Hierarchical NiSe2 Nanosheet Arrays as a Robust Cathode toward Superdurable and Ultrafast Ni–Zn Aqueous Batteries

2020 ◽  
Vol 12 (31) ◽  
pp. 34931-34940 ◽  
Author(s):  
Wanhai Zhou ◽  
Jian He ◽  
Ding Zhu ◽  
Jinchi Li ◽  
Yungui Chen
Keyword(s):  
Nanosheet Arrays ◽  
Aqueous Batteries

Carbon-coated TiNb2O7 nanosheet arrays as self-supported high mass-loading anode for flexible Li-ion battery

2021 ◽  
Author(s):  
Jinquan Zhou ◽  
Haoyang Dong ◽  
Yao Chen ◽  
yihua Ye ◽  
Liang Xiao ◽  
...  
Keyword(s):  
Diffusion Length ◽  
High Mass ◽  
Carbon Cloth ◽  
Mass Loading ◽  
Solvothermal Process ◽  
Li Ion Battery ◽  
Nanosheet Arrays ◽  
Carbon Coated ◽  
Li Ion ◽  
First Time

TiNb2O7 anode constructed with carbon-coated nanosheet arrays on carbon cloth is prepared by a facile solvothermal process and post carbon-coating for the first time. With nanosized diffusion-length and reduced polarization...

Engineering Sulfur Vacancies into Fe9S10 Nanosheet Arrays for Efficient Alkaline Hydrogen Evolution

Nanoscale ◽  
2021 ◽  
Author(s):  
Wenjun He ◽  
Jianing Cheng ◽  
Yaohui Gao ◽  
Caichi Liu ◽  
Jianling Zhao ◽  
...  
Keyword(s):  
Transition Metal ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Metal Sulfides ◽  
Transition Metal Sulfides ◽  
Nanosheet Arrays ◽  
Excellent Activity ◽  
Earth Abundant ◽  
Iron Based

The development of earth-abundant transition metal sulfides electrocatalysts with excellent activity and stability toward alkaline hydrogen evolution reaction (HER) is critical but challenging. Iron-based sulfides are favored due to their...

scholarly journals A four-electron Zn-I2 aqueous battery enabled by reversible I−/I2/I+ conversion

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yiping Zou ◽  
Tingting Liu ◽  
Qijun Du ◽  
Yingying Li ◽  
Haibo Yi ◽  
...  
Keyword(s):  
Aqueous Electrolyte ◽  
Chloride Ions ◽  
Experimental Characterization ◽  
Redox Couples ◽  
Free Chloride ◽  
Reversible Redox ◽  
Aqueous Battery ◽  
Storage Batteries ◽  
Aqueous Batteries ◽  
Superior Level

AbstractElectrochemically reversible redox couples that embrace more electron transfer at a higher potential are the eternal target for energy storage batteries. Here, we report a four-electron aqueous zinc-iodine battery by activating the highly reversible I2/I+ couple (1.83 V vs. Zn/Zn2+) in addition to the typical I−/I2 couple (1.29 V). This is achieved by intensive solvation of the aqueous electrolyte to yield ICl inter-halogens and to suspend its hydrolysis. Experimental characterization and modelling reveal that limited water activity and sufficient free chloride ions in the electrolyte are crucial for the four-electron process. The merits of the electrolyte also afford to stabilize Zn anode, leading to a reliable Zn-I2 aqueous battery of 6000 cycles. Owing to high operational voltage and capacity, energy density up to 750 Wh kg−1 based on iodine mass was achieved (15–20 wt% iodine in electrode). It pushes the Zn-I2 battery to a superior level among these available aqueous batteries.

Epitaxial In2S3/ZnIn2S4 heterojunction nanosheet arrays on FTO substrates for photoelectrochemical water splitting

2021 ◽  
Vol 563 ◽  
pp. 150289
Author(s):  
Huimin Geng ◽  
Pengzhan Ying ◽  
Kun Li ◽  
Yulong Zhao ◽  
Xiuquan Gu
Keyword(s):  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Nanosheet Arrays

Self-discharge in Li-ion aqueous batteries: A case study on LiMn2O4

2021 ◽  
Vol 373 ◽  
pp. 137847
Author(s):  
R. Trócoli ◽  
A. Morata ◽  
C Erinmwingbovo ◽  
F. La Mantia ◽  
A. Tarancón
Keyword(s):  
Li Ion ◽  
Aqueous Batteries

Iron and Nitrogen Co-doped CoSe2 Nanosheet Arrays for Robust Electrocatalytic Water Oxidation

2021 ◽  
Author(s):  
Di Li ◽  
Yingying Xing ◽  
Changjian Zhou ◽  
Yikai Lu ◽  
Shengjie Xu ◽  
...  
Keyword(s):  
Water Splitting ◽  
Water Oxidation ◽  
Energy Barrier ◽  
Large Scale ◽  
Scale Production ◽  
Reaction Energy ◽  
Large Scale Production ◽  
Nanosheet Arrays ◽  
Production Of Hydrogen ◽  
Co Doped

The high reaction energy barrier of the oxygen evolution reaction (OER) extremely reduces the efficiency of water splitting, which is not conducive to large-scale production of hydrogen. Due to the...

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