Why people focus more on N-doped carbon, compared with O-doped carbon?

Carbonaceous materials have been widely used in various applications, such as adsorption of organic contaminants, electrodes of various batteries and super-capacitors, OER catalyst, ORR catalyst,...

09 October 2018 3,988 0 View

Capacitive Deionization: Some basic questions?

Hello everyone, I am a new learner in the field of CDI. I read some review papers on CDI recently but still have some questions. Hope I can get some comments from you. (1) Why carbon anode: As I...

06 July 2018 8,275 0 View

What is the reactive sites for adsorption of organic pollutants by activated carbon?

Hi dear all, Recently, I am doing research using activated carbon (AC) cathode to reduce O2 for H2O2 generation. However, I found after saturated by reactive blue 19 (a dye), the performance of...

01 February 2018 3,885 7 View

How to calculate current density of carbon foam electrode?

Dear all, In my experiment, I use a carbon foam electrode (2cm*3cm), when I calculate the current density, should I use 6 cm^2 as electrode area, or estimate the real surface area? Thanks in...

01 February 2018 8,118 0 View

Is this graphene oxide solution?

Hello everyone, Recently, when I used anodization to modify the graphite felt electrode, I found the solution changed to yellow, some unknow power was also generated and floating on the liquid...

01 February 2018 8,015 7 View

Can activated carbon replace Fe2+ in Fe2+/sulfite/O2 system for sulfate radicals generation?

Sulfate radical based advanced oxidation process is a hot topic in environmental remediation. Usually, it was generated by activation of persulfate or peroxymonosulfate. Recently, transition...

31 December 2017 4,104 0 View

Electro-Fenton process, why use DC power? Why not use AC power or pulsed power?

For electrochemistry, why do people just use DC(direct current) power? Why not use AC(alternating current)? I found some researches focusing on pulsed power. One reason is that for most...

11 December 2016 6,545 1 View

In recent years, H2O2 electro-generation in electrolysis cell is gaining much attention. By CMOSOL, can we simulate H2O2 and Fe2+ distribution?

Thanks for all your time. Here, I have two questions: (1) Some researchers found that after electro-generation, some H2O2 diffuse to bulk solution, some would transfer to H2O on cathode surface....

10 November 2016 2,774 3 View

In electrolysis cell, Fe3+ could be reduced to Fe2+ in cathode zone. However, Fe2+ can not transfer to bulk solution, is this concept right?

In electro-Fenton system, we would like Fe2+ could be effectively regenerated and function as a catalyst. However, it is known that as a positive ions, cathode would absorb Fe2+, resulting in a...

09 October 2016 4,427 4 View

For elctro-Fenton system, if a modified cathode can capture O2 from air?

For elctro-Fenton system, if a modified cathode can capture O2 from air when aeration, will it be an innovative idea and make the system more economic since air is cheaper than pure O2? Is it...

01 January 1970 9,764 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