Oxygen vacancy battery

Dual‐Carbon Assisted Oxygen Vacancy ...

Owing to kinetic-sluggish nature of electrocatalytic oxygen transformation processes, it is pivotal to develop durable and efficient bifunctional air electrode catalysts for fabricating …

Energy storage device

A visible light illumination assistant Li-O2 battery based on an oxygen …

TiO 2 is regarded as one of the most stable catalysts for Li-O 2 battery cathodes, however, the inert surface and weak conductivity limit its catalytic ability. In the present work, a visible light assistant electrode-process on an oxygen vacancy doped TiO 2 (TiO 2-δ) catalyst is proposed to promote its performances in Li-O 2 batteries. The TiO 2 …

Energy storage device

Oxygen Vacancy Introduction to Increase the Capacity …

As a result, the oxygen-vacancy-containing lithium-rich manganese oxide delivers a high Mn-based capacity of >300 mAh g −1 with significantly reduced oxygen oxidation. The large Mn-redox reservoir and …

Energy storage device

Self-supporting oxygen vacancy-rich α-MnO

Self-supporting oxygen vacancy-rich α-MnO 2 nanowire/few-layer graphite/SWNT bundle composite film for high-performance flexible aqueous zinc-ion battery cathode. Author links open overlay panel Yuning Sun a, Yuexin Liu a, Zhongqiang Wang b, Xiaoli Zhao a, Kefeng Cai a. Show more.

Energy storage device

Entropy stabilization effect and oxygen vacancy in spinel high …

Take lithium-ion battery as an example, Sarkar et al. synthesized high entropy oxide ... and HEO 0.05. This is because oxygen vacancies can provide more physical space for Na + storage and the introduction of vacancies induces excess electrons around specific metal atoms, which are regarded as negative charge centers to adsorb …

Energy storage device

Oxygen vacancy engineering of vertically aligned NiO nanosheets …

The Li-CO 2 battery with the concept of turning waste into treasure has aroused great scientific research enthusiasm recently, but unfortunately it is a long shot for the large-scale applications of Li-CO 2 battery due to its huge overpotential and poor cycling life at current stage. Herein, NiO nanosheets engineered by oxygen vacancy growing …

Energy storage device

Oxygen vacancies-rich cobalt-doped NiMoO

Oxygen vacancies-rich cobalt-doped NiMoO 4 nanosheets for high energy density and stable aqueous Ni-Zn battery. NiMoO 4 . Articles; Published: 08 April 2020 Volume 63, pages 1205–1215, (2020) ; Cite this article

Energy storage device

Dual‐Carbon Assisted Oxygen Vacancy Engineering for

Download Citation | Dual‐Carbon Assisted Oxygen Vacancy Engineering for Optimizing Mn(III) Sites to Enhance Zn–air Battery Performances | Owing to kinetic‐sluggish nature of electrocatalytic ...

Energy storage device

Visualization of oxygen vacancies and self-doped ligand holes in ...

Direct visualization of oxygen vacancies and self-doped ligand holes reveals the role of ligand oxygen in La3Ni2O7−δ and provides further understanding of superconducting nickelate materials.

Energy storage device

The oxygen vacancy in Li-ion battery cathode materials

Oxygen vacancies (OVs) can promote Li-ion diffusion, reduce the charge transfer resistance, and improve the capacity and rate …

Energy storage device

Trace Water‐induced Morphology Engineering and Oxygen Vacancy …

Bi 2 O 3 is a theoretically high capacitive anode material; however, its low conductivity and deficient surface-active sites lead to reduced practical capability compared to the theoretical one. Herein, a facile and environmentally benign strategy is developed to simultaneously tailor the morphology and create oxygen vacancies in Bi 2 O 3 by …

Energy storage device

Oxygen vacancy modulated Ti2Nb10O29 anodes for high-rate …

Oxygen vacancy introduction leads to the formation of Ti 3+ and Nb 4+ and the optimization of electronic structure, which provide more active sites for ion insertion and accelerate electron transport and migration. The optimized sample (TNO-M) demonstrates excellent high-rate capacity and cyclic stability. ... Lithium-ion battery shows great ...

Energy storage device

Oxygen vacancies in metal oxides: recent progress towards advanced ...

In these metal oxides, oxygen vacancies (OVs) are ubiquitous and intrinsic defects with pronounced impacts on the physicochemical properties of the catalysts, which may open new opportunities for obtaining efficient metal oxides. ... Jin W, Kim SH, et al. Oxygen vacancy diffusion and condensation in lithium-ion battery cathode materials. Angew ...

Energy storage device

Hydrogen Sodium Vanadium Oxide Hydrate with Oxygen Vacancy…

The layered HNaV6O16·4H2O (hydrogen sodium vanadium oxide hydrate) with large interlayer spacing and interlayer H+ has been used as a cathode for the zinc-ion battery. However, it is rarely applied in sodium-ion batteries, and only a report tests its initial discharge capacity of ∼23 mAh g–1 at 50 mAh g–1. In this regard, we first …

Energy storage device

The oxygen vacancy in Li-ion battery cathode materials

Oxygen vacancies (OVs) can promote Li-ion diffusion, reduce the charge transfer resistance, and improve the capacity and rate performance of LiBs. However, OVs can also lead to accelerated degradation of the cathode material structure, and from there, of the battery performance.

Energy storage device

Heterogeneous Interface Design with Oxygen Vacancy-Rich …

5 · Researchers are paying more attention to sodium-ion batteries (SIBs) because of their abundant supply of sodium resources and affordable price. TiO2 offers excellent …

Energy storage device

Oxygen Vacancy-Rich NiCo

Oxygen Vacancy-Rich NiCo 2 O 4 on Carbon Framework with Controlled Pore Architectures as Efficient Bifunctional Electrocatalysts for Zn-Air Batteries. Min Kim, ... (ZABs) are considered one of the most sustainable battery technologies owing to their characteristics such as high theoretical energy density (1086 W h kg −1), ...

Energy storage device

Oxygen Vacancy Diffusion and Condensation in Lithium-Ion Battery …

Oxygen vacancies (OV) are native defects in transition metal (TM) oxides and their presence has a critical effect on the physicochemical properties of the oxide. Metal oxides are commonly used in lithium-ion battery (LIB) cathodes and there is still a lack of understanding of the role of OVs in LIB …

Energy storage device

Persistent and partially mobile oxygen vacancies in Li-rich layered ...

Our work merges an ensemble of length-spanning characterization methods and informs promising approaches to mitigate the deleterious effects of oxygen …

Energy storage device

Oxygen-rich vacancy nickel–cobalt oxide cathode with low …

MOFs were utilized as templates to obtain nanosheet structure. • The enriched oxygen vacancies facilitate boosted diffusion kinetics, and preferable OH − adsorption.. Excellent low temperature adaptability (238.5 mA h g −1 at −25 °C).. A high energy density of 539.08 Wh kg −1 at 1.68 kW kg −1 was realized.. Excellent rate …

Energy storage device

Hydrogen Sodium Vanadium Oxide Hydrate with …

The layered HNaV6O16·4H2O (hydrogen sodium vanadium oxide hydrate) with large interlayer spacing and interlayer H+ has been used as a cathode for the zinc-ion battery. However, it is rarely …

Energy storage device

The oxygen vacancy in Li-ion battery cathode materials

Oxygen vacancies (OVs) can promote Li-ion diffusion, reduce the charge transfer resistance, and improve the capacity and rate performance of LiBs. However, OVs can …

Energy storage device

Oxygen vacancy activated Bi2O3 nanoflowers as a high …

The peak at 529.8 eV was assigned the oxygen of the Bi–O bonds, the other peak at 530.6 eV was attributed to the oxygen vacancy. Obviously, the Bi 2 O 3-x exhibits a high proportion of oxygen vacancy [40]. These data further demonstrated the presence of Bi 4f (oxygen vacancies) in the Bi 2 O 3-x sample, which is in agreement …

Energy storage device

Oxygen vacancies enriched MOF-derived MnO/C hybrids for high ...

Oxygen vacancies enriched MnO/C hybrid cathode shows a high specific capacity of 336.8 mAh g −1 (0.1 A g −1) and the reversible capacity retention 73.8 % after 10,000 cycles at 1.0 A g −1, ... Lithium-ion battery is widely used in modern society because of their excellent performance [1], [2], [3]. However, safety issues and lithium ...

