Modulating the CO methanation activity of Ni catalyst by nitrogen doped carbon

• 来源期刊: 能源化学
• 年，卷（期）: 2018,（3）
• 页码范围: 898-902
• 页数: 5页
• 语种: 英文

摘要

Nitrogen doping has been proved to be an effective way to modify the properties of graphene and other carbon materials.Herein,we explore a composite with nitrogen doped carbon overlayers wrapping SiC substrate as a support for Ni (Ni/CN-SiC) and evaluate its effects on the methanation activity.The results show that both the activity and stability of Ni are enhanced.Characterization with STEM,XRD,XPS,Raman and H2-TPR indicates that nitrogen doping generates more defects in the carbon overlayers,which benefit the dispersion of Ni.Furthermore,the reduction of Ni is facilitated.