In:
Chemical Communications, Royal Society of Chemistry (RSC), Vol. 58, No. 70 ( 2022), p. 9712-9727
Abstract:
Syngas conversion provides an important platform for efficient utilization of various carbon-containing resources such as coal, natural gas, biomass, solid waste and even CO 2 . Various value-added fuels and chemicals including paraffins, olefins and alcohols can be directly obtained from syngas conversion via the Fischer–Tropsch Synthesis (FTS) route. However, the product selectivity control still remains a grand challenge for FTS due to the limitation of Anderson–Schulz–Flory (ASF) distribution. Our previous works showed that, under moderate reaction conditions, Co 2 C nanoprisms with exposed (101) and (020) facets can directly convert syngas to olefins with low methane and high olefin selectivity, breaking the limitation of ASF. The application of Co 2 C-based nanocatalysts unlocks the potential of the Fischer–Tropsch process for producing olefins. In this feature article, we summarized the recent advances in developing highly efficient Co 2 C-based nanocatalysts and reaction pathways for direct syngas conversion to olefins via the Fischer–Tropsch to olefin (FTO) reaction. We mainly focused on the following aspects: the formation mechanism of Co 2 C, nanoeffects of Co 2 C-based FTO catalysts, morphology control of Co 2 C nanostructures, and the effects of promoters, supports and reactors on the catalytic performance. From the viewpoint of carbon utilization efficiency, we presented the recent efforts in decreasing the CO 2 selectivity for FTO reactions. In addition, the attempt to expand the target products to aromatics by coupling Co 2 C-based FTO catalysts and H-ZSM-5 zeolites was also made. In the end, future prospects for Co 2 C-based nanocatalysts for selective syngas conversion were proposed.
Type of Medium:
Online Resource
ISSN:
1359-7345
,
1364-548X
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2022
detail.hit.zdb_id:
1472881-3
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