In situ high‐temperature Raman scattering study of monoclinic Ag2Mo2O7 microrods

Ferreira, A.N.C.; Ferreira, W.C.; Duarte, A.V.; Santos, C.C.; Freire, Paulo; Luz-Lima, C.; Moura, João Victor Barbosa

doi:10.1016/j.saa.2023.122632

Cited by 3 publications

(1 citation statement)

References 36 publications

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“…[30] Ag 2 Mo 2 O 7 has important applications in photodegradation of organic pollutants, [31] ceramics, [32,33] and Raman scattering. [34] However, due to its low photogenerated carrier separation efficiency and small photoresponse range, Ag 2 Mo 2 O 7 is not widely applied in the category of photocatalytic hydrogen-producing. In 2022, Xu et al constructed the ZnS/Ag 2 Mo 2 O 7 S heterojunction by electrostatic adsorption.…”

Section: Doi: 101002/solr202301006mentioning

confidence: 99%

Graphdiyne/Ag₂Mo₂O₇ S‐Scheme Heterojunction for Photocatalytic Hydrogen Production Promoted with Efficient Photogenerated Carriers Separation

Xu,

Li,

Shang

et al. 2024

Solar RRL

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: Inhibiting the recombination of photoexcited hole‐electron pairs is the crucial for efficient hydrogen‐producing by photocatalytic water splitting under visible light. Although Ag2Mo2O7 has excellent photoelectrochemical properties and strong morphological plasticity, its hydrogen‐producing activity is inhibited due to its low separation efficiency of photogenerated carriers and small photoresponse range. Therefore, we prepared GDY (graphdiyne) using alkynyl anions and compounded GDY with Ag2Mo2O7 by electrostatic self‐assembly. The hydrogen‐producing capacity of the composite catalyst GDY/Ag2Mo2O7 reached up to 8156.6 μmol·g‐1·h‐1, what’s more, the photocatalytic hydrogen‐producing capacity of Ag2Mo2O7, GDY and GDY/Ag2Mo2O7 were investigated by in‐situ XPS, electrochemical testing, fluorescence analysis and DFT calculation. The consequences display that the addition of GDY increases the visible light absorption intensity of Ag2Mo2O7, and the composite catalyst GDY/Ag2Mo2O7 shows the best fluorescence quenching effect and the highest photocurrent response intensity. In the final analysis, the preeminent photocatalytic hydrogen‐producing performance of the composition GDY/Ag2Mo2O7 is due to the establishment of type S heterojunction, the migration rate of photogenerated electrons is increased and the migration path is shortened, consequently plentiful electrons is involved in the hydrogen‐producing reaction therewith increase the amount of hydrogen‐producing of the catalyst. This contributes a practical tactics to effectively enhance the capacity of photocatalytic hydrogen‐producing by solving the problem of serious recombination of photogenerated carriers.This article is protected by copyright. All rights reserved.

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Section: Doi: 101002/solr202301006mentioning

confidence: 99%

Graphdiyne/Ag₂Mo₂O₇ S‐Scheme Heterojunction for Photocatalytic Hydrogen Production Promoted with Efficient Photogenerated Carriers Separation

Xu,

Li,

Shang

et al. 2024

Solar RRL

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Self-lubrication of high-entropy carbide matrix composites over a wide temperature range: The synergistic effect of silver and molybdenum component

Zhu,

Chen,

Bian

et al. 2024

Wear

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Unveiling the pressure-induced scheelite to M′-fergusonite phase transition in NaCe(MoO4)2

Ferreira,

Alabarse,

Luz-Lima

et al. 2024

Applied Physics Letters

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Sodium-cerium molybdate, NaCe(MoO4)2, belongs to the family of double alkaline rare-earth molybdate, and it holds significant importance across various technological domains, such as environmental remediation and energy conversion. Despite its importance, the behavior of NaCe(MoO4)2 under high-pressure conditions remains unexplored. This study uses synchrotron x-ray diffraction and Raman spectroscopy to investigate NaCe(MoO4)2in situ under high-pressure conditions. We observed a pressure-induced phase transition from the scheelite to the M′-fergusonite structure type on a double molybdate at approximately 10 GPa. These findings contribute to a deeper understanding of the structural stability of NaCe(MoO4)2 and shed light on the broader field of high-pressure studies of double molybdates.

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In situ high‐temperature Raman scattering study of monoclinic Ag2Mo2O7 microrods

Cited by 3 publications

References 36 publications

Graphdiyne/Ag₂Mo₂O₇ S‐Scheme Heterojunction for Photocatalytic Hydrogen Production Promoted with Efficient Photogenerated Carriers Separation

Graphdiyne/Ag₂Mo₂O₇ S‐Scheme Heterojunction for Photocatalytic Hydrogen Production Promoted with Efficient Photogenerated Carriers Separation

Self-lubrication of high-entropy carbide matrix composites over a wide temperature range: The synergistic effect of silver and molybdenum component

Unveiling the pressure-induced scheelite to M′-fergusonite phase transition in NaCe(MoO4)2

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In situ high‐temperature Raman scattering study of monoclinic Ag2Mo2O7 microrods

Cited by 3 publications

References 36 publications

Graphdiyne/Ag2Mo2O7 S‐Scheme Heterojunction for Photocatalytic Hydrogen Production Promoted with Efficient Photogenerated Carriers Separation

Graphdiyne/Ag2Mo2O7 S‐Scheme Heterojunction for Photocatalytic Hydrogen Production Promoted with Efficient Photogenerated Carriers Separation

Self-lubrication of high-entropy carbide matrix composites over a wide temperature range: The synergistic effect of silver and molybdenum component

Unveiling the pressure-induced scheelite to M′-fergusonite phase transition in NaCe(MoO4)2

Contact Info

Product

Resources

About

Graphdiyne/Ag₂Mo₂O₇ S‐Scheme Heterojunction for Photocatalytic Hydrogen Production Promoted with Efficient Photogenerated Carriers Separation

Graphdiyne/Ag₂Mo₂O₇ S‐Scheme Heterojunction for Photocatalytic Hydrogen Production Promoted with Efficient Photogenerated Carriers Separation