双金属片
催化作用
铜
镍
X射线光电子能谱
选择性
氢
金属
材料科学
无机化学
1,3-丁二烯
相(物质)
化学
化学工程
冶金
有机化学
工程类
作者
Min Suk Kang,Min Song,Tae Won Kim,Kyung Lim Kim
标识
DOI:10.1002/cjce.5450800107
摘要
Abstract Addition of a second metal often improves the selectivity of a supported catalyst for the hydrogenation of 1,3‐butadiene. Catalysts containing 15 wt% Ni and varying amounts of Cu were prepared and characterized by TPR, XRD and XPS. The Cu‐Ni interaction affects the reduction behavior of the catalysts. TPR result shows that the synergetic effect of copper and nickel modifies the capability of metal to combine with hydrogen in bulk phase. The Ni 2p spectra in XPS shows significant shifts toward lower binding energies with increasing copper loading. From XRD results it is represented that aggregation of nickel occurs more easily due to the copper addition. The adding of copper on Ni/Al 2 O 3 makes the conversion rate decreased and increases the selectivity to 1‐butene.
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