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《超细氢氧化锶在电池电容方面的应用》
2020-12-24
 
我公司有特制1um,不同于市场上的颗粒氢氧化锶。更适合电池方面使用
 

 

 

Tuberose surface architecture of Sr(OH) 2 film as supercapacitive electrode
 
 
 


氢氧化锶薄膜超电容电极的表面结构

 
 
 
 

作者背景:

  • Department of Physics, Motilal Nehru National Institute of Technology, Allahabad 211004, India
  • Nano Materials and Device Laboratory, Department of Physics, Visvesvaraya National Institute of Technology, Nagpur, M.S., 440 010, India
 
 
原文摘要:The first report, on tuberose surface morphology of strontium hydroxide (Sr(OH) 2 ) has been achieved on stainless-steel (SS) substrate in the form of thin film by easy, economical efficient and less time consuming successive ionic layer adsorption and reaction (SILAR) technique at room temperature. X-ray diffraction analysis reveals polycrystalline nature of film with orthorhombic crystal structure. Fourier Transmission Infrared Spectroscopy (FTIR), Energy-dispersive X-ray spectroscopy (EDS) and Raman analyses reveal the composition and phase purity of the active material. The morphology of the prepared sample was characterized by Field Emission Scanning Electron Microscopy (FE-SEM), Higher Resolution Transmission Emission Microscopy (HR-TEM) which confirms the tuberose morphology of the Sr(OH) 2 thin film. Furthermore, tuberose surface architecture has been successfully utilized as supercapacitive electrode with high specific capacity of 413Cg −1 in 1M NaOH aqueous electrolyte at 2Ag −1 current density. Also, the electrode has emerged with 45.95Whkg −1 of energy density and 2.6kWkg −1 as power density at 2Ag −1 current density.
研究要点:                                              • It is the first report on tuberose surface morphology of strontium hydroxide (Sr(OH) 2 ) achieved in thin film form on stainless steel substrate by simple and cost effective successive ionic layer adsorption and reaction method at room temperature without any binder.
• The tuberose morphology exhibits high porosity as it consists of secondary, tertiary and even higher-order branches suitable for the supercapacitive behaviour.
• The Sr(OH) 2 film electrode exhibit the specific capacitance of 413Cg −1 at 2Ag −1 current density in 1M NaOH electrolyte.
• The electrode has high energy density of 45.95Whkg −1 with power density of 2.6kWkg −1 at 2mAg −1 .    
                                                                                                                                                 
 

 

Solid-state symmetric supercapacitor based on Y doped Sr(OH) 2 using SILAR method
SILAR法制备Y掺杂氢氧化锶固态对称超级电容器
 
 

作者背景:

  • Department of Physics, Motilal Nehru National Institute of Technology Allahabad, Prayagraj-211004, India
 
 
原文摘要:Supercapacitor is one of the most promising and emerging type of energy storage devices having the merits of both conventional battery and traditional capacitor. In this regard, we have deposited Yttrium doped Strontium hydroxide thin films on stainless steel substrate with the help of a facile, cost-effective successive ionic layer adsorption and reaction technique at room temperature without using any binder. Doping of Yttrium into Strontium hydroxide enhances both electronic conductivity and electrochemical performance of the electrode for energy storage. Nanorods like structure with the tuberose morphology has been obtained with the help of field emission scanning electron microscopy. The cyclic voltammetry, galvanostatic charge-discharge and electrochemical impedance spectroscopy measurements show the pseudocapacitive battery like response. Among all the synthesised materials, 1.0 at. % Yttrium doped Strontium hydroxide shows a high specific capacity of 705.3 C g −1 at 0.4 mA current rate and stability of ∼82% at 2.5 mA current rate. The prototype light-weight solid-state symmetric supercapacitor device of Yttrium doped Strontium hydroxide electrodes has been fabricated by sandwiching PVA-Na 2 SO 4 gel. Thus, we observe that this device has potential applications for the next-generation cost effective energy storage system.
研究要点:• Y doped Sr(OH) 2 electrode has been prepared using SILAR deposition method.
• The nanorod like structure with tuberose morphology has been observed.
• Enhanced applied potential window for Y:Sr(OH) 2 shows high capacity.
• High stability of 1 at. % Y:Sr(OH) 2 –85% at 2.5 mA current rate.
• A prototype symmetric supercapacitor of Y Sr device has been assembled.
                                                                                                                                                 

 

Low cost efficient Sr(OH) 2 promoted Pd/rGO electrocatalyst for direct alcohol fuel cell  
低成本高效率氢氧化锶促进的Pd/rGO直接醇燃料电池电催化剂
 
 

作者背景:

  • Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
  • Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiatong University, Shanghai, 200240, China
  • Catalysis and Nanomaterials Lab 27, Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
 
 
原文摘要:N/A
                                                                                                                                                 
 
 
 
 
 
 
 
 
 
 
 
 
 
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