Design of Pd@Graphene oxide framework nanocatalyst with improved activity and recyclability in Suzuki-Miyaura cross-coupling reaction

Thuy Phuong Nhat Tran, Ashutosh Thakur, Dai Xuan Trinh, Anh Thi Ngoc Dao, Toshiaki Taniike

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

We describe a new method to synthesize a catalyst comprising of Pd nanoparticles encapsulated in a graphene oxide framework (Pd@GOF). GO was first intercalated with benzene-1,4-diboronic acid to afford a three-dimensional (3D) framework with uniform interlayer spaces, in which Pd nanoparticles were generated through salt reduction. Thus formed Pd nanoparticles were highly dispersed and stabilized inside a graphitic gallery space with a narrow particle size distribution. Thus obtained Pd@GOF catalyst exhibited an outperforming activity toward the Suzuki-Miyaura cross-coupling reaction in both polar and apolar solvents. Moreover, it can be reused for at least five cycles without any significant loss of the activity, while commercial Pd/C and Pd/GO exhibited a clear drop in the activity. These findings would establish the GOF as a promising scaffold to host noble metal nanoparticles and to construct desired metal@GOF nanocatalysts with improved activity and durability, which must be attractive for a broad range of practical applications.

Original languageEnglish
Pages (from-to)60-67
Number of pages8
JournalApplied Catalysis A: General
Volume549
DOIs
Publication statusPublished - 2018 Jan 1
Externally publishedYes

Keywords

  • Graphene oxide framework
  • Palladium nanocatalysts
  • Pore encapsulation
  • Suzuki-Miyaura cross-coupling

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

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