TY - JOUR
T1 - Mixed metal oxides derived from layered double hydroxide as catalysts for biodiesel production
AU - Gabriel, Rafaela
AU - Carvalho, Sandra H.V.de
AU - Duarte, José Leandro da Silva
AU - Oliveira, Leonardo M.T.M.
AU - Giannakoudakis, Dimitrios A.
AU - Triantafyllidis, Konstantinos S.
AU - Soletti, João I.
AU - Meili, Lucas
N1 - Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2022/1/25
Y1 - 2022/1/25
N2 - Demand for energy has increased globally due to population growth and socioeconomic development stemming from rapid industrialization and urbanization. This scenario worsens the dependence on energy resources and highlights the question regarding their availability, showing the fragility of non-renewable fossil fuels. In order to supply the growing world demand for energy and respond to environmental concerns, biodiesel was adopted as a mitigating solution to the problems arising from the burning of fossil fuels as it has a biodegradable, renewable and non-toxic character. Recently, many studies have given attention to the heterogeneous catalysts for the production of biodiesel, since some economic and technological problems were recognized in the production via homogeneous reaction. Among the studied catalysts, layered double hydroxides (LDH) have stood out for presenting adjustable properties according to the composition and methods of synthesis, which are directly associated with the structural, morphological and catalytic aspects of their oxides. This review article aims to elucidate the relationship between the structure, basicity, composition and catalytic activity of metal mixed oxides (MMOs) from LDHs. In addition, a comprehensive description is made of the advantages of using MMOs/LDH-based catalysts, of the reaction optimization parameters and of the regeneration and reuse processes of these minerals.
AB - Demand for energy has increased globally due to population growth and socioeconomic development stemming from rapid industrialization and urbanization. This scenario worsens the dependence on energy resources and highlights the question regarding their availability, showing the fragility of non-renewable fossil fuels. In order to supply the growing world demand for energy and respond to environmental concerns, biodiesel was adopted as a mitigating solution to the problems arising from the burning of fossil fuels as it has a biodegradable, renewable and non-toxic character. Recently, many studies have given attention to the heterogeneous catalysts for the production of biodiesel, since some economic and technological problems were recognized in the production via homogeneous reaction. Among the studied catalysts, layered double hydroxides (LDH) have stood out for presenting adjustable properties according to the composition and methods of synthesis, which are directly associated with the structural, morphological and catalytic aspects of their oxides. This review article aims to elucidate the relationship between the structure, basicity, composition and catalytic activity of metal mixed oxides (MMOs) from LDHs. In addition, a comprehensive description is made of the advantages of using MMOs/LDH-based catalysts, of the reaction optimization parameters and of the regeneration and reuse processes of these minerals.
KW - Biofuel
KW - Catalysis
KW - LDHs
KW - Mixed metals oxides
KW - Transesterification
UR - https://www.scopus.com/pages/publications/85121916834
U2 - 10.1016/j.apcata.2021.118470
DO - 10.1016/j.apcata.2021.118470
M3 - Review article
AN - SCOPUS:85121916834
SN - 0926-860X
VL - 630
JO - Applied Catalysis A: General
JF - Applied Catalysis A: General
M1 - 118470
ER -
