Monodisperse Ba0.6Sr0.4TiO3 hollow spheres via a modified template-assisted method

Jia-dong, XU; Guo, Yiting; Zhang, Kena; Liu, Shuhang; Zhao, Jia; Pawlikowska, Emilia; Szafran, M.; Gao, Feng

doi:10.1016/j.apsusc.2020.147315

Cited by 6 publications

(2 citation statements)

References 29 publications

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“…The template-assisted method is separated into hard and soft templates . The template-assisted approach is considered a powerful generic method for producing hollow structures by sacrificing materials. , Unfortunately, removing the template frequently necessitates a postprocessing step, which takes a long time, requires more energy, and introduces some heterogeneous contaminants. The hollow structures produced using the template-assisted method may lose a significant portion of their active sites because of surface restoration .…”

Section: Introductionmentioning

confidence: 99%

Engineering Rich-Cation Vacancies in CuCo₂O₄ Hollow Spheres with a Large Surface Area Derived from a Template-Free Approach for Ultrahigh Capacity and High-Energy Density Supercapacitors

Reddy

Sravani

Jung

et al. 2023

ACS Appl. Mater. Interfaces

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Intriguing cationic defects with hollow nano-/microstructures are a critical challenge but a potential strategy to discover electrochemical energy conversion and storage devices with improved electrochemical performances. Herein, we successfully produced a highly porous, and large surface area of self-templated CuCo 2 O 4 hollow spheres (CCOHSs) with cationic defects via a solvothermal route. We hypothesized that the inside-out Ostwald ripening mechanism of the template-free strategy was the framework for forming the CCOHSs. Cationic defects (Cu) within the CCOHSs were identified by employing various analytical techniques, including energy-dispersive X-ray spectroscopy analysis of both scanning and transmission electron microscopy, X-ray photon spectroscopy, and inductively coupled plasma− atomic emission spectroscopy. The resulting CCOHSs had significant properties, such as a high specific surface area of 98.32 m 2 g −1 , rich porosity, and battery-type electrode behavior in supercapacitor applications. Notably, the CCOHSs demonstrated an outstanding specific capacity of 1003.7 C g −1 at 1 A g −1 , with excellent structural integrity and cycle stability. Moreover, the fabricated asymmetric CCOHS//activated carbon device exhibited a high energy density of 65.2 Wh kg −1 at a power density of 777.8 W kg −1 .

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Section: Introductionmentioning

confidence: 99%

Engineering Rich-Cation Vacancies in CuCo₂O₄ Hollow Spheres with a Large Surface Area Derived from a Template-Free Approach for Ultrahigh Capacity and High-Energy Density Supercapacitors

Reddy

Sravani

Jung

et al. 2023

ACS Appl. Mater. Interfaces

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“…As observed from HRTEM (Figure 3d), both BST and Au show crystallized phases, and interplanar spacings of 0.279 and 0.234 nm were detected, which are requisitely consistent with the BST (110) and Au (111) planes, respectively. 32,33 Besides, the statistical diameter distribution of Au nanoparticles is also plotted in Figure 3c. The diameter of most Au nanoparticles is below 6 nm, and the average diameter obtained by statistical analysis is about 5.1 nm.…”

Section: Resultsmentioning

confidence: 99%

Ultra-Fine Gold Nanoparticles Enabled Au-BST NF/PVTC Composites to Have Excellent Energy Storage Performance

Xiong

Zhang

Yang

2021

ACS Appl. Energy Mater.

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Composites composed of a polymer matrix and inorganic fillers have attracted tremendous attention owing to their promising application in flexible dielectric film capacitors. However, boosting the energy density while ensuring a high charging-discharging efficiency is still a huge challenge. In this work, Ba0.6Sr0.4TiO3 nanofibers (BST NFs) doped with different contents of ultra-fine Au nanoparticles are precisely prepared by one-step electrospinning, and P(VDF-TrFE-CFE) (PVTC)-based composites incorporated with various nanofibers are further prepared via a solution-casting process. A superior discharged energy density of 14.2 J/cm3 and an excellent energy storage efficiency of 71.3% have been achieved in such monolayer composites by optimizing the doping content and distribution of ultra-fine Au nanoparticles in BST NFs, which are induced by enhanced electric displacement and ensure suppressed energy loss and improved electric breakdown strength. Hence, doping moderate ultra-fine metal nanoparticles in one-dimensional inorganic nanofillers is a feasible strategy for designing polymer-based composites with outstanding performance.

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Recent Advances in Perovskite Ceramics: Synthesis, Processing, and Applications

Huamán,

Baharuddin,

Mohamed

et al. 2023

Advances in Material Research and Technology

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Monodisperse Ba0.6Sr0.4TiO3 hollow spheres via a modified template-assisted method

Cited by 6 publications

References 29 publications

Engineering Rich-Cation Vacancies in CuCo₂O₄ Hollow Spheres with a Large Surface Area Derived from a Template-Free Approach for Ultrahigh Capacity and High-Energy Density Supercapacitors

Engineering Rich-Cation Vacancies in CuCo₂O₄ Hollow Spheres with a Large Surface Area Derived from a Template-Free Approach for Ultrahigh Capacity and High-Energy Density Supercapacitors

Ultra-Fine Gold Nanoparticles Enabled Au-BST NF/PVTC Composites to Have Excellent Energy Storage Performance

Recent Advances in Perovskite Ceramics: Synthesis, Processing, and Applications

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Monodisperse Ba0.6Sr0.4TiO3 hollow spheres via a modified template-assisted method

Cited by 6 publications

References 29 publications

Engineering Rich-Cation Vacancies in CuCo2O4 Hollow Spheres with a Large Surface Area Derived from a Template-Free Approach for Ultrahigh Capacity and High-Energy Density Supercapacitors

Engineering Rich-Cation Vacancies in CuCo2O4 Hollow Spheres with a Large Surface Area Derived from a Template-Free Approach for Ultrahigh Capacity and High-Energy Density Supercapacitors

Ultra-Fine Gold Nanoparticles Enabled Au-BST NF/PVTC Composites to Have Excellent Energy Storage Performance

Recent Advances in Perovskite Ceramics: Synthesis, Processing, and Applications

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Engineering Rich-Cation Vacancies in CuCo₂O₄ Hollow Spheres with a Large Surface Area Derived from a Template-Free Approach for Ultrahigh Capacity and High-Energy Density Supercapacitors

Engineering Rich-Cation Vacancies in CuCo₂O₄ Hollow Spheres with a Large Surface Area Derived from a Template-Free Approach for Ultrahigh Capacity and High-Energy Density Supercapacitors