Tuning Ni-catalyzed CO2 hydrogenation selectivity via Ni-ceria support interactions and Ni-Fe bimetallic formation

Winter, Lea R.; Gomez, Elaine; Yan, Binhang; Yao, Siyu; Chen, Jingguang G.

doi:10.1016/j.apcatb.2017.10.036

Cited by 157 publications

(113 citation statements)

References 49 publications

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“…Some of the most likely CO2 hydrogenation mechanisms indicate that CO2 is first hydrogenated to CO, which is then further reduced to CH4. 36,91,133 In this context, CO is not expected to be further hydrogenated to CH4 for our catalytic system which could explain the found high CO selectivity. Figure 16d and 16e display the Zn LMM Auger spectra for the tested samples.…”

Section: Co/zno and Ni/zno Catalysts For Co2 Hydrogenationmentioning

confidence: 93%

“…Methanol synthesis represents one of the most desirable option for CO2 utilization, as it generates a liquid feedstock that is excepicionally convenient for producing olefins and fuels. 35,36 However, its impact alone on global reduction of CO2 emissions is not quite significant (its CO2 consumption is limited to lower than 0.1%). 36,37 Aside from methanol, reverse water gas shift (RWGS) and CO2 methanation reactions can generate other chemicals such as carbon monoxide (CO) and methane (CH4), respectively, which are important building blocks for a wide range of commodities.…”

Section: Hydrogenation Of Carbon Dioxide (Co2)mentioning

confidence: 99%

“…35,36 However, its impact alone on global reduction of CO2 emissions is not quite significant (its CO2 consumption is limited to lower than 0.1%). 36,37 Aside from methanol, reverse water gas shift (RWGS) and CO2 methanation reactions can generate other chemicals such as carbon monoxide (CO) and methane (CH4), respectively, which are important building blocks for a wide range of commodities. 36,38,39 For instance, a variety of products such as olefins, gasoline, and diesel, as well as oxygenates (e.g.…”

Section: Hydrogenation Of Carbon Dioxide (Co2)mentioning

confidence: 99%

“…36,37 Aside from methanol, reverse water gas shift (RWGS) and CO2 methanation reactions can generate other chemicals such as carbon monoxide (CO) and methane (CH4), respectively, which are important building blocks for a wide range of commodities. 36,38,39 For instance, a variety of products such as olefins, gasoline, and diesel, as well as oxygenates (e.g. methanol) can be obtained from syngas (CO + H2) using the well-established technology of Fischer−Tropsch synthesis (FTS).…”

Section: Hydrogenation Of Carbon Dioxide (Co2)mentioning

confidence: 99%

“…This result is quite unexpected since many reports have shown that Ni is a high active and selective CO2 methanation metal catalyst. 36,89,117,118 Although there have been reports showing that Ni supported catalysts with high selectivity towards CO can be obtained by alloying Ni with other metals such as iron (Fe) or even by using Ni nanoparticles smaller than 2nm, these results cannot be properly compared to our catalyst system. 36,38,119 This is because our prepared NiO nanoparticles are about 10nm in diameter and, at least in principle, no alloying process on Ni was 54 utilized.…”

Section: Co/zno and Ni/zno Catalysts For Co2 Hydrogenationmentioning

confidence: 99%

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Catalysts based on transition metals for applications in energy conversion

