Facile construction of graphene-like Ni3S2 nanosheets through the hydrothermally assisted sulfurization of nickel foam and their application as self-supported electrodes for supercapacitors

RSC Advances ◽  
2015 ◽  
Vol 5 (32) ◽  
pp. 25446-25449 ◽  
Author(s):  
Ming Zhuo ◽  
Ping Zhang ◽  
Yuejiao Chen ◽  
Qiuhong Li
Keyword(s):  
Nickel Sulfide ◽  
Nickel Foam ◽  
Low Cost ◽  
Large Area ◽  
Ni Foam ◽  
Cost Approach ◽  
Electrodes For Supercapacitors

A facile and low-cost approach has been developed for the fabrication of large-area nickel sulfide nanosheets via the hydrothermally assisted sulfurization of Ni foam.

Wet-chemistry topotactic synthesis of bimetallic iron–nickel sulfide nanoarrays: an advanced and versatile catalyst for energy efficient overall water and urea electrolysis

2018 ◽  
Vol 6 (10) ◽  
pp. 4346-4353 ◽  
Author(s):  
Wenxin Zhu ◽  
Zhihao Yue ◽  
Wentao Zhang ◽  
Na Hu ◽  
Zhengtao Luo ◽  
...  
Keyword(s):  
Energy Efficient ◽  
Nickel Sulfide ◽  
Nickel Foam ◽  
Ni Foam ◽  
Wet Chemistry ◽  
Urea Electrolysis ◽  
Iron Nickel

Bimetallic iron–nickel sulfide nanowall arrays supported on nickel foam (Fe11.1%–Ni3S2/Ni foam) could efficiently drive both the overall water and urea electrolysis.

Amorphous nickel sulfide nanosheets with embedded vanadium oxide nanocrystals on nickel foam for efficient electrochemical water oxidation

2019 ◽  
Vol 7 (17) ◽  
pp. 10534-10542 ◽  
Author(s):  
Yanli Niu ◽  
Wei Li ◽  
Xiuju Wu ◽  
Bomin Feng ◽  
Yanan Yu ◽  
...  
Keyword(s):  
Vanadium Oxide ◽  
Water Oxidation ◽  
Nickel Sulfide ◽  
Nickel Foam ◽  
Ni Foam

A self-supported hierarchical OER catalyst comprising VO/VO2 nanocrystals embedded in amorphous Ni3S2 nanosheets on Ni foam is reported.

Interconnected CuS nanowalls with rough surfaces grown on nickel foam as high-performance electrodes for supercapacitors

RSC Advances ◽  
2016 ◽  
Vol 6 (65) ◽  
pp. 59976-59983 ◽  
Author(s):  
Yan Zhang ◽  
Jie Xu ◽  
Yayun Zheng ◽  
Xiaoyang Hu ◽  
Yuanyuan Shang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Rough Surfaces ◽  
Nickel Foam ◽  
Three Dimensional ◽  
Synthetic Route ◽  
Ni Foam ◽  
Binder Free ◽  
Excellent Cycling Stability ◽  
Electrodes For Supercapacitors

Three-dimensional interconnected CuS nanowalls with rough surfaces on Ni foam were obtained through a facial ​ synthetic route. The binder-free electrode exhibits high electrochemical performance with excellent cycling stability.

Computer simulation study about the dependence of amorphous silicon photonic waveguides efficiency on the material quality

2020 ◽  
Vol 90 (3) ◽  
pp. 30502
Author(s):  
Alessandro Fantoni ◽  
João Costa ◽  
Paulo Lourenço ◽  
Manuela Vieira
Keyword(s):  
Amorphous Silicon ◽  
High Throughput Screening ◽  
Simulation Analysis ◽  
Low Cost ◽  
Deposition Process ◽  
Large Area ◽  
Sidewall Roughness ◽  
Sensing Applications ◽  
Fabrication Defects ◽  
The Impact

Amorphous silicon PECVD photonic integrated devices are promising candidates for low cost sensing applications. This manuscript reports a simulation analysis about the impact on the overall efficiency caused by the lithography imperfections in the deposition process. The tolerance to the fabrication defects of a photonic sensor based on surface plasmonic resonance is analysed. The simulations are performed with FDTD and BPM algorithms. The device is a plasmonic interferometer composed by an a-Si:H waveguide covered by a thin gold layer. The sensing analysis is performed by equally splitting the input light into two arms, allowing the sensor to be calibrated by its reference arm. Two different 1 × 2 power splitter configurations are presented: a directional coupler and a multimode interference splitter. The waveguide sidewall roughness is considered as the major negative effect caused by deposition imperfections. The simulation results show that plasmonic effects can be excited in the interferometric waveguide structure, allowing a sensing device with enough sensitivity to support the functioning of a bio sensor for high throughput screening. In addition, the good tolerance to the waveguide wall roughness, points out the PECVD deposition technique as reliable method for the overall sensor system to be produced in a low-cost system. The large area deposition of photonics structures, allowed by the PECVD method, can be explored to design a multiplexed system for analysis of multiple biomarkers to further increase the tolerance to fabrication defects.

