Abstract
A facile and simple approach for the synthesis of N-doped porous carbon supported Ni composites (Ni@C-PTA-N) from Ni-MOF-PTA-N was proposed. And the as-prepared Ni@C-PTA-N-T composites with different pyrolysis temperatures (T) were characterized by thermogravimetric analysis (TG), X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), scanning electron microscopy (SEM), transmission electron microscope (TEM) and X-ray photoelectron spectroscopy (XPS). The effect of T on the selective hydrogenation of phenol to cyclohexanol over Ni@C-PTA-N-T was studied. Results showed that the Ni@C-PTA-N-450 obtained at pyrolysis temperature of 450°C had the best hydrogenation performance. It showed 98.0% phenol conversion with 100% cyclohexanol selectivity under mild conditions within 2 h. This can be attributed to the uniformly dispersed smaller Ni nanoparticles owing to doping of N, and the strong interaction between the metal Ni to N–C support, which can facilitate H2 spillover on surface of catalyst.
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ACKNOWLEDGMENTS
We are grateful for the measurement assistants from Analysis and Testing Center of Northeast Petroleum University.
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Sun, H., Wang, S., Zhu, T. et al. Synthesis N-Doped Ni@C-PTA-N-T Catalysts for Highly Selective Hydrogenation of Phenol to Cyclohexanol. Russ. J. Phys. Chem. 96, 2829–2837 (2022). https://doi.org/10.1134/S0036024422130039
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DOI: https://doi.org/10.1134/S0036024422130039