UV-Visible-Near-Infrared-Driven Photoelectrocatalytic Urea Oxidation and Photocatalytic Urea Fuel Cells Based on Ruddlensden–Popper-Type Perovskite Oxide La2NiO4
Round 1
Reviewer 1 Report
In this manuscript, two-dimensional porous La2NiO4 as a photoanode for photoelectrocatalytic urea oxidation under full spectrum sunlight irradiation. The La2NiO4 photoanode is used to degrade urea and the cathode produce hydrogen at the same time. The filling factor of La2NiO4 photoanode under NIR light is higher than other catalysts. However, at the present manuscript，some explanations need to be further discussed and some details should be corrected. Minor revision is required before its publications.
1. In Figure 4a and 4c, the identified light source in the figure is only vis and IR.
2. The EIS needs to be further analyzed and the equivalent circuit diagram should be provided in the manuscript.
3. There are many reference electrodes in the manuscript. For the convenience of comparison and reading, all the electrodes should be uniformly referred to as reversible hydrogen electrodes.
4. In Line 77 and 78, “uW cm-2” should be changed to “μW cm-2”.
5. In Line 318, “Ni(NO3)•6H2O” should be confirmed the valence state of nickel.
6. In Line 333, there needs to be a space in “C1s”.
Author Response
Please see the attachment.
Author Response File: 
Author Response.pdf
Reviewer 2 Report
UV-Visible-Near-Infrared-Driven Photoelectrocatalytic Urea 2 Oxidation and Photocatalytic Urea Fuel Cells based on Rud-3 dlensden-Popper-type Perovskite Oxide La2NiO4
This paper is written well with a good results, I recommend Minor acceptance
I have some Question for the authors
1. Please mentioned the preparation method using 2D R GO in the Abstract
2. How you new that the prepared La Ni Oxