Why size of the quantum dots increased after attachment on the glassy carbon electrode surface?

Size of the quantum dots is 2.3 nm after attachment on glassy carbon substrate, the size drastically increased to 40 nm. but shape of the Quantum dots is retained. is it due to aggregation?...

02 March 2019 1,954 3 View

Is it possible to get high electrocatalytic activity with electrode with lower electroactive surface area?

is it possible to get high electrocatalytic activity with electrode with lower electroactive surface area? what are the factors affecting electrocatalytic activity of the modified electrodes?

05 June 2018 6,355 0 View

Is it possible C-O bond formation like C-N bond in glassy carbon electrode in the basic condition?

is it possible C-O bond formation like C-N bond in glassy carbon electrode in the basic condition? In alkaline condition is Carbon-Oxygen bond formation possible in glassy carbon electrode?

31 December 2017 1,022 0 View

How to elucidate the structure of carbon dots?

How to find the exact structrue of carbon dots? i want to find the structure of carbon dots precursor for carbon dots was glucose is there any relation between precursor and structure of Carbon...

09 October 2017 8,077 1 View

Doubt in BSA capped Nanoparticles?

05 June 2017 6,152 3 View

How to remove Gold nanoparticles from glassy carbon electrode surface?

04 May 2017 5,962 7 View

Role of laviron equation electrochemical determination of methyl parathion?

04 May 2017 4,375 0 View

Is there any relation between pH and surface area?

02 March 2017 8,256 0 View

Can anyone suggest me negative redox potential biomolecules ?

please help to fine negative redox potential biomolecules like Hydrogen peroxide

01 February 2017 3,076 0 View

How to find the concentration of carbon dots?

How to find the concentration of Carbon dots? from weight of the starting materials how to find the concentration of carbon dots. is there any relation between the total weight of the starting...

31 December 2016 2,820 1 View

Does the pressure(-600 mmHg) affects pH?

When I conducted the degassing experiment using decompression under anaerobic condition(and I used ferrous based chelating agent), the oxidized ferric were observerd. So, could you tell me the...

03 March 2021 4,892 5 View

What is the indication of the absence of peaks in Methanol electrooxidation CV curves ?

I have several question regarding the MOR; hope anyone help me better understand. 1- in CV using (KOH+MEOH) what is the indication of absence of the redox peaks? shouldn't they exist as a sign...

28 February 2021 4,851 8 View

Which database would give me this list of chemical components?

Dear colleagues: I would like to know if anyone knows of a database that gives me the parameters pH, K, K, Mg, P, C, N, Zn, Cu, Ni and Cd of common foods. I find a lot of information of proteins,...

26 February 2021 5,525 3 View

Why is NH4OH added in heavy metals limit test?

The limit test I'm referring to is USP method II. In this procedure you need to dropwise add 6N of NH4OH to the sample until it the pH is alkali. After that you need to dilute and add HOAc until...

23 February 2021 2,049 3 View

Have anyone checked before Cyclic voltammograms of intial ITO substrate and E-teck?

As a beginner in electrochemistry, I tried to obtain cyclic voltamograms of commercial anatase powder deposited on an ITO substrate or on Eteck. After several attempts, I noticed that my cyclic...

23 February 2021 3,175 3 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

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22 February 2021 9,932 11 View

Can anyone help or comment on solubilising chlorobutanol in aqueous injections in minimum time possible?

Please suggest solubilisation of chlorobutanol in injections. Tried pH and high temperature. But the issue is of assay drop. If anyone can suggest any solution. Its a commonly used excipient for...

21 February 2021 7,397 1 View

How to Study a proton NMR of Graphene prepared by Electrochemical Exfoliation technique?

I performed a Proton NMR of graphene powder prepared by electrochemical exfoliation technique. It shows some peaks. But I can't understand it.

21 February 2021 8,947 3 View

What reaction will occur when adding hexamine into ammonium nitrate in an acidic medium?

Hello, I am investigating properties of water in oil emulsion explosives. And adding hexamine (hexamethylenetetramine) into one of the phases that are used to make the emulsion should increase the...

21 February 2021 8,680 1 View