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Iron Carbide Features
Iron carbide has excellent performance in terms of rate and electrochemical stability. It is considered to be the next-generation of anode material for lithium-ion batteries. It is also characterized by high hardness and stability. This allows lithium-ion batteries be used in extreme conditions.
Transition Metal Carbide Nanostructures Attract Attention
The nanostructures of the transition metal carbides have received much attention in recent years. This is especially true for iron carbide nanomaterials due to their excellent stability, high catalytic efficiency, and good biocompatibility. Features: Has important application potential for nanomagnetism and Tropsch catalysis (Tropsch), electrochemical energy storage conversion and biomedicine. However, the commonly used methods of preparation, such as solid phase reaction, sonochemical method, and Sol-gel method, are often agglomerated and have difficulty with phase control.
Iron Carbide Catalyst: Application
Zhao Yujun and his team from Tianjin have made great progress using Fe5C2 catalysts in the DMO system to produce alcohol. The researchers developed an innovative hydrogen and mixed gas carbonization, resulting in a relatively durable iron carbide catalyst.
Further studies found that the DMO hydrogenation reaction route using Fe5C2 was different from that of copper-based catalysts, in part because Fe5C2 could selectively activate -OH on the intermediate product methylglycolate (MG), such that adding hydrogen produced methyl acetate(MA) rather than ethylene glycol(EG) with copper-based cats. MA can be further hydrogenated on Fe5C2 with high selectivity to produce alcohol. Fe5C2 did not have significant CC bond-breaking activity. The higher reaction temperature (260 degrees Celsius) resulted in a 90% yield of ethanol, while the by-products were primarily MA. Fe5C2 catalysts are clearly superior to copper-based catalysts in terms of performance.
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