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首页> 外文期刊>Journal of Materials Chemistry, A. Materials for energy and sustainability >Copper aided exchange in high performance oxygen production by CuCo binary oxides for clean energy delivery
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Copper aided exchange in high performance oxygen production by CuCo binary oxides for clean energy delivery

机译:CuCo二元氧化物生产的高效氧气生产中的铜辅助交换,用于清洁能源的输送

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Here we show the high oxygen production conferred by binary CuCo oxides. A feature of this material is the robustness to temperature cycling under the exposure of dry and wet air. Higher cobalt content favoured oxygen sorption, though at longer temperature swing cycles of 250 degrees C between oxidation and reduction processes. A more desirable outcome was achieved with a high cobalt content in the presence of copper (Co0.8Cu0.2Ox) as the temperature cycle was almost halved to 125 degrees C, thus leading to faster cycles of oxygen uptake and release, and higher oxygen production rates similar to 5.0 wt%. The fast uptake was attributed to the reduction of cobalt(III) to cobalt(II) oxide whilst copper oxide enhanced the exchange of oxygen in cobalt oxide. The robustness of the binary CoCu oxides paves the pathway for oxygen production for the new generation of oxyfuel coal power plants.
机译:在这里,我们显示了由二元CuCo氧化物赋予的高氧气产量。这种材料的一个特点是在暴露于干燥和潮湿的空气中,对温度循环具有鲁棒性。较高的钴含量有利于氧的吸附,尽管在氧化和还原过程之间的温度波动周期较长(250摄氏度)。当温度周期几乎减半至125摄氏度时,在铜(Co0.8Cu0.2Ox)存在下使用高钴含量可获得更理想的结果,从而导致更快的氧气吸收和释放周期以及更高的氧气产量比率接近5.0 wt%。快速吸收归因于将钴(III)还原为氧化钴(II),而氧化铜则增强了氧化钴中氧的交换。二元CoCu氧化物的坚固性为新一代富氧燃煤电厂的氧气生产铺平了道路。

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