Galleguillos-Madrid Felipe M, Salazar-Avalos Sebastian, Fuentealba Edward, Leiva-Guajardo Susana, Cáceres Luis, Portillo Carlos, Sepúlveda Felipe, Brito Iván, Cobos-Murcia José Ángel, Rojas-Moreno Omar F, Jimenez-Arevalo Víctor, Schott Eduardo, Soliz Alvaro
Centro de Desarrollo Energético Antofagasta, Universidad de Antofagasta, Antofagasta 1240000, Chile.
Departamento de Ingeniería Química y Procesos de Minerales, Universidad de Antofagasta, Av. Universidad de Antofagasta 02800, Antofagasta 1271155, Chile.
Materials (Basel). 2024 Oct 21;17(20):5129. doi: 10.3390/ma17205129.
Solar saline water splitting is a promising approach to sustainable hydrogen production, harnessing abundant solar energy and the availability of brine resources, especially in the Atacama Desert. Bischofite salt (MgCl·6HO) has garnered significant attention due to its wide range of industrial applications. Efficient hydrogen production in arid or hyper arid locations using bischofite solutions is a novel and revolutionary idea. This work studied the electrochemical performance of MnO electrodes using a superposition model based on mixed potential theory and evaluated the superficial performance of this electrode in contact with a 0.5 M bischofite salt solution focusing on the hydrogen evolution reaction (HER) and oxygen reduction reaction (ORR) that occur during saline water splitting. The application of the non-linear superposition model provides valuable electrochemical kinetic parameters that complement the understanding of MnO, this being one of the novelties of this work.
太阳能盐水分解是一种很有前景的可持续制氢方法，它利用了丰富的太阳能和盐水资源，特别是在阿塔卡马沙漠地区。水氯镁石盐（MgCl·6HO）因其广泛的工业应用而备受关注。在干旱或超干旱地区使用水氯镁石溶液高效制氢是一个新颖且具有革命性的想法。这项工作基于混合电位理论，使用叠加模型研究了MnO电极的电化学性能，并评估了该电极与0.5M水氯镁石盐溶液接触时的表面性能，重点关注盐水分解过程中发生的析氢反应（HER）和氧还原反应（ORR）。非线性叠加模型的应用提供了有价值的电化学动力学参数，有助于补充对MnO的理解，这是这项工作的新颖之处之一。
