Integration of Photothermal Effect and Heat Insulation to Efficiently Reduce Reaction Temperature of CO<sub>2</sub> Hydrogenation

Zhang, Wenbo; Wang, Liangbing; Wang, Kaiwen; Khan, Munir Ullah; Wang, Menglin; Li, Hongliang; Zeng, Jie

doi:10.1002/smll.201602583

Cited by 84 publications

(56 citation statements)

References 27 publications

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“…In a work referenced in the previous section of this review (see Section 4.1.3), Zeng et al designed a three-component heterostructure for the photocatalytic hydrogenation of CO 2 based on Pt nanocubes and Au nanocages encapsulated in a zeolitic imidazole framework (ZIF). 36 In this system, Pt nanocubes acted as catalytic sites facilitating CO 2 reduction, while plasmonic Au nanocages effectively transformed light into heat. Particularly, ZIF served as a thermal insulator preventing heat dissipation, thus confining heat inside the structure and enhancing the catalytic activity of Pt nanocubes.…”

Section: Hybrid Materialsmentioning

confidence: 99%

Fundamentals and applications of photo-thermal catalysis

et al. 2021

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Section: Hybrid Materialsmentioning

confidence: 99%

Fundamentals and applications of photo-thermal catalysis

et al. 2021

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“…In order to reduce the reaction temperature for CO 2 reduction, Zeng et al inspired by the light‐to‐heat conversion for nanostructures, and encapsulated Pt nanocubes and Au nanocages into a zeolitic imidazolate framework (ZIF‐8), Au&Pt@ZIF . The heat generated by the relaxation of excited plasmonic NPs could significantly contribute to the enhancement of CO 2 hydrogenation ( Figure 7 a–c).…”

Section: Mofs‐based Materials For Co2 Reductionmentioning

confidence: 99%

“…b) TEM of Au&Pt@ZIF. c) Comparison of product yields over Pt nanocubes, Pt@ZIF, Au&Pt@ZIF, and Pt@ZIF+Au with/without light irradiation at 100 and 150 °C for 3 h. Reproduced with permission . Copyright 2016, John Wiley and Sons.…”

Section: Mofs‐based Materials For Co2 Reductionmentioning

confidence: 99%

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MOFs‐Based Heterogeneous Catalysts: New Opportunities for Energy‐Related CO₂ Conversion

Lei

Xue

Chen

et al. 2018

Advanced Energy Materials

178

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www.advancedsciencenews.comreaction is more unfavorable. [22,23] Comparing to the researches on artificial H 2 production, the knowledge referring to efficient and selective reduction of CO 2 to energy-rich molecules is urgent to be updated. CO 2 conversion is often traced back to 1972 that reported by Honda and Fujishima with using inorganic photocatalysts TiO 2 . [24] As the capture of CO 2 has already been studied in metal-organic frameworks (MOFs), [25][26][27][28] it has recently been studied for their use as catalysts for the reduction of CO 2 into high-value chemicals. [14,29] MOFs hold great promise for applications in the field of CO 2 reduction, which can act directly as the catalysts or as components to promote CO 2 reduction in a hybrid catalytic system. The interior of MOFs can be designed to have open metal sites, specific heteroatoms, functionalized organic ligand, other building unit interactions, hydrophobicity, defects, porosity, and embedded nanoscale metal catalysts which is crucial for the development of better CO 2 reduction performance MOFs. [30][31][32] Due to the poor electron conductivity of MOFs, [33,34] and the inaccessibility of all the catalytic active sites to the reactants, the stability of MOFs in water and under UV light irradiation need to be further improved. We believe that a comprehensive and up-to-date review summarizing the recent applications of MOFs for CO 2 reduction will contribute to improve theoretical understanding of this field. In order to make a better achievement, it is necessary to use the MOF to build more complex materials to address CO 2 capacity and reduction ability together in one material. Future MOFs materials for CO 2 reduction should be economical and environmental friendly. The keys for promoting catalysis include structural defects in the MOFs, open metal sites from metal clusters, Lewis acid sites from the metal cluster and organometallic linker, and cocatalyst functionalized MOFs.Several reviews focusing on MOFs for CO 2 conversion have been recently reviewed and discussed. Dhakshinamoorthy et al. pointed out that photoexcitation of the light absorbing units in MOFs often generates a ligand-to-metal charge-separation state that can result in photocatalytic activity. Maina et al. discussed the corelationship between the properties of MOF materials including their CO 2 reduction catalytic performance under different reaction conditions. Li and co-workers have summarized the recent applications of MOFs for photocatalytic CO 2 reduction, in which MOFs can act as the photocatalysts for CO 2 reduction or as components in a hybrid photocatalytic system to promote CO 2 reduction. Yaghi and co-workers also pointed out that the challenge in developing catalysts for CO 2 photo-or electroreduction is rooted in the interplay between selectivity, activity, and efficiency. [35][36][37][38] Synthetic Approaches for MOFsMOFs, also called porous coordination polymers, are extended framework with open structures constructed from metal ions and organic ligands linked...

