Oxygen vacancy-engineered Fe2O3nanoarrays as free-standing electrodes for flexible asymmetric supercapacitors

Nanoscale ◽  
2019 ◽  
Vol 11 (26) ◽  
pp. 12477-12483 ◽  
Author(s):  
Fenfen Han ◽  
Jia Xu ◽  
Jie Zhou ◽  
Jian Tang ◽  
Weihua Tang
Keyword(s):  
Oxygen Vacancy ◽  
Oxygen Vacancies ◽  
Charge Storage ◽  
Free Standing ◽  
Asymmetric Supercapacitors ◽  
Storage Performance ◽  
N Doping

Oxygen vacancies and N-doping boost the charge storage performance of Fe2O3nanoarrays.

scholarly journals First-Principles Study on the Structural and Electronic Properties of N Atoms Doped-Rutile TiO2of Oxygen Vacancies

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Zhong-Liang Zeng
Keyword(s):  
Oxygen Vacancy ◽  
Fermi Level ◽  
First Principles ◽  
Oxygen Vacancies ◽  
Stable State ◽  
Metal Atoms ◽  
Structural And Electronic Properties ◽  
Type Semiconductor ◽  
N Doping ◽  
Impurity Elements

For the propose of considering the actual situation of electronic neutral, a simulation has been down on the basis of choosing the position of dual N and researching the oxygen vacancy. It is found that the reason why crystal material gets smaller is due to the emergence of impurity levels. By introducing the oxygen vacancy to the structure, the results show that while the oxygen vacancy is near the two nitrogen atoms which have a back to back position, its energy gets the lowest level and its structure gets the most stable state. From its energy band structure and density, the author finds that the impurity elements do not affect the migration of Fermi level while the oxygen vacancy has been increased. Instead of that, the conduction band of metal atoms moves to the Fermi level and then forms the N-type semiconductor material, but the photocatalytic activity is not as good as the dual N-doping state.

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 ◽  
...  
Keyword(s):  
Energy Storage ◽  
Oxygen Vacancies ◽  
Dominant Role ◽  
Charge Storage ◽  
Surface Oxygen ◽  
Storage Performance

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.

Efficient high active mass paper-based energy-storage devices containing free-standing additive-less polypyrrole–nanocellulose electrodes

2014 ◽  
Vol 2 (21) ◽  
pp. 7711-7716 ◽  
Author(s):  
Zhaohui Wang ◽  
Petter Tammela ◽  
Peng Zhang ◽  
Maria Strømme ◽  
Leif Nyholm
Keyword(s):  
Energy Storage ◽  
Charge Storage ◽  
Energy Storage Devices ◽  
Free Standing ◽  
Free Paper ◽  
Active Mass ◽  
Storage Devices ◽  
Storage Performance ◽  
Novel Approach

A novel approach is employed to fabricate free-standing and additive-free paper electrodes containing up to 90 wt% polypyrrole (PPy), and with PPy mass loadings up to 20 mg cm−2, which demonstrates excellent charge storage performance for paper-based energy storage devices.

Chemoselective Hydrogenation of Cinnamaldehyde over Tailored Oxygen Vacancy Rich Pd@ZrO2 Catalyst

2021 ◽  
Author(s):  
Komal N. Patil ◽  
Divya Prasad ◽  
Jayesh T. Bhanushali ◽  
Bhalchandra Kakade ◽  
Arvind H. Jadhav ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Selective Hydrogenation ◽  
Oxygen Vacancies ◽  
Synthesis Method ◽  
Chemoselective Hydrogenation ◽  
Zro2 Catalyst ◽  
Industrial Relevance

Selective hydrogenation of cinnamaldehyde to hydrocinnamaldehyde is captivating due to its industrial relevance. Herein, two-step synthesis method was adopted to develop oxygen vacancies in Pd@ZrO2 catalysts. The oxygen vacancies were...

In situ synthesis of Cl-doped Bi2O2CO3 and its enhancement of photocatalytic activity by inducing generation of oxygen vacancies

2020 ◽  
Vol 7 (16) ◽  
pp. 2969-2978
Author(s):  
Jie-hao Li ◽  
Jie Ren ◽  
Ying Liu ◽  
Hui-ying Mu ◽  
Rui-hong Liu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Ionic Liquids ◽  
Oxygen Vacancy ◽  
Oxygen Vacancies ◽  
In Situ Synthesis ◽  
Photocatalytic Mechanism

Cl-Doped Bi2O2CO3 is prepared using ionic liquids as dopants and the oxygen-vacancy-induced photocatalytic mechanism is revealed.

A hierarchical oxygen vacancy-rich WO3 with “nanowire-array-on-nanosheet-array” structure for highly efficient oxygen evolution reaction

2019 ◽  
Vol 7 (12) ◽  
pp. 6730-6739 ◽  
Author(s):  
Jinxiang Diao ◽  
Wenyu Yuan ◽  
Yu Qiu ◽  
Laifei Cheng ◽  
Xiaohui Guo
Keyword(s):  
Oxygen Vacancy ◽  
Oxygen Evolution Reaction ◽  
Oxygen Vacancies ◽  
State Of The Art ◽  
Nanowire Array ◽  
Nanowire Arrays ◽  
Nanosheet Array ◽  
Nanosheet Arrays ◽  
Array Structure ◽  
First Time

Hierarchical vertical WO3 nanowire arrays on vertical WO3 nanosheet arrays with rich oxygen vacancies were synthesized via a simple and facile method, and the outstanding OER performance which is superior to that of most reported state-of-the-art catalysts was reported for the first time.

Charge-storage performance of Li/LiFePO4 cells with additive-incorporated ionic liquid electrolytes at various temperatures

2014 ◽  
Vol 260 ◽  
pp. 268-275 ◽  
Author(s):  
Nithinai Wongittharom ◽  
Chueh-Han Wang ◽  
Yi-Chen Wang ◽  
George Ting-Kuo Fey ◽  
Hui-Ying Li ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Charge Storage ◽  
Storage Performance ◽  
Liquid Electrolytes

Charge storage performance of doped carbons prepared from polyaniline for supercapacitors

2010 ◽  
Vol 15 (1) ◽  
pp. 175-182 ◽  
Author(s):  
Limin Li ◽  
Enhui Liu ◽  
Haijie Shen ◽  
Yanjing Yang ◽  
Zhengzheng Huang ◽  
...  
Keyword(s):  
Charge Storage ◽  
Storage Performance

Flexible additive-free CC@TiOxNy@SnS2 nanocomposites with excellent stability and superior rate capability for lithium-ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24366-24372 ◽  
Author(s):  
Fengqi Lu ◽  
Qiang Chen ◽  
Yibin Wang ◽  
Yonghao Wu ◽  
Pengcheng Wei ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Hydrothermal Process ◽  
Rate Capability ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Free Standing ◽  
Storage Performance ◽  
Excellent Stability

The free-standing CC@TiOxNy@SnS2 nanocomposites have been synthesized via two steps hydrothermal process and exhibited excellent lithium storage performance.

Sign in / Sign up

Export Citation Format

Share Document