Ziegler-type hydrogenation catalysts made from group 8-10 transition metal precatalysts and AIR(3) cocatalysts: A critical review of the literature

作者：Alley William M; Hamdemir Isil K; Johnson Kimberly A; Finke Richard G^*

来源：Journal of Molecular Catalysis A: Chemical , 2010, 315(1): 1-27.

DOI：10.1016/j.molcata.2009.07.007

• Industrial polymer hydrogenation catalysts
• Catalyst composition and structure
• Homogeneous versus heterogeneous catalysis
• Ziegler-type nanocluster catalysis
• Catalyst synthesis variables

Ziegler-type hydrogenation catalysts (group 8-10 transition metal precatalysts plus AIR(3) cocatalysts) are one of the most important families of industrial hydrogenation catalysts, especially for polymer hydrogenation. Despite their similar to 40 year history of industrial use, there is a need for improved fundamental understanding in order to make further, rationally directed improvements in these catalysts. This review examines the existing literature on Ziegler-type hydrogenation catalysts, specifically: (i) the variables important to catalyst synthesis, (ii) the catalyst formation reaction mechanism, (iii) the compositional and structural nature of the active catalyst species, and (iv) the mechanism of catalytic hydrogenation. This review also (v) discusses the current approaches to the homogeneous versus heterogeneous catalysis question, with the goal of identifying if Ziegler-type hydrogenation catalysts are homogeneous (e.g., monometallic) versus heterogeneous (e.g., nanoclusters) as the true catalyst(s). A summary of the main insights from each section of the review is also given.

• 出版日期2010-1-2