Role of a co-metal in bimetallic Ni–Pt catalyst for hydrogenation of m-dinitrobenzene to m-phenylenediamine
Role of a co-metal in bimetallic Ni–Pt catalyst for hydrogenation of m-dinitrobenzene to m-phenylenediamine
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DOI：
10.1016/j.apcata.2005.07.050
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发表时间：
2005-10
影响因子：
5.5
通讯作者：
M. M. Telkar-M.;Jayprakash M. Nadgeri;C. Rode;R. V. Chaudhari
中科院分区：
文献类型：
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作者：
M. M. Telkar-M.;Jayprakash M. Nadgeri;C. Rode;R. V. Chaudhari
在间二硝基苯加氢反应中，以碳为载体的Ni-Pt双金属催化剂与单金属镍催化剂相比，具有很高的转化率和几乎完全的间苯二胺选择性。XRD和XPS表征表明，在单金属催化剂中，大部分镍以Ni 2+形式保留，而在双金属催化剂中，铂的加入导致Ni 0状态的稳定。
Bimetallic Ni–Pt catalysts supported on carbon were found to give very high turn over frequency numbers and almost complete selectivity to m-phenylenediamine in m-dinitrobenzene hydrogenation as compared to the monometallic nickel catalysts. The XRD and XPS characterization revealed that most of the nickel remains as Ni2+in a monometallic catalyst while, the addition of platinum leads to the stabilization of Ni0state, in case of bimetallic catalysts.