Transformation technologies for CO2 utilisation: Current status, challenges and future prospects

Kamkeng, Ariane D.N.; Wang, Meihong; Hu, Jun; Du, Wenli; Qian, Feng

doi:10.1016/j.cej.2020.128138

Cited by 265 publications

(127 citation statements)

References 258 publications

(355 reference statements)

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“…Among the different mitigation approaches, carbon dioxide conversion to value-added products via its reaction with "green" hydrogen, has gained particular attention [138][139][140][141]. A plethora of chemical compounds, such as methane, carbon monoxide, methanol, and various hydrocarbons and oxygenates can be obtained through CO 2 hydrogenation [138,142,143]. This particular route can concurrently utilize CO 2 emissions and the "green" hydrogen derived by the surplus power from non-intermittent Renewable Energy Sources (RES), providing, among others, CH 4 or CO through the reverse water-gas shift (rWGS) reaction (Equation ( 1)) and Sabatier reaction (Equation (2)), respectively:…”

Section: Co 2 Hydrogenationmentioning

confidence: 99%

Facet-Dependent Reactivity of Ceria Nanoparticles Exemplified by CeO2-Based Transition Metal Catalysts: A Critical Review

Konsolakis

Lykaki

2021

Catalysts

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The rational design and fabrication of highly-active and cost-efficient catalytic materials constitutes the main research pillar in catalysis field. In this context, the fine-tuning of size and shape at the nanometer scale can exert an intense impact not only on the inherent reactivity of catalyst’s counterparts but also on their interfacial interactions; it can also opening up new horizons for the development of highly active and robust materials. The present critical review, focusing mainly on our recent advances on the topic, aims to highlight the pivotal role of shape engineering in catalysis, exemplified by noble metal-free, CeO2-based transition metal catalysts (TMs/CeO2). The underlying mechanism of facet-dependent reactivity is initially discussed. The main implications of ceria nanoparticles’ shape engineering (rods, cubes, and polyhedra) in catalysis are next discussed, on the ground of some of the most pertinent heterogeneous reactions, such as CO2 hydrogenation, CO oxidation, and N2O decomposition. It is clearly revealed that shape functionalization can remarkably affect the intrinsic features and in turn the reactivity of ceria nanoparticles. More importantly, by combining ceria nanoparticles (CeO2 NPs) of specific architecture with various transition metals (e.g., Cu, Fe, Co, and Ni) remarkably active multifunctional composites can be obtained due mainly to the synergistic metalceria interactions. From the practical point of view, novel catalyst formulations with similar or even superior reactivity to that of noble metals can be obtained by co-adjusting the shape and composition of mixed oxides, such as Cu/ceria nanorods for CO oxidation and Ni/ceria nanorods for CO2 hydrogenation. The conclusions derived could provide the design principles of earth-abundant metal oxide catalysts for various real-life environmental and energy applications.

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Section: Co 2 Hydrogenationmentioning

confidence: 99%

Facet-Dependent Reactivity of Ceria Nanoparticles Exemplified by CeO2-Based Transition Metal Catalysts: A Critical Review

Konsolakis

Lykaki

2021

Catalysts

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“…In recent decades, carbon dioxide (CO 2 ) has attracted more attention as the atmospheric concentration of CO 2 has risen from 280 ppm (in 1750) to 400 ppm (in 2015) and numerous environmental issues have emerged [1,2] . To control CO 2 emissions, CO 2 capture and utilization (CCU) processes are preferred compared with CO 2 capture and storage (CCS) processes [3,4] . Some economically feasible routes have been developed for reutilizing CO 2 by producing targeted fuels and chemicals via processes such as chemical reforming, [5–7] thermochemical, [8] electrochemical, [9,10] photochemical, [11,12] biological, [13] and mineralization methods [14,15] .…”

Section: Introductionmentioning

confidence: 99%

A Cu₂O‐derived Polymeric Carbon Nitride Heterostructured Catalyst for the Electrochemical Reduction of Carbon Dioxide to Ethylene

