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首页> 外文期刊>Renewable energy >Catalytic performance of carbon nanotubes supported palladium catalyst for hydrogen production from hydrogen iodide decomposition in thermochemical sulfur iodine cycle
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Catalytic performance of carbon nanotubes supported palladium catalyst for hydrogen production from hydrogen iodide decomposition in thermochemical sulfur iodine cycle

机译：碳纳米管负载钯催化剂在热硫碘循环中碘化氢分解制氢的催化性能

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The current work presents the synthesis of carbon nanotubes supported palladium catalyst for hydrogen production from hydrogen-iodide decomposition in thermochemical water-splitting sulfur-iodine (SI) cycle. XRD results showed that the Pd nanoparticles were highly dispersed on the CNT support. Raman results showed that Pd(3%) possessed the highest quantity of defects than other loaded Pd samples and CNT support. The order of catalytic activity for hydrogen-iodide decomposition is: Pd(3%)/CNT Pd(5%)/CNT Pd(1%)/CNT CNT. This is due to high degree of defects present in Pd(3%)/CNT as compared to others. Pd(3%)/CNT also showed an excellent stability of 100 h for the reaction. The post-characterizations (BET, ICP-AES, XRD and TEM) of spent-Pd(3%)/CNT after 100 h were carried out in order to find out the changes in the specific surface area, elemental analysis, structure and particle size. No changes were observed in the specific surface area, elemental analysis, particle size, and structure of the spent catalyst as compared to the fresh one. This shows the Pd/CNT has a lot of potential of generating hydrogen in the thermochemical SI cycle. (C) 2018 Elsevier Ltd. All rights reserved.
机译：当前的工作提出了碳纳米管负载钯催化剂的合成，该催化剂用于在热化学水分解硫碘（SI）循环中由碘化氢分解产生氢。 XRD结果表明，Pd纳米颗粒高度分散在CNT载体上。拉曼实验结果表明，与其他负载的钯样品和碳纳米管载体相比，钯（3％）的缺陷数量最多。碘化氢分解的催化活性的顺序为：Pd（3％）/ CNT> Pd（5％）/ CNT> Pd（1％）/ CNT> CNT。与其他相比，这是由于Pd（3％）/ CNT中存在大量缺陷。 Pd（3％）/ CNT对于反应也显示了100 h的出色稳定性。 100 h后对废Pd（3％）/ CNT进行后表征（BET，ICP-AES，XRD和TEM），以发现比表面积，元素分析，结构和颗粒的变化尺寸。与新鲜催化剂相比，废催化剂的比表面积，元素分析，粒度和废催化剂的结构均未观察到变化。这表明Pd / CNT在热化学SI循环中具有大量产生氢的潜力。 （C）2018 Elsevier Ltd.保留所有权利。

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