Modification of Ni/MCF catalyst and its catalytic performance for dry reforming of methane

The Ni-based catalyst is widely studied because of its abundant reserves, low price and certain catalytic performance. However, the sintering and carbon deposition problems of Ni-based catalysts have not been solved.

In order to solve the problem of sintering and carbon deposition of Ni-based catalyst in dry reforming of methane reaction, a metal-organic framework (MOFs) was formed with 2-methylimidazole and Ni2+, and a Ni-based catalyst with strong metal-support interaction was constructed on a nitridized mesoporous silicon foam (MCF) support with MOFs as the precursor. XRD﹑TEM﹑BET﹑H2-TPR﹑XPS﹑TG and other characterization results show that The N doping modification of MCF support by temperature programmed nitridation can improve the dispersion of active metal, reduce the particle size, enhance the metal-support interaction force, reduce the catalyst reduction degree, enhance the metal-support electron interaction force, and increase the content of high price state Niδ+ on the catalyst surface.