How do calculate adsorption strength from IR data?

How can I determine the adsorption strength or Heat of absorption of CO on a metal from FTIR data.

02 March 2016 4,195 4 View

Does the method of synthesis affect the type of OH groups on the surface of the resulting oxide?

I have prepared an oxide of different structures (e.g. nanocubes, nanobelt, rods, etc.) using different preparation techniques. I want to modify the surface of these materials with silanes. The...

10 November 2015 744 3 View

How to support Co3O4 nano plates on Carbon?

Which form of carbon support could be best for support Co3O4 nanoparticle? What are the best ways to activate the carbon support if need be

09 October 2015 2,328 3 View

How to calculate metallic dispersion?

I have carried out a hydrogen chemisorption experiment and have determined, from the linearized Langmuir isotherm, the volume of hydrogen required for mono layer coverage (i.e 5.5 ml/g). How do I...

31 December 2013 478 8 View

Sem/eds

1. If I have a sample of a nanosized material and modify its surface with some ligands [e.g. Ti(OCH2CH2CH3)4] and do EDS on the modified sample, is the elemental ratio correspond the ratio of...

07 August 2013 8,775 11 View

How to improve dispersion of Co3O4 nanoparticles on SiC?

I have Co3O4 nanoparticles and would like to disperse them on SiC. I have tried doing so in various solvents such as water, dilute HNO3 ethanol and I have obtain poor dispersion. Can anyone...

05 June 2013 2,646 5 View

Activation Energy

How can Activation Energy be calculated from a TPR profile data of a sample treated at constant heating rate. Does a shift in a TPR peak imply change in activation energy if the shift occurs at...

05 June 2013 7,861 10 View

How can I remove a surfactant from nanoparticles?

I have synthesized Co3O4 in the presence of SDS and would like to know a simple method to remove it from my nanoparticles?

03 April 2013 4,332 43 View

Surface silylation

At what region of the IR spectrum can I find the Co-O-Si bands? How strong are the bands?

11 December 2012 7,217 3 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

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

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View