Experimental and computational characterization of phase transitions in CsB3H8

2021 ◽  
Author(s):  
Olena Zavorotynska ◽  
Magnus Helgerud Sørby ◽  
Jenny Grazia Vitillo ◽  
Stefano Deledda ◽  
Christoph Frommen ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Energy Storage ◽  
Cation Conductivity

Metal hydroborates are versatile materials with interesting properties related to energy storage and cation conductivity. The hydrides containing B3H8─ (triborane, or octahydrotriborate) ion, have been at the center of attention...

Thermal characterization of ABS-Graphene blended three dimensional printed functional prototypes for electro chemical energy storage

2018 ◽  
Vol 1 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Kamaljit Singh Boparai ◽  
Rupinder Singh
Keyword(s):  
Energy Storage ◽  
Structural Changes ◽  
Fused Deposition Modeling ◽  
Morphological Changes ◽  
Three Dimensional ◽  
Thermal Characterization ◽  
Chemical Energy ◽  
Flow Index ◽  
Fused Deposition

This study highlights the thermal characterization of ABS-Graphene blended three dimensional (3D) printed functional prototypes by fused deposition modeling (FDM) process. These functional prototypes have some applications as electro-chemical energy storage devices (EESD). Initially, the suitability of ABS-Graphene composite material for FDM applications has been examined by melt flow index (MFI) test. After establishing MFI, the feedstock filament for FDM has been prepared by an extrusion process. The fabricated filament has been used for printing 3D functional prototypes for printing of in-house EESD. The differential scanning calorimeter (DSC) analysis was conducted to understand the effect on glass transition temperature with the inclusion of Graphene (Gr) particles. It has been observed that the reinforced Gr particles act as a thermal reservoir (sink) and enhances its thermal/electrical conductivity. Also, FT-IR spectra realized the structural changes with the inclusion of Gr in ABS matrix. The results are supported by scanning electron microscopy (SEM) based micrographs for understanding the morphological changes.

Modulated band structure and phase transitions in calcium hafnate titanate modified silver niobate ceramics for energy storage

2021 ◽  
pp. 131047
Author(s):  
Yonghao Xu ◽  
Zhendong Yang ◽  
Kun Xu ◽  
Yuecong Cao ◽  
Ye Tian ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Energy Storage ◽  
Band Structure

Unusual doping induced phase transitions in NiS via solventless synthesis enabling superior bifunctional electrocatalytic activity

2020 ◽  
Vol 4 (10) ◽  
pp. 5132-5143
Author(s):  
Ginena Bildard Shombe ◽  
Malik Dilshad Khan ◽  
Asma M. Alenad ◽  
Jonghyun Choi ◽  
Tenzin Ingsel ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Energy Storage ◽  
Transition Metal ◽  
Electrocatalytic Activity ◽  
Energy Generation ◽  
Metal Sulfides ◽  
Transition Metal Sulfides ◽  
Energy Storage Applications ◽  
Solventless Synthesis

Transition metal sulfides have been investigated as promising bifunctional materials for catalytic energy generation and energy storage applications.

scholarly journals Fabrication and Characterization of Laser Scribed Supercapacitor Based on Polyimide for Energy Storage

2018 ◽  
Vol 778 ◽  
pp. 181-186 ◽  
Author(s):  
Tayyaba Malik ◽  
Shayan Naveed ◽  
Muhammad Muneer ◽  
Mohammad Ali Mohammad
Keyword(s):  
Energy Storage ◽  
Research Work ◽  
Electrical Energy ◽  
Energy Storage Devices ◽  
Super Capacitor ◽  
Storage Devices ◽  
Voltage Sweep ◽  
Tremendous Amount ◽  
The Stability

Recently, supercapacitors have attracted a tremendous amount of attention as energy-storage devices due to their high-power density, fast charge–discharge ability, excellent reversibility, and long cycling life. In this research work, we demonstrate a laser scribed super capacitor based on polyimide (PI) substrate for the storage of electrical energy. PI substrate of thickness 200μm and area 1cm × 1cm was reduced by a laser engraver with a 450 nm wavelength in the form of stackable supercapacitor electrodes. Although, PI itself exhibits non-conductive behavior; however, by laser irradiation we change the surface properties of PI and reduce its resistance. The chemical property of irradiated PI was characterized with XRD where the carbon peak was observed at 2*theta = 25.44, which confirms the reduction of PI material in to a graphene-like substance. The electrical conductivity was analyzed with a probe station and observed to be 1.6mS. Two conductive regions were assembled into a capacitor device by sandwiching a PVA/H3PO4 electrolyte in between. During the charging and discharging characterization of the capacitor device, current density was observed to be 1.5mA/cm2. Capacitance versus voltage analysis was carried out and the device showed 75mF/cm2 against a voltage sweep of ±2V. The galvanostatic charging and discharging curve shows a symmetric behavior with respect to time exhibiting the stability and durability of the device.

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