How to calculate the number of Si and Au atoms in Si (111) and Au (111)?

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Determination of wavelength in Raw effluent?

Is there a procedure to determine the wavelength of an industrial untreated raw effluent using spectrophotmeter

24 February 2020 1,931 3 View

PEG-400 or PEG-4000 can be used as an alternative to PEG-1000 ?

I use PEG-1000 (poly ethylene glycol) in my synthesis process, but I only have PEG-400 and PEG-4000. So, what is an alternative to PEG-1000 ?

19 February 2020 2,142 3 View

Why is there an unrealistically low PM2.5 concentration estimated using WRF-Chem V3.9.1?

I am conducting experimental simulations to study the PM 2.5 concentration.I have tried several chemistry options ranging from RADM2 MADE/SORGAM to MOZCART aerosol chemistry. The simulation...

21 October 2019 8,154 4 View

What are all the possible reasons for Spontaneous symmetry breaking in a double quantum well system?

Dear frnds, From my point of view SSB is happening due to following reasons in double quantum wells. 1. Due to variational technique 2. symmetry in envelop function and...

19 October 2019 6,248 2 View

Can we consider hemagglutination assay for dengue virus as a quantitative method???

For a pure virus, HA can be considered as a way of representing their titre. even though it is cost effective and less labor intensive, it is less concerned. Kindly guide me in this matter.

04 July 2019 3,881 1 View

What is the significance of size dependent dielectric screening in optimizing excitonic properties?

Mott-Wannier excitons are formed in a semiconductor material as a result of light-matter interactions. However, their delocalizing properties inside the crystal induce screening effects in their...

10 February 2019 6,737 1 View

What approach can be used to teach fraction concepts and the approach need to be based on constructivism theory?

Hi I need help for my thesis. My thesis is about teaching fraction concepts for primary pupils and I struggling to identify the appropriate constructivism learning approach.

17 June 2018 5,152 8 View

How can I convert load vs time curve to load vs displacement curve?

I am doing project in crash box, Experimental result getting only load vs time curve and acceleration vs time curve. i want to get a result in load vs displacement curve and stress vs strain...

11 September 2016 1,414 3 View

As a Nuclear Engineer how I can contribute in particle physics research at CERN?

I've a undergraduate in Physics

05 June 2016 969 4 View

Which software to use to draw ray tracing using coordinate transformation?

Hi, in optical transformation, I was trying to draw the transformed coordinate figures (for concentrator and cloak) as in doi:10.1016/j.photonics.2007.07.013,. I tried with comsol 4.4, I was able...

23 March 2016 8,460 1 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

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

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

How to predict the reaction pathway for electro organic synthesis?

Can anyone recommend some any software/models available that can predict substance reactivities and the reaction yield under a specific set of reaction conditions process and proposing pathways to...

17 February 2021 2,383 3 View

Selecting referencing electrodes for electrochemical experiment?

I have several questions, What reference electrodes is commonly used for aqueous electrochemical systems? What reference electrodes is commonly used for electrochemical systems which used...

06 February 2021 6,389 5 View

What are the factors on which exchange current density of an electrode depends, and how can they be predicted?

While surface roughness is an obvious factor, this is not what is exactly asked. Rather, periodic variation of exchange current density (of an electrode) with solution chemistry (of electrolyte)...

30 January 2021 4,886 5 View

Why sometimes current- voltage plot in chemiresistors/ FET does not pass through the origin?

I am trying to measure resistance from I-V curve from a chemiresistor/ FET sensor with a keithly sourcemeter. The substrate is soaked/ wet with protein and phosphate buffer only. But the I-V line...

24 January 2021 8,009 3 View

What is the difference between Pt(100), Pt(110) and Pt(111)?

For example: In an electrochemical cell utilising a platinum (Pt) anode, what is the difference and what kind of implications would be expected from using either Pt(100), Pt(110) or Pt(111)?

20 January 2021 309 5 View

Electroactive surface area of bare and the synthesized material?

For electrochemical sensors, the electroactive surface area (ESA) show higher value for the working material as compared to bare (reported in several papers). My bare electrode is FTO and working...

17 January 2021 7,220 3 View

Colorimteric and enzymatic method ?

First of all, thank you for your consideration about this question. I've been working on development of in-vitro diagnostic medical device as research engineer since 2013. Especially, my major is...

14 January 2021 3,885 4 View

Ahmed Bahloul

you can use lot of techniques,

- SIMS (Secondary Ionic Mass Spectroscopy)

- XPS (X ray photon Spectroscopy)

- SDX (or EDX) (X ray Dispersive Spectroscopy)

- maybe RPE

Yong Guo

I think the number of atoms in some face depends on the area of the face. just assume one face, and then calculate.