Tuning interaction between cobalt catalysts and nitrogen dopants in carbon nanospheres to promote Fischer-Tropsch synthesis

Cheng, Qingpeng; Zhao, Na; Lyu, Shuaishuai; Tian, Ye; Gao, Fei; Jiang, Zheng; Zhang, Jing; Tsubaki, Noritatsu; Li, Xingang

doi:10.1016/j.apcatb.2019.02.024

Cited by 67 publications

(34 citation statements)

References 60 publications

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“…The crystalline structures of SAPO‐34, H‐MOR, H−Y, and Al‐MCM‐41 zeolites obtained from different companies were confirmed by X‐ray diffraction analysis. In the XRD patterns (Figure ), all characteristic diffraction peak positions matched those reported for H‐MOR, SAPO‐34, and H−Y zeolite structure respectively, and no‐impurity phase was observed . For Al‐MCM‐41, the XRD pattern with 2 theta at the range of 2–8° was presented in below.…”

Section: Resultssupporting

confidence: 66%

Catalytic Oligomerization of Isobutyl Alcohol to Hydrocarbon Liquid Fuels over Acidic Zeolite Catalysts

Guo

Suzuki

et al. 2020

ChemistrySelect

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Catalytic isobutyl alcohol oligomerization to generate hydrocarbon liquid fuels over zeolite has been investigated over H−Y, SAPO‐34, H‐MOR zeolite and Al‐MCM‐41 catalysts, as a new way to direct conversion of isobutyl alcohol to hydrocarbon liquid fuels, considering the fact that isobutyl alcohol can be obtained from biomass by microbes. In this study, all of the zeolite samples showed good reactivity, especially H‐MOR, achieving 94 % conversion of isobutyl alcohol and 63 % selectivity of C5+ liquid fuels in all products. The effects of reaction conditions including reaction temperature and reaction time were also discussed. The physicochemical properties of the catalysts were characterized by XRD, Nitrogen adsorption‐desorption, NH3‐TPD, TG/DTA, and GS/MS. The reaction system discussed here involves two reactions, i) isobutyl alcohol dehydration reaction via a typical acid catalysis, ii) a polymerization reaction of small molecules into large ones, according to the experimental and characterization results, the pore size and acid property of the zeolite are the two main factors controlling this catalytic dehydration and oligomerization reaction.

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Section: Resultssupporting

confidence: 66%

Catalytic Oligomerization of Isobutyl Alcohol to Hydrocarbon Liquid Fuels over Acidic Zeolite Catalysts

Guo

Suzuki

et al. 2020

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“…[35][36][37][38] The pyridinic N structure has been proposed as one of the most favorable metal-nitrogen coordination species for M-N-C catalysts. [39][40][41] Thus, rational designs for M-N coordination configurations may offer promising opportunities in obtaining high-efficient M-N-C catalysts with high amounts of metal active centers and an optimized coordination environment. [42][43][44][45][46] Despite the broad prospects of M-N-C catalysis and progress being made over the past decade in catalytic applications of ORR OER, HER, and CO2RR, the precise control of coordination configuration of the metal with nitrogen still remains a major challenge in the in-depth exploration of the catalytic mechanism of the M-N-C catalysts.…”

Section: Introductionmentioning

confidence: 99%

Metal–Nitrogen–Carbon Catalysts of Specifically Coordinated Configurations toward Typical Electrochemical Redox Reactions

et al. 2021

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Metal-nitrogen-carbon (M-N-C) material with specifically coordinated configurations is a promising alternative to costly Pt-based catalysts. In the past few years, great progress is made in the studies of M-N-C materials, including the structure modulation and local coordination environment identification via advanced synthetic strategies and characterization techniques, which boost the electrocatalytic performances and deepen the understanding of the underlying fundamentals. In this review, the most recent advances of M-N-C catalysts with specifically coordinated configurations of M-N x (x = 1-6) are summarized as comprehensively as possible, with an emphasis on the synthetic strategy, characterization techniques, and applications in typical electrocatalytic reactions of the oxygen reduction reaction, oxygen evolution reaction, hydrogen evolution reaction, CO 2 reduction reaction, etc., along with mechanistic exploration by experiments and theoretical calculations. Furthermore, the challenges and potential perspectives for the future development of M-N-C catalysts are discussed.

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“…Cheng et al. also reported that N‐doped carbon nanospheres as cobalt catalyst support attained an improved FTS activity [17] . However, the N‐doped carbon material preparation is complex and unfriendly to the environment because these N‐doped carbon materials preparation generally requires flowing of NH 3 , HCN or pyridine at high temperature, thus restricting its wide application in industrial catalysis [18–21] .…”

Section: Introductionmentioning

confidence: 99%

“…[16] Cheng et al also reported that N-doped carbon nanospheres as cobalt catalyst support attained an improved FTS activity. [17] However, the N-doped carbon material preparation is complex and unfriendly to the environment because these Ndoped carbon materials preparation generally requires flowing of NH 3 , HCN or pyridine at high temperature, thus restricting its wide application in industrial catalysis. [18][19][20][21] Hence, it is urgent and desirable to develop a facile and green strategy to prepare nitrogen-doped carbon material and reveal the functions of N dopants in FTS and then promote it wide use in related catalytic systems.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ba and CN Additives on the Catalytic Performance of Co/Al₂O₃ in Fischer−Tropsch Synthesis

Guo

Niu

et al. 2021

ChemCatChem

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A simple and effective method to modify Co/Al2O3 catalyst to improve the catalytic performance in Fischer‐Tropsch synthesis reaction is described. It is found that the electron density on the cobalt surface increases via electron donation from the dopant Ba and CN species, leading to an enhanced C5+ selectivity and C3 o/p ratio. However, the presence of Ba increases the cobalt crystalline size while the introduction of CN species leads to the formation of smaller cobalt nanoparticles and greatly increases their dispersion, thus resulting in a different distribution of heavy hydrocarbon products. Our work offers a new avenue to obtain catalyst with high activity and selectivity.

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Tuning interaction between cobalt catalysts and nitrogen dopants in carbon nanospheres to promote Fischer-Tropsch synthesis

Cited by 67 publications

References 60 publications

Catalytic Oligomerization of Isobutyl Alcohol to Hydrocarbon Liquid Fuels over Acidic Zeolite Catalysts

Catalytic Oligomerization of Isobutyl Alcohol to Hydrocarbon Liquid Fuels over Acidic Zeolite Catalysts

Metal–Nitrogen–Carbon Catalysts of Specifically Coordinated Configurations toward Typical Electrochemical Redox Reactions

Effect of Ba and CN Additives on the Catalytic Performance of Co/Al₂O₃ in Fischer−Tropsch Synthesis

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Tuning interaction between cobalt catalysts and nitrogen dopants in carbon nanospheres to promote Fischer-Tropsch synthesis

Cited by 67 publications

References 60 publications

Catalytic Oligomerization of Isobutyl Alcohol to Hydrocarbon Liquid Fuels over Acidic Zeolite Catalysts

Catalytic Oligomerization of Isobutyl Alcohol to Hydrocarbon Liquid Fuels over Acidic Zeolite Catalysts

Metal–Nitrogen–Carbon Catalysts of Specifically Coordinated Configurations toward Typical Electrochemical Redox Reactions

Effect of Ba and CN Additives on the Catalytic Performance of Co/Al2O3 in Fischer−Tropsch Synthesis

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Effect of Ba and CN Additives on the Catalytic Performance of Co/Al₂O₃ in Fischer−Tropsch Synthesis