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“…Photothermal catalysis, a combination of photoexcitation with thermal energy to trigger chemical reactions, allows significant improvements in activity and selectivity of catalytic reactions as well as stability of the catalysts [1,7,8]. Therefore, light irradiation has been utilized to promote diverse thermal catalytic reactions such as CO oxidation [9], propylene oxidation [10], Fischer-Tropsch Synthesis [11], reverse water gas shift (RWGS) reaction [12] and CO2 hydrogenation [13]. Light irradiation can significantly improve the performance during these reactions.…”

Section: Introductionmentioning

confidence: 99%

Visible light-enhanced photothermal CO2 hydrogenation over Pt/Al2O3 catalyst

Zhao

Doronkin

et al. 2020

Chinese Journal of Catalysis

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Visible light illumination has been widely applied to promote activity, selectivity and stability of traditional thermal catalysts. Nevertheless, the role of light irradiation during catalytic reactions is not well understood. In this work, Pt/TiO2 and Pt/Al2O3 prepared by wet impregnation were used for photothermal CO2 hydrogenation. They showed a similar photothermal effect. Hence, operando diffuse reflectance infrared Fourier-transform spectroscopy (DRIFTS) and density functional theory (DFT) calculations were conducted on Pt/Al2O3 to reveal more insight into the mechanism. The results indicated that CO desorption from Pt sites including step sites (Ptstep) or/and terrace site (Ptterrace) is an important step during CO2 hydrogenation to free the active Pt sites. Notably, light illumination and temperature affected CO desorption in different ways. The calculated adsorption energy of CO on Ptstep and Ptterrace sites was-1.24 and-1.43 eV, respectively. Hence, CO is stronger bound to Ptstep sites. During heating process in the dark, CO preferentially desorbs from Ptterrace site. However, the additional light irradiation facilitates transfer of CO from Ptstep to Ptterrace sites and its subsequent desorption from the Ptterrace sites, thus promoting CO2 hydrogenation. This work provides further understanding of photothermal catalysis as a mechanism of promotion of the thermal reaction.

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Integration of Photothermal Effect and Heat Insulation to Efficiently Reduce Reaction Temperature of CO₂ Hydrogenation

Cited by 84 publications

References 27 publications

Fundamentals and applications of photo-thermal catalysis

Fundamentals and applications of photo-thermal catalysis

MOFs‐Based Heterogeneous Catalysts: New Opportunities for Energy‐Related CO₂ Conversion

Visible light-enhanced photothermal CO2 hydrogenation over Pt/Al2O3 catalyst

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Integration of Photothermal Effect and Heat Insulation to Efficiently Reduce Reaction Temperature of CO2 Hydrogenation

Cited by 84 publications

References 27 publications

Fundamentals and applications of photo-thermal catalysis

Fundamentals and applications of photo-thermal catalysis

MOFs‐Based Heterogeneous Catalysts: New Opportunities for Energy‐Related CO2 Conversion

Visible light-enhanced photothermal CO2 hydrogenation over Pt/Al2O3 catalyst

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Integration of Photothermal Effect and Heat Insulation to Efficiently Reduce Reaction Temperature of CO₂ Hydrogenation

MOFs‐Based Heterogeneous Catalysts: New Opportunities for Energy‐Related CO₂ Conversion