Syngas Production Improvement from CO2RR Using Cu-Sn Electrodeposited Catalysts

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

Please find additional comments in the attached document.

Comments for author File: Comments.pdf

Comments on the Quality of English Language

The English could be improved to more clearly express the research.

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 2 Report

Comments and Suggestions for Authors

 

Please see the report

Comments for author File: Comments.pdf

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 3 Report

Comments and Suggestions for Authors

In their study, the authors have investigated the use of electrodeposited bimetallic catalysts with Cu-Sn compositions, synthesized by electrochemical deposition. The catalysts were tested for CO2RR in a zero-gap flow electrolyzer.

The discussions were conducted appropriately, and the data are suitable for publication after addressing the following issues:

 

- Figure 2, and 3 Y axis is not clear for the reader!

- When The electrodeposition happends in two-step, perhaps the second metal to be deposited in the responsible of the catalytic acticity? has the authors tried to test the Cu only?

- EDX would enrich the discussion especially to determine the distribution of the elements on the surface when doing two-step electrodeposition? It is hard to know if the first element deposited is exposed to CO2 !

- What is the thickness of the films in different conditions?

- When electrodepositing Sn and Cu at the same time (one step), what is the composite/phase formed?

- Any liquid products have been detected?

- The FEs are the exact values or they are normalised to attain 100%?

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Round 2

Reviewer 1 Report

Comments and Suggestions for Authors

The authors have addressed my questions. No additional comment will be provided.

Reviewer 3 Report

Comments and Suggestions for Authors

The revised manuscript can be accepted for publication!