Lin

Chen

et al. 2021

ChemSusChem

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The electroreduction of carbon dioxide to hydrocarbons has been proposed as a promising way to utilize CO2 and maintain the ecosystem carbon balance. However, the selective reduction of CO2 to C2 hydrocarbons is still challenging. In this study, a highly efficient heterostructured catalyst has been developed, composed of a carbon nitride (CN)‐encapsulated copper oxide hybrid (CuxO/CN). The interaction between the metal and carbon nitride in the heterostructured catalysts improves the intrinsic electrical conductivity and the charge transfer processes at metal–support interfaces. A remarkable enhancement in the selectivity of hydrocarbons is achieved with these modified Cu‐based electrocatalysts, with an onset potential of −0.4 V and high C2H4 faradaic efficiency of 42.2 %, and these catalysts can also effectively suppress H2 evolution during the CO2 reduction reaction. This work provides a simple and cost‐effective method for synthesizing CN‐encapsulated catalysts that provides the possibility of efficiently converting CO2 into C2 hydrocarbons.

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“…Concerning GHG climate change and manufacturing plant carbon tax, efficient technologies for CO 2 utilization have taken on added urgency. It is suggested that CO 2 footprints ought to be brought down to net‐zero around 2050 to restrict the global temperature increment below 1.5°C by 2100 4 . Contrary, there has been a continuous debate on the energy crisis due to the limited reserve of fossil fuels 5 .…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic equilibrium analysis of oxy‐dry reforming of biogas with CO₂ sequestration using Aspen HYSYS

Rosha

Kumar

Ibrahim

2021

Asia-Pacific J Chem Eng

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Hydrocarbon reforming route has gained immense attention for producing energy‐effective renewable fuels and/or chemicals in the recent era. In this simulation study, O2 addition and CH4 recycling's effect on the dry oxidative reforming reactor's performance was investigated. Aspen HYSYS simulation software was used to assess a biogas‐to‐syngas conversion process's feasibility by integrating with the CH4 recycling loop and CO2 sequestration in a dry oxidative reforming process. Simulation runs were performed by varying the O2/CH4 ratio content from 0 to 0.20 and temperature (450 to 700°C). Results illustrated that CH4 conversion improved by re‐injecting of unreacted CH4, followed by CO2 sequestration to a great extent. In dry oxidative reforming, at stoichiometry O2/CH4 ratio of 0.17, CH4 conversion (21.7%), and CO2 conversion (3.3%) were obtained at 500°C, with 1.2 H2/CO ratio. Further, 0.308 kg mole/h of H2 could be produced with biogas (1.0 kg mole/h) at optimal parameters 500°C (temperature) and 0.17 (O2/CH4 ratio) by using recycling loop in one cycle. Thus, dry oxidative reforming coupled with the CH4 recycling unit provides a better option for syngas/H2 production and remarkably addresses high energy demand in the dry reforming process.

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Transformation technologies for CO2 utilisation: Current status, challenges and future prospects

Cited by 265 publications

References 258 publications

Facet-Dependent Reactivity of Ceria Nanoparticles Exemplified by CeO2-Based Transition Metal Catalysts: A Critical Review

Facet-Dependent Reactivity of Ceria Nanoparticles Exemplified by CeO2-Based Transition Metal Catalysts: A Critical Review

A Cu₂O‐derived Polymeric Carbon Nitride Heterostructured Catalyst for the Electrochemical Reduction of Carbon Dioxide to Ethylene

Thermodynamic equilibrium analysis of oxy‐dry reforming of biogas with CO₂ sequestration using Aspen HYSYS

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Transformation technologies for CO2 utilisation: Current status, challenges and future prospects

Cited by 265 publications

References 258 publications

Facet-Dependent Reactivity of Ceria Nanoparticles Exemplified by CeO2-Based Transition Metal Catalysts: A Critical Review

Facet-Dependent Reactivity of Ceria Nanoparticles Exemplified by CeO2-Based Transition Metal Catalysts: A Critical Review

A Cu2O‐derived Polymeric Carbon Nitride Heterostructured Catalyst for the Electrochemical Reduction of Carbon Dioxide to Ethylene

Thermodynamic equilibrium analysis of oxy‐dry reforming of biogas with CO2 sequestration using Aspen HYSYS

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A Cu₂O‐derived Polymeric Carbon Nitride Heterostructured Catalyst for the Electrochemical Reduction of Carbon Dioxide to Ethylene

Thermodynamic equilibrium analysis of oxy‐dry reforming of biogas with CO₂ sequestration using Aspen HYSYS