PVA-assisted hydrated vanadium pentoxide/reduced graphene oxide films for excellent Li+ and Zn2+ storage properties

Hu, Tao; Sun, Jingjing; Zhang, Yifu; Liu, Yanyan; Jiang, Hanmei; Dong, Xueliang; Zheng, Jiqi; Meng, Changgong; Huang, Chi

doi:10.1016/j.jmst.2020.10.087

Cited by 20 publications

(5 citation statements)

References 64 publications

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“…Moreover, it can also remove anions and cations and organic pollutants in dye wastewater. Very meaningful research results including remote liquefaction (Figure 6(a)) [127], molecular ink [128], contact lens sensor [129], and so on [130][131][132][133] are also reported. As a biocompatible polymer, PVA-based hydrogels prepared with bimetallic ions as crosslinking agents have high water retention properties, excellent mechanical strength, and self-healing properties and have also been studied for artificial skin and wearable sensor devices (Figure 6(b)) [120,134].…”

Section: 42mentioning

confidence: 80%

Poly(vinyl alcohol) Hydrogels: The Old and New Functional Materials

Wang

Bai

Shao

et al. 2021

International Journal of Polymer Science

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Hydrogels have three-dimensional network structures, high water content, good flexibility, biocompatibility, and stimulation response, which have provided a unique role in many fields such as industry, agriculture, and medical treatment. Poly(vinyl alcohol) PVA hydrogel is one of the oldest composite hydrogels. It has been extensively explored due to its chemical stability, nontoxic, good biocompatibility, biological aging resistance, high water-absorbing capacity, and easy processing. PVA-based hydrogels have been widely investigated in drug carriers, articular cartilage, wound dressings, tissue engineering, and other intelligent materials, such as self-healing and shape-memory materials, supercapacitors, sensors, and other fields. In this paper, the discovery, development, preparation, modification methods, and applications of PVA functionalized hydrogels are reviewed, and their potential applications and future research trends are also prospected.

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Section: 42mentioning

confidence: 80%

Poly(vinyl alcohol) Hydrogels: The Old and New Functional Materials

Wang

Bai

Shao

et al. 2021

International Journal of Polymer Science

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“…Among them, vanadium oxides deliver high theoretical capacity due to multi‐electron redox and comparatively low molar mass 11,22 . It is widely used in ESSs with various charge carriers 23–25 . When applied to NH 4 + storage, vanadium oxide has abundant oxygen group and layer space, which provides the basis for NH 4 + to form hydrogen bonds and transport between layers 2 .…”

Section: Introductionmentioning

confidence: 99%

“…11,22 It is widely used in ESSs with various charge carriers. [23][24][25] When applied to NH 4 + storage, vanadium oxide has abundant oxygen group and layer space, which provides the basis for NH 4 + to form hydrogen bonds and transport between layers. 2 However, the stability and reversibility in this system are still not highly desirable, due to the incomplete fracture of hydrogen bond and partial extraction of ammonium ions.…”

Section: Introductionmentioning

confidence: 99%

Synergistic effect of K⁺and PANI in vanadium oxide hydration by interlayer engineering boosts the ammonium ion storage

Chen

Feng

Dong

et al. 2023

SusMat

Self Cite

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Aqueous ammonium-ion (NH 4 + ) hybrid supercapacitor (AA-HSC), as a new type of energy storage device with great potential, is in the initial stage of rapid development. Based on its special energy storage mechanism, exploiting novel NH 4 + -hosting materials is still a great challenge. Herein, vanadium oxide hydration (VOH) tuned by interlayer engineering of K + /PANI co-intercalation, named KVO/PANI, is designed for AA-HSC. Intercalated PANI can shield interaction between NH 4 + and V-O layers to some extent and enlarge interlayer space, which improves the efficiency of reversible NH 4 + (de)insertion. However, K +enhances redox activity and electronic conductivity. The synergistic effect of co-intercalation optimizes intercalation pseudocapacitive behavior during the (de)ammonization process, which is reported in NH 4 + storage for the first time.Theoretical calculations reveal that the lowered electron transport barrier and enhanced electronic conductivity improve NH 4 + kinetics and exhibit high capacitance for charge storage. The KVO/PANI can deliver the specific capacitance of 340 F g −1 at 0.5 A g −1 and retain 177 F g −1 at 10 A g −1 . Pairing with activated carbon, the AA-HSC can achieve a decent energy density of 31.8 Wh kg −1 . This work gives inorganic/organic co-intercalation that can enhance the NH 4 + storage of VOH by interlayer engineering. The strategy can be used to design other materials for aqueous energy storage systems.

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“…High surface area, suitable electrical conductivity, and low toxicity are considered the most important points for using carbon materials to support modified surfaces. Different carbon materials were reported as proper support for transition metals-based modified surfaces like carbon nanotubes (CNTs) [39,40], graphene [41][42][43], graphene oxides [44], conducting polymer [45], chitosan [46,47], and porous carbon [48]. With their superior electronic conductivity and robust mechanical qualities, carbon nanotubes are frequently used as electrode materials for energy storage systems [49][50][51].…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of NiFe2O4 Nano-Spinel Oxide-Decorated Carbon Nanotubes for Efficient Capacitive Performance—Effect of Electrolyte Concentration

Bashal,

Hefnawy,

Ahmed

et al. 2023

Nanomaterials

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Energy storage applications received great attention due to environmental aspects. A green method was used to prepare a composite of nickel–iron-based spinel oxide nanoparticle@CNT. The prepared materials were characterized by different analytical methods like X-ray diffraction, X-ray photon spectroscopy (XPS), scanning electron microscopy (SEM), and transmitted electron microscopy (TEM). The synergistic effect between nickel–iron oxide and carbon nanotubes was characterized using different electrochemical methods like cyclic voltammetry (CV), galvanostatic charging/discharging (GCD), and electrochemical impedance spectroscopy (EIS). The capacitances of the pristine NiFe2O4 and NiFe2O4@CNT were studied in different electrolyte concentrations. The effect of OH− concentrations was studied for modified and non-modified surfaces. Furthermore, the specific capacitance was estimated for pristine and modified NiFe2O4 at a wide current range (5 to 17 A g−1). Thus, the durability of different surfaces after 2000 cycles was studied, and the capacitance retention was estimated as 78.8 and 90.1% for pristine and modified NiFe2O4. On the other hand, the capacitance rate capability was observed as 65.1% (5 to 17 A g−1) and 62.4% (5 to 17 A g−1) for NiFe2O4 and NiFe2O4@CNT electrodes.

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PVA-assisted hydrated vanadium pentoxide/reduced graphene oxide films for excellent Li+ and Zn2+ storage properties

Cited by 20 publications

References 64 publications

Poly(vinyl alcohol) Hydrogels: The Old and New Functional Materials

Poly(vinyl alcohol) Hydrogels: The Old and New Functional Materials

Synergistic effect of K⁺and PANI in vanadium oxide hydration by interlayer engineering boosts the ammonium ion storage

Green Synthesis of NiFe2O4 Nano-Spinel Oxide-Decorated Carbon Nanotubes for Efficient Capacitive Performance—Effect of Electrolyte Concentration

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PVA-assisted hydrated vanadium pentoxide/reduced graphene oxide films for excellent Li+ and Zn2+ storage properties

Cited by 20 publications

References 64 publications

Poly(vinyl alcohol) Hydrogels: The Old and New Functional Materials

Poly(vinyl alcohol) Hydrogels: The Old and New Functional Materials

Synergistic effect of K+and PANI in vanadium oxide hydration by interlayer engineering boosts the ammonium ion storage

Green Synthesis of NiFe2O4 Nano-Spinel Oxide-Decorated Carbon Nanotubes for Efficient Capacitive Performance—Effect of Electrolyte Concentration

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Synergistic effect of K⁺and PANI in vanadium oxide hydration by interlayer engineering boosts the ammonium ion storage