Herrera Santiago, Tasca Federico, Williams Federico J, Calvo Ernesto J
Department of Inorganic Chemistry, Analytical and Chemical Physics, INQUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires Ciudad Universitaria, Pabellón 2, Buenos Aires, C1428EHA, Argentina.
Department of Chemistry Materials, Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Libertador Bernardo O'Higgins, 3363, Santiago, Chile.
Chemphyschem. 2018 Jul 5;19(13):1599-1604. doi: 10.1002/cphc.201800139. Epub 2018 May 7.
The coordination of PySSPy to FePc was monitored by UV/Vis spectroscopy while the adsobed FePc, anchored by PyS-Au(111), was examined by in situ STM in 0.1 M HClO and X-ray photoelectron spectroscopy (XPS). Rotating-disc-electrode (RDE) and linear-sweep-voltammetry (LSV) studies on the resulting FePc-modified Au(111) electrodes in an oxygen-saturated 0.1 M NaOH electrolyte exhibit excellent electrocatalytic properties for the oxygen reduction reaction (ORR), with a smaller overpotential than that observed for Au(111) with FePc deposited by direct adsorption from a benzene solution.
通过紫外/可见光谱监测PySSPy与FePc的配位情况，同时通过原位STM在0.1 M HClO中对由PyS-Au(111)固定的吸附态FePc进行检测，并采用X射线光电子能谱（XPS）分析。在氧气饱和的0.1 M NaOH电解液中，对所得FePc修饰的Au(111)电极进行旋转圆盘电极（RDE）和线性扫描伏安法（LSV）研究，结果表明其对氧还原反应（ORR）具有优异的电催化性能，与通过从苯溶液中直接吸附沉积FePc的Au(111)相比，过电位更小。
