Carbon-based catalysts for Fischer–Tropsch synthesis

Chen, Yanping; Wei, Jiatong; Duyar, Melis S.; Ordomsky, Vitaly V.; Khodakov, Andreï Y.; Liu, Jian

doi:10.1039/d0cs00905a

Cited by 236 publications

(133 citation statements)

References 241 publications

(285 reference statements)

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“…Nanostructured carbon materials [7][8][9] seem to be suitable supports for iron FT catalysts, due to their unique nanostructures and properties: large surface area, good thermal and chemical stability, high thermal and electrical conductivity [5]. Furthermore, metal nanoparticles can be encapsulated inside carbon nanotubes (CNT).…”

Section: Introductionmentioning

confidence: 99%

Iron and copper nanoparticles inside and outside carbon nanotubes: Nanoconfinement, migration, interaction and catalytic performance in Fischer-Tropsch synthesis

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Hong

et al. 2021

Journal of Catalysis

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Carbon materials have attracted increasing attention as supports for metal catalysts. Ironcontaining carbon nanotubes often promoted with copper have found application in Fischer-Tropsch synthesis, which provides an alternative way for conversion of renewable feedstocks to chemicals and fuels. In carbon nanotubes, the active phase can be nanoconfined inside the channels or localized on the outer surface. In most of previous work, the distribution of metal nanoparticles inside or outside carbon nanotubes is considered to be immobile during the catalyst activation or catalytic reaction.In this paper, we uncovered remarkable mobility of both iron and copper species in the bimetallic catalysts between inner carbon nanotube channels and outer surface, which occurs in carbon monoxide and syngas, while almost no migration of iron species proceeds in the monometallic catalysts. This mobility is enhanced by noticeable fragility and defects in carbon nanotubes, which appear on their impregnation with the acid solutions of metal precursors and precursor decomposition. Remarkable mobility of iron and copper species in bimetallic catalysts affects the genesis of iron active sites, and enhances interaction of iron with the promoter. In the bimetallic iron-copper catalysts, the major increase in the activity was attributed to higher reaction turnover frequency over iron surface sites located in a close proximity with copper.

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Section: Introductionmentioning

confidence: 99%

Iron and copper nanoparticles inside and outside carbon nanotubes: Nanoconfinement, migration, interaction and catalytic performance in Fischer-Tropsch synthesis

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Hong

et al. 2021

Journal of Catalysis

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“…[2] As a typical product, CO, especially with high purity, is very attractive, because it can be readily used as an important feed-stock for a couple of chemical engineering processes such as Fischer-Tropsch synthesis. [3] Thus, efficient CO 2 -to-CO conversion catalysts with adequate activity and selectivity are highly desired.…”

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confidence: 99%

A Tandem Strategy for Enhancing Electrochemical CO₂ Reduction Activity of Single‐Atom Cu‐S₁N₃ Catalysts via Integration with Cu Nanoclusters

et al. 2021

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We developed a tandem electrocatalyst for CO 2 -to-CO conversion comprising the single Cu site co-coordinated with N and S anchored carbon matrix (Cu-S 1 N 3 ) and atomically dispersed Cu clusters (Cu x ), denoted as Cu-S 1 N 3 /Cu x . The as-prepared Cu-S 1 N 3 /Cu x composite presents a 100 % Faradaic efficiency towards CO generation (FE CO ) at À0.65 V vs. RHE and high FE CO over 90 % from À0.55 to À0.75 V, outperforming the analogues with Cu-N 4 (FE CO only 54 % at À0.7 V) and Cu-S 1 N 3 (FE CO 70 % at À0.7 V) configurations. The unsymmetrical Cu-S 1 N 3 atomic interface in the carbon basal plane possesses an optimized binding energy for the key intermediate *COOH compared with Cu-N 4 site. At the same time, the adjacent Cu x effectively promotes the protonation of *CO 2 À by accelerating water dissociation and offering *H to the Cu-S 1 N 3 active sites. This work provides a tandem strategy for facilitating proton-coupled electron transfer over the atomic-level catalytic sites.Electrochemical reduction CO 2 to value-added fuels using renewable electricity is one of appealing CO 2 utilization strategies for management of the global carbon balance. [1] Recent technoeconomic analysis shows that the reduction of CO 2 to CO or formic acid through two-electron transfer processes is the most economical approach for CO 2 conversion, owing to their high added value per KJ of electrical energy input. [2] As a typical product, CO, especially with high purity, is very attractive, because it can be readily used as an important feed-stock for a couple of chemical engineering processes such as Fischer-Tropsch synthesis. [3] Thus, efficient CO 2 -to-CO conversion catalysts with adequate activity and selectivity are highly desired.

