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21 votes
2 answers
644 views

Some materials emit more photoelectrons than others - why?

I've been experimenting with some materials by changing the wavelength of the incident light on the material and detecting photoelectrons, like in the diagram below: I might get a response that looks ...
Tomi's user avatar
  • 590
13 votes
1 answer
9k views

Cyclic Voltammetry - HOMO and LUMO levels

I'm a physicist, so I apologize if these are obvious questions. I've carried out CV measurements on a few different types of material (with a ferrocene reference). I am interested in determining the ...
Tomi's user avatar
  • 590
5 votes
1 answer
2k views

Voltage vs current density - why are both parameters important to control an electrochemical reaction?

In many electrochemistry scholarly articles/studies they talk about certain specific reactions occurring at certain voltage potentials, while in other articles they talk about current density as the ...
Sirozian's user avatar
5 votes
1 answer
230 views

Thought Experiment: Applying a high frequency high voltage to methane

I am in the process of constructing a kitchen waste digester (vegetable/fruits) from which, hopefully, over time adequate methane may be collected to burn. The digester won't be complete for several ...
Everyone's user avatar
  • 904
4 votes
1 answer
194 views

Methods for immobilization of DNA on gold surfaces?

I've been looking for methods for immobilizing 5'-Thiol modified dsDNA on gold slides. Most of what I've come across suggests using DTT followed by a desalting step or using TCEP. However, I haven't ...
Rory Majule's user avatar
4 votes
1 answer
673 views

How do I remove tetrabutylammonium perchlorate from an organic synthesis?

I am trying to remove tetrabutylammonium perchlorate (TBAP) from an organic synthesis where TBAP was used as an electrolyte. I am working with compounds containing the amide group. I have used flash ...
Stressed Chem's user avatar
4 votes
0 answers
1k views

An alternate purification process for sugar separation form bee honey?

Bee honey contains 75% sugars (Fructose, Glucose, Maltose, Sucrose and others), some water and low amount of different compounds (up to 5%) Wiki. Basic purification is done by addition of phosphoric ...
Jaroslav Kotowski's user avatar
3 votes
1 answer
2k views

How does PEDOT:PSS work (mechanism) in Organic Electrochemical Transistors?

I have a question about the fairly fundamental theory behind the application of PEDOT:PSS in an organic electrochemical transistor (OECT) device. As at least I understand it, the ...
Daragh Fogarty's user avatar
3 votes
1 answer
83 views

Carboxyllic acid Test

I'm currently in high school doing a project in chemistry. So I had to make a project where concepts from physical chemistry will be used alongside organic chemistry. After going through my book I ...
Jagan's user avatar
  • 31
3 votes
1 answer
157 views

Electrolysis of benzyl alcohol in methanol

I am conducting following electrochemical experiment on Au wires in organic medium: I suppose the anodic reaction goes through a benzaldehyde intermediate: The cathodic reaction is hydrogen ...
Mäßige's user avatar
  • 383
2 votes
2 answers
2k views

Matching the NMR to a compound

I was given a molecule that I had to identify the NMR of. The molecule is 2-methylpent-1-ene (shown below): The correct NMR spectra for this molecule is: My question is, why is this the right ...
Dave's user avatar
  • 29
2 votes
0 answers
45 views

Why is sodium p-toluenesulfonate used as a supporting electrolyte in polypyrrole synthesis?

First, some preamble: I'm currently working on my thesis, which is about the electropolymerization of polypyrrole onto carbon fiber felt. My methodology, for the most part, follows a paper by one of ...
user136415's user avatar
2 votes
0 answers
59 views

Are there any chemistry research classification systems?

There are research classification systems for mathematics (MSC) and physics (PACS and subsequently PhySH) which help the researchers to navigate through codes composed by letters/numbers made by ...
Tiago Verissimo's user avatar
1 vote
1 answer
107 views

Cannizzaro reaction via electrolysis

As cannizzaro reaction reaction is a redox reaction carried by adding base to an aldehyde, is it possible to carry out the reaction using electrolysis where graphite anode and copper cathode is used. ...
kafka yash's user avatar
1 vote
1 answer
155 views

Standard electrode potentials

I know that many substances have their own standard electrode potential and they can be arranged in he electrochemical series. For example, the standard electrode potential of iron is -0.440V. Since ...
Chemistry is fun's user avatar

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