CO 2 reforming with methane over small-sized Ni@SiO 2 catalysts with unique features of sintering-free and low carbon

By Fagen Wang, Bolin Han, Linjia Zhang, Leilei Xu, Hao Yu, Weidong Shi. Applied Catalysis B: Environmental, 2018

167 citations recorded by the source corpus.

Abstract Sintering-free and carbon-free Ni catalysts developments are hot topics for high temperature hydrocarbons catalytic reactions. Core-shell is a promising structure to limit sintering, but ineffective towards carbon deposition if big sized Ni nanoparticles are present. In this work, core-shell structured Ni@SiO2 catalysts with small-sized Ni nanoparticles (about 5 nm) were synthesized by microemulsion method, which are featured by both sintering-free and low carbon deposits for high temperature CO2 reforming with methane reaction. The advantages were originated from the silica shell overlay confined moving space of Ni nanoparticles and the small size of Ni nanoparticles guaranteed low carbon diffusion in Ni crystals. The work provides a simple approach to synthesize small-sized Ni nanoparticles in core-shell catalysts for stable performance of CO2 reforming with methane reaction. It is supposed that this type of catalyst could also be applied in many other hydrocarbon catalytic reactions involving sintering and carbon problems.

Subfields: Catalysis, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/8fe5fd744eda75076dcb8b60169287bb28ad3a17

Citations in the corpus

• Embedded Ni nanoparticles in CeZrO2 as stable catalyst for dry reforming of methane (2020, unknown): “Ni@SiO 2 [15] and Ni@Al 2 O 3 [16] catalysts exhibited high resistance to metal sintering during the DRM but carbon formation was not totally inhibited.”