How to calculate charge storage in battery-supercapacitor hybrid device?

11 December 2017 4,775 5 View

How to explain the presence of three peaks in my LaMnO3 supercapacitor electrode?

11 December 2016 1,632 6 View

Why Precursors of perovskite (such as LaMnO3 after obtaining metal hydroxide) should be calcined in oxygen atmosphere at high temperature?

09 October 2016 6,263 2 View

Why is capacitace of solid state supercapacitor getting low even when I generate pores in graphene electrode?

01 February 2016 7,211 8 View

How do I explain the differences of XRD Peak position, intensities and peak broaden for the graphite and graphene oxide materials?

10 November 2015 386 9 View

Can someone give me more clarification about different between nanoparticle and nanocomposite?

Can someone give me more clarification about different between nanoparticle and nanocomposite.Also I want to know the role for obtaining Graphene nanocomposite as space (spacer to prevent...

07 August 2015 3,070 2 View

Are there any new ideas to get graphene from graphite by fast and fully scalable methods?

Hi there Is there any one tell me that how to get graphene from graphite by fast and fully scalable methods, because as I know the old methods are very costly and also time consumable. I want to...

05 June 2015 4,467 6 View

How can I find controllable parameters that may be affecting the performance of a graphene nanocomposite supercapacitor?

I'm working in the field of graphene Nano composite as electrode materials for supercapacitor, but until now I didn't obtained sufficient power density by this electrode (graphene nanocomposite),...

11 December 2014 8,553 5 View

Can anyone tell me how to synthesize large-scale bulk nanocrystalline materials, having superior properties and at a reasonable cost?

Recently, large attention was devoted to the research and development of nanostructured materials. However, there are still many difficulties in synthesizing large-scale bulk nanocrystalline...

08 September 2013 8,413 1 View

How to Fit EIS data for pseudocapacitance electrode?

Hello every body. Could anyone help me to fit EIS data (attached file) and also help me to calculate the fitted parameters? Electrode show battery like characteristic behavior as seen from CV and...

01 January 1970 7,338 0 View

What are the new 2D nanomaterials were used for Silver nanoparticles stabilization?

In the stabilization of AgNPs are vital in current research interest. However, some of the 2D nano-materials like graphene oxide, MoS2, etc... previously used to stabilize it. But still they shown...

01 March 2021 2,207 3 View

1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

28 February 2021 3,640 3 View

Thermal reduction of graphene oxide.?

I am trying to reduce graphene oxide by thermally but I have no proper information regarding this. Can any one help me regarding the details about temperature and time for the reduction of...

23 February 2021 4,155 4 View

Is there an ideal incubation time of RGO-modified SPCE before subsequent use, i.e., electrochemical characterization or further modification?

I notice that upon washing and air-drying of my RGO/SPCE surface and characterizing again via DPV, the current response towards ferricyanide probe significantly decreases. My worry is that the...

22 February 2021 5,324 3 View

How can I measure the thickness of thin layers deposited on textured glass susbtrates?

I want to measure the thickness of aluminum oxide and titanium oxide layers deposited on textured glass substates. The layer thicknesses are typically below 100nm.

21 February 2021 5,465 4 View

What is the best etching method for Mg-Ca alloy?

I have used Picral etchant (4.2 g Picric acid, 10 mL Acetic acid, 70 mL Ethanol, 10 mL distilled water) but it didn't work. Is there any alternative?

21 February 2021 2,558 5 View

What is the best substrate for exfoliating few layers of hexagonal boron nitride (hBN) using traditional scotch tape method?

Unlike graphene, it is usually very difficult to exfoliate few layers (~10 nm thick) of hBN on SiO2 substrate due to lip-lip interaction at the edges. Au substrates have been proven very useful...

16 February 2021 2,635 2 View

How can I calculate teh crystallinity degree of graphene oxide?

I had treat my XRD diffraction pattern by Highscore to calculate the crystallinity degree Xc and I have the formula but I dont no the 2Theta of Ac and Aa to calculate Xc. Is it like polymers...

10 February 2021 6,305 5 View

About XRD details of pristine and doped RGO?

Hi Can anyone please help me know the XRD details of reduced graphene oxide, Nitrogen doped reduced graphene oxide, Sulphur doped reduced graphene oxide, Nitrogen and Sulphur co-doped reduced...

08 February 2021 3,033 3 View

What is the difference between Graphene Oxide and Expanded Graphite?

What are the main differences between Graphene Oxide and Expanded graphite, in terms of surface functionalities, conductivity, d-spacing and other features? Is the term expanded graphite...

06 February 2021 9,810 4 View