Cost-Effective Synthesis of Fe₅C₂ Catalyst From Nanosized Zero-Valent Iron to Achieve Efficient Photothermocatalytic CO Hydrogenation to Light Olefins.

ABSTRACT: Fe-based catalysts are commonly applied in the process of Fischer-Tropsch synthesis (FTS) to olefins, with Hägg iron carbide (Fe₅C₂) recognized as the primary active phase. However, iron carbonyls, the raw materials for wet chemical synthesis of Fe₅C₂, are expensive and toxic, which limits large-scale preparation. Here, a cost-effective and versatile method is proposed for the synthesis of Fe₅C₂ nanoparticles (NPs) with nanosized zero-valent iron (abbreviated as NZVI, prepared by reducing iron salts or ball-milling iron powder) instead of iron carbonyls, achieving a cost reduction of 76.8%. Experimental characterizations revealed that NZVI obtained from the reduction of iron salts can catalyze the cracking of octadecylamine

SUBMITTER: Xu Y 

PROVIDER: S-EPMC11775531 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature