Metal Catalysts Recycling and Heterogeneous/Homogeneous Catalysis
ExcerptHeterogeneous metal catalysts rather than homogeneous ones are recommended for industrial applications after considering their performance in activity, separation, and recycling . The recycling of metal catalysts is important from economic and environmental points of view. When supported and bulk metal catalysts are used in liquid-phase organic reactions, there is a possibility that active metal species are leaching away into the liquid phases [2,3]. The metal leaching would make it difficult for the catalysts to maintain their desired initial performance for repeated batch reactions and during continuous ones. The metal leaching would also cause some undesired contamination of products by the metal species dissolved in the reaction mixture, and the separation of the metal contaminants would be required to purify the products. Therefore, various novel methods have been proposed so far to immobilize/stabilize the active metal species and to separate/collect/reuse the dissolved metal species . In addition, knowledge on the heterogeneous and homogeneous natures of organic reactions using heterogeneous catalysts is important to discuss their reaction mechanisms and catalytically working active species. [...] View Full-Text
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Arai, M.; Zhao, F. Metal Catalysts Recycling and Heterogeneous/Homogeneous Catalysis. Catalysts 2015, 5, 868-870.
Arai M, Zhao F. Metal Catalysts Recycling and Heterogeneous/Homogeneous Catalysis. Catalysts. 2015; 5(2):868-870.Chicago/Turabian Style
Arai, Masahiko; Zhao, Fengyu. 2015. "Metal Catalysts Recycling and Heterogeneous/Homogeneous Catalysis." Catalysts 5, no. 2: 868-870.