Journal of Nanoscience and Nanotechnology, ( ISI ), Volume (16), No (6), Year (2016-6) , Pages (5856-5864)
Title : ( Structural Sensitivity of Carbon Monoxide Hydrogenation by Nano-Structured Iron Catalyst )
Authors: Ali Nakhaei Pour , soheila chakreh , Mohammad Reza Housaindokht , ali eftekhari ,Access to full-text not allowed by authors
Abstract
A new size dependence kinetic equation for chain growth factor in Fischer-Tropsch synthesis (FTS) was developed using a thermodynamic analysis method. For evaluation of structural sensitivity of FTS reaction, a series of iron oxide nanoparticles were prepared as a catalyst via precipitation by microemulsion method. The experimental results indicated that the difference between activation energies for propagation and termination reactions (Et - Ep) decreased with decreasing the catalyst particle size. Calculated size dependent model parameters were employed for evaluation of surface tension energy (σ) and size-independent activation energy for chain growth probabilities.