Ag-Ni bimetallic SiBEA zeolite as an efficient catalyst of hydrodechlorination of 1,2-dichloroethane towards ethylene

作者：Srebowata A^*; Zielinska I; Baran R; Slowik G; Dzwigaj S

来源：Catalysis Communications, 2015, 69: 154-160.

DOI：10.1016/j.catcom.2015.06.009

• Ag
• Ni
• BEA
• 1,2-Dichloroethane
• Ethylene
• Hydrodechlorination

Dealuminated form of BEA zeolite with Si/Al ratio of 1500 was used for the synthesis of Ag(2.0)SiBEA, Ni(2.0)SiBEA and Ag(2.0)Ni(2.0)SiBEA by two-step postsynthesis method. The calcination of zeolite samples led to the formation of well dispersed isolated mononuclear Ag(I) and Ag-n(delta+) clusters and a pseudo-tetrahedral Ni(II), incorporated in BEA framework as evidenced by DR UV-vis investigations. The treatment of samples in flowing 10% H-2/Ar stream gave small (average 3.1. nm) and well dispersed metal nanoparticles. Reduced catalysts were investigated in 1,2-dichloroethane hydrodechlorination at atmospheric pressure, at low reaction temperature (523 K) with similar to 100% of selectivity to ethylene, desired product of the reaction.

• 出版日期2015-9-5