Syngas production for Fischer-Tropsch process via co-electrolytic processes of CO2 reduction and NH3 oxidation

Choi, Minjun; Kim, Jin Won; Chung, Sunki; Lee, Youjin; Bong, Sungyool; Lee, Jae-Young

doi:10.1016/j.cej.2021.132563

Cited by 12 publications

(9 citation statements)

References 35 publications

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“…Moreover, the selectivity of the CO 2 reduction reaction (CO 2 RR) in D 2 O-based electrolytes was increased because the competing DER was suppressed. Considering the similarity between the NRR and the CO 2 RR, [32] [33] Thus, the tendency of the production rate using isotopic labeling test is determined by the type of catalysts and the experimental condition including potentials and electrolytes, so that it can be an important evidence of water participation in NRR.…”

Section: Forschungsartikelmentioning

confidence: 99%

Local Proton Source Enhanced Nitrogen Reduction on a Combined Cobalt‐Molybdenum Catalyst for Electrochemical Ammonia Synthesis

Chung

Choi

et al. 2022

Angewandte Chemie

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Electrochemical nitrogen reduction reaction (NRR) under ambient conditions has attracted considerable scientific and engineering interest as a green alternative route for NH3 production. Molybdenum is a promising candidate as an electrocatalyst for NRR as it has a suitable binding strength with N species. However, the design of an efficient Mo‐based catalyst remains elusive. To enhance the selectivity of NRR toward NH3, we have developed a carbon nanofiber catalyst embedded with molybdenum and cobalt (Co−Mo−CNF). Co with a strong ability to dissociate water enhances local proton source near Mo, where the hydrogenation step of the NRR occurs. A NH3 formation rate of 72.72 μg h−1 mg−1 and a Faradaic efficiency of 34.5 % were obtained at −0.5 V vs. RHE. We also attempted to provide a mechanistic understanding of the NRR via in situ attenuated total reflectance surface‐enhanced infrared absorption spectroscopy (ATR‐SEIRAS) and isotopic labeling experiments using 15N2 and D2O.

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Section: Forschungsartikelmentioning

confidence: 99%

Local Proton Source Enhanced Nitrogen Reduction on a Combined Cobalt‐Molybdenum Catalyst for Electrochemical Ammonia Synthesis

Chung

Choi

et al. 2022

Angewandte Chemie

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“…13 Therein, the CO 2 reduction reaction (CO 2 RR) has attracted more attention due to the advantages such as the simple method, mild conditions, controllable processes, absence of secondary pollution, and feasibility for scale-up applications. [14][15][16] Nevertheless, the stable CQO chemical bonds, multiple-electron transfers, and various reaction products provide many challenges for improving the catalytic performance and selectivity. [17][18][19] Therefore, it is of great need to develop cost-effective electrocatalysts for the CO 2 RR to meet the demand for practical use and commercialization.…”

Section: Introductionmentioning

confidence: 99%

MOF-derived transition metal-based catalysts for the electrochemical reduction of CO₂to CO: a mini review

Zhang

Dong

et al. 2023

Chem. Commun.

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“…5 Carbon monoxide can be used to produce synthetic liquid fuels by the Fischer−Tropsch method, which is significant to the chemical industry among ECR products. 6 Noble metals (e.g., Pd, Au, and Ag) have been proven to be excellent electrocatalysts for their outstanding selectivity and activity for ECR. 7−9 Given that noble metals' scarcity, high cost, and toxicity hinder their practical commercial application, achieving low-cost and efficient CO 2 conversion remains challenging.…”

Section: ■ Introductionmentioning

confidence: 99%

S-Doped Ni^II-Triazolate Derived Ni–S–C Catalyst for Electrochemical CO₂ Reduction to CO

Zhang

Chen

Zheng

et al. 2022

ACS Appl. Energy Mater.

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Metal heteroatom doped carbon materials display remarkable catalytic performance in the electrochemical CO 2 reduction (ECR) because the doped heteroatoms can significantly change the local density of state and electronic structure of carbon, which induces charge polarization or structural defects. Herein, we synthesized S-doped Ni II -triazolate precursors with high purity and crystallinity through a simple one-step hydrothermal method. The high-temperature pyrolysis process produced a series of Ni−S−C T (T = 800, 900, 1000 °C) materials with Ni 3 S 2 as the main component. It resulted in significant carbon structure defects in the catalyst, which increased the specific surface area and pore volume, providing a basis for improving the ECR activity. Through the structural characterizations of powder X-ray diffraction (PXRD), Raman, X-ray photoelectron (XPS), Brunauer−Emmett−Teller (BET), transmission electron microscopy (TEM), and electrochemical characterizations of linear sweep voltammetry (LSV), chronoamperometry (i−t curve), electrochemical impedance spectroscopy (EIS), and electrochemical active surface area (ECSA), as well as gaseous product analysis, we can build the structural-performance relationship. Ni−S−C T catalysts all reached the highest CO Faraday efficiency at −1.5 V vs Ag/AgCl potential, among which Ni−S−C 1000 exhibited the best catalytic activity (FE CO of 66.6% and j CO of 1.28 mA/ cm 2 ). It also displayed excellent stability and recyclability, which could realize the efficient reuse of the catalyst. In addition, the density functional theory (DFT) calculation was carried out on Ni 3 S 2 to illustrate the ECR activity origination. It is the first report on Ni 3 S 2 -based catalysts in the application of ECR.

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Syngas production for Fischer-Tropsch process via co-electrolytic processes of CO2 reduction and NH3 oxidation

Cited by 12 publications

References 35 publications

Local Proton Source Enhanced Nitrogen Reduction on a Combined Cobalt‐Molybdenum Catalyst for Electrochemical Ammonia Synthesis

Local Proton Source Enhanced Nitrogen Reduction on a Combined Cobalt‐Molybdenum Catalyst for Electrochemical Ammonia Synthesis

MOF-derived transition metal-based catalysts for the electrochemical reduction of CO₂to CO: a mini review

S-Doped Ni^II-Triazolate Derived Ni–S–C Catalyst for Electrochemical CO₂ Reduction to CO

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Syngas production for Fischer-Tropsch process via co-electrolytic processes of CO2 reduction and NH3 oxidation

Cited by 12 publications

References 35 publications

Local Proton Source Enhanced Nitrogen Reduction on a Combined Cobalt‐Molybdenum Catalyst for Electrochemical Ammonia Synthesis

Local Proton Source Enhanced Nitrogen Reduction on a Combined Cobalt‐Molybdenum Catalyst for Electrochemical Ammonia Synthesis

MOF-derived transition metal-based catalysts for the electrochemical reduction of CO2to CO: a mini review

S-Doped NiII-Triazolate Derived Ni–S–C Catalyst for Electrochemical CO2 Reduction to CO

Contact Info

Product

Resources

About

MOF-derived transition metal-based catalysts for the electrochemical reduction of CO₂to CO: a mini review

S-Doped Ni^II-Triazolate Derived Ni–S–C Catalyst for Electrochemical CO₂ Reduction to CO