A review of the preparation and photocatalytic hydrogen evolution of core–shell Cu<sub>2</sub>O composites

Zhu, Mengyuan; Zhang, Feng-Jun; Wang, Yingrui

doi:10.1039/d2nj02633c

“…Cu 2 MoS 4 and ZnIn 2 S 4 were prepared by the solvent heat method, and square platform Cu 2 MoS 4 was prepared using Cu 2 O as the copper source, 31,32 as shown in Fig. 2a and b.…”

Section: Morphological and Structural Characterizationmentioning

confidence: 99%

Preparation and photocatalytic hydrogen evolution performance of square platform Cu₂MoS₄/lamellar ZnIn₂S₄

Zhu

¹

,

Zhang

²

,

Wang

³

et al. 2023

React. Chem. Eng.

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Edge‐Rich Pt−O−Ce Sites in CeO₂ Supported Patchy Atomic‐Layer Pt Enable a Non‐CO Pathway for Efficient Methanol Oxidation

Xu,

Liu,

Liu

et al. 2024

Angewandte Chemie

0

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Rational design of efficient methanol oxidation reaction (MOR) catalyst that undergo non‐CO pathway is essential to resolve the long‐standing poisoning issue. However, it remains a huge challenge due to the rather difficulty in maximizing the non‐CO pathway by the selective coupling between the key *CHO and *OH intermediates. Here, we report a high‐performance electrocatalyst of patchy atomic‐layer Pt epitaxial growth on CeO2 nanocube (Pt ALs/CeO2) with maximum electron‐metal support interactions for enhancing the coupling selectively. The small‐size monolayer material achieves an optimal geometrical distance between edge Pt‐O‐Ce sites and *OH absorbed on CeO2, which well restrains the dehydrogenation of *CHO, resulting in the non‐CO pathway. Meanwhile, the *CHO/*CO intermediate generated at inner Pt‐O‐Ce sites can migrate to edge, inducing the subsequent coupling reaction, thus avoiding poisoning while promoting reaction efficiency. Consequently, Pt ALs/CeO2 exhibits exceptionally catalytic stability with negligible degradation even under 1000 s pure CO poisoning operation and high mass activity (14.87 A/mgPt), enabling it one of the best‐performing alkali‐stable MOR catalysts.

show abstract

Edge‐Rich Pt−O−Ce Sites in CeO₂ Supported Patchy Atomic‐Layer Pt Enable a Non‐CO Pathway for Efficient Methanol Oxidation

Xu,

Liu,

Liu

et al. 2024

Angew Chem Int Ed

2

0

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Rational design of efficient methanol oxidation reaction (MOR) catalyst that undergo non‐CO pathway is essential to resolve the long‐standing poisoning issue. However, it remains a huge challenge due to the rather difficulty in maximizing the non‐CO pathway by the selective coupling between the key *CHO and *OH intermediates. Here, we report a high‐performance electrocatalyst of patchy atomic‐layer Pt epitaxial growth on CeO2 nanocube (Pt ALs/CeO2) with maximum electron‐metal support interactions for enhancing the coupling selectively. The small‐size monolayer material achieves an optimal geometrical distance between edge Pt‐O‐Ce sites and *OH absorbed on CeO2, which well restrains the dehydrogenation of *CHO, resulting in the non‐CO pathway. Meanwhile, the *CHO/*CO intermediate generated at inner Pt‐O‐Ce sites can migrate to edge, inducing the subsequent coupling reaction, thus avoiding poisoning while promoting reaction efficiency. Consequently, Pt ALs/CeO2 exhibits exceptionally catalytic stability with negligible degradation even under 1000 s pure CO poisoning operation and high mass activity (14.87 A/mgPt), enabling it one of the best‐performing alkali‐stable MOR catalysts.

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A review of the preparation and photocatalytic hydrogen evolution of core–shell Cu₂O composites

Abstract: Abstract:Due to the appropriate bandgap, Cu2O has been widely studied in the field of photocatalytic hydrogen evolution. The core-shell structure is used to design the photocatalytic semiconductor material, so that...

Cited by 8 publications

References 93 publications

Preparation and photocatalytic hydrogen evolution performance of square platform Cu₂MoS₄/lamellar ZnIn₂S₄

Preparation and photocatalytic hydrogen evolution performance of square platform Cu₂MoS₄/lamellar ZnIn₂S₄

Edge‐Rich Pt−O−Ce Sites in CeO₂ Supported Patchy Atomic‐Layer Pt Enable a Non‐CO Pathway for Efficient Methanol Oxidation

Edge‐Rich Pt−O−Ce Sites in CeO₂ Supported Patchy Atomic‐Layer Pt Enable a Non‐CO Pathway for Efficient Methanol Oxidation

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A review of the preparation and photocatalytic hydrogen evolution of core–shell Cu2O composites

Abstract: Abstract:Due to the appropriate bandgap, Cu2O has been widely studied in the field of photocatalytic hydrogen evolution. The core-shell structure is used to design the photocatalytic semiconductor material, so that...

Cited by 8 publications

References 93 publications

Preparation and photocatalytic hydrogen evolution performance of square platform Cu2MoS4/lamellar ZnIn2S4

Preparation and photocatalytic hydrogen evolution performance of square platform Cu2MoS4/lamellar ZnIn2S4

Edge‐Rich Pt−O−Ce Sites in CeO2 Supported Patchy Atomic‐Layer Pt Enable a Non‐CO Pathway for Efficient Methanol Oxidation

Edge‐Rich Pt−O−Ce Sites in CeO2 Supported Patchy Atomic‐Layer Pt Enable a Non‐CO Pathway for Efficient Methanol Oxidation

Contact Info

Product

Resources

About

A review of the preparation and photocatalytic hydrogen evolution of core–shell Cu₂O composites

Preparation and photocatalytic hydrogen evolution performance of square platform Cu₂MoS₄/lamellar ZnIn₂S₄

Preparation and photocatalytic hydrogen evolution performance of square platform Cu₂MoS₄/lamellar ZnIn₂S₄

Edge‐Rich Pt−O−Ce Sites in CeO₂ Supported Patchy Atomic‐Layer Pt Enable a Non‐CO Pathway for Efficient Methanol Oxidation

Edge‐Rich Pt−O−Ce Sites in CeO₂ Supported Patchy Atomic‐Layer Pt Enable a Non‐CO Pathway for Efficient Methanol Oxidation