Why does my Au/Si substrate immersed in an ethanolic solution of trichloro perfluorooctyl silane end up with the Si region becoming hydrophilic?

The substrate consists of regions of patterned Au on Si. This was cleaned with piranha solution, rinsed in DI water, then blow dried with N2. The solvent was 200 proof (anhydrous) ethanol, and...

02 March 2020 270 1 View

Why does my dichloromethane solution turn cloudy after a while?

Using DCM as a solvent for functionalizing a gold/silicon substrate with a self assembled monolayer by immersion. I noticed that after while, the solution is turning cloudy. Why does that happen?

01 February 2020 7,019 3 View

Comparing XRD and EBSD imaging results for a Pt film?

I'm trying to understand some XRD and EBSD images I obtained for Pt films that were deposited and annealed under different conditions. In the attached image, there are four sets of XRD/EBSD...

03 April 2019 7,952 1 View

Recovering native platinum surface after O2 plasma treatment?

Hi there, I have some evaporated planar platinum electrodes that have been exposed to oxygen plasma, which may have caused some oxidation of the surface. Are there any treatments (chemical,...

06 July 2018 5,349 4 View

Unexpected peaks in cyclic voltammagram after long conditioning?

Hi there, I'm running consecutive cyclic voltammetry measurements on Pt and Au electrodes, starting with a 'fast' scan (1 mV/s), followed by a long conditioning scan (20h), followed by 2nd...

13 June 2018 6,077 3 View

Unexpected peaks in cyclic voltammagram after long conditioning?

Hi there, I'm running consecutive cyclic voltammetry measurements on Pt and Au electrodes, starting with a 'fast' scan (1 mV/s), followed by a long conditioning scan (20h), followed by 2nd...

05 June 2018 4,169 4 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

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 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

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 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

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