CO₂ methanation over Co–Ni catalysts

Abstract

One of the major goals when creating new energy systems is to provide clean and affordable energy. Currently, there is an excessive increase in the cost of fossil fuels and natural gas because of increased energy consumption and the inability to meet demand. That is why it is necessary to find reliable renewable energy sources and processes that will produce energy materials without toxic by-products in order to preserve the environment and to ensuring sustainable development and a strong economy. From environmental safety reasons, this need has led to the development of the catalytic synthesis of energetic materials from greenhouse gases; in particular, this paper proposes an efficient approach to producing methane by hydrogenation of carbon dioxide over Co-Ni catalysts.

Heterogeneous Catalysts for Carbon Dioxide Methanation: A View on Catalytic Performance

“…Co-based catalysts are the most well-studied active component of Fischer-Tropsch synthesis (FTS), which generates hydrocarbons from syngas (a gas mixture of CO and H 2 ), as CO 2 can be converted into CO via reverse water gas shift reactions; therefore, studying Co-based catalysts for CO methanation is expected [191,192]. However, according to several studies, only a select few Co-based catalysts can concurrently achieve high CO 2 conversion, selectivity to CH 4 , and stability, as shown in Table 3 [167,168,[193][194][195].…”