Fabrication of Integrated Copper-Based Nanoparticles/Amorphous Metal–Organic Framework by a Facile Spray-Drying Method: Highly Enhanced CO2 Hydrogenation Activity for Methanol Synthesis

Yuko Mitsuka, Naoki Ogiwara, Megumi Mukoyoshi, Hiroshi Kitagawa, Tomokazu Yamamoto, Takaaki Toriyama, Syo Matsumura, Masaaki Haneda, Shogo Kawaguchi, Yoshiki Kubota, Hirokazu Kobayashi

Research output: Contribution to journalArticlepeer-review

Abstract

We report on Cu/amUiO-66, a composite made of Cu nanoparticles (NPs) and amorphous [Zr6O4(OH)4(BDC)6] (amUiO-66, BDC=1,4-benzenedicarboxylate), and Cu-ZnO/amUiO-66 made of Cu-ZnO nanocomposites and amUiO-66. Both structures were obtained via a spray-drying method and characterized using high-resolution transmission electron microscopy, energy dispersive spectra, powder X-ray diffraction and extended X-ray absorption fine structure. The catalytic activity of Cu/amUiO-66 for CO2 hydrogenation to methanol was 3-fold that of Cu/crystalline UiO-66. Moreover, Cu-ZnO/amUiO-66 enhanced the methanol production rate by 1.5-fold compared with Cu/amUiO-66 and 2.5-fold compared with γ-Al2O3-supported Cu-ZnO nanocomposites (Cu-ZnO/γ-Al2O3) as the representative hydrogenation catalyst. The high catalytic performance was investigated using in situ Fourier transform IR spectra. This is a first report of a catalyst comprising metal NPs and an amorphous metal–organic framework in a gas-phase reaction.

Original languageEnglish
Pages (from-to)22283-22288
Number of pages6
JournalAngewandte Chemie - International Edition
Volume60
Issue number41
DOIs
Publication statusPublished - Oct 4 2021

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

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