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What is the problem of Nickel foam as catalyst support for overall...
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+ Water splitting
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+ Nickel
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Misha Firer
What is the problem of Nickel foam as catalyst support for overall...
I googled, but did not find it. Thx for the reference, but the nickel foam in that paper is tested in acidic rather than alkaline electrolyte. In addition, what I need is for overall water splitting, instead of only HER or OER. I want to know more details.
I googled, but did not find it. Thx for the reference, but the nickel foam in that paper is tested in acidic rather than alkaline electrolyte. In addition, what I need is for overall water splitting, instead of only HER or OER. I want to know more details.
First thing is to check the electrochemical activity of bare nickel foam in your particular experimental conditions then compare it with your prepared material by loading on to nickel foam, if any change or improvement in electrochemical property is observed then take it for granted that, it is because of your sample. However if it possible to use glassy carbon electrode as supporting electrode then it is better since it does not show any electrochemical activity normally.
First thing is to check the electrochemical activity of bare nickel foam in your particular experimental conditions then compare it with your prepared material by loading on to nickel foam, if any change or improvement in electrochemical property is observed then take it for granted that, it is because of your sample. However if it possible to use glassy carbon electrode as supporting electrode then it is better since it does not show any electrochemical activity normally.
First, be specific, are you talking about water oxidation or water reduction? Second, just do a control experiment. Check the activity of your Nickel foam under your conditions. I agree with reviewer that nickel might be catalytically active
First, be specific, are you talking about water oxidation or water reduction? Second, just do a control experiment. Check the activity of your Nickel foam under your conditions. I agree with reviewer that nickel might be catalytically active
In our lab experiments we use Ni-foam for loading the catalyst, but the problem with the Ni-foam emanates from the genetic make-up of the Ni foam itself. Ni-foam as the name suggests has a porous structure, but its porous nature allows the uncontrolled diffusion of the solvent used in ink preparations. Secondly, one certainly can not ascertain on the area involved in the catalysis. Often, due to porosity the standard area that is 1cm x 1cm is not confined. In these case masking of unwanted area is important.
In our lab experiments we use Ni-foam for loading the catalyst, but the problem with the Ni-foam emanates from the genetic make-up of the Ni foam itself. Ni-foam as the name suggests has a porous structure, but its porous nature allows the uncontrolled diffusion of the solvent used in ink preparations. Secondly, one certainly can not ascertain on the area involved in the catalysis. Often, due to porosity the standard area that is 1cm x 1cm is not confined. In these case masking of unwanted area is important.
" I did the control experiment with bare Ni foam, but I want to know more details about the activation or activity of bare Ni foam" What are the results? "So I wonder whether they are some published papers investigating this." Why not to Google before asking? ACS Appl. Mater. Interfaces, 2016, 8 (8), pp 5065–5069 DOI: 10.1021/acsami.6b00233
" I did the control experiment with bare Ni foam, but I want to know more details about the activation or activity of bare Ni foam" What are the results? "So I wonder whether they are some published papers investigating this." Why not to Google before asking? ACS Appl. Mater. Interfaces, 2016, 8 (8), pp 5065–5069 DOI: 10.1021/acsami.6b00233
Dear Wang There are already some reports about the possible electrochemical oxidation/activation of Nickel under alkaline conditions and formation of Nickel oxide or hydroxide and very recently, PingWu Du group has reported Nickel oxide thin films can acts as efficient bifunctional electrocatalyst for overall water slitting. So i think you need to consider the reviewer points. Please find in attachments the concerned references
Dear Wang There are already some reports about the possible electrochemical oxidation/activation of Nickel under alkaline conditions and formation of Nickel oxide or hydroxide and very recently, PingWu Du group has reported Nickel oxide thin films can acts as efficient bifunctional electrocatalyst for overall water slitting. So i think you need to consider the reviewer points. Please find in attachments the concerned references
Could you, please, give us some information about your experiments ( type of reactor geometry, temperature, electrolyte used )? Ni is not stable in presence of oxygen, it should catalyze the hydrogen oxidation beeing a well known hydrogenation catalyst
Could you, please, give us some information about your experiments ( type of reactor geometry, temperature, electrolyte used )? Ni is not stable in presence of oxygen, it should catalyze the hydrogen oxidation beeing a well known hydrogenation catalyst
I googled, but did not find it. Thx for the reference, but the nickel foam in that paper is tested in acidic rather than alkaline electrolyte. In addition, what I need is for overall water splitting, instead of only HER or OER. I want to know more details.
I googled, but did not find it. Thx for the reference, but the nickel foam in that paper is tested in acidic rather than alkaline electrolyte. In addition, what I need is for overall water splitting, instead of only HER or OER. I want to know more details.
