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Molecules
Volume 28
Issue 4
10.3390/molecules28041831
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Article
Peer-Review Record

Al Foil-Supported Carbon Nanosheets as Self-Supporting Electrodes for High Areal Capacitance Supercapacitors

Molecules 2023, 28(4), 1831; https://doi.org/10.3390/molecules28041831
by Jiaojiao Zheng 1, Bing Yan 1, Li Feng 1, Qian Zhang 2,*, Jingquan Han 1, Chunmei Zhang 3,*, Weisen Yang 4, Shaohua Jiang 1 and Shuijian He 1,*
Reviewer 1:
Ganesh Dhakal
Molecules 2023, 28(4), 1831; https://doi.org/10.3390/molecules28041831
Submission received: 26 January 2023 / Revised: 9 February 2023 / Accepted: 13 February 2023 / Published: 15 February 2023
(This article belongs to the Special Issue Synthesis, Characterization, and Applications of Nanomaterials for Energy Conversion and Storage)

Round 1

Reviewer 1 Report

The article "Al foil supported carbon nanosheets as self-supporting electrodes for high areal capacitance supercapacitors" presents the synthesis of binder-free electrode materials grown on the Al foil. The subject is interesting, but the manuscript lacks some details and clarifications. So I am suggesting the following points to upgrade the manuscript to meet the journal's standards.

1.      The authors synthesized CNS-30, CNS-60, and CNS-120. The authors present an increase in electrochemical performance with concentration. What will be the performance at further higher concentrations?

2.      In section 2.1.1, the authors used acetonitrile as a carbon source. The authors should mention the amount of acetonitrile used during the CVD processes.

3.      The authors should check  equation 3.

4.      The Rct value of  CNS varies by almost ten times for each sample. The authors need to add a further explanation to support their results.  

 

5.      The authors should provide the high-resolution XPS spectrum of zinc and aluminum.

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 2 Report

It is a good article and it can be published in Molecules.
1- The authors should describe the preparation of the electrode in more detail. Is the system two or three electrodes?? And...
2- What is the active mass?
3- In my opinion, CV and GCD are not compatible. Authors should check the analyzes twice!!
4- What is the applied potential in GCD?(I/g)
5- spacific capacitance is obtained from what formula?
6- Capacitance should be calculated from both CV and GCD analysis. Are these slightly different?
7- Energy storage mechanism should be fully described in one section.
8- Place the equivalent circuit in the Nyquist diagram.
9- Explain more about the carbon in the electrode structure. What is the electrochemical active surface area of this carbon or how much is its electrical conductivity?
10- Compare your research results with other articles in a table.
11- State in the introduction what is the innovative aspect of this research?

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

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