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Topic: Langmuir Isotherm Equilibrium Constant  (Read 1369 times)

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Offline izmirov

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Langmuir Isotherm Equilibrium Constant
« on: August 09, 2021, 05:09:06 AM »
Hi, I'm researching Langmuir Hinshelwood's kinetic model for sodium borohydride hydrolysis with a cobalt catalyst. I have tried referring to textbooks, ask around, trial and error calculation, but the answers are nowhere close to the example paper. Hope I can get some help to resolve this issue on knowing how to use information from (data obtained through an experiment of hydrogen production rate at different temperatures. Table 1) to get to the graphs Regression vs Ko (equilibrium constant) for optimization Table 4a, Information is given: The H20/Sodium Borohydride molar ratio was equal to 9 (18.9 wt% of sodium borohydride or initial concentration of 6.18 mol/L).

Reaction formula: NaBH + 2H2O > 4H2 + NaBO2

Reference Paper: Langmuir-Hinshelwood kinetic model to capture the cobalt nanoparticles-catalyzed hydrolysis of sodium borohydride over a wide temperature range.
J. Andrieux, U.B. Dermici. P. Miele
2011

Many thanks in advance.


Offline Corribus

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Re: Langmuir Isotherm Equilibrium Constant
« Reply #1 on: August 09, 2021, 08:48:09 AM »
You forgot journal and page/volume numbers. A direct link would be best.
What men are poets who can speak of Jupiter if he were like a man, but if he is an immense spinning sphere of methane and ammonia must be silent?  - Richard P. Feynman

Offline izmirov

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Re: Langmuir Isotherm Equilibrium Constant
« Reply #2 on: August 09, 2021, 11:47:15 AM »
Here is the journal source:
July 2011Catalysis Today 170(1):13-19
DOI:10.1016/j.cattod.2011.01.019

Offline Corribus

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Re: Langmuir Isotherm Equilibrium Constant
« Reply #3 on: August 09, 2021, 04:53:59 PM »
Unfortunately I don't seem to have access to this journal, so it's hard to offer help because I don't know what's in these specific tables and figures.
What men are poets who can speak of Jupiter if he were like a man, but if he is an immense spinning sphere of methane and ammonia must be silent?  - Richard P. Feynman

Offline Kaajal

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Offline izmirov

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Re: Langmuir Isotherm Equilibrium Constant
« Reply #5 on: August 10, 2021, 09:41:07 PM »
Thank you Dr Corribus. My colleague had posted link. Please let me know if the link works.

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