Oxygen vacancies on the surface of HxWO3−y for enhanced charge storage

2018 ◽  
Vol 6 (16) ◽  
pp. 6780-6784 ◽  
Author(s):  
Haiyan Wang ◽  
Ruxue Fan ◽  
Jingyu Miao ◽  
Jiayi Chen ◽  
Shanjun Mao ◽  
...  

The dominant role of surface oxygen vacancies (OVs) in improving energy storage is underscored by comparing the OV-mediated charge storage performance of surface and bulk defective HxWO3−y with that of WO3 and bulk defective e-HxWO3−y.

2020 ◽  
Vol 46 (7) ◽  
pp. 9233-9239 ◽  
Author(s):  
Thayse R. Silva ◽  
Vinícius D. Silva ◽  
Luciena S. Ferreira ◽  
Allan J.M. Araújo ◽  
Marco A. Morales ◽  
...  

Small Methods ◽  
2021 ◽  
pp. 2100550
Author(s):  
Alfonso J. Carrillo ◽  
Lidia E. Chinchilla ◽  
Ana Iglesias‐Juez ◽  
Santiago Gutiérrez‐Rubio ◽  
Daniel Sastre ◽  
...  

2019 ◽  
Vol 21 (11) ◽  
pp. 5974-5988 ◽  
Author(s):  
Abhishek Sasmal ◽  
Shrabanee Sen ◽  
P. Sujatha Devi

In the present work, we report the enhanced dielectric, ferroelectric, energy storage and energy harvesting performance of a citrate-gel synthesized Bi1−xBaxFeO3 (x = 0, 0.05, 0.10) incorporating poly(vinylidene fluoride) (PVDF) matrix.


Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7854
Author(s):  
Xian-Kui Wei ◽  
Rafal E. Dunin-Borkowski ◽  
Joachim Mayer

Benefitting from exceptional energy storage performance, dielectric-based capacitors are playing increasingly important roles in advanced electronics and high-power electrical systems. Nevertheless, a series of unresolved structural puzzles represent obstacles to further improving the energy storage performance. Compared with ferroelectrics and linear dielectrics, antiferroelectric materials have unique advantages in unlocking these puzzles due to the inherent coupling of structural transitions with the energy storage process. In this review, we summarize the most recent studies about in-situ structural phase transitions in PbZrO3-based and NaNbO3-based systems. In the context of the ultrahigh energy storage density of SrTiO3-based capacitors, we highlight the necessity of extending the concept of antiferroelectric-to-ferroelectric (AFE-to-FE) transition to broader antiferrodistortive-to-ferrodistortive (AFD-to-FD) transition for materials that are simultaneously ferroelastic. Combining discussion of the factors driving ferroelectricity, electric-field-driven metal-to-insulator transition in a (La1−xSrx)MnO3 electrode is emphasized to determine the role of ionic migration in improving the storage performance. We believe that this review, aiming at depicting a clearer structure–property relationship, will be of benefit for researchers who wish to carry out cutting-edge structure and energy storage exploration.


2008 ◽  
Vol 129 (24) ◽  
pp. 244710 ◽  
Author(s):  
S. Lettieri ◽  
M. Causà ◽  
A. Setaro ◽  
F. Trani ◽  
V. Barone ◽  
...  

2017 ◽  
Vol 41 (20) ◽  
pp. 12231-12240 ◽  
Author(s):  
Bin Liu ◽  
Congming Li ◽  
Guoqiang Zhang ◽  
Lifei Yan ◽  
Zhong Li

The addition of CaO to the CeO2 catalyst had a significant impact on the acid–base properties and amounts of oxygen vacancies on the surface catalyst.


RSC Advances ◽  
2020 ◽  
Vol 10 (53) ◽  
pp. 31712-31719
Author(s):  
Sree Raj K. A. ◽  
Afsal S. Shajahan ◽  
Brahmananda Chakraborty ◽  
Chandra Sekhar Rout

Hybrid structure of VSe2 and multiwalled carbon nanotube for high performance supercapacitor applications.


2009 ◽  
Vol 40 (2) ◽  
pp. 236-238 ◽  
Author(s):  
F. Trani ◽  
M. Causà ◽  
S. Lettieri ◽  
A. Setaro ◽  
D. Ninno ◽  
...  

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