摘要：石油机械设备经常在高腐蚀性的环境下运行,这对设备的材料和设计提出了极高的要求。过去的研究主要集中在物理、化学和工艺防腐策略的应用,然而,这些策略的效率和适应性仍然存在一些限制。针对这一问题,本文从电化学机理、设备材料、设计以及运营和维护等方面进行深入研究,并提出了一系列优化防腐措施。希望通过这些措施,改善设备的防腐性能,延长设备的使用寿命,从而提高石油开采的效率和经济效益。

摘要：α-Fe2O3 thin films have been synthesized and used as photoanodes for photo-electrochemical (PEC) water oxidation. Molybdate was introduced to mediate hematite thin films via two synthesis routes (namely in situin situ mediation and ex situ modification). Through the in situ mediation process, the morphology and film thickness could be changed significantly due to the addition of MoO42-, while for the ex situ modification, the PEC performance of the hematite has been greatly improved without changing the nanorod morphology. Various characterizations such as UV-Vis absorption, transmission electronic microscopy, scanning electronic microscopy, Mott-Schottky, electrochemical impedance spectroscopy were conducted and the PEC performances were investigated.