A novel low cost texturization method for large area commercial mono-crystalline silicon solar cells

2006 ◽  
Vol 90 (20) ◽  
pp. 3557-3567 ◽  
Author(s):  
U. Gangopadhyay ◽  
K.H. Kim ◽  
S.K. Dhungel ◽  
U. Manna ◽  
P.K. Basu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Crystalline Silicon ◽  
Low Cost ◽  
Silicon Solar Cells ◽  
Large Area ◽  
Crystalline Silicon Solar Cells

Recasting Ni-foam into NiF2 nanorod arrays via a hydrothermal process for hydrogen evolution reaction application

2021 ◽  
Author(s):  
Nanasaheb M. Shinde ◽  
Siddheshwar D. Raut ◽  
Balaji G. Ghule ◽  
Krishna Chaitanya Gunturu ◽  
James J. Pak ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Nickel Foam ◽  
Hydrothermal Process ◽  
Reduction Process ◽  
Nanorod Arrays ◽  
Ni Foam

A promising electrode for hydrogen evolution reaction (HER) has been prepared via a reduction process to form NiF2 nanorod arrays directly grown on a 3D nickel foam.

scholarly journals Superhydrophobicity and Durability in Recyclable Polymers Coating

2021 ◽  
Vol 13 (15) ◽  
pp. 8244
Author(s):  
Francesca Cirisano ◽  
Michele Ferrari
Keyword(s):  
Thermal Treatment ◽  
Superhydrophobic Surface ◽  
Low Cost ◽  
Spray Coating ◽  
Large Area ◽  
Average Roughness ◽  
Water Contact ◽  
Alkaline Environments ◽  
Fine Control ◽  
Recycle And Reuse

Highly hydrophobic and superhydrophobic materials obtained from recycled polymers represent an interesting challenge to recycle and reuse advanced performance materials after their first life. In this article, we present a simple and low-cost method to fabricate a superhydrophobic surface by employing polytetrafluoroethylene (PTFE) powder in polystyrene (PS) dispersion. With respect to the literature, the superhydrophobic surface (SHS) was prepared by utilizing a spray- coating technique at room temperature, a glass substrate without any further modification or thermal treatment, and which can be applied onto a large area and on to any type of material with some degree of fine control over the wettability properties. The prepared surface showed superhydrophobic behavior with a water contact angle (CA) of 170°; furthermore, the coating was characterized with different techniques, such as a 3D confocal profilometer, to measure the average roughness of the coating, and scanning electron microscopy (SEM) to characterize the surface morphology. In addition, the durability of SH coating was investigated by a long-water impact test (raining test), thermal treatment at high temperature, an abrasion test, and in acidic and alkaline environments. The present study may suggest an easy and scalable method to produce SHS PS/PTFE films that may find implementation in various fields.

scholarly journals Effects of Annealing Temperature on the Oxygen Evolution Reaction Activity of Copper–Cobalt Oxide Nanosheets

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 657
Author(s):  
Geul Han Kim ◽  
Yoo Sei Park ◽  
Juchan Yang ◽  
Myeong Je Jang ◽  
Jaehoon Jeong ◽  
...  
Keyword(s):  
High Activity ◽  
Cobalt Oxide ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Low Cost ◽  
High Surface ◽  
High Surface Area ◽  
Cobalt Hydroxide ◽  
Ni Foam ◽  
Electron Conduction

Developing high performance, highly stable, and low-cost electrodes for the oxygen evolution reaction (OER) is challenging in water electrolysis technology. However, Ir- and Ru-based OER catalysts with high OER efficiency are difficult to commercialize as precious metal-based catalysts. Therefore, the study of OER catalysts, which are replaced by non-precious metals and have high activity and stability, are necessary. In this study, a copper–cobalt oxide nanosheet (CCO) electrode was synthesized by the electrodeposition of copper–cobalt hydroxide (CCOH) on Ni foam followed by annealing. The CCOH was annealed at various temperatures, and the structure changed to that of CCO at temperatures above 250 °C. In addition, it was observed that the nanosheets agglomerated when annealed at 300 °C. The CCO electrode annealed at 250 °C had a high surface area and efficient electron conduction pathways as a result of the direct growth on the Ni foam. Thus, the prepared CCO electrode exhibited enhanced OER activity (1.6 V at 261 mA/cm2) compared to those of CCOH (1.6 V at 144 mA/cm2), Co3O4 (1.6 V at 39 mA/cm2), and commercial IrO2 (1.6 V at 14 mA/cm2) electrodes. The optimized catalyst also showed high activity and stability under high pH conditions, demonstrating its potential as a low cost, highly efficient OER electrode material.

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