Mixed-Phase (2H and 1T) MoS2 Catalyst for a Highly Efficient and Stable Si Photocathode
, Eunsoo Kim 1, Thi Anh Ho 1, Heejun Yang 1, Jong Hyeok Park 2,* and Hyunjung Shin 1,*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
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Author Response File: 
Author Response.pdf
Reviewer 2 Report
Please find the attachment
Comments for author File: Comments.pdf
Author Response
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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.
