scholarly journals Effect of Washing on the Electrochemical Performance of a Three-Dimensional Current Collector for Energy Storage Applications

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1596
Author(s):  
Sajid Ali Ansari ◽  
Nazish Parveen ◽  
Mohd Al Saleh Al-Othoum ◽  
Mohammad Omaish Ansari

The development of efficient materials for energy storage applications has attracted considerable attention, especially for supercapacitors and batteries that are the most promising and important power sources in everyday life. For this purpose, a suitable and efficient current collector must be determined and its behavior with respect to various solvents when it is used as an electrode material for energy storage applications should be understood. In this work, we studied the effect of washing three-dimensional nickel foam using different concentrations of hydrochloric acid and ethanol on the surface characteristics, electrochemical behavior, and storage performance of the foam. Additionally, we observed the different types of acidic treatments that improved the electrochemical and storage performances of the three-dimensional nickel foam. The surface characterization results show that acidic conditions with a concentration of 3M changes the surface morphology from a flat/hill-like structure to a nanosheet/nanoflake-like structure without any further treatment. This structure provides a nano-channel and a large number of surface charges during the electrochemical reaction. The results of this study show that pretreatment of 3D-NF is highly important and recommended. The present work also contributes to the knowledgebase on pretreatment of 3D-NF and its optimization.

Nanoscale ◽  
2019 ◽  
Vol 11 (28) ◽  
pp. 13639-13649 ◽  
Author(s):  
Pengxi Li ◽  
Chaohui Ruan ◽  
Jing Xu ◽  
Yibing Xie

A three-dimensional criss-crossed ZnMoO4/CoO nanohybrid was synthesized to deliver high energy storage performance.


1995 ◽  
Vol 117 (3) ◽  
pp. 385-393 ◽  
Author(s):  
Min S. Hong ◽  
Kornel F. Ehmann

An attempt is made to characterize and synthesize engineered surfaces. The proposed method, based on two-dimensional difference equations and two-dimensional linear autoregressive models, is not only an analytical tool to characterize but also to generate/synthesize three-dimensional surfaces with desired properties. The developed method expresses important three-dimensional surface characteristics such as the autocorrelation or power spectrum density functions in terms of the two-dimensional autoregressive coefficients.


2020 ◽  
Vol 167 (10) ◽  
pp. 100509 ◽  
Author(s):  
Awais Ali ◽  
Muhammad Ammar ◽  
Iqra Hameed ◽  
Muddassir Ali ◽  
Muhammad Tayyab ◽  
...  

2019 ◽  
Vol 21 (8) ◽  
pp. 4538-4546 ◽  
Author(s):  
S. Engelke ◽  
L. E. Marbella ◽  
N. M. Trease ◽  
M. De Volder ◽  
C. P. Grey

The ability to resolve solvent in- and outside of the pores of mesoscopic porous silicon structures allows the effect of confinement on transport to be explored by 1H and 7Li PFG NMR methods and pore diameters and lengths to be estimated.


2016 ◽  
Vol 4 (13) ◽  
pp. 4820-4830 ◽  
Author(s):  
N. Padmanathan ◽  
Han Shao ◽  
David McNulty ◽  
Colm O'Dwyer ◽  
Kafil. M. Razeeb

Simultaneous heterogeneous growth of one-dimensional nanorod supported three-dimensional microflower structures on nickel foam enhanced the non-capacitive faradaic energy storage performance due to the synergistic contribution from the hierarchical hybrid nanostructure.


2021 ◽  
Vol 11 (4) ◽  
pp. 1958
Author(s):  
Fabrizio Alvaro ◽  
Elpida Piperopoulos ◽  
Luigi Calabrese ◽  
Emanuele La Mazza ◽  
Maurizio Lanza ◽  
...  

In this paper, tricalcium aluminate hexahydrate (Ca3Al2O6·6H2O), thanks to its appropriate features, was assessed as an innovative, low-cost and nontoxic material for thermochemical energy storage applications. The high dehydration heat and the occurring temperature (200–300 °C) suggest that this material could be more effective than conventional thermochemical storage materials operating at medium temperature. For these reasons, in the present paper, Ca3Al2O6·6H2O hydration/dehydration performances, at varying synthesis procedures, were assessed. Experimentally, a co-precipitation and a solid–solid synthesis were studied in order to develop a preparation method that better provides a performing material for this specific application field. Thermal analysis (TGA, DSC) and structural characterization (XRD) were performed to evaluate the thermochemical behavior at medium temperature of the prepared materials. Furthermore, reversibility of the dehydration process and chemical stability of the obtained materials were investigated through cycling dehydration/hydration tests. The promising results, in terms of de/hydration performance and storage density (≈200 MJ/m3), confirm the potential effectiveness of this material for thermochemical energy storage applications and encourage further developments on this topic.


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