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有序Ru3Sn7催化剂HOR电化学活性测试数据

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国家基础学科公共科学数据中心2024-03-05 收录
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开发高效的碱性氢氧化反应催化剂,缩小酸性和碱性电解质之间的动力学差距,对碱性交换膜燃料电池的实际应用具有重要意义。本文在碱性和酸性条件下制备了有序的钌3sn7 /C金属间化合物。结果表明,有序的金属间化合物Ru3Sn7/C比无序的RuSn固溶体合金具有更强的HOR活性、稳定性和co耐受性。更重要的是,作者发现在所合成的Ru3Sn7/C金属间催化剂中,酸性介质和碱性介质之间的动力学间隙明显缩小。结合实验结果和理论计算,作者认为金属间诱导的强电子相互作用提高了Ru3Sn7/C上的羟基结合能,这是加速碱性HOR性能和缩小动力学间隙的原因

Developing efficient alkaline hydrogen oxidation reaction (HOR) catalysts to narrow the kinetic gap between acidic and alkaline electrolytes is of great significance for the practical application of anion exchange membrane fuel cells (AEMFCs). In this work, ordered Ru3Sn7/C intermetallic compounds were synthesized under both alkaline and acidic conditions. The results show that the ordered Ru3Sn7/C intermetallic catalyst exhibits superior HOR activity, stability and CO tolerance compared to the disordered RuSn solid solution alloy. More importantly, the authors found that the kinetic gap between acidic and alkaline media is significantly narrowed in the as-synthesized Ru3Sn7/C intermetallic catalyst. Combining experimental results and theoretical calculations, the authors propose that the strong electronic interaction induced by the intermetallic structure enhances the hydroxyl binding energy on Ru3Sn7/C, which accounts for the accelerated alkaline HOR performance and the narrowed kinetic gap.
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武汉大学
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背景概述
该数据集包含有序Ru3Sn7催化剂在酸性和碱性条件下的氢氧化反应电化学活性测试数据,旨在研究如何缩小两种电解质间的动力学差距,以促进碱性交换膜燃料电池应用。数据包括催化剂的制备、性能测试结果及理论计算分析,涉及92.72MB的161个文件,属于化学学科领域。
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