MgFeCe Ternary Layered Double Hydroxide as Highly Efficient and Recyclable Heterogeneous Base Catalyst for Synthesis of Dimethyl Carbonate by Transesterification

Nayana T. Nivangune, Vivek V. Ranade, Ashutosh A. Kelkar*

*Corresponding author for this work

Research output: Contribution to journalArticle

12 Citations (Scopus)
229 Downloads (Pure)

Abstract

Abstract: A series of Mg3:Fex + Ce1−x LDHs (3:1) were synthesized by co-precipitation method by varying molar ratio of Fe:Ce between 1:0 to 0:1 (LDH-1 to LDH-6). All synthesized LDHs were characterized by XRD, FT-IR, TEM, N2 sorption, benzoic acid titration and XPS in detail and evaluated for selective synthesis of dimethyl carbonate by transesterification of ethylene carbonate with methanol. It was demonstrated that the structural and basic properties of synthesized LDHs were strongly dependent on the Fe:Ce molar ratio (Ce concentration). The correlation between their physicochemical properties and catalytic performance was studied in detail. Among all synthesized LDHs the best result was obtained with LDH-3 (Fe:Ce = 0.85:0.15) where LDH structure remained intact, and showed high number of strong basic sites on LDH surface. LDH-3 was recycled 7 times while maintaining high catalyst activity and selectivity towards DMC. The obtained results elucidate the important role of Ce in modifying the basic properties of LDH in enhancing the catalytic activity for DMC synthesis. Graphical Abstract: [Figure not available: see fulltext.].

Original languageEnglish
Pages (from-to)2558-2569
JournalCatalysis Letters
Volume147
Issue number10
Early online date03 Aug 2017
DOIs
Publication statusPublished - 01 Oct 2017
Externally publishedYes

Keywords

  • Dimethyl carbonate
  • Ethylene carbonate
  • Mg–Fe–Ce ternary hydrotalcite
  • Transesterification

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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