Synthesis and structural characterization of CuCoFe–layered double hydroxides | ||
| The International Conference on Chemical and Environmental Engineering | ||
| Article 24, Volume 8, 8th International Conference on Chemical & Environmental Engineering, April 2016, Pages 390-402 PDF (1.28 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/iccee.2016.35132 | ||
| Authors | ||
| S. Said1; M. Riad2; S. Mikhail2 | ||
| 1Egyptian Petroleum Research Institute. corresponding author. | ||
| 2Egyptian Petroleum Research Institute. | ||
| Abstract | ||
| Abstract Layered double hydrox ides (LDHs) are a class of anion clays consisting of brucite-like host layers and interlayer anions, with versatility in composition, morphology and architecture. The CoFe- LDH catalyst with Co2+/Fe3+ molar ratio of 2 was synthesized via simple co-precipitation method. The binary CoFe-LDH catalyst was modified by insertion of Cu2+,within the brucite-like sheets to obtain ternary CuCoFe-LDH with different Cu2+/(Cu2++Co2+) molar contents of 35%, 60% and 100% . To investigate the impact of the copper content, a detailed characterization study was done to maximize the structural information through XRD, FT-IR, thermogravimetric measurements & N2 adsorption. The XRD results revealed that the CoFe, copper containing CoFe and CuFe prepared samples have typical layered structure with 3R layer & were well-crystallized. The copper rich LDH sample has Cu(OH)2& Cu2O as impurity phases beside LDH phase formation in opposite to authors reported the impossibility of CuFe-LDH phases formation due to strong Jahn–Teller effect. | ||
| Keywords | ||
| Layered double hydroxides compounds (LDHs); heterogeneous catalysis; structural characterization | ||
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