Araújo¹

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Energy conversion processes such as the water splitting and CO2 hydrogenation reactions have emerged as attractive approaches to mitigate environmental concerns on CO2 emissions as well as to provide an alternative source of renewable fuels. These strategic processes can capitalize on the energy of renewable resources (e.g solar and wind) to drive chemical reactions to generate, in a green and sustainable way, fuels and value-added chemicals. Economically feaseable heterogeneous catalysts play a central role in advancing such processes for globally-relevant production scales. Hence, in this work, we focused on the synthetic development of several catalyst systems based on cost-effective earth-abudant 3d transition metals such as nickel (Ni), cobalt (Co), iron (Fe) and zinc (Zn). Specifically, we turned our attention to produce a series of catalysts comprised of: i) NiFe oxyhydroxide supported on carbon for application in oxygen evolution reaction (OER), a bottleneck reaction for the water splitting process, and ii) Ni and Co nanoparticles supported on Zinc oxide (ZnO) for the CO2 hydrogenation reaction. Regarding the NiFe oxyhydroxide systems, we evaluated the catalytic performance of these materials towards the OER and benchmarked those with that of state-of-the-art OER electrocatalyts such as Ir/C. In addition to that, we also focused on rationalizing the key reasons for the significant enhancements in OER activity of such catalysts in terms of their surface and bulk compositions. For Co/ZnO and Ni/ZnO catalysts, aside from assessing their catalytic activity and selectivity behavior, we performed a systematic investigation of the catalytically important properties of such catalyst interfaces under typical CO2 hydrogenation reaction conditions using in situ ambient pressure X-ray photoelectron spectroscopy (AP-XPS). This allowed us to acquire important knowledge into the origin and the nature of the active sites associated with the catalytic activity and selectivity in these materials.

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Section: Co/zno and Ni/zno Catalysts For Co2 Hydrogenationmentioning

confidence: 93%

Section: Hydrogenation Of Carbon Dioxide (Co2)mentioning

confidence: 99%

Section: Hydrogenation Of Carbon Dioxide (Co2)mentioning

confidence: 99%

Section: Hydrogenation Of Carbon Dioxide (Co2)mentioning

confidence: 99%

Section: Co/zno and Ni/zno Catalysts For Co2 Hydrogenationmentioning

confidence: 99%

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Catalysts based on transition metals for applications in energy conversion

Araújo¹

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Survey of Heterogeneous Catalysts for the CO ₂ Reduction to CO via Reverse Water Gas Shift

Mathew

Saju

Raveendran

2021

Engineering Solutions for CO2 Conversion

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Protonic Ceramic Electrochemical Cells for Synthesizing Sustainable Chemicals and Fuels

2023

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Protonic ceramic electrochemical cells (PCECs) have been intensively studied as the technology that can be employed for power generation, energy storage, and sustainable chemical synthesis. Recently, there have been substantial advances in electrolyte and electrode materials for improving the performance of protonic ceramic fuel cells and protonic ceramic electrolyzers. However, the electrocatalytic materials development for synthesizing chemicals in PCECs has gained less attention, and there is a lack of systematic and fundamental understanding of the PCEC reactor design, reaction mechanisms, and electrode materials. This review comprehensively summarizes and critically evaluates the most up‐to‐date progress in employing PCECs to synthesize a wide range of chemicals, including ammonia, carbon monoxide, methane, light olefins, and aromatics. Factors that impact the conversion, selectivity, product yield, and energy efficiencies are discussed to provide new insights into designing electrochemical cells, developing electrode materials, and achieving economically viable chemical synthesis. The primary challenges associated with producing chemicals in PCECs are highlighted. Approaches to tackle these challenges are then offered, with a particular focus on deliberately designing electrode materials, aiming to achieve practically valuable product yield and energy efficiency. Finally, perspectives on the future development of PCECs for synthesizing sustainable chemicals are provided.

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Tuning Ni-catalyzed CO2 hydrogenation selectivity via Ni-ceria support interactions and Ni-Fe bimetallic formation

Cited by 157 publications

References 49 publications

Catalysts based on transition metals for applications in energy conversion

Catalysts based on transition metals for applications in energy conversion

Survey of Heterogeneous Catalysts for the CO ₂ Reduction to CO via Reverse Water Gas Shift

Protonic Ceramic Electrochemical Cells for Synthesizing Sustainable Chemicals and Fuels

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Tuning Ni-catalyzed CO2 hydrogenation selectivity via Ni-ceria support interactions and Ni-Fe bimetallic formation

Cited by 157 publications

References 49 publications

Catalysts based on transition metals for applications in energy conversion

Catalysts based on transition metals for applications in energy conversion

Survey of Heterogeneous Catalysts for the CO 2 Reduction to CO via Reverse Water Gas Shift

Protonic Ceramic Electrochemical Cells for Synthesizing Sustainable Chemicals and Fuels

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Product

Resources

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Survey of Heterogeneous Catalysts for the CO ₂ Reduction to CO via Reverse Water Gas Shift