Steering of catalyst structures towards coke-free catalyst
Dry reforming of methane (DRM) is an endothermic catalytic process (CH4 + CO2 ↔ 2 CO + 2 H2) that can produce clean and green H2 fuel and synthesis gas (CO/H2). The syngas produced can be utilized for the production of fuels and high value-added chemicals such as methanol, dimethyl ether, acetic acid, and other oxygenated chemicals and long chain hydrocarbons via Fischer-Tropsch (FT) synthesis. DRM is also an attractive alternative for CO2 utilization and recycling, which consequently mitigates global warming as it uses two main greenhouse gases. However, it has not been industrialized yet due to the lack of development of robust catalysts that can sustain coke-free operation and high resistance to metal sintering at high temperatures. Ni-based catalysts present an economically viable alternative compared to noble metal-based catalysts. However, they suffer mainly from carbon deposition, which ultimately leads to catalyst deactivation. The Ni-supported catalysts prepared in the present invention showed excellent stability and carbon formation reduction.
