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Ni-Amino Acid–CaAl-Layered Double Hydroxide Composites : Construction, Characterization and Catalytic Properties in Oxidative Transformations

Varga, Gábor; Timár, Zita; Muráth, Szabolcs; Kónya, Zoltán; Kukovecz, Ákos; Carlson, Stefan LU ; Sipos, Pál and Pálinkó, István (2017) In Topics in Catalysis 60(17-18). p.1429-1438
Abstract

Host–guest composite materials were prepared applying the anionic forms of Ni(II)-amino acid (l-histidine, l-cysteine, and l-tyrosine) as the guests and CaAl-layered double hydroxide (CaAl-LDH) as the host. The syntheses were performed either by introducing the amino acid anions first and then constructing the metal ion–amino acid complexes or intercalating the pre-prepared complexes in anionic forms. The pristine as well as the composite LDH samples were structurally characterized by X-ray diffractometry, mid IR spectroscopy and scanning electron microscopy. The structural features of the interlayer complexes were studied by UV–Vis, inductively coupled plasma optical emission, mid and far IR and X-ray absorption spectroscopies as well... (More)

Host–guest composite materials were prepared applying the anionic forms of Ni(II)-amino acid (l-histidine, l-cysteine, and l-tyrosine) as the guests and CaAl-layered double hydroxide (CaAl-LDH) as the host. The syntheses were performed either by introducing the amino acid anions first and then constructing the metal ion–amino acid complexes or intercalating the pre-prepared complexes in anionic forms. The pristine as well as the composite LDH samples were structurally characterized by X-ray diffractometry, mid IR spectroscopy and scanning electron microscopy. The structural features of the interlayer complexes were studied by UV–Vis, inductively coupled plasma optical emission, mid and far IR and X-ray absorption spectroscopies as well as energy-dispersed X-ray analysis. On the basis of the acquired data, structural models were constructed. The composites were applied as catalysts in the liquid-phase oxidation of cyclohexene applying peracetic acid and the in situ formed iodosyl benzene as oxidants. Using peracetic acid afforded epoxide, while applying iodosyl benzene provided cis diol as the major or exclusive oxidation product. The catalysts displayed good recycling properties.

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author
organization
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type
Contribution to journal
publication status
published
subject
keywords
Catalytic properties in oxidation reactions, Ni(II)-amino acid complexes in CaAl-LDH, Structural characterization, Synthesis methods
in
Topics in Catalysis
volume
60
issue
17-18
pages
1429 - 1438
publisher
Kluwer
external identifiers
  • scopus:85020098056
  • wos:000413848700016
ISSN
1022-5528
DOI
10.1007/s11244-017-0824-y
language
English
LU publication?
yes
id
fd6f313c-2088-4545-a500-255f614b19f2
date added to LUP
2017-06-28 09:26:56
date last changed
2018-02-19 01:13:52
@article{fd6f313c-2088-4545-a500-255f614b19f2,
  abstract     = {<p>Host–guest composite materials were prepared applying the anionic forms of Ni(II)-amino acid (l-histidine, l-cysteine, and l-tyrosine) as the guests and CaAl-layered double hydroxide (CaAl-LDH) as the host. The syntheses were performed either by introducing the amino acid anions first and then constructing the metal ion–amino acid complexes or intercalating the pre-prepared complexes in anionic forms. The pristine as well as the composite LDH samples were structurally characterized by X-ray diffractometry, mid IR spectroscopy and scanning electron microscopy. The structural features of the interlayer complexes were studied by UV–Vis, inductively coupled plasma optical emission, mid and far IR and X-ray absorption spectroscopies as well as energy-dispersed X-ray analysis. On the basis of the acquired data, structural models were constructed. The composites were applied as catalysts in the liquid-phase oxidation of cyclohexene applying peracetic acid and the in situ formed iodosyl benzene as oxidants. Using peracetic acid afforded epoxide, while applying iodosyl benzene provided cis diol as the major or exclusive oxidation product. The catalysts displayed good recycling properties.</p>},
  author       = {Varga, Gábor and Timár, Zita and Muráth, Szabolcs and Kónya, Zoltán and Kukovecz, Ákos and Carlson, Stefan and Sipos, Pál and Pálinkó, István},
  issn         = {1022-5528},
  keyword      = {Catalytic properties in oxidation reactions,Ni(II)-amino acid complexes in CaAl-LDH,Structural characterization,Synthesis methods},
  language     = {eng},
  number       = {17-18},
  pages        = {1429--1438},
  publisher    = {Kluwer},
  series       = {Topics in Catalysis},
  title        = {Ni-Amino Acid–CaAl-Layered Double Hydroxide Composites : Construction, Characterization and Catalytic Properties in Oxidative Transformations},
  url          = {http://dx.doi.org/10.1007/s11244-017-0824-y},
  volume       = {60},
  year         = {2017},
}