Improved H₂ utilization by Pd doping in cobalt catalysts for reductive amination of polypropylene glycol.

ABSTRACT: Cobalt based catalysts having enhanced H₂ dissociation and desorption were synthesized by inserting a trace amount of palladium. These catalysts were used for the reductive amination of polypropylene glycol (PPG) to polyetheramine (PEA). The catalytic activity toward PEA was significantly increased by incorporating an extremely low content of palladium (around 0.01 wt%) into cobalt based catalysts. The Pd inserted cobalt catalysts promoted reduction of cobalt oxide to cobalt metal and inhibited formation of cobalt nitride in the reductive amination. The Pd inserted cobalt catalysts not only enhanced hydrogen dissociation but also accelerated hydrogen desorption by increasing the electron density of cobalt through interaction between cobalt and palladium. These play a critical ro

SUBMITTER: Kim K 

PROVIDER: S-EPMC9058643 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature