Preparation of biomass-derived porous carbon supported Ni nanoparticles for CO2 reforming of CH4

摘要: Dry reforming of methane (DRM) can not only convert and utilize both CH4 CO2 greenhouse gases, but also produce an ideal chemical feedstock (syngas). Nevertheless, a significant challenge is the development low cost as well highly active stable catalyst for this transformation process. Herein, we report Ni/bio-char integrating advantages biomass-derived carbon supports non-noble metals using simple impregnation method. The bio-char are derived from waste walnut shells, which possess well-developed porous structure, abundant functional groups, appreciable amount alkaline earth metals, such Ca Mg. Compared to Ni/CC (Ni supported on coal-derived coke), as-prepared 10Ni/bio-char exhibits superior activity significantly enhanced stability, achieving 90.7% conversion 97.6% at 800 °C. Furthermore, reaction mechanism DRM over was proposed based experimental results literature studies.