I am using PVP as a capping agent for nanoparticle preparation. How I remove PVP after formation of nanoparticle, which is supported by C material?

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Does size of metal particle always decrease with increasing of capping agent to any amount?

In the preparation of metal nanoparticle the particle size decrease with increasing capping (PVP) agent up to some value, but the size of the particle increase after adding more capping agent....

11 December 2018 5,781 4 View

I analyzed the L2 and L3 edge of AuCu nanoparticles using Au foil as a reference for Au nanoparticle. My Au NP intensity is higher than Au foil. Why?

For L2 and L3 edge analysis of Au from AuCu alloy the intensity of my Au nano-particle is higher than the reference (Au foil) it is a little strange for me. Any one reason out this case? Thanks a lot!

09 October 2017 554 2 View

What is the advantages of non-porous substrates over porous one for the same catalysts in electro-oxidation of glycerol? Any one help me, thank you

Is there a possibility that efficiency of electro-oxidation would better on flat/non-porous substrate than porous substrate for the same catalyst? I used relatively non-porous substrate for my...

05 June 2017 1,333 2 View

Must the geometrical surface area of the working electrode(sample) be less than electrochemical surface area?

I determine the surface area of my electrode using Randles Sevcik equation, however this surface area is less than the geometrical/physical surface area of the electrode. What is this means? Does...

11 December 2016 5,613 11 View

Is that using high number cycle during electrodeposition of metals via cyclic voltammetry always give high amount metals deposited?

I am depositing Ni on the home made electrode/substrate via cyclic voltammetry. During deposition at high number of cycles some white thing(a big suspension) is releasing from the substrate. Is...

08 September 2016 701 11 View

What is the main purpose of using counter electrode in electro-oxidation reaction?

Short answer

02 March 2016 480 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 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

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 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

Can chitosan alone can act as a reducing agent for Cu(0) nanoparticle sythesis?

[Synthesizing Cu nanoparticles without using chemical reductants]

01 March 2021 8,359 1 View

How Can I bring as much common elements in steel as possible to calculate stable phase(s) in OpenCalphad?

As I was tweaking step-by-step OpenCalphad6 Macros step1.ocm involving phase and thermal property calculation of a High-speed steel, I could not incorporate more than 6 elements in the steel...

01 March 2021 8,840 1 View

How can you bring two structures together to create an adhesive bond in LAMMPS?

I have created an Ice 1h crystalline structure and an Aluminium substrate structure and equilibrated both at 250K. Now I need to bring them together in a way that an adhesive bond is created....

01 March 2021 3,325 2 View