Enhanced dry reforming of CO2 and CH4 on photothermal catalyst Ru/SrTiO3

Tang, Ying; Li, Yangyang; Bao, Wentao; Yan, Wenxia; Zhang, Jie; Huang, Yifan; Li, Han; Wang, Zijun; Liu, Minmin; Ye, Feng

doi:10.1016/j.apcatb.2023.123054

Cited by 28 publications

(15 citation statements)

References 47 publications

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“…These indicate that the photoexcited energetic electrons generated from the conduction band of SrTiO 3 can transfer to the adjacent HEA NPs (see also Figure S22). , Therefore, it can be reasonably inferred that HEA NPs act as electron capture centers with high electron density, promoting the activation of CO 2 and thus enhancing the catalytic properties. Taken together, the light-driven DRM process over HEA/SrTiO 3 involves a synergy of photocatalysis and photothermal catalysis .…”

Section: Resultsmentioning

confidence: 99%

“…Herein, we design HEAs on SrTiO 3 as a highly efficient and coke-resistant catalyst for light-driven DRM without a secondary source of heating, involving a new carbon exchange process (Figure b). In our design, Ni, Rh, Pd, and Ru are explored as the main active metals for CH 4 activation given their previously demonstrated potential for C–H cleavage. ,, SrTiO 3 with moderate alkaline sites is screened as the support to facilitate CO 2 adsorption and activation. ,, HEAs also absorb light in a wide spectrum and act as a “nanoheater” to rapidly elevate the local temperature of the catalyst. Under 4 W cm –2 light irradiation, ultrahigh activity (15.6/16.0 mol g metal –1 h –1 for H 2 /CO production), long-term stability (∼150 h), and remarkable selectivity (∼0.96) are achieved over CoNiRuRhPd loaded on SrTiO 3 (denoted as HEA/SrTiO 3 ).…”

Section: Introductionmentioning

confidence: 99%

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Highly Efficient and Selective Light-Driven Dry Reforming of Methane by a Carbon Exchange Mechanism

Xiong,

Dong,

et al. 2024

J. Am. Chem. Soc.

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Dry reforming of methane (DRM) is a promising technique for converting greenhouse gases (namely, CH 4 and CO 2 ) into syngas. However, traditional thermocatalytic processes require high temperatures and suffer from low selectivity and cokeinduced instability. Here, we report high-entropy alloys loaded on SrTiO 3 as highly efficient and coke-resistant catalysts for lightdriven DRM without a secondary source of heating. This process involves carbon exchange between reactants (i.e., CO 2 and CH 4 ) and oxygen exchange between CO 2 and the lattice oxygen of supports, during which CO and H 2 are gradually produced and released. Such a mechanism deeply suppresses the undesired side reactions such as reverse water−gas shift reaction and methane deep dissociation. Impressively, the optimized CoNiRuRhPd/SrTiO 3 catalyst achieves ultrahigh activity (15.6/16.0 mol g metal −1 h −1 for H 2 /CO production), long-term stability (∼150 h), and remarkable selectivity (∼0.96). This work opens a new avenue for future energy-efficient industrial applications.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Highly Efficient and Selective Light-Driven Dry Reforming of Methane by a Carbon Exchange Mechanism

Xiong,

Dong,

et al. 2024

J. Am. Chem. Soc.

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“…This suggests that the atomic Ru interface may be a good active site (Figure14a). 119 Thus, the authors optimized the structure of the adsorbed substance to achieve the smallest energy position by placing the adsorbed substance near the interface. The activation energy required for methane to dissociate into methyl* and H* is higher under normal conditions (Figure 14b).…”

Section: Photocatalytic Co 2 Reduction To Comentioning

confidence: 99%

“…The activation energy required for methane to dissociate into methyl* and H* is higher under normal conditions (Figure 14b). 119 Figure 14c shows the H 2 generation pathway in the normal and electronrich states. The electron-rich state of Ru on the catalyst also promotes the formation of H 2 .…”

Section: Photocatalytic Co 2 Reduction To Comentioning

confidence: 99%

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Recent Progress of Studies on Photoconversion and Photothermal Conversion of CO₂ with Single-Atom Catalysts

Yang,

Wang,

Kuwahara

et al. 2024

Chem Bio Eng.

