Analysis of Dry Reforming as direct route for gas phase CO2 conversion. The past, the present and future of catalytic DRM technologies

Saché, Estelle le; Reina, Tomás Ramírez

doi:10.1016/j.pecs.2021.100970

Cited by 125 publications

(65 citation statements)

References 328 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, CO 2 being a highly stable molecule thermodynamically, catalysts are needed for its conversion into various products. 8,[10][11][12] As far as the CO 2 catalytic upgrading routes are concerned, the dry reforming of methane (DRM), [13][14][15] the reverse water-gas shift (RWGS) [16][17][18][19] and the CO 2 methanation reactions 16,20,21 have attracted substantial attention in recent years. In DRM (eqn (1)), two of the most harmful greenhouse gases (CO 2 and CH 4 ) react to form syngas, which is a mixture of carbon monoxide (CO) and hydrogen (H 2 ).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Feasibility of switchable dual function materials as a flexible technology for CO₂ capture and utilisation and evidence of passive direct air capture

2022

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

“…However, CO 2 being a highly stable molecule thermodynamically, catalysts are needed for its conversion into various products. 8,10–12…”

Section: Introductionmentioning

confidence: 99%

Feasibility of switchable dual function materials as a flexible technology for CO₂ capture and utilisation and evidence of passive direct air capture

2022

View full text Add to dashboard Cite

show abstract

“…6−8 One significant deactivation mechanism for DRM catalysts is the sintering of the active metal sites, a high-temperature process by which the catalytically active metal atoms migrate (Ostwald ripening) 9,10 and/or metal particles coalesce and form less and/or fewer active sites for the reaction (sintering). 11,12 Our research groups have previously reported that the initial deactivation of Ni/Al 2 O 3 catalysts under DRM conditions is caused by the sintering of the Ni particles with an apparent activation energy of 161 kJ mol −1 . 13 In order to overcome catalyst deactivation due to sintering, overcoating the catalyst with a metal oxide layer by atomic layer deposition (ALD) has been shown to be an effective catalyst stabilization strategy.…”

Section: Introductionmentioning

confidence: 99%

Stabilizing Supported Ni Catalysts for Dry Reforming of Methane by Combined La Doping and Al Overcoating Using Atomic Layer Deposition

et al. 2022

View full text Add to dashboard Cite

Deposition of La 2 O 3 and Al 2 O 3 on Al 2 O 3 -supported Ni catalysts was performed to study their effects on heterogeneous catalysts for the dry reforming of methane (DRM) reaction. An alumina-supported Ni catalyst (Ni/Al 2 O 3 , 2 wt % of Ni), synthesized via incipient wetness impregnation, loses ∼87% of its initial activity within 45 h under DRM conditions. While overcoating of Al 2 O 3 on this catalyst via atomic layer deposition (ALD) helps stabilize the catalytic activity in long time-on-stream (TOS) tests, this overcoated catalyst is ca. 40 times less active than the uncoated catalyst at peak activity. This Al 2 O 3 -overcoated Ni/Al 2 O 3 catalyst also exhibits a long induction period (∼20 h) due to the slow reduction of Ni 2+ within the catalytically inactive nickel aluminate (NiAl 2 O 4 ) phase, formed by the interaction of metallic Ni with the Al 2 O 3 overcoat during pre-DRM treatment at the 700 °C reaction temperature. Here, we report that, while doping small amounts of La (∼0.03 wt %) into the Ni/Al 2 O 3 catalyst does not significantly affect the catalytic activity or stability by itself, the addition of ALD-Al 2 O 3 on top of the La 2 O 3 -promoted Ni catalysts significantly suppresses the long TOS deactivation, helps recover the peak activity of uncoated Ni/ Al 2 O 3 , and eliminates the DRM induction period. This strategy obtains the stabilization benefits of Al 2 O 3 overcoating on Ni/Al 2 O 3 while, at the same time, avoiding the formation of undesirable NiAl 2 O 4 species.

show abstract

“…Plasmas have already been investigated for hydrocarbon reforming processes, such as partial oxidation, dry reforming, steam reforming, and conversion of pure hydrocarbons (Tao et al, 2011;Wang et al, 2018;le Saché and Reina, 2022). The conversion of CO 2 , through pure CO 2 splitting, CO 2 hydrogenation, and artificial photosynthesis have also been studied (Snoeckx and Bogaerts, 2017;Tiwari et al, 2020;Saeidi et al, 2021;Ong et al, 2022).…”

Section: • Chemical Conversion • No Corrosion Of Metallic Electrodesmentioning

confidence: 99%

Plasma Technology–Preparing for the Electrified Future

Suk

Snoeckx

2022

Front. Mech. Eng.

View full text Add to dashboard Cite

We refer to the fourth state of matter as plasma, indicating ionized, electrically quasi-neutral gas. Electrical discharge in a gas medium is a normal and easy way of turning the gas into plasma in a moderate pressure condition. The electron temperature, electron density, and gas temperature characterize a quality of plasma. Particularly in the domain in terms of the electron temperature and gas temperature, we have room to design discharges to be a thermal plasma (both electron and gas temperature are in equilibrium) or non-thermal plasma (a couple of orders magnitude higher electron temperature than gas temperature). This indicates that the plasma chemistry, consisting of electron impact reactions and thermochemistry governed by the electron temperature and gas temperature, respectively, can be tailored to a certain extent. In this regard, we believe that plasma technology can be considered as a versatile reaction platform, which can replace and reinforce conventional combustion and catalyst-based ones in an electrified future. This perspective particularly highlights the opportunities for the combustion community in the field of low-temperature plasma technology, elaborating on the leashed potential of plasma chemistry and its similarities with combustion studies.

show abstract

Analysis of Dry Reforming as direct route for gas phase CO2 conversion. The past, the present and future of catalytic DRM technologies

Cited by 125 publications

References 328 publications

Feasibility of switchable dual function materials as a flexible technology for CO₂ capture and utilisation and evidence of passive direct air capture

Feasibility of switchable dual function materials as a flexible technology for CO₂ capture and utilisation and evidence of passive direct air capture

Stabilizing Supported Ni Catalysts for Dry Reforming of Methane by Combined La Doping and Al Overcoating Using Atomic Layer Deposition

Plasma Technology–Preparing for the Electrified Future

Contact Info

Product

Resources

About

Analysis of Dry Reforming as direct route for gas phase CO2 conversion. The past, the present and future of catalytic DRM technologies

Cited by 125 publications

References 328 publications

Feasibility of switchable dual function materials as a flexible technology for CO2 capture and utilisation and evidence of passive direct air capture

Feasibility of switchable dual function materials as a flexible technology for CO2 capture and utilisation and evidence of passive direct air capture

Stabilizing Supported Ni Catalysts for Dry Reforming of Methane by Combined La Doping and Al Overcoating Using Atomic Layer Deposition

Plasma Technology–Preparing for the Electrified Future

Contact Info

Product

Resources

About

Feasibility of switchable dual function materials as a flexible technology for CO₂ capture and utilisation and evidence of passive direct air capture

Feasibility of switchable dual function materials as a flexible technology for CO₂ capture and utilisation and evidence of passive direct air capture