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First thing is to check the electrochemical activity of bare nickel foam in your particular experimental conditions then compare it with your prepared material by loading on to nickel foam, if any change or improvement in electrochemical property is observed then take it for granted that, it is because of your sample. However if it possible to use glassy carbon electrode as supporting electrode then it is better since it does not show any electrochemical activity normally.
First thing is to check the electrochemical activity of bare nickel foam in your particular experimental conditions then compare it with your prepared material by loading on to nickel foam, if any change or improvement in electrochemical property is observed then take it for granted that, it is because of your sample. However if it possible to use glassy carbon electrode as supporting electrode then it is better since it does not show any electrochemical activity normally.
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First, be specific, are you talking about water oxidation or water reduction?
Second, just do a control experiment. Check the activity of your Nickel foam under your conditions. I agree with reviewer that nickel might be catalytically active
First, be specific, are you talking about water oxidation or water reduction?
Second, just do a control experiment. Check the activity of your Nickel foam under your conditions. I agree with reviewer that nickel might be catalytically active
More
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There is a related paper entitled "Enhanced electrocatalytic hydrogen evolution activity of nickel foam by low-temperature-oxidation".
Article Enhanced electrocatalytic hydrogen evolution activity of nic...
Anyway, it is better if you can do a systematic control experiment towards overall water splitting of Ni Foam.
There is a related paper entitled "Enhanced electrocatalytic hydrogen evolution activity of nickel foam by low-temperature-oxidation".
Article Enhanced electrocatalytic hydrogen evolution activity of nic...
Anyway, it is better if you can do a systematic control experiment towards overall water splitting of Ni Foam.
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Dear All,
Greetings.
In our lab experiments we use Ni-foam for loading the catalyst, but the problem with the Ni-foam emanates from the genetic make-up of the Ni foam itself. Ni-foam as the name suggests has a porous structure, but its porous nature allows the uncontrolled diffusion of the solvent used in ink preparations. Secondly, one certainly can not ascertain on the area involved in the catalysis. Often, due to porosity the standard area that is 1cm x 1cm is not confined. In these case masking of unwanted area is important.
Dear All,
Greetings.
In our lab experiments we use Ni-foam for loading the catalyst, but the problem with the Ni-foam emanates from the genetic make-up of the Ni foam itself. Ni-foam as the name suggests has a porous structure, but its porous nature allows the uncontrolled diffusion of the solvent used in ink preparations. Secondly, one certainly can not ascertain on the area involved in the catalysis. Often, due to porosity the standard area that is 1cm x 1cm is not confined. In these case masking of unwanted area is important.
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In the open literature for water splitting electrodes you can find potential problems for the nickel foam catalyst supports.
In the open literature for water splitting electrodes you can find potential problems for the nickel foam catalyst supports.
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" I did the control experiment with bare Ni foam, but I want to know more details about the activation or activity of bare Ni foam"
What are the results?
"So I wonder whether they are some published papers investigating this." Why not to Google before asking?
ACS Appl. Mater. Interfaces, 2016, 8 (8), pp 5065–5069
DOI: 10.1021/acsami.6b00233
" I did the control experiment with bare Ni foam, but I want to know more details about the activation or activity of bare Ni foam"
What are the results?
"So I wonder whether they are some published papers investigating this." Why not to Google before asking?
ACS Appl. Mater. Interfaces, 2016, 8 (8), pp 5065–5069
DOI: 10.1021/acsami.6b00233
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You may try glassy carbon electrode.
You may try glassy carbon electrode.
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@Hussein Hassan, thank you
@Hussein Hassan, thank you
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Dear Wang
There are already some reports about the possible electrochemical oxidation/activation of Nickel under alkaline conditions and formation of Nickel oxide or hydroxide and very recently, PingWu Du group has reported Nickel oxide thin films can acts as efficient bifunctional electrocatalyst for overall water slitting. So i think you need to consider the reviewer points.
Please find in attachments the concerned references
Dear Wang
There are already some reports about the possible electrochemical oxidation/activation of Nickel under alkaline conditions and formation of Nickel oxide or hydroxide and very recently, PingWu Du group has reported Nickel oxide thin films can acts as efficient bifunctional electrocatalyst for overall water slitting. So i think you need to consider the reviewer points.
Please find in attachments the concerned references
More
VOTE
Could you, please, give us some information about your experiments ( type of reactor geometry, temperature, electrolyte used )? Ni is not stable in presence of oxygen, it should catalyze the hydrogen oxidation beeing a well known hydrogenation catalyst
Could you, please, give us some information about your experiments ( type of reactor geometry, temperature, electrolyte used )? Ni is not stable in presence of oxygen, it should catalyze the hydrogen oxidation beeing a well known hydrogenation catalyst
More
VOTE