Dry reforming of methane (DRM) is a promising expertise for changing greenhouse gases (CH4 and CO2) into syngas. Nevertheless, the standard thermal catalytic course of requires excessive temperature, leading to low selectivity, and coke-induced instability. On this research, a Y-doped nickel-based photothermal catalyst, NiY/fibrous nano-silica (KCC-1), was obtained for the DRM response, exhibiting glorious photothermal catalytic DRM exercise with a CO yield charge of above 90.01 mmol g−1 h−1 at 450 °C. The spatial confinement impact of KCC-1 enhanced the catalyst stability, sustaining contemporary exercise for as much as 40 hours. Varied characterization strategies reveal that sturdy d-electron switch from Y to Ni is helpful for preserving metallic Ni, which in flip promotes the adsorption and activation of CH4. In situ DRIFTS and DFT theoretical research additional elucidate the mechanism that the Y-doped technique not solely facilitates the adsorption and activation of CO2 (as a result of sturdy basicity of Y2O3) but additionally enhances the photothermal impact by facilitating the formation of metallic Ni0, leading to a larger era of p-CO32− intermediates to attain glorious photothermal catalytic efficiency. The findings of this research are anticipated to offer a uncommon earth metallic doping technique for designing extremely environment friendly photothermal catalysts for the synthesis of photo voltaic gasoline.
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