Facile synthesis of α-Zn2V2O7 and its catalytic role for the photo mediated conversion of benzyl alcohol

Shrivastava, Vipul; Nagarajan, Rajamani

doi:10.1016/j.matlet.2020.128559

Cited by 10 publications

(5 citation statements)

References 16 publications

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“…The peak at 282 cm –1 corresponds to the V 3 O stretching vibration mode . The bands at 902, 952, and 992 cm –1 are assigned to the VO 4 stretching vibrational mode . These spectral features are consistent with the reported spinel ZnV 2 O 4 …”

Section: Resultssupporting

confidence: 88%

“…43 The bands at 902, 952, and 992 cm −1 are assigned to the VO 4 stretching vibrational mode. 41 These spectral features are consistent with the reported spinel ZnV 2 O 4 . 40 Figure 2a shows the GCD tests of ZnV 2 O 4 in various potential windows recorded at 2 A g −1 .…”

Section: Electrochemical Measurementsupporting

confidence: 90%

“…Several Raman active bands can be observed in the Raman spectrum of ZnV 2 O 4 (Figure b). The predominant peak at 141 cm –1 is associated with the V–O–V–O bending, which has been found in various vanadium oxides such as ZnV 2 O 4 , ZnV 2 O 7 , V 2 O 5 , V 6 O 13 , and V 3 O 7 . − The peaks at 196, 242, 370, 408, and 694 cm –1 are attributed to the Zn–O vibration, while the bands at 792 and 852 cm –1 are related to the V–O vibration . The peak at 282 cm –1 corresponds to the V 3 O stretching vibration mode .…”

Section: Resultsmentioning

confidence: 94%

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Activating ZnV₂O₄by an Electrochemical Oxidation Strategy for Enhanced Energy Storage in Zinc-Ion Batteries

Liu

et al. 2022

ACS Appl. Energy Mater.

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Rechargeable aqueous zinc-ion batteries (RAZIBs) are recognized as promising energy storage systems to meet the ever-growing demand for grid-scale applications. Developing reliable cathode materials with superior electrochemical performance plays a decisive role in this field. In this work, an electrochemical oxidation strategy is employed to successfully activate the electrochemical activity of ZnV 2 O 4 spinel oxide. Operating at high potentials up to 2.0 V enables the capacity activation process efficiently, in which the specific capacity increases from 86 to 232 mAh g −1 (corresponding to 170% capacity enhancement) after 50 cycles at 2 A g −1 . On the contrary, ZnV 2 O 4 operating in the potential window of 0.4−1.6 V only delivers 87 mAh g −1 after 50 cycles, whereas negligible capacity (<3 mAh g −1 ) is obtained in the case of 0.4−1.3 V. As characterized by X-ray diffraction (XRD), Raman microscopy, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and in situ pH measurements, the underlying mechanism is unraveled as a hydrolysis reaction coupled with the dissolution−recrystallization process, leading to the formation of high-valent Zn 0.06 V 2 O 5 •1.07H 2 O with a localized layered structure. The activated cathode demonstrates facilitated ion transport kinetics, reduced charge transfer resistance, and high electrochemical reversibility in RAZIBs. Benefiting from these features, stable cycle stability is achieved, that is, a reversible capacity of 138 mAh g −1 (83% capacity retention) can be retained after 2000 cycles at 4 A g −1 . This work sheds light on activating low-valent vanadium-based oxides for practical application in RAZIBs, opening an avenue for developing cathode materials for aqueous batteries.

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Section: Resultssupporting

confidence: 88%

Section: Electrochemical Measurementsupporting

confidence: 90%

Section: Resultsmentioning

confidence: 94%

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Activating ZnV₂O₄by an Electrochemical Oxidation Strategy for Enhanced Energy Storage in Zinc-Ion Batteries

Liu

et al. 2022

ACS Appl. Energy Mater.

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“…Zn 2 V 2 O 7 delivers polymorphism crystallizing in α ‐ ( C2/c space group) and β ‐ ( C2/m space group) forms. [ 307 , 308 ] Among them, α ‐Zn 2 V 2 O 7 is a promising yellow phosphor and an important component of transition‐metal vanadates with layered crystal structure. [ 309 ] Sambandam and colleagues [ 310 ] developed an AZIBs using 1D Zn 2 V 2 O 7 nanowires, prepared by a simple one‐step hydrothermal method, as the potential (de)intercalation host.…”

Section: Vanadatesmentioning

confidence: 99%

“…Zn 2 V 2 O 7 : Zn 2 V 2 O 7 delivers polymorphism crystallizing in 𝛼-(C2/c space group) and 𝛽-(C2/m space group) forms. [307,308] Among them, 𝛼-Zn 2 V 2 O 7 is a promising yellow phosphor and an [299] Copyright 2019, Elsevier. e-i) Reproduced with permission.…”

Section: The Intercalation Of Zn 2+mentioning

confidence: 99%

How About Vanadium‐Based Compounds as Cathode Materials for Aqueous Zinc Ion Batteries?

et al. 2023

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Aqueous zinc‐ion batteries (AZIBs) stand out among many monovalent/multivalent metal‐ion batteries as promising new energy storage devices because of their good safety, low cost, and environmental friendliness. Nevertheless, there are still many great challenges to exploring new‐type cathode materials that are suitable for Zn2+ intercalation. Vanadium‐based compounds with various structures, large layer spacing, and different oxidation states are considered suitable cathode candidates for AZIBs. Herein, the research advances in vanadium‐based compounds in recent years are systematically reviewed. The preparation methods, crystal structures, electrochemical performances, and energy storage mechanisms of vanadium‐based compounds (e.g., vanadium phosphates, vanadium oxides, vanadates, vanadium sulfides, and vanadium nitrides) are mainly introduced. Finally, the limitations and development prospects of vanadium‐based compounds are pointed out. Vanadium‐based compounds as cathode materials for AZIBs are hoped to flourish in the coming years and attract more and more researchers' attention.

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Thortveitite phase manganese vanadate (Mn2V2O7) for the removal of model organic pollutants

Jayaraman

Ganesan

Mani

et al. 2023

Korean J. Chem. Eng.

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Facile synthesis of α-Zn2V2O7 and its catalytic role for the photo mediated conversion of benzyl alcohol

Cited by 10 publications

References 16 publications

Activating ZnV₂O₄by an Electrochemical Oxidation Strategy for Enhanced Energy Storage in Zinc-Ion Batteries

Activating ZnV₂O₄by an Electrochemical Oxidation Strategy for Enhanced Energy Storage in Zinc-Ion Batteries

How About Vanadium‐Based Compounds as Cathode Materials for Aqueous Zinc Ion Batteries?

Thortveitite phase manganese vanadate (Mn2V2O7) for the removal of model organic pollutants

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Facile synthesis of α-Zn2V2O7 and its catalytic role for the photo mediated conversion of benzyl alcohol

Cited by 10 publications

References 16 publications

Activating ZnV2O4by an Electrochemical Oxidation Strategy for Enhanced Energy Storage in Zinc-Ion Batteries

Activating ZnV2O4by an Electrochemical Oxidation Strategy for Enhanced Energy Storage in Zinc-Ion Batteries

How About Vanadium‐Based Compounds as Cathode Materials for Aqueous Zinc Ion Batteries?

Thortveitite phase manganese vanadate (Mn2V2O7) for the removal of model organic pollutants

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Activating ZnV₂O₄by an Electrochemical Oxidation Strategy for Enhanced Energy Storage in Zinc-Ion Batteries

Activating ZnV₂O₄by an Electrochemical Oxidation Strategy for Enhanced Energy Storage in Zinc-Ion Batteries