Energy storage device

Improving the oxygen redox reversibility of Li-rich battery …

Creation of oxygen vacancies and reduced manganese. To study the effect of oxygen vacancies and spinel-like structures in the pristine Li 1.2 Mn 0.6 Ni 0.2 O 2 (LRMO) cathode, a modified sample Li ...

Energy storage device

Co/CoO heterojunction rich in oxygen vacancies introduced by O

As a result, the three-dimensional NHCNBs coupled with NCNTs and unique heterojunction with rich oxygen vacancies reduce the charge transport resistance and accelerate the catalytic reaction rate of the P–Co/CoO V @NHCNB@NCNT, and they display exceedingly good electrocatalytic performance for oxygen reduction reaction …

Energy storage device

Oxygen vacancy chemistry in oxide cathodes

Oxide cathodes play a vital role in revolutionizing battery technology due to their high capacity and voltage for oxide-based batteries. However, oxygen vacancies (OVs) are an essential type of defect that …

Energy storage device

Rational Regulation of Optimal Oxygen Vacancy Concentrations …

DOI: 10.1021/acsami.4c05618 Corpus ID: 271532289; Rational Regulation of Optimal Oxygen Vacancy Concentrations on VO2 for Superior Aqueous Zinc-Ion Battery Cathodes. @article{Zhang2024RationalRO, title={Rational Regulation of Optimal Oxygen Vacancy Concentrations on VO2 for Superior Aqueous Zinc-Ion Battery Cathodes.}, …

Energy storage device

Oxygen Vacancy Mediation in SnO2 Electron Transport …

Previous findings have suggested a close association between oxygen vacancies in SnO2 and charge carrier recombination as well as perovskite decomposition at the perovskite/SnO2 interface. …

Energy storage device

Oxygen-vacancy-enriched MgO/carbon composite as a highly …

Oxygen-vacancy-enriched MgO/carbon composite as a highly efficient electrocatalyst for phenazine/dihydrophenazine redox reaction of aqueous phenazine redox flow battery. ... The flow battery experiments were carried out in a nitrogen-filled glove box using a commercial flow cell hardware (Fuel Cell Technologies Inc.) and a Neware …

Energy storage device

Oxygen Vacancy Diffusion and Condensation in Lithium-Ion Battery …

Energy storage device

Rational Regulation of Optimal Oxygen Vacancy Concentrations …

VO2 with its special tunnel structure and high theoretical capacity is an ideal candidate for cathode materials for aqueous zinc-ion batteries (ZIBs). However, the slow kinetics and structural instability due to the strong electrostatic interactions between the host structure of VO2 and Zn2+ hinder its application. Defect engineering is a well …

Energy storage device

Boosted charge transfer in oxygen vacancy-rich K+ birnessite …

The oxygen vacancy-rich K-birnessite MnO 2 (K x MnO 2) was synthesized by plasma etching strategy.K + intercalation in MnO 2 can adjust the interlayer distances and constructs a tunable ions channel. Oxygen vacancy can promote the rapid transfer of charges, so that it has dual-functional characteristics of Zn-ions battery and …

Energy storage device

Oxygen vacancy-expedited ion diffusivity in transition-metal …

Rapid capacity decay and inferior kinetics are the vital issues of anodes in the conversion reaction for lithium-ion batteries. Vacancy engineering can efficiently modulate the …

Energy storage device

Harnessing oxygen vacancy in V2O5 as high performing aqueous …

In the present work, oxygen vacancies are introduced into V 2 O 5 lattice for high performing aqueous zinc-ion battery.. The battery reaches an ultra-long cyclic duration of 620 h at 0.2 A g −1 without any significant capacity fading.. The oxygen-deficient V 2 O 5 possesses significantly higher specific capacity and better cyclic stability than …

Energy storage device

Oxygen vacancy boosted the electrochemistry performance of …

In this study, oxygen-deficient orthorhombic niobium oxide (T-Nb 2 O 5) has been synthesized via a facile solid-state reaction method.The strategies of Ti 4+ doping and being annealed in the reducing atmosphere can introduce oxygen vacancies to Nb 2 O 5 (denoted as NTAH). When being tested as lithium ion batteries'' anode, the obtained …

