A review of plasma-assisted catalytic conversion of gaseous carbon dioxide and methane into value-added platform chemicals and fuels

Puliyalil, Harinarayanan; Jurković, Damjan Lašič; Dasireddy, Venkata D.B.C.; Likozar, Blaž

doi:10.1039/c8ra03146k

Cited by 173 publications

(136 citation statements)

References 242 publications

(363 reference statements)

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“…In the case of packing with γ-alumina, the distribution of C 2 products shifts towards a higher formation of unsaturated compounds, like C 2 H 2 and C 2 H 4 . The recombination reactions of CH x radicals (i.e., generated by dissociation of methane) are the predominant routes for the production of C 2 compounds, like C 2 H 2 , C2H4 and C 2 H 6 [27][28][29]. However, the distribution of CH x fragments (CH 3 , CH 2 , CH, C) is influenced by the presence of a metal (Pd) on the surface of a dielectric material (γ-alumina).…”

Section: The Conversion Of Methane and The Selectivity Of Productsmentioning

confidence: 99%

Plasma Catalytic Conversion of CH4 to Alkanes, Olefins and H2 in a Packed Bed DBD Reactor

Taheraslani

Gardeniers

2020

Processes

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Methane is activated at ambient conditions in a dielectric barrier discharge (DBD) plasma reactor packed with Pd/γ-alumina catalyst containing different loadings of Pd (0.5, 1, 5 wt%). Results indicate that the presence of Pd on γ-alumina substantially abates the formation of deposits, leads to a notable increase in the production of alkanes and olefins and additionally improves the energy efficiency compared to those obtained for the non-packed reactor and the bare γ-alumina packed reactor. A low amount of Pd (0.5 and 1 wt%) favors achieving a higher production of olefins (mainly C2H4 and C3H6) and a higher yield of H2. Increasing Pd loading to 5 wt% promotes the interaction of H2 and olefins, which consequently intensifies the successive hydrogenation of unsaturated compounds, thus incurring a higher production of alkanes (mainly C2H6 and C3H8). The substantial abatement of the deposits is ascribed to the role of Palladium in moderating the strength of the electric and shifting the reaction pathways, in the way that hydrogenation reactions of deposits’ precursors become faster than their deposition on the catalyst.

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Section: The Conversion Of Methane and The Selectivity Of Productsmentioning

confidence: 99%

Plasma Catalytic Conversion of CH4 to Alkanes, Olefins and H2 in a Packed Bed DBD Reactor

Taheraslani

Gardeniers

2020

Processes

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“…Although this paper provides a status on the use of nonthermal plasma for CO 2 conversion, we do not aim to give a systematic review of the state-of-the-art, and we refer to recent reviews on the topic Chen et al, 2018;Puliyalil et al, 2018;Qin et al, 2018;Debek et al, 2019). Rather, we aim to give a glimpse about possibilities and issues in this area from our personal perspective.…”

Section: Introductionmentioning

confidence: 99%

Plasma Technology for CO2 Conversion: A Personal Perspective on Prospects and Gaps

2020

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There is increasing interest in plasma technology for CO 2 conversion because it can operate at mild conditions and it can store fluctuating renewable electricity into value-added compounds and renewable fuels. This perspective paper aims to provide a view on the future for non-specialists who want to understand the role of plasma technology in the new scenario for sustainable and low-carbon energy and chemistry. Thus, it is prepared to give a personal view on future opportunities and challenges. First, we introduce the current state-of-the-art and the potential of plasma-based CO 2 conversion. Subsequently, we discuss the challenges to overcome the current limitations and to apply plasma technology on a large scale. The final section discusses the general context and the potential benefits of plasma-based CO 2 conversion for our life and the impact on climate change. It also includes a brief analysis on the future scenario for energy and chemical production, and how plasma technology may realize new paths for CO 2 utilization.

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“…Platinum‐based nanoparticulate electrocatalysts are currently the most widely used oxygen reduction catalysts in various fields of application, for example, metal–air batteries, plasma catalysis, or polymer–electrolyte membrane fuel cells . Given the socioeconomic implications of precious metal mining, it is necessary to optimize the performance of these materials as much as possible if widespread deployment of fuel cell technology is to become reality.…”

Section: Introductionmentioning

confidence: 99%

Simulations of the Oxidation and Degradation of Platinum Electrocatalysts

Kirchhoff

Braunwarth

Jung

et al. 2019

Small

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Improved understanding of the fundamental processes leading to degradation of platinum nanoparticle electrocatalysts is essential to the continued advancement of their catalytic activity and stability. To this end, the oxidation of platinum nanoparticles is simulated using a ReaxFF reactive force field within a grand-canonical Monte Carlo scheme. 2-4 nm cuboctahedral particles serve as model systems, for which electrochemical potential-dependent phase diagrams are constructed from the thermodynamically most stable oxide structures, including solvation and thermochemical contributions. Calculations in this study suggest that surface oxide structures should become thermodynamically stable at voltages around 0.80-0.85 V versus standard hydrogen electrode, which corresponds to typical fuel cell operating conditions. The potential presence of a surface oxide during catalysis is usually not accounted for in theoretical studies of Pt electrocatalysts. Beyond 1.1 V, fragmentation of the catalyst particles into [Pt 6 O 8 ] 4− clusters is observed. Density functional theory calculations confirm that [Pt 6 O 8 ] 4− is indeed stable and hydrophilic. These results suggest that the formation of [Pt 6 O 8 ] 4− may play an important role in platinum catalyst degradation as well as the electromotoric transport of Pt 2+/4+ ions in fuel cells.

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A review of plasma-assisted catalytic conversion of gaseous carbon dioxide and methane into value-added platform chemicals and fuels

Abstract: The review focuses on the valorisation of two major greenhouse gases (methane and carbon dioxide) utilising different hybrid plasma reactors where valuable chemicals such as higher hydrocarbons, alcohols, aldehydes, carboxylic acids, etc. are produced.

Cited by 173 publications

References 242 publications

Plasma Catalytic Conversion of CH4 to Alkanes, Olefins and H2 in a Packed Bed DBD Reactor

Plasma Catalytic Conversion of CH4 to Alkanes, Olefins and H2 in a Packed Bed DBD Reactor

Plasma Technology for CO2 Conversion: A Personal Perspective on Prospects and Gaps

Simulations of the Oxidation and Degradation of Platinum Electrocatalysts

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