Influence of ni addition to a low-loaded palladium catalyst on the selective hydrogenation of 1-heptyne

Quimica nova

Lederhos, Cecilia R.¹  Badano, Juan M.¹  Quiroga, Mónica E.¹  L'Argentière, Pablo C.¹  Coloma-Pascual, Fernando² 

[1] Universidad Nacional del Litoral, Santa Fe, Argentina;Universidad de Alicante, Alicante, Spain

关键词: bimetallic catalysts;    alkyne;    Lindlar.;   

DOI  :  10.1590/S0100-40422010000400010

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Semi-hydrogenationof alkynes has industrial and academic relevance on a large scale. To increasethe activity, selectivity and lifetime of monometallic catalysts, the developmentof bimetallic catalysts has been investigated. 1-Heptyne hydrogenation overlow-loaded Pd and Ni monometallic and PdNi bimetallic catalysts was studiedin liquid phase at mild conditions. XPS results suggest that nickel additionto Pd modifies the electronic state of palladium as nickel loading is increased.Low-loaded Pd catalysts showed the highest selectivities (> 95%). The mostactive prepared catalyst, PdNi(1%), was more selective than the Lindlarcatalyst.

【 授权许可】

CC BY