Application of electrochemically assisted synthesis of MOFs-derived phosphides as catalyst for CH4-CO2 reforming

The CH4-CO2 reforming reaction can realize the utilization of both CH4 and CO2, which is important to control the greenhouse effect and protect the environment. The development of low-cost, high-activity and high-stability reforming catalysts is the focus of research. This work used electrochemical methods to synthesize Cu3(BTC)2 in high yields. Cu3(BTC)2 was subsequently used as a precursor and Cu3P was synthesized by direct phosphorylation at different temperatures. Both high and low phosphatization temperatures can reduce the hydrogen precipitation performance of the prepared catalyst. In the CH4-CO2 reforming reaction, the Cu3P catalyst prepared at elevated temperature has more excellent activity and stability. However, the activity of the catalyst did not keep increasing with the increase of temperature. After the CH4-CO2 reforming reaction at 700 ℃ for 6 h, the conversion of Cu3P-350 did not change significantly, and the stability was significantly higher than that of Cu3P-300 and Cu3P-325. At the same time, when the phosphating temperature is lower than 375 ℃ Cu3P carbon accumulation are less. The amount of carbon accumulation increases when the phosphating temperature reaches 400 °C.

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