利用核能经热化学碘硫循环制氢被认为是最有希望大规模应用的核能制氢技术.碘硫循环工艺简单、效率高,但由于反应体系为强腐蚀过程,设备材料的腐蚀问题是碘硫循环发展的一个难题.总结了碘硫循环中涉及的Bunsen反应、硫酸分解和氢碘酸分解部分的腐蚀环境；综述了金属材料、无机陶瓷材料和高分子材料在碘硫循环腐蚀环境中的耐腐蚀性能及可能的应用；并讨论了防腐蚀衬里技术应用的可能性；比较了陶瓷材料在硫酸分解设备中的应用.这些工作可为碘硫循环工程材料的选择与研发提供依据和理论参考.
The iodine-sulfur (IS) thermochemical cycle is one of the most promising,efficient,massive and CO2-free approaches for nuclear hydrogen production.One of the crucial issues for IS process is the corrosion-resistant performance of the construction materials since the strong corrosive environments are involved.The corrosion environments of Bunsen reaction,sulfuric acid decomposition and hydriodic acid decomposition reaction are discussed.The corrosion-resistant performance of the construction materials such as metals,ceramics and organic polymers used in IS process is reviewed.The potential of the anti-corrosion lining techniques in the process is discussed.The application of ceramic and polymer materials to sulfuric acid decomposition equipment manufacturers is compared.The results may offer basis and theoretical reference for the selection and development of corrosion-resistant materials for IS process.
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