Alexandra R. Groves, Thomas E. Ashton, Jawwad A. Darr*
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引用次数: 2
摘要
采用高通量连续热液合成系统，在约14小时内合成了66个钙钛矿BaxSryCazTiO3 (x + y + z = 1)样品库(每个样品约3克)。合成的样品从该工艺的出口收集，然后清洗和冷冻干燥，然后使用旋转圆盘电极测试技术单独评估氧还原催化剂。为了建立物理和电化学表征数据之间的相关性，利用BET表面积、粉末x射线衍射(PXRD)和透射电子显微镜(TEM)等分析方法对合成样品进行了研究。上述方法被证实能够从新的电催化剂库中快速识别氧还原催化剂。
High Throughput Synthesis and Screening of Oxygen Reduction Catalysts in the MTiO3 (M = Ca, Sr, Ba) Perovskite Phase Diagram
A library of 66 perovskite BaxSryCazTiO3 (x + y + z = 1) samples (ca. three grams per sample) was made in ca. 14 h using a high-throughput continuous hydrothermal flow synthesis system. The as-synthesized samples were collected from the outlet of the process and then cleaned and freeze-dried before being evaluated individually as oxygen reduction catalysts using a rotating disk electrode testing technique. To establish any correlations between physical and electrochemical characterization data, the as-synthesized samples were investigated using analytical methods including BET surface area, powder X-ray diffraction (PXRD) and in selected cases, transmission electron microscopy (TEM). The aforementioned approach was validated as being able to quickly identify oxygen reduction catalysts from new libraries of electrocatalysts.
期刊介绍：
The Journal of Combinatorial Chemistry has been relaunched as ACS Combinatorial Science under the leadership of new Editor-in-Chief M.G. Finn of The Scripps Research Institute. The journal features an expanded scope and will build upon the legacy of the Journal of Combinatorial Chemistry, a highly cited leader in the field.
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