Highly efficient and selective hydrogenation of unsaturated carbonyl compounds using Ni–Sn alloy catalysts
Highly efficient and selective hydrogenation of unsaturated carbonyl compounds using Ni–Sn alloy catalysts
复制标题
DOI：
10.1039/c2cy20216f
复制
发表时间：
2012-09
影响因子：
5
通讯作者：
Rodiansono;S. Khairi;Takayoshi Hara;N. Ichikuni;S. Shimazu
中科院分区：
文献类型：
--
作者：
Rodiansono;S. Khairi;Takayoshi Hara;N. Ichikuni;S. Shimazu
廉价的镍锡基合金催化剂，无论是散装的还是负载的，都表现出对多种不饱和羰基化合物加氢的高选择性，并且几乎只产生不饱和醇。对于大块镍锡合金催化剂，要实现CO的高效加氢，需要较高的反应温度（453 K），而不是CC，由分散在TiO2上的镍锡合金组成的催化剂可以将反应温度显著降低到383 K。Ni3Sn2相和Ni3Sn合金相均对化学选择性的增强起作用。镍锡合金催化剂可重复使用，没有明显的选择性损失。
Inexpensive Ni–Sn-based alloy catalysts, both bulk and supported, exhibited high selectivity in the hydrogenation of a wide range of unsaturated carbonyl compounds and produced unsaturated alcohols almost exclusively. For the bulk Ni–Sn alloy catalysts, a relatively high reaction temperature of 453 K was required to achieve an efficient hydrogenation of CO rather than CC. The catalyst that consisted of the Ni–Sn alloy dispersed on TiO2 allowed a remarkable reduction of the reaction temperature to 383 K. Both the Ni3Sn2 and Ni3Sn alloy phases were found to be responsible for the enhancement of the chemoselectivity. The Ni–Sn alloy catalysts were reusable without any significant loss of selectivity.