Photo from archive.org
Abstract Four separated peaks of the thermal reaction of the mixture between NH4Mn0.90Co0.05Mg0.05PO4⋅H2O and Li2CO3 were considered to be dehydration, deammoniation, polycondensation and decarbonization. Alternative technique for the conversion calculation… Click to show full abstract
Abstract Four separated peaks of the thermal reaction of the mixture between NH4Mn0.90Co0.05Mg0.05PO4⋅H2O and Li2CO3 were considered to be dehydration, deammoniation, polycondensation and decarbonization. Alternative technique for the conversion calculation was proposed by using the deconvoluted DTG peak after the Fraser–Suzuki equation was used. Iteration was used to estimate the activation energy E α . Each peak was confirmed as a single-step kinetic. Dual-plots were compared to choose the mechanisms. Mechanisms were found to be contracting cylinder, contracting sphere, assumed random nucleation and 2D diffusion. Pre-exponential factor was obtained from E α and mechanisms. Thermodynamic data were found to agree with the experimental data.
Journal Title: Chemical Physics Letters
Year Published: 2017
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!