Flame-made Cu/ZnO/Al2O3 catalyst for dimethyl ether production
Flame-made Cu/ZnO/Al2O3 catalyst for dimethyl ether production
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DOI：
10.1016/j.catcom.2013.08.020
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发表时间：
2014-01-05
影响因子：
3.7
通讯作者：
Arnold, Ulrich
中科院分区：
文献类型：
--
作者：
Ahmad, Ruaa;Hellinger, Melanie;Arnold, Ulrich
为了从合成气一步合成二甲醚 (DME)，使用火焰喷雾热解制备了 Cu/ZnO/Al2O3 催化剂。将所得粉末与γ-氧化铝共混合以得到用于DME生产的混合系统。采用BET法、原位XRD、N2O分解、TPR和XPS对火焰制备的催化剂进行了分析。这些研究表明，与市售催化剂相比，该催化剂表现出高铜表面积，包括与氧化锌和氧化铝的良好接触以及小铜颗粒，从而产生高催化活性和产物选择性。 (C) 2013 Elsevier B.V. 保留所有权利。
For the single step synthesis of dimethyl ether (DME) from synthesis gas a Cu/ZnO/Al2O3-catalyst has been prepared using flame-spray pyrolysis. The resulting powder was co-mixed with gamma-alumina to give an admixed system for DME production. The flame-made catalyst was analyzed using the BET method, in situ XRD, N2O decomposition, TPR and XPS. These studies unraveled that the catalyst exhibited a high Cu surface area including good contact with zinc oxide and alumina as well as small Cu particles resulting in high catalytic activity and product selectivity, also in comparison to a commercially available catalyst. (C) 2013 Elsevier B.V. All rights reserved.