What is the sample preparation technique for carbon samples?

I have made some carbon samples both CNTs and also activated carbons. How to we get clean SEM images. What is the sample preparation required? What is the sputtering time or cycles to be employed?

08 September 2018 1,379 5 View

Can Lithium metal be used as reference electrode?

Can litium which is very reactive be used as an reference electrode in an electrochemical process. If so how do we use it as a counter and reference electrode. Also handling this setup does it...

06 July 2016 7,053 2 View

Can any one mention reactions which can be monitored by GC?

I would like to monitor ester hydrolysis with GC. can any one help me by pointing out if there are any reactions that can be done so. Thank you.

06 July 2016 9,923 3 View

What are the maximum working potentials for a glassy carbon electrode?

09 October 2015 5,301 3 View

How many equivalents of selenium dioxide are required for oxidation?

I am carrying out the oxidation of benzylic methyl group to carbonyls. I wanted to use SeO2 and so wanted to know how many mole equivalents of it is required to oxidise one mole of methyl group....

04 May 2015 2,278 5 View

What is fluorescent quantum yield and how do you calculate it?

What is fluorescent quantum yield and how do you calculate it? Are there many procedures and if there are which one is more accurate?

02 March 2015 4,812 10 View

What is the best procedure to oxidize 2-methylpyridine to the corresponding acid in high yield?

As there are many procrdures...

31 December 2014 2,055 2 View

How to quantify carbon deposition on CuZnAl catalyst?

Dear All, I want to quantify carbon deposition on the surface of the CuZnAl catalyst. I have tried thermogravimetric analysis, but I've got weight gain as the active Cu- get oxidised. Does anyone...

01 March 2021 1,907 3 View

Why Trivalent chromium start precipitating above PH 5 ? Moreover discuss difference between adsorption of chromium and precipitation of chromium ?

I am a student of MS Environmental Engineering and started my research phase. I am working on metal removal ( chromium iii ) by using activated carbon prepared from the agricultural feedstock. So...

01 March 2021 5,475 2 View

Adherance of Polyaniline coating over stainless steel?

Is the electropolymerisation of polyaniline coating over stainless steel (SS) via Cyclic voltammetry technique is really adherant? Else how to improve the adhesion of the coating, whether any...

01 March 2021 8,220 2 View

Is there a method of determining feed digestibility without the need to re-pellet the feed?

I am aiming to determine the ADC values of a commercial fish feed, but I do not have a steam pelleter or extruder available to me. Ideally, the pellets could be coated with some inert marker....

28 February 2021 7,967 3 View

How to immerse bricks in wax ( for coating ) ?

Do we immerse the bricks horizontally or vertically ? #bricks#waterproofingsurface#civil#engeenering#chemicalengineering#wax#parafinwax

28 February 2021 6,685 2 View

For gelatin coating for culturing HUVEC.Should the gelatin be made in sterile water or PBS? Do I need to autoclave the gelatin soln after making it ?

I want to use 0.1% gelatin. Should that be made in PBS or sterile water? Should I autoclave the gelatin soln after making it in water/PBS?

28 February 2021 274 2 View

Why is my platinum counter electrode getting dirty during electrodeposition?

I am conducting anodic electrodeposition of MnO2 onto a stainless steel substrate, using a platinum strip as a counter electrode. This is done galvanostatically, with the current held between 5...

27 February 2021 1,829 3 View

What pH condition required to coat APTES on silica coated Fe3O4?

It's a hydrolysis reaction, which may produce by either acid or base-catalyzed reaction. so can anybody help me with this, which condition is suitable for this reaction?

26 February 2021 1,760 8 View

How can I assign a velocity along one direction to CO2 molecules in a molecular dynamics simulation using GROMACS?

Dear all, I am trying to perform a MD simulation about the interaction between CO2 and a polymer. I create my model, solvate it and perform the NVT and NPT equilibration. Now I am not able to...

26 February 2021 10,014 3 View

What is the best surface to culture cells isolated from a skin biopsy?

Hello, recently I am having some difficulties with maintaining the cell culture of primary cells isolated from a skin biopsy (normal and malignant). The coating of culture plates with Matrigel (a...

26 February 2021 6,151 2 View