期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 47, 期 10, 页码 6535-6543出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2021.12.030
关键词
Stainless steel; Corrosion layer; Corrosion rate; High temperature corrosion; Copper-Chlorine cycle; Nickel
资金
- Canadian Nuclear Laboratories
- Ontario Research Fund
- Natural Sciences and Engineering Research Council of Canada
This study examines the corrosion issue in the production of hydrogen through the copper-chlorine cycle. The experiments show that 316 stainless steel produces roughly ten times more corrosion product compared to nickel-based alloys. The results also indicate that both nickel and chromium are needed to promote corrosion resistance.
Production, transformation, and use of energy are the main sources of environmental problems such as acid rain, ozone depletion, and climate change. One avenue to clean energy is the hydrogen economy, and a promising method for sustainable hydrogen production is the copper - chlorine cycle (Cu-Cl), in which overall water splitting is achieved through a series of thermochemical reactions. Hydrogen produced from this reaction is an energy vector, storing waste energy extracted from high temperature industrial processes and increasing the overall energy utilization. These reactions occur at various temperatures up to 550 degrees C and in corrosive environments that can cause materials to deteriorate. The authors designed and built an experimental apparatus to investigate the corrosion of materials by exposing nickel-based and stainless steel alloy samples to cuprous chloride (CuCl) vapours at 450 degrees C. The corrosion behaviour of different materials was studied. The experiments showed that 316 stainless steel produced roughly ten times as much corrosion product compared to nickel-based alloys. The alloys studied exhibited similar amounts of corrosion product growth. The results indicate that both nickel and chromium are needed to promote corrosion resistance.
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