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| 1 | 镍基乙醇水汽重整催化剂:机理、失活与构效关系显示文摘为了应对潜在的氢能利用需求,乙醇水汽重整反应受到了越来越多的关注。镍基催化剂因其高活性、高选择性以及成本优势而极具应用前景,同时在提高催化剂稳定性、降低反应温度、提高氢气收率等方面仍然有进一步发展的空间。更深入认识反应机理、失活机制和催化剂的构效关系是开发高效催化剂的关键。本文对近年来镍基乙醇重整催化剂的研究进展进行了整理总结,首先介绍了通过原位光谱、动力学以及理论计算等手段取得对反应中间物种与反应机理的新认识,分析了催化剂失活的主要原因,并且讨论了镍基催化剂的活性相、尺寸效应、助剂效应,双金属效应等问题,最后简单介绍了得益于基础研究进展的催化剂合成方面的成果,并提出对镍基乙醇水蒸气重整(ESR)剂未来发展的看法:在线/原位表征技术和理论计算将有助于真正理解镍基ESR催化剂的构效关系和反应机理,而新材料,如碳化钼的应用可能在提高催化剂反应性能方面起到作用。 | 赵华博 李民 罗刚 | 2018 | 化工进展2018，37，2： | 6 |
| 2 | Solvent-free partial oxidation of cyclohexane to KA oil over hydrotalcitederived Cu-MgAlO mixed metal oxides显示文摘A highly efficient and stable hydrotalcite-derived Cu-MgAlO catalyst was developed for the partial oxidation of cyclohexane with molecular oxygen.The physical–chemical properties of Cu-MgAlO catalysts were studied,and the results indicated that the copper component had been successfully introduced into the hydrotalcite unit layer structure.The catalytic reaction results showed that copper as the active species could activate CAH bond and effectively promote the decomposition of cyclohexyl hydroperoxide(CHHP)to the mixture of cyclohexanol and cyclohexanone(KA oil).8.3%of cyclohexane conversion and 82.9%of selectivity for KA oil were obtained over 9%Cu-MgAlO catalyst at 150℃with 0.6 MPa of oxygen pressure for 2 h.Especially,its catalytic performance was still stable after five runs. | Jian Jian Dexing Yang Peng Liu Kuiyi You Weijie Sun Hu Zhou Zhengqiu Yuan Qiuhong Ai Hean Luo | 2022 | Chinese Journal of Chemical Engineering2022，35，2： | 0 |
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