Synthesis of Supported Planar Iron Oxide Nanoparticles and Their Chemo- and Stereoselectivity for Hydrogenation of Alkynes
作者:María Tejeda-Serrano、Jose R. Cabrero-Antonino、Virginia Mainar-Ruiz、Miguel López-Haro、Juan C. Hernández-Garrido、José J. Calvino、Antonio Leyva-Pérez、Avelino Corma
DOI:10.1021/acscatal.7b00037
日期:2017.5.5
not only, in batch, the semihydrogenation of different alkynes with good yields but also the removal of acetylene from ethylene streams with >99.9% conversion and selectivity. These efficient and robust non-noble-metal catalysts, alternative to existing industrial technologies based on Pd, constitute a step forward toward the design of fully sustainable and nontoxic selective hydrogenation solid catalysts
大自然使用酶通过结合Fe 2+和H +受体/供体催化活性位点来解离和转移H 2。仿生方法之后,据报道这里有很小的平面Fe 2,3+氧化物纳米颗粒(2.0±0.5 nm)负载在弱酸性无机氧化物(纳米晶TiO 2,ZrO 2,ZnO)上作为双功能催化剂解离和转移H 2对炔烃有化学选择性和立体选择性。该催化剂通过在载体的等电点处将Fe 0纳米颗粒氧化分散而合成。生成的Fe 2 +,3 +固体不仅批量催化不同炔烃的半氢化反应,而且收率高,而且从乙烯流中去除乙炔的转化率和选择性均> 99.9%。这些高效,耐用的非贵金属催化剂是基于Pd的现有工业技术的替代品,构成了朝着完全可持续且无毒的选择性加氢固体催化剂设计迈出的一步。