Smart Designs of Anti-Coking and Anti-Sintering Ni-Based Catalysts for Dry Reforming of Methane: A Recent Review
Round 1
Reviewer 1 Report
This Review is well written well organized and points out the effects for designing stable and efficient catalysts for DRM
However a part on Promotion itself is missing
About the first table
I suggest to add more reference of Ce promotion effect and its concentration
On La also (H. Liu et al) and on Y ones (K. Swirk Catal Today 2020)
with the impact of the promotion loading
The other parts with C formation and inhibition should also detailled in pointing out the reactions consumming carbon
Author Response
Please see the attachment
Author Response File: 
Author Response.docx
Reviewer 2 Report
Dear authors
Very interesting review about DRM catalysts and improved Ni-based catalysts.
One point, related with hierarchical designs (5.2): some zeolite structures can present such characteristics. Do you think they could be included in such a point?
2nd point. As you refer unconventional reaction systems (as plasma, micro-waves, etc) can bring some improvements to these catalytic systems.
Did you consider that the publish results should be included in your review?
Author Response
Please see the attachment
Author Response File: Author Response.docx
Reviewer 3 Report
Manuscript ID : reactions-1000475
This is quite an interesting review paper about smart designs of Ni-based catalysts. Four approaches for the development of novel Ni-based catalysts are introduced; surface regulation, oxygen defects, interfacial engineering, and structural optimization. I think this is timely and important subject; therefore, I would like to suggest that the paper be accepted as the review article in Reactions after the proper revision. Below are several comments that need to be addressed.
- One of the important aspects of Ni-designed catalysts is control of size. Earlier investigation indicates that the size of Ni nanoparticles is the crucial factor to determine the catalytic activity [For example, H. Choi et al. Journal of Catalysis 376 (2019) 68–76]. I suggest that this aspect can be included in the Review article.
- The oxidation state of Ni nanoparticles is also an important factor. Recent in-situ surface characterization (for example, ambient pressure XPS) indicates the surface oxidation occurs during the reaction, which affects the catalytic performances. It needs to be discussed more thoroughly together with the introduction of operando surface analysis.
- In the part of “Alloy of Ni and noble metals”, recent operando studies on the formation of Pt-NiOx interfacial structures during the reaction can be introduced. [J. Kim et al. Science Advances, 4, eaat3151 (2018); T. Kim et al. ACS Catalysis 10, 10459 (2020)]
Author Response
please see the attchment
Author Response File: Author Response.docx
Round 2
Reviewer 1 Report
The authors improved significantly the manuscript !
