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Peer-Review Record

Mixed-Phase (2H and 1T) MoS2 Catalyst for a Highly Efficient and Stable Si Photocathode

Catalysts 2018, 8(12), 580; https://doi.org/10.3390/catal8120580
Reviewer 1: Anonymous
Reviewer 2: Anonymous
Reviewer 3: Anonymous
Catalysts 2018, 8(12), 580; https://doi.org/10.3390/catal8120580
Received: 31 October 2018 / Revised: 14 November 2018 / Accepted: 16 November 2018 / Published: 23 November 2018
(This article belongs to the Section Photocatalysis)

Round 1

Reviewer 1 Report

The present manuscript describes the fabrication of a MoS2 protected Si photocathode for PEC water splitting. The results are quite promising and the manuscript is generally well-written. I recommend publication after adressing the following two points:

- A single Si photoelectrode cannot split water inbiased due to insufficient photovoltage/bandgap. It is probably planned to use it as the cathode part of a tandem-cell but this should at least at some point be mentioned in the manuscript.

- How reproducible was the experiment with the 500 ALD Cycle electrode? It seems quite odd that all ALD samples produce roughly the same photovoltage of ~0.4V while this one sample suddenly delivers double that value. Has this been verified with another independently fabricated electrode? If so, experiments at 450/550 would be really fascinating to further pin down the optimum.

Author Response

see attached

Author Response File: Author Response.pdf

Reviewer 2 Report

Please find the attachment

Comments for author File: Comments.pdf

Author Response

See attached

Author Response File: Author Response.pdf

Reviewer 3 Report

This is a work of a very high quality from photocatalyst design, characterizations to photoactivity testing. I am happy to recommend it for publication as it is. 

Author Response

Reviewer 3

This is a work of a very high quality from photocatalyst design, characterizations to photoactivity testing. I am happy to recommend it for publication as it is. 

 Author response: Thank you.

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