Which books would be recommended for solvent selection?

Hi, I'm wondering which reference books would be believable? I deal with copolymer so that I sometimes need to selectively remove only one phase. It seems like that I cannot avoid to select...

10 November 2018 6,675 0 View

How can target molecular weight of RAFT reaction depend on CTA instead of Initiator?

I've studied and read the principle of RAFT and its mechanism. By being fragmented and added, the rate of polymerization gets slow under the equilibrium between active and dormant species. But,...

09 October 2018 3,904 0 View

What kind of solvents would be promising if I want to selectively dissolve PS out of PS-PMMA??

Hi, I wonder a specific solvent that can dissolve only PS out of PS-PMMA. Of course, solubility depends on molecular weight of polymer, but if it can be excluded for an ideal situation, I take...

09 October 2018 4,423 4 View

How can target molecular weight of RAFT reaction depend on CTA instead of Initiator?

I've studied and read the principle of RAFT and its mechanism. By being fragmented and added, the rate of polymerization gets slow under the equilibrium between active and dormant species. But,...

09 October 2018 8,498 0 View

Hydrolysis stability between urethane and ester in base condition?

Hello, finally I am asking you some questions about the hydrolysis stability between urethane and ester groups. Let me clarify my question. I would like to compare hydrolysis stability among...

01 February 2018 1,847 0 View

Why only a half (discharge) is used in calculation of specific capacitance?

To begin with, thank for being here to answer me. My question is 1. why is only a half (discharge part in galvanostatic charge-discharge measurement) is used when we calcaulte specific...

09 October 2016 6,620 2 View

Can you let me know the relationship b/w crystallinity and shift in XRD, Raman, FT-IR and others?

First, really thank you for reading my question. Like I said, I really wonder what kind of relationships b/w shift and crystallinity of some substances in those intruments. Please, answer me if...

09 October 2016 9,117 3 View

Why are Fe3O4 particles differently affected by cyclic voltammetry and galvanostic charge discharge cycles?

Firstly, thank you for openning my question. These days, I'm measuring capacitive behavior of Fe3O4 and Fe3O4-modified electrolytes. As people say, metal oxides are senstive to bulk expansion...

09 October 2016 8,695 2 View

Can you let me know how to calculate wave impedence?

I added the equation about it here.I'm stopped since I failed to calculate wave impedence.Especially, relative permittivity and relative permeability are big obstacles for me to solve.What I'd...

08 September 2016 2,185 2 View

Can you let me know how to calculate wave impedence?

08 September 2016 6,873 2 View

What are the new 2D nanomaterials were used for Silver nanoparticles stabilization?

In the stabilization of AgNPs are vital in current research interest. However, some of the 2D nano-materials like graphene oxide, MoS2, etc... previously used to stabilize it. But still they shown...

01 March 2021 2,207 3 View

How does charge on working electrode changes with rising potential?

During performing CV of a GCE or modified GCE, we rise the potential in the first half of the cycle and reduce it in reverse half. During the first half, what is the nature of charge on GCE or...

25 February 2021 7,994 3 View

How to delaminate copper in water-based anodes?

Hello everyone, I'm looking for a way to delaminate copper current collector of water-based anodes in Li-ion batteries without damaging the graphite film. I tried different materials such as HNO3...

24 February 2021 3,785 3 View

Thermal reduction of graphene oxide.?

I am trying to reduce graphene oxide by thermally but I have no proper information regarding this. Can any one help me regarding the details about temperature and time for the reduction of...

23 February 2021 4,155 4 View

What kind of steel moulds are used for hot pressing metal powders?

My main concern is that the metal powders should not weld to the mold surface and I should easily be able to eject out the pressed samples. I am looking for alternative for graphite moulds. The...

22 February 2021 2,965 4 View

Is there an ideal incubation time of RGO-modified SPCE before subsequent use, i.e., electrochemical characterization or further modification?

I notice that upon washing and air-drying of my RGO/SPCE surface and characterizing again via DPV, the current response towards ferricyanide probe significantly decreases. My worry is that the...

22 February 2021 5,324 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

Which compound is getting oxidized during bulk electrolysis with TFAA?

The experiment is really simple. When I do a bulk electrolysis with 1% TFAA (ACN solution) to get dihydrogen, what is going to be oxidized? (working electrode graphit, counter electrode platinum,...

18 February 2021 4,430 1 View

What is the best substrate for exfoliating few layers of hexagonal boron nitride (hBN) using traditional scotch tape method?

Unlike graphene, it is usually very difficult to exfoliate few layers (~10 nm thick) of hBN on SiO2 substrate due to lip-lip interaction at the edges. Au substrates have been proven very useful...

16 February 2021 2,635 2 View

How can I calculate teh crystallinity degree of graphene oxide?

I had treat my XRD diffraction pattern by Highscore to calculate the crystallinity degree Xc and I have the formula but I dont no the 2Theta of Ac and Aa to calculate Xc. Is it like polymers...

10 February 2021 6,305 5 View