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

The CH 4 -CO 2 reforming reaction can realize the utilization of both CH 4 and CO 2 , 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 Cu 3 (BTC) 2 in high yields. Cu 3 (BTC) 2 was subsequently used as a precursor and Cu 3 P 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 CH 4 -CO 2 reforming reaction, the Cu 3 P 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 CH 4 -CO 2 reforming reaction at 700 ℃ for 6 h, the conversion of Cu 3 P-350 did not change significantly, and the stability was significantly higher than that of Cu 3 P-300 and Cu 3 P-325. At the same time, when the phosphating temperature is lower than 375 ℃ Cu 3 P carbon accumulation are less. The amount of carbon accumulation increases when the phosphating temperature reaches 400 °C.