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Catalytic conversion of carbon dioxide (CO 2 ) into useful chemical raw materials or fuels can help achieve the "dual carbon" goals of carbon peaking and carbon neutrality. As a sustainable green energy source, solar energy provides energy for human production and life. In recent years, the reported single-atom catalysts (SACs) have higher atom utilization and better catalytic efficiency than traditional heterogeneous catalysts. In the field of photocatalysis and photothermal synergistic catalysis of CO 2 conversion, single-atom catalysts can reduce the reaction temperature and pressure, improve the catalytic activity, and improve the selectivity of the reaction. In this mini-review, the basic mechanism and classification of CO 2 reduction are introduced, and then the roles and differences of single-atom catalysts in photocatalysis and photothermal catalysis are introduced. In addition, according to the reduction product types, the recent research progress of single-atom catalysts in photoconversion and photothermal CO 2 conversion was reviewed. Finally, the challenges of monoatomic photocatalytic and photothermal CO 2 reduction technologies have prospected. This mini-review hopes to provide an in-depth understanding of the roles of single atoms in photocatalysis and photothermal catalysis and to shed light on the actual production and application of renewable energy. High-performance single-atom catalysts are expected to achieve industrial applications of CO 2 conversion, which will contribute to the early realization of the two-carbon goal.

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Photothermal CO₂ Catalysis toward the Synthesis of Solar Fuel: From Material and Reactor Engineering to Techno‐Economic Analysis

Ding,

Liu,

Zhao

et al. 2024

Advanced Materials

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Carbon dioxide, a member of greenhouse gases, contributes significantly to maintaining a tolerable environment for all living species. However, with the development of modern society and the utilization of fossil fuels, the concentration of atmospheric CO2 has increased to 400 ppm, resulting in a serious greenhouse effect. Thus, converting CO2 into valuable chemicals is highly desired, especially with renewable solar energy, which showed great potential with the manner of photothermal catalysis. In this review, recent advancements in photothermal CO2 conversion are discussed, including the design of catalysts, analysis of mechanisms, engineering of reactors, and the corresponding techno‐economic analysis. A guideline for future investigation and the anthropogenic carbon cycle are provided.This article is protected by copyright. All rights reserved

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Enhanced dry reforming of CO2 and CH4 on photothermal catalyst Ru/SrTiO3

Cited by 28 publications

References 47 publications

Highly Efficient and Selective Light-Driven Dry Reforming of Methane by a Carbon Exchange Mechanism

Highly Efficient and Selective Light-Driven Dry Reforming of Methane by a Carbon Exchange Mechanism

Recent Progress of Studies on Photoconversion and Photothermal Conversion of CO₂ with Single-Atom Catalysts

Photothermal CO₂ Catalysis toward the Synthesis of Solar Fuel: From Material and Reactor Engineering to Techno‐Economic Analysis

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Enhanced dry reforming of CO2 and CH4 on photothermal catalyst Ru/SrTiO3

Cited by 28 publications

References 47 publications

Highly Efficient and Selective Light-Driven Dry Reforming of Methane by a Carbon Exchange Mechanism

Highly Efficient and Selective Light-Driven Dry Reforming of Methane by a Carbon Exchange Mechanism

Recent Progress of Studies on Photoconversion and Photothermal Conversion of CO2 with Single-Atom Catalysts

Photothermal CO2 Catalysis toward the Synthesis of Solar Fuel: From Material and Reactor Engineering to Techno‐Economic Analysis

Contact Info

Product

Resources

About

Recent Progress of Studies on Photoconversion and Photothermal Conversion of CO₂ with Single-Atom Catalysts

Photothermal CO₂ Catalysis toward the Synthesis of Solar Fuel: From Material and Reactor Engineering to Techno‐Economic Analysis