Issue 29, 2020

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

Abstract

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

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

Article information

Article type
Paper
Submitted
15 Feb 2020
Accepted
30 Jun 2020
First published
30 Jun 2020

New J. Chem., 2020,44, 12503-12513

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

P. Lv, D. Liu, B. Tian, X. Ma, M. Fan and L. Xu, New J. Chem., 2020, 44, 12503 DOI: 10.1039/D0NJ00818D

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