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Uniform and crystalline magnetite nanoparticles are facilely fabricated and utilized as an efficient catalyst in Fischer-Tropsch synthesis (FTS). The catalyst exhibits a high and stable activity with low methane selectivity, attributed to its remarkable structural and chemical stability at the realistic conditions of FTS.

CoFe nanowires mainly with exposed {110} planes show higher catalytic activity than nanosheets with exposed {1̄11} planes for Fischer–Tropsch synthesis.

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The application and limitation of the above characterization methods for qualitative and quantitative determination of various metal active sites in Cu-based or Fe-based zeolites for NH3-SCR are reviewed.

Cobalt-based catalysts have been widely used for Fischer–Tropsch synthesis (FTS) in industry; however, achieving rational catalyst design at the atomic level and thereby a higher activity and more long-chain-hydrocarbon products simultaneously remain an attractive and difficult challenge. The dual-atomic-site catalysts with unique electronic and geometric interface interactions offer a great opportunity for exploiting advanced FTS catalysts with improved performance. Herein, we designed a Ru1Zr1/Co catalyst with Ru and Zr dual atomic sites on the Co nanoparticle (NP) surface through a metal–organic-framework-mediated synthesis strategy which presents greatly enhanced FTS activity (high turnover frequency of 3.8 × 10–2 s–1 at 200 °C) and C5+ selectivity (80.7%). Control experiments presented a synergic effect between Ru and Zr single-atom site on Co NPs. Further density functional theory calculations of the chain growth process from C1 to C5 revealed that the designed Ru/Zr dual sites remarkably lower the rate-limiting barriers due to the significantly weakened C–O bond and promote the chain growth processes, resulting in the greatly boosted FTS performance. Therefore, our work demonstrates the effectiveness of dual-atomic-site design in promoting the FTS performance and provides new opportunities for developing efficient industrial catalysts.

The development of efficient homogeneous water oxidation catalysts (WOCs) is an important issue for the hydrogen production via water splitting. Copper complexes with well-defined structures are widely studied but the...