Inkjet Printing of GaPd2 into Micro‐Channels for the Selective Hydrogenation of Acetylene
Inkjet Printing of GaPd2 into Micro‐Channels for the Selective Hydrogenation of Acetylene
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DOI：
10.1002/cctc.201700288
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发表时间：
2017-10
期刊：
影响因子：
4.5
通讯作者：
M. Siebert;René R. Zimmermann;M. Armbrüster;R. Dittmeyer
中科院分区：
文献类型：
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作者：
M. Siebert;René R. Zimmermann;M. Armbrüster;R. Dittmeyer
使用按需喷墨印刷来施加纳米颗粒GaPd 2催化剂作为微通道的薄且均匀的壁涂层。配制了几种油墨，并就其稳定性和适印性进行了评价。研究了三种不同的印刷方法，并检查了所获得的层的均匀性、粘附性和催化性能。在特定的催化剂活化步骤之后，在523 K和He中的0.5体积% C2 H2、5体积% H2、50体积% C2 H4的进料气体组成下进行乙炔的半氢化。印刷的GaPd 2/α-Al 2 O3表现出最好的催化效果，加氢生成乙烯的选择性为76%，高活性为480 mol（C2 H2）mol（Pd）−1 h−1。
Drop‐on‐demand inkjet printing was used to apply nanoparticulate GaPd2 catalyst as thin and uniform wall coatings for micro‐channels. Several inks were formulated and evaluated concerning their stability and printability. Three different printing approaches were investigated and the obtained layers were examined regarding their homogeneity, adhesion, and catalytic performance. After a specific catalyst activation step, semi‐hydrogenation of acetylene was conducted at 523 K and a feed gas composition of 0.5 vol % C2H2, 5 vol % H2, 50 vol % C2H4 in He. Printed GaPd2/α‐Al2O3 showed the best catalytic results and a selectivity of 76 % for the hydrogenation to ethylene with a high activity of 480 mol(C2H2) mol(Pd)−1 h−1.