Nickel-magnesia solid solution catalyst with low Ni content had excellent stability for CO2 reforming of methane and steam reforming under low steam to methane ratio at 1123 K without deposited carbon. The deactivation due to oxidation of active nickel species observed under some reaction condition. Nickel-magnesia solid solution and magnesia supported nickel catalysts were characterized by means of FTIR, temperature programmed reaction of CO2. It was found that small nickel particles formed on Ni 0.03Mg0.97O solid solution catalyst have high ability to reduce CO 2. Though this ability causes the deactivation due to oxidation, this also plays an important role in inhibiting carbon deposition.
ASJC Scopus subject areas
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Surfaces, Coatings and Films
- Materials Chemistry