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

How to coat activated carbon on copper plate?

how do we coat activated carbon on to copper plate for studying its cpacitance? Are there any other methods?

02 March 2016 4,660 4 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

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 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 production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Chlorinated organic formation in odor control scrubbers using hypochlorite?

I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...

03 March 2021 3,661 2 View