Energy storage device

Oxygen vacancy H2V3O8 nanowires as high-capacity cathode

The investigation unveils the impact of oxygen vacancy vanadium-based oxides on the performance of AZIBs, presenting a viable strategy for advanced cathode materials in AZIBs. ... Xiang B, Zou XF (2021) Flexible high-energy and stable rechargeable vanadium-zinc battery based on oxygen defect modulated V 2 O 5 cathode. Nano …

Energy storage device

In-depth study on diffusion of oxygen vacancies in Li (Ni

Oxygen vacancies are easier to diffuse into the bulk, thus reducing the concentration gradient of oxygen vacancies in the surface and bulk. ... Oxygen release degradation in Li-ion battery cathode materials: mechanisms and mitigating approaches. Adv. Energy Mater., 9 (2019), Article 1900551. View in Scopus Google Scholar [10] S. …

Energy storage device

One-step construction of oxygen vacancies and coating to …

The pristine LRNCM sample was produced by a facile carbonate co-precipitation approach. The original material has good spherical morphology (Fig. S1) g. 1 (a) shows the gas–solid interfacial reaction between C 10 H 5 NbO 20 ·xH 2 O and LRNCM, which aims to construct oxygen vacancies and Nb 2 O 5 /C coating on the surface of …

Energy storage device

Stalling oxygen evolution in high-voltage cathodes by ...

By comparing cryo-EPR spectra on uncharged, 4.3 V-charged, and 4.6 V-charged P-LCO (Fig. 6e), we found that significantly more oxygen vacancies 26,27 upon high-voltage charging (left behind by ...

Energy storage device

Oxygen vacancy battery

Dual‐Carbon Assisted Oxygen Vacancy ...

A visible light illumination assistant Li-O2 battery based on an oxygen …

Oxygen Vacancy Introduction to Increase the Capacity …

Self-supporting oxygen vacancy-rich α-MnO

Entropy stabilization effect and oxygen vacancy in spinel high …

Oxygen vacancy engineering of vertically aligned NiO nanosheets …

Oxygen vacancies-rich cobalt-doped NiMoO

Dual‐Carbon Assisted Oxygen Vacancy Engineering for

Visualization of oxygen vacancies and self-doped ligand holes in ...

The oxygen vacancy in Li-ion battery cathode materials

Trace Water‐induced Morphology Engineering and Oxygen Vacancy …

Oxygen vacancy modulated Ti2Nb10O29 anodes for high-rate …

Oxygen vacancies in metal oxides: recent progress towards advanced ...

Hydrogen Sodium Vanadium Oxide Hydrate with Oxygen Vacancy…

The oxygen vacancy in Li-ion battery cathode materials

Heterogeneous Interface Design with Oxygen Vacancy-Rich …

Oxygen Vacancy-Rich NiCo

Oxygen Vacancy Diffusion and Condensation in Lithium-Ion Battery …

Persistent and partially mobile oxygen vacancies in Li-rich layered ...

Oxygen-rich vacancy nickel–cobalt oxide cathode with low …

Hydrogen Sodium Vanadium Oxide Hydrate with …

The oxygen vacancy in Li-ion battery cathode materials

Oxygen vacancy activated Bi2O3 nanoflowers as a high …

Oxygen vacancies enriched MOF-derived MnO/C hybrids for high ...

Improving the oxygen redox reversibility of Li-rich battery …

Co/CoO heterojunction rich in oxygen vacancies introduced by O

Oxygen vacancy chemistry in oxide cathodes

Rational Regulation of Optimal Oxygen Vacancy Concentrations …

Oxygen Vacancy Mediation in SnO2 Electron Transport …

Oxygen-vacancy-enriched MgO/carbon composite as a highly …

Oxygen Vacancy Diffusion and Condensation in Lithium-Ion Battery …

Rational Regulation of Optimal Oxygen Vacancy Concentrations …

Boosted charge transfer in oxygen vacancy-rich K+ birnessite …

Oxygen vacancy-expedited ion diffusivity in transition-metal …

Harnessing oxygen vacancy in V2O5 as high performing aqueous …

Oxygen vacancy boosted the electrochemistry performance of …

Oxygen vacancy H2V3O8 nanowires as high-capacity cathode

In-depth study on diffusion of oxygen vacancies in Li (Ni

One-step construction of oxygen vacancies and coating to …

Stalling oxygen evolution in high-voltage cathodes by ...

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