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- W2775687978 abstract "Nickel-based catalysts represent the most commonly used systems for CO methanation. We have successfully prepared a Ni catalyst system supported on two-dimensional plasma-treated vermiculite (2D-PVMT) with a very low Ni loading (0.5 wt%). The catalyst precursor was subjected to heat treatment via either conventional heat treatment (CHT) or the plasma irradiation method (PIM). The as-obtained CHT-Ni/PVMT and PIM-Ni/PVMT catalysts were characterized with scanning electron microscopy (SEM), energy dispersive X-ray (EDX), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and high-angle annular dark field scanning transmission electron microscopy (HAADF-STEM). Additionally, CHT-NiO/PVMT and PIM-NiO/PVMT catalysts were characterized with hydrogen temperature programmed reduction (H2-TPR). Compared with CHT-Ni/PVMT, PIM-Ni/PVMT exhibited superior catalytic performance. The plasma treated catalyst PIM-Ni/PVMT achieved a CO conversion of 93.5% and a turnover frequency (TOF) of 0.8537 s− 1, at a temperature of 450 °C, a gas hourly space velocity of 6000 ml·g− 1·h− 1, a synthesis gas flow rate of 65 ml·min− 1, and a pressure of 1.5 MPa. Plasma irradiation may provide a successful strategy for the preparation of catalysts with very low metal loadings which exhibit excellent properties." @default.
- W2775687978 created "2017-12-22" @default.
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- W2775687978 date "2018-09-01" @default.
- W2775687978 modified "2023-10-11" @default.
- W2775687978 title "Ultralow-weight loading Ni catalyst supported on two-dimensional vermiculite for carbon monoxide methanation" @default.
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- W2775687978 doi "https://doi.org/10.1016/j.cjche.2017.10.024" @default.
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