期刊
CATALYSTS
卷 12, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/catal12101146
关键词
partial oxidation of methane; syngas; boron nitride; rhodium; DRIFTS
资金
- Natural Science Foundation of Fujian Province [2020J01443]
The research on rhodium catalyst on boron nitride revealed the metallic state of Rh during the partial oxidation reaction, as well as the formation of B-OH and B-H with the reactive gaseous environment, synergistically boosting the POM activity.
The partial oxidation of methane (POM) is a promising method for converting methane to syngas. The transition metal supported on boron nitride (BN) has recently been studied as part of a catalog of emerging catalysts. However, the chemical state of the metal supported on BN during methane reforming is still in debate. In this work, we report a rhodium catalyst on boron nitride (Rh/BN) for the POM, with exceptional activity and long-term stability at 600 degrees C for 230 h. The Rh/BN catalyst was investigated by X-ray diffraction, X-ray photoelectron spectroscopy, Raman spectroscopy, transmission electron microscopy, and diffuse reflectance infrared Fourier transformed spectroscopy (DRIFTS). As revealed by in situ DRIFTS, the infrared band (2020 cm(-1)) of the product molecule, CO, adsorbed on the Rh, as the probe confirms the metallic state of Rh during the POM reaction. In addition, the results of in situ DRIFTS indicate that the reactive gaseous environment would react with the catalyst to form B-OH and B-H, which synergistically boost the POM activity.
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