Fabrication of UiO-66-NH2/Ce(HCOO)3 heterojunction with enhanced photocatalytic reduction of CO2 to CH4

Yuan, Nicui; Mei, Yuxin; Liu, Yuwei; Xie, Yating; Lin, Baining; Zhou, Yonghua

doi:10.1016/j.jcou.2022.102151

Cited by 15 publications

(6 citation statements)

References 36 publications

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“…And the sharp absorption band at ~776 cm −1 belongs to the stretching vibrations of the Ce−O bond. The samples that have been irradiated for different times exhibit similar FT-IR spectra despite some slight peak shifts, confirming the formation of the same Ce(HCOO) 3 substances [45]. This is in good agreement with the results of the XRD analysis.…”

Section: Resultssupporting

confidence: 87%

Urchin-like Ce(HCOO)3 Synthesized by a Microwave-Assisted Method and Its Application in an Asymmetric Supercapacitor

He,

Wang,

et al. 2024

Molecules

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In this work, a series of urchin-like Ce(HCOO)3 nanoclusters were synthesized via a facile and scalable microwave-assisted method by varying the irradiation time, and the structure–property relationship was investigated. The optimization of the reaction time was performed based on structural characterizations and electrochemical performances, and the Ce(HCOO)3-210 s sample shows a specific capacitance as high as 132 F g−1 at a current density of 1 A g−1. This is due to the optimal mesoporous hierarchical structure and crystallinity that are beneficial to its conductivity, offering abundant Ce3+/Ce4+ active sites and facilitating the transportation of electrolyte ions. Moreover, an asymmetric supercapacitor based on Ce(HCOO)3//AC was fabricated, which delivers a maximum energy density of 14.78 Wh kg−1 and a considerably high power density of 15,168 W kg−1. After 10,000 continuous charge–discharge cycles at 3 A g−1, the ASC device retains 81.3% of its initial specific capacitance. The excellent comprehensive electrochemical performance of this urchin-like Ce(HCOO)3 offers significant promise for practical supercapacitor applications.

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Section: Resultssupporting

confidence: 87%

Urchin-like Ce(HCOO)3 Synthesized by a Microwave-Assisted Method and Its Application in an Asymmetric Supercapacitor

He,

Wang,

et al. 2024

Molecules

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“…[133] Charge recombination is then effectively suppressed, allowing photogenerated electrons to reach the active sites more smoothly. [93] It should be noted that the n-n type semiconductors [94] are also available for type-II heterojunctions, as the critical factor lies in the type of electronhole transfer, not the type of semiconductor. Research has shown that more electrons in the lower frequency region promote the efficient transfer of photogenerated electrons and holes in type-II heterojunctions, which is the key to determining the performance of photocatalysts.…”

Section: Photocatalystmentioning

confidence: 99%

“…Type‐II heterojunctions (Figure 7a) are considered the most effective among traditional heterojunctions, where photogenerated electrons are transferred to semiconductor B (p‐type), while photogenerated holes migrate to semiconductor A (n‐type), resulting in spatial separation of electron‐hole pairs [133] . Charge recombination is then effectively suppressed, allowing photogenerated electrons to reach the active sites more smoothly [93] . It should be noted that the n‐n type semiconductors [94] are also available for type‐II heterojunctions, as the critical factor lies in the type of electron‐hole transfer, not the type of semiconductor.…”

Section: Photocatalysismentioning

confidence: 99%

Electrocatalytic and Photocatalytic CO₂ Methanation: From Reaction Fundamentals to Catalyst Developments

Tian,

Xu,

Gao

et al. 2024

ChemCatChem

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Transitioning from fossil fuels to renewable energy sources is demanded due to the gradual depletion of petroleum oil/gas and the environmental impact of carbon dioxide (CO2) emissions into the atmosphere. Electrocatalytic and photocatalytic CO2 reduction to methane (CH4) using renewable energy sources is crucial for sustainable chemical/fuel production and greenhouse gas reduction. In recent years, extensive research has focused on understanding the fundamental aspects of the two approaches, such as reaction mechanisms and active sites, and exploring/designing novel catalytic materials. This review initially discusses the reaction fundamentals, including performance evaluation indexes, reactors, and mechanisms, to understand the catalytic reactions. Subsequently, various catalyst preparation strategies and characterization methods are summarized, trying to outline the catalyst design principle based on the obtained understanding of the reaction mechanisms. Finally, research challenges and perspectives for future development in this area are discussed and presented. It is expected to provide a comprehensive understanding of the photo/electrocatalytic CO2 methanation, valuable knowledge to novice researchers, and a helpful reference for future research endeavors.

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“…S7a, † when the temperature is reduced to 15 °C, the overall electron consumption rate does not change much compared with that at 25 °C, but the selectivity for CH 4 is improved, which is due to better stability at lower temperatures. 40 In addition, because the higher temperature is not conducive to the stability of the catalyst, the performance of the catalyst is significantly reduced at 60 °C. 40 At pH = 4, the increase of H + concentration is more conducive to the competitive reaction of H 2 production, which obstructs the process of CO 2 reduction (Fig.…”

Section: Catalysis Science and Technology Papermentioning

confidence: 99%

“…40 In addition, because the higher temperature is not conducive to the stability of the catalyst, the performance of the catalyst is significantly reduced at 60 °C. 40 At pH = 4, the increase of H + concentration is more conducive to the competitive reaction of H 2 production, which obstructs the process of CO 2 reduction (Fig. S7b †).…”

Section: Catalysis Science and Technology Papermentioning

confidence: 99%

Construction of a MAPbBr₃/BiFeO₃ Z-scheme heterojunction with enhanced piezo-photocatalytic performance

Zhou,

Fang

et al. 2023

Catal. Sci. Technol.

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Fabrication of UiO-66-NH2/Ce(HCOO)3 heterojunction with enhanced photocatalytic reduction of CO2 to CH4

Cited by 15 publications

References 36 publications

Urchin-like Ce(HCOO)3 Synthesized by a Microwave-Assisted Method and Its Application in an Asymmetric Supercapacitor

Urchin-like Ce(HCOO)3 Synthesized by a Microwave-Assisted Method and Its Application in an Asymmetric Supercapacitor

Electrocatalytic and Photocatalytic CO₂ Methanation: From Reaction Fundamentals to Catalyst Developments

Construction of a MAPbBr₃/BiFeO₃ Z-scheme heterojunction with enhanced piezo-photocatalytic performance

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Fabrication of UiO-66-NH2/Ce(HCOO)3 heterojunction with enhanced photocatalytic reduction of CO2 to CH4

Cited by 15 publications

References 36 publications

Urchin-like Ce(HCOO)3 Synthesized by a Microwave-Assisted Method and Its Application in an Asymmetric Supercapacitor

Urchin-like Ce(HCOO)3 Synthesized by a Microwave-Assisted Method and Its Application in an Asymmetric Supercapacitor

Electrocatalytic and Photocatalytic CO2 Methanation: From Reaction Fundamentals to Catalyst Developments

Construction of a MAPbBr3/BiFeO3 Z-scheme heterojunction with enhanced piezo-photocatalytic performance

Contact Info

Product

Resources

About

Electrocatalytic and Photocatalytic CO₂ Methanation: From Reaction Fundamentals to Catalyst Developments

Construction of a MAPbBr₃/BiFeO₃ Z-scheme heterojunction with enhanced piezo-photocatalytic performance