的测量值与矩阵模型的计算值吻合得很好。此外，使用该方法可以更好地理解参数的作用和参数之间的相互作用。
A design of experiments (derived from the Taguchi method) was implemented to optimize experimental conditions of a surfactant free polyol method for the synthesis of PtCo electrocatalysts. Considered responses were the active surface area and the catalytic activity toward oxygen reduction reaction. Metallic salt concentration, pH, temperature ramp, addition order of reactants and particle cleaning step were chosen as main parameters according to considerations coming from literature and previous experiments. Matrix models describing the behaviour of the synthesis system was elaborated taking into account the effects of each considered parameter and their interactions. From this model, an optimized PtCo/C catalyst, in terms of active surface area and activity towards the oxygen reduction reaction, was synthesized. Both the measured values of the active surface area and the electrocatalytic activity are in very good agreement with the calculated ones from the matrix model. Furthermore, actions of parameters and interactions between parameters can be better understood using this method.