Fabrication of Polyaniline Ni-Complex Catalytic Electrode by Plasma Deposition for Electrochemical Detection of Phosphate through Glucose Redox Reaction as Mediator

Round 1

Reviewer 1 Report

The authors have convincingly addressed all raised questions by the referees, now the manuscript can be accepted for publication.

Author Response

Thank you for your valuable comments.

Reviewer 2 Report

Authors have addressed all my points. The Ms has improved a lot, very interesting paper actually. I can recommend the Ms for publication now.

Author Response

Thank you for your valuable comments.

Reviewer 3 Report

The resubmitted manuscript contains enormous repetitions levels from already published sources. iThenticate report attached. 

The 2. Results were insufficiently connected to the following 3. Discussions chapter.

Some of the conclusions in chapters such as "This means that the successful surface deposition of poly-127 aniline Ni-complex on the ITO electrodes via one-step cold plasma deposition." in 2.3. Atomic force microscopy (AFM) analysis remains too speculative. 

Comments for author File: Comments.pdf

Author Response

Comments: Some of the conclusions in chapters such as "This means that the successful surface deposition of poly-127 aniline Ni-complex on the ITO electrodes via one-step cold plasma deposition." in 2.3. Atomic force microscopy (AFM) analysis remains too speculative.

 

Answers: Thank you for your comments.   We used one-step cold plasma polymerization which is a spraying method for deposition of polyaniline-Ni catalyst onto ITO electrodes.  When we use spraying polymerization, the coated polymer has different morphology onto the ITO surface such as thickness, roughness, and etc.  So, we determined the surface properties of the prepared catalytic electrode by using AFM analysis.   According to results of the AFM, SEM analysis, etc. we conclude "This means that the successful surface deposition of poly-127 aniline Ni-complex on the ITO electrodes via one-step cold plasma deposition."

 

Comments: The resubmitted manuscript contains enormous repetitions levels from already published sources. iThenticate report attached.

 

Answers: According to your comments, we revised the manuscript and attached. 

 

Author Response File: Author Response.pdf

This manuscript is a resubmission of an earlier submission. The following is a list of the peer review reports and author responses from that submission.

Round 1

Reviewer 1 Report

General comment: the presented work has 17 % similarity to other author’s work: Electrocatalytic Oxidation of Methanol by a Polymeric Ni Complex-modified Electrode Prepared by a One-step Cold-Plasma 332 Process, Frontiers in Chemistry, Ji-Soo Jeon, In-Keun Yu, Woonjung Kim, and Seong-Ho Choi, 8, 1-9 (2020).

The novelty of the work should be improved essentially to consider the work for publishing.

Additional comments:

The motivation and added value of “2.1 Contact Angle analysis” are insufficiently justified.

The AFM analysis shows changes in surface topography which could be caused by the deposition of any particles or films. However, it is impossible to distinguish the chemical composition of the deposited films, and the conclusion in lines 111-112 “These results means that the polyaniline Ni-complex catalytic electrodes 111 were successfully synthesized by one-pot cold plasma deposition.” is inappropriate.

The quality (brightness) of Figure 4 is insufficient. One of the pictures is almost black.

Figure 5 should be corrected, and names of corresponding elements should be placed near the peak.

English language should be carefully corrected by the native speaker because the meaning of some sentences is not so easy to understand. For example: „Low temperature plasmas can be prepared polymers in laboratories and in industrial 64 applications“; “This skill gives the good challenge, which is prepared polymeric, specially, con-177 ducting polymer metallic complexes with glucose redox reaction as catalytic mediator”.

The text in the “3. Discussions” is a compilation from the following sources and should be essentially modified:

1. Jinggong Wang. "Plasma Polymerization of Aniline on Different Surface Functionalized Substrates", Journal of Colloid And Interface Science, 20020701
2. Electrocatalytic Oxidation of Methanol by a Polymeric Ni Complex-modified Electrode Prepared by a One-step Cold-Plasma 332 Process, Frontiers in Chemistry, Ji-Soo Jeon, In-Keun Yu, Woonjung Kim, and Seong-Ho Choi, 8, 1-9 (2020).

The conclusions are too generic and have lots in common as conclusions in the publication (should be rewritten):

Electrocatalytic Oxidation of Methanol by a Polymeric Ni Complex-modified Electrode Prepared by a One-step Cold-Plasma 332 Process, Frontiers in Chemistry, Ji-Soo Jeon, In-Keun Yu, Woonjung Kim, and Seong-Ho Choi, 8, 1-9 (2020).

Comments for author File: Comments.pdf

Reviewer 2 Report

The authors fabricated polyaniline Ni-complex catalytic electrode for electrochemical detection of phosphate through glucose redox reaction as mediator. However, this manuscript just look like a experiment report, not a manuscript. More results and discussion of this paper should be provided. Therefore, this paper cannot be accepted in this journal.

To improve the quality of this manuscript, here below are some of the specific comments that the authors should consider.

1. The high resolution SEM images (or TEM) of No.4 should be provided for getting the detailed information.
2. It was so difficult to get the conclusion that "the polyaniline Ni-complex catalytic electrode was successfully prepared by one-pot plasma process easily and simply." (Line 93, Page 2) only by the result of contact angle analysis.
3. The aggregated particles as shown in No. 3 and No.4 for Figure 2 should be explained carefully.
4. All the EDS spectra of No1, No.2, No.3 and No.4 should be given.
5. For obtaining the accurate atomic ratio of all samples, the ICP-MS of all the samples should be performed.
6. The abbreviations of No.1, No.2, No.3 and No.4 should be shown in the first place of this manuscript (in the section of 2.1 Contact Angle analysis).
7. The description of "the polyaniline Ni-complex" in Line 98, Page 3 should be corrected because that No. 2, No. 3 and No.4 was polyaniline-grafted ITO electrode, the benzoic acid-modified polyaniline electrode and polyaniline Ni-complex catalytic electrode, respectively.
8. The Inset Figure in Figure 5 should be labeled in the Figure Caption of Figure 5, and the corresponding description of "Ni2P" should be labeled clearly.
9. The authors need to improve the English carefully because of overall poor English.

Reviewer 3 Report

In this contribution, authors report on the fabrication of polyaniline Ni-complex catalytic electrode by plasma deposition for electrochemical detection of phosphate through glucose redox reaction as mediator. 

Paper is solid and conclusion are consistent with experimental data, therefore I recommend publication of the manuscript in its present form.

Reviewer 4 Report

The paper focus on the prparation of polyaniline Ni-complex catalytic electrode for glucose oxidation by using one-pot plasma deposition of the synthesized precursor solutions.
In general, the results mostly support the authors' conclusions. However, some aspects of the manuscript must be carefully reviewed, discussed and improved


1- Please add more details and ref on dischage plasma/HIPIMS for catalyst depose. I suggest adding theses references: Materials 12 (3), 412 (2019)
2-Please give more information (operating conditions ) in figure 1 and 2
3-Please revise the text in the figure 4