1. Fabrication of Integrated Copper‐Based Nanoparticles/Amorphous Metal–Organic Framework by a Facile Spray‐Drying Method: Highly Enhanced CO 2 Hydrogenation Activity for Methanol Synthesis
- Author
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Shogo Kawaguchi, Masaaki Haneda, Yoshiki Kubota, Naoki Ogiwara, Hiroshi Kitagawa, Megumi Mukoyoshi, Hirokazu Kobayashi, Tomokazu Yamamoto, Yuko Mitsuka, Syo Matsumura, and Takaaki Toriyama
- Subjects
Nanocomposite ,Amorphous metal ,Materials science ,Nanoparticle ,Infrared spectroscopy ,General Chemistry ,Heterogeneous catalysis ,Catalysis ,Amorphous solid ,chemistry.chemical_compound ,chemistry ,Chemical engineering ,Methanol - Abstract
We report on Cu/amUiO-66, a composite made of Cu nanoparticles (NPs) and amorphous [Zr6 O4 (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-Al2 O3 -supported Cu-ZnO nanocomposites (Cu-ZnO/γ-Al2 O3 ) 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.
- Published
- 2021
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