I want to decide the optimizing range for the synthesis of my thin films (transition metal oxides and transition metal sulphides) to be used as electrode material in supercapacitors so as to get the best electrochemical performance.
The coulombic efficiency of my supercapacitor device is increasing with the increase in the applied current density of charging-dicharging. Can someone please enlighten me on this trend because...
31 December 2019 4,029 4 View
I have performed XPS analysis of a multilayered thin film. However, the analysis gives a relation between the sputter time and intensity of various elements. Is there any relation or approximation...
03 April 2019 3,323 15 View
I did the CV analysis of my sample (CNT-MoS2 hybrid) at small scan rates (0.1-1 mV/sec). However, my results show no peaks even at the lowest scan rates, and in order to utilize the Dunn's...
11 December 2018 4,872 3 View
I am working on MnS thin film based electrodes. I observed that the specific capacitance of my material decreased with increasing roughness of films. What could the possible reasons behind it?
05 June 2018 8,846 1 View
I have used ITO and metallic foam as current collector to prepare my electrodes (metal sulphide as active material). The specific capacitance is higher for metallic foam due to obvious reasons....
11 December 2017 6,476 4 View
Lately i have been trying to understand my XPS data for WS2 thin films. The elemental scan i obtained for sulphur was in agreement with the previously reported literature. However, the scan for...
10 November 2017 3,195 4 View
I am depositing WS2 thin films using magnetron sputtering to be used as electrode material for supercapacitive application. I have tried various substrates( Stainless steel, ITO) but failed to...
10 November 2017 988 3 View
I have read alot of data however its still confusing for me.
02 March 2017 2,399 9 View
A crude extract of fungal culture using EtOH was subjected to column and TLC and partially purified compound was obtained. UV vis spectrum of the compound/s has max absorbance at 218nm. The...
11 August 2024 9,801 2 View
I tried four trials of the same Copper Phosphides sample in Alkaline medium ( 0.5M KOH) with Hg/HgO reference electrode and Pt as counter electrode. I used 0.001 V/s scan rate for first three...
10 August 2024 3,629 1 View
How can I measure the thickness of thin film by Uv-Vis?
06 August 2024 7,810 3 View
I have been using paraffin, but the deposited ZnO still detach from electrode. What is the best binder to modify graphite paste electrode with ZnO nanoparticles?
03 August 2024 4,624 3 View
Why is TLC not a form of partition chromatography and paper chromatography not a form of absorption chromatography?
03 August 2024 7,035 3 View
for eg. transition shock scale
01 August 2024 5,998 0 View
I need something like Camag's VisionCat software for photodocumentation of TLCs. Could you recommend something?
31 July 2024 8,415 1 View
My screen printed electrode CV is given here. For Nerstean one electron reaction the delta E value should be close to 57 mV and ration of Ic/Ia should be close to 1. I did CV of my screen printed...
30 July 2024 4,671 3 View
We are working on biopolymeric hydrogels. Our system is highly viscous and sticky, and the gel formed are high in strength. We are unable to use pH electrode and pH strip. Please suggest an easy...
30 July 2024 942 2 View
Hello, colleagues. Recently, I have been working on a metal processing simulation with my UMAT in Abaqus. I have outlined the corresponding simulation, but I keep encountering issues that cause...
30 July 2024 7,062 1 View