Next Article in Journal
Asymmetric Catalysis in Organic Synthesis
Previous Article in Journal
Reverse Water-Gas Shift Iron Catalyst Derived from Magnetite
Open AccessCommunication

One-Pot Solvent-Free Synthesis of N,N-Bis(2-Hydroxyethyl) Alkylamide from Triglycerides Using Zinc-Doped Calcium Oxide Nanospheroids as a Heterogeneous Catalyst

1
Department of Bionanosystem Engineering, Chonbuk National University, Jeonju 561756, Korea
2
Department of Mechanical Design Engineering, Chonbuk National University, Jeonju 561756, Korea
*
Authors to whom correspondence should be addressed.
Catalysts 2019, 9(9), 774; https://doi.org/10.3390/catal9090774
Received: 1 September 2019 / Revised: 12 September 2019 / Accepted: 13 September 2019 / Published: 14 September 2019
(This article belongs to the Special Issue Biomass Derived Heterogeneous and Homogeneous Catalysts)
N,N-Bis(2-hydroxyethyl) alkylamide or fatty acid diethanolamides (FADs) were prepared from a variety of triglycerides using diethanolamine in the presence of different transition metal-doped CaO nanocrystalline heterogeneous catalysts. The Zn-doped Cao nanospheroids were found to be the most efficient heterogeneous catalyst, with complete conversion of natural triglycerides to fatty acid diethanolamide in 30 min at 90 °C. The Zn/CaO nanoparticles were recyclable for up to six reaction cycles and showed complete conversion even at room temperature. The amidation reaction of natural triglycerides was found to follow the pseudo-first-order kinetic model, and the first-order rate constant was calculated as 0.171 min−1 for jatropha oil aminolysis. The activation energy (Ea) and pre-exponential factor (A) for the same reaction were found to be 47.8 kJ mol−1 and 4.75 × 108 min−1, respectively. View Full-Text
Keywords: nanospheroids; zinc-doped CaO; natural triglycerides; aminolysis; heterogeneous catalyst; recyclability nanospheroids; zinc-doped CaO; natural triglycerides; aminolysis; heterogeneous catalyst; recyclability
Show Figures

Graphical abstract

MDPI and ACS Style

Kumar, D.; Park, C.H.; Kim, C.S. One-Pot Solvent-Free Synthesis of N,N-Bis(2-Hydroxyethyl) Alkylamide from Triglycerides Using Zinc-Doped Calcium Oxide Nanospheroids as a Heterogeneous Catalyst. Catalysts 2019, 9, 774.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop