Electro-conversion of methane to alcohols on “capsule-like” binary metal oxide catalysts

Xu, Nengneng; Coco, Cameron A.; Wang, Yudong; Su, Tianshun; Wang, Yu; Peng, Luwei; Zhang, Dengsong; Liu, Yuyu; Qiao, Jinli; Zhou, Xiao‐Dong

doi:10.1016/j.apcatb.2020.119572

Cited by 31 publications

(31 citation statements)

References 51 publications

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“…Thus, the inherent features of catalysts are influential as well in determining the efficiency. Indeed, some recent studies have highlighted that the electrocatalytic activity of transition metal oxides (TMOs) can be sensibly influenced by the change of inherent features such as charge distribution, 4,5 spin state, 6,7 and magnetic ordering. 8 Catalytic enhancement induced by the change of such features is attributed to two aspects; one is the optimized surface bonding, while the other is the improved intrinsic properties that are beneficial to an increased reaction activity, such as the expedited charge transfer ability, 4,6 optimized metal−oxygen covalency, 5 and fine-tuned exchange interactions.…”

Section: Introductionmentioning

confidence: 99%

Catalytically Influential Features in Transition Metal Oxides

Sun

Gao

et al. 2021

ACS Catal.

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The development of efficient catalysts is critical in advancing electrocatalysis techniques. While tremendous progress has been made on the perspective of optimizing the catalyst–reactant interaction, the influence from other properties has received relatively less attention to date. These properties are normally originated from the intrinsic solid-state properties and can be circumstantially influential on the reaction activity and reaction mechanism. In particular, transition metal oxides (TMOs) possess complex inherent features that enable a wide variety of catalytically influential properties. Therefore, understanding the inherent features in TMOs and mastering the strategies to take full advantage of them will bring opportunities for further advances. Here we provide an overview of the inherent features in TMOs and conceptually discuss how they can alter the catalytic behaviors in electrocatalysis. Perspectives to take full advantage of these features are also proposed for a better design of TMO-based electrocatalysts.

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Section: Introductionmentioning

confidence: 99%

Catalytically Influential Features in Transition Metal Oxides

Sun

Gao

et al. 2021

ACS Catal.

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“…40 Under anodic potential, the adsorbed CO 3 2− may be separated into O* and CO 2 through electron and proton transfer (eq 1). 41 It is confirmed by in situ mass spectrometry that CO 2 is not produced by deep oxidation of CH 4 (Figure S6). Indeed, gas-phase GC analysis shows the evolution of CO 2 during the reaction (Figure 3c).…”

mentioning

confidence: 68%

Solar Cell-Powered Electrochemical Methane-to-Methanol Conversion with CuO/CeO₂ Catalysts

2021

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Electrochemical CH4 oxidation is attractive as a strategy capable of conversion with high selectivity, but improving productivity remains a challenge. We demonstrate that CuO/CeO2 can serve as a catalyst for the room-temperature conversion of CH4 to CH3OH in the presence of CO3 2–. At an optimized ratio of CuO/CeO2 (Cu:Ce = 6:4), we achieve the highest production rate of 752.9 μmol/gcat/h (6 h reaction) at ambient pressure; among the oxygenates, a CH3OH selectivity of 79% is obtained. In an experiment using isotopes, we confirm that CH4 is activated by active oxygen on the catalyst surface provided from CO3 2– to form CH3OH. Furthermore, we demonstrate a solar cell-powered electrochemical CH4 conversion. In the 12 h reaction, a CH3OH production of 7165.0 μmol/gcat at ambient pressure and 21986.6 μmol/gcat at 10 bar is obtained.

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“… 129 Exploiting the new possibilities offered by the electrocatalytic conversion of biomethane, which has been at large unexplored up to now. 130 , 131 Exploring more systematically the many possible new paths, offering also process intensification, given by tandem and/or paired electrocatalytic reactions. 132 , 133 We have cited the examples of direct (one-step) glucose conversion to adipic acid, or the production of the monomers for PEF polymer synthesis on both sides of the electrocatalytic cell, a greener polymer substituting PET (polyethylene terephthalate), one of the largest in market volume polymers in current use.…”

Section: Key Directions To Build E -Chemistrymentioning

confidence: 99%

“…Exploiting the new possibilities offered from the electrocatalytic conversion of biomethane, which has been at large unexplored up to now. 130,131 7. Exploring more systematically the many possible new paths, offering also process intensification, given by tandem and/or paired electrocatalytic reactions.…”

Section:  Key Directions To Build An E-chemistrymentioning

confidence: 99%

Catalysis for e-Chemistry: Need and Gaps for a Future De-Fossilized Chemical Production, with Focus on the Role of Complex (Direct) Syntheses by Electrocatalysis

et al. 2022

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The prospects, needs and limits in current approaches in catalysis to accelerate the transition to e -chemistry, where this term indicates a fossil fuel-free chemical production, are discussed. It is suggested that e -chemistry is a necessary element of the transformation to meet the targets of net zero emissions by year 2050 and that this conversion from the current petrochemistry is feasible. However, the acceleration of the development of catalytic technologies based on the use of renewable energy sources (indicated as reactive catalysis) is necessary, evidencing that these are part of a system of changes and thus should be assessed from this perspective. However, it is perceived that the current studies in the area are not properly addressing the needs to develop the catalytic technologies required for e -chemistry, presenting a series of relevant aspects and directions in which research should be focused to develop the framework system transformation necessary to implement e -chemistry.

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Electro-conversion of methane to alcohols on “capsule-like” binary metal oxide catalysts

Cited by 31 publications

References 51 publications

Catalytically Influential Features in Transition Metal Oxides

Catalytically Influential Features in Transition Metal Oxides

Solar Cell-Powered Electrochemical Methane-to-Methanol Conversion with CuO/CeO₂ Catalysts

Catalysis for e-Chemistry: Need and Gaps for a Future De-Fossilized Chemical Production, with Focus on the Role of Complex (Direct) Syntheses by Electrocatalysis

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Electro-conversion of methane to alcohols on “capsule-like” binary metal oxide catalysts

Cited by 31 publications

References 51 publications

Catalytically Influential Features in Transition Metal Oxides

Catalytically Influential Features in Transition Metal Oxides

Solar Cell-Powered Electrochemical Methane-to-Methanol Conversion with CuO/CeO2 Catalysts

Catalysis for e-Chemistry: Need and Gaps for a Future De-Fossilized Chemical Production, with Focus on the Role of Complex (Direct) Syntheses by Electrocatalysis

Contact Info

Product

Resources

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Solar Cell-Powered Electrochemical Methane-to-Methanol Conversion with CuO/CeO₂ Catalysts