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“…[88] Many groups attempted to gain information on the optimized iron particle size with high activity and product selectivity. [89][90][91] During FT reaction, the iron species usually undergo reconstruction, making it difficult to obtain precise correlation between the particle sizes and the intrinsic activity of Fe catalysts. Torres Galvis et al fabricated a series of CNFs-supported iron catalysts by incipient wetness impregnation to study the effect of iron carbide sizes on syngas conversions.…”

Section: Effect Of Metal Particle Sizementioning

confidence: 99%

“…One main challenge for the application of nanocarbon materials in syngas conversions is the high cost. [91] Tian et al prepared a series of Fe 3 C@C catalysts with different K contents via facile pyrolysis of iron-glucose precursors in N 2 flow. [124] Before the reaction, the precursor was activated by syngas, which induced the transformation of θ-Fe 3 C phase to the active χ-Fe 5 C 2 phase.…”

Section: Facilitating Synthesis Of Lower Olefinsmentioning

confidence: 99%

Functionalized Carbon Materials in Syngas Conversion

Chen

Wang

et al. 2021

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Functionalized carbon materials are widely used in heterogeneous catalysis due to their unique properties such as adjustable surface properties, excellent thermal conductivity, high surface areas, tunable porosity, and moderate interactions with guest metals. The transformation of syngas into hydrocarbons (known as the Fischer–Tropsch synthesis) or oxygenates is an exothermic reaction and is typically catalyzed by transition metals dispersed on functionalized supports. Various carbon materials have been employed in syngas conversions not only for improving the performance or decreasing the dosage of expensive active metals but also for building model catalysts for fundamental research. This article provides a critical review on recent advances in the utilization of carbon materials, in particular the recently developed functionalized nanocarbon materials, for syngas conversions to either hydrocarbons or oxygenates. The unique features of carbon materials in dispersing metal nanoparticles, heteroatom doping, surface modification, and building special nanoarchitectures are highlighted. The key factors that control the reaction course and the reaction mechanism are discussed to gain insights for the rational design of efficient carbon‐supported catalysts for syngas conversions. The challenges and future opportunities in developing functionalized carbon materials for syngas conversions are briefly analyzed.

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Carbon-based catalysts for Fischer–Tropsch synthesis

Abstract: The substantial progress of application of carbon-based catalysts in FTS has been systematically summarized and discussed in this review article.

Cited by 236 publications

References 241 publications

Iron and copper nanoparticles inside and outside carbon nanotubes: Nanoconfinement, migration, interaction and catalytic performance in Fischer-Tropsch synthesis

Iron and copper nanoparticles inside and outside carbon nanotubes: Nanoconfinement, migration, interaction and catalytic performance in Fischer-Tropsch synthesis

A Tandem Strategy for Enhancing Electrochemical CO₂ Reduction Activity of Single‐Atom Cu‐S₁N₃ Catalysts via Integration with Cu Nanoclusters

Functionalized Carbon Materials in Syngas Conversion

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Carbon-based catalysts for Fischer–Tropsch synthesis

Abstract: The substantial progress of application of carbon-based catalysts in FTS has been systematically summarized and discussed in this review article.

Cited by 236 publications

References 241 publications

Iron and copper nanoparticles inside and outside carbon nanotubes: Nanoconfinement, migration, interaction and catalytic performance in Fischer-Tropsch synthesis

Iron and copper nanoparticles inside and outside carbon nanotubes: Nanoconfinement, migration, interaction and catalytic performance in Fischer-Tropsch synthesis

A Tandem Strategy for Enhancing Electrochemical CO2 Reduction Activity of Single‐Atom Cu‐S1N3 Catalysts via Integration with Cu Nanoclusters

Functionalized Carbon Materials in Syngas Conversion

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A Tandem Strategy for Enhancing Electrochemical CO₂ Reduction Activity of Single‐Atom Cu‐S₁N₃ Catalysts via Integration with Cu Nanoclusters