Surface modification of graphene oxide by citric acid and its application as a heterogeneous nanocatalyst in organic condensation reaction

Ali Maleki; Zoleikha Hajizadeh; Hamid Abbasi

doi:10.5714/CL.2018.27.042

Surface modification of graphene oxide by citric acid and its application as a heterogeneous nanocatalyst in organic condensation reaction

Carbon Letters
Abbr : Carbon Lett.
2018, 27(1), pp.42-49
DOI : 10.5714/CL.2018.27.042
Publisher : Korean Carbon Society
Research Area : Natural Science > Natural Science General > Other Natural Sciences General

Ali Maleki ¹, Zoleikha Hajizadeh ¹, Hamid Abbasi ¹

¹Iran University of Science and Technology

Accredited

ABSTRACT

A citric acid functionalized graphene oxide nanocomposite was successfully synthesized and the structure and morphology of the nanocatalyst were comprehensively characterized by Fourier transform infrared spectroscopy, energy-dispersive X-ray analysis, X-ray diffraction patterns, atomic force microscopy images, scanning electron microscopy images, transmission electron microscopy images, and thermogravimetric analysis. The application of this nanocatalyst was exemplified in an important condensation reaction to give imidazole derivatives in high yields and short reaction times at room temperature. The catalyst shows high catalytic activity and could be reused after simple work up and easy purification for at least six cycles without significant loss of activity, which indicates efficient immobilizing of citrate groups on the surface of graphene oxide sheets.

KEYWORDS

graphene oxide, citric acid, heterogeneous catalyst, nanocomposite, imidazole

Citation status

This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-28)

Total Citation Counts(KCI+WOS) (59) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (62) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

* References for papers published after 2023 are currently being built.

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Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 6.04

Surface modification of graphene oxide by citric acid and its application as a heterogeneous nanocatalyst in organic condensation reaction

ABSTRACT

KEYWORDS

Citation status

This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-28)

Total Citation Counts(KCI+WOS) (59) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (62) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

* References for papers published after 2023 are currently being built.

Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 6.04

Surface modification of graphene oxide by citric acid and its application as a heterogeneous nanocatalyst in organic condensation reaction

ABSTRACT

KEYWORDS

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KCI Citation Counts (1)

WoS Citation Counts (58) This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-28)

Total Citation Counts(KCI+WOS) (59) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (62) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

REFERENCES (33) * References for papers published after 2023 are currently being built.

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This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-28)

* References for papers published after 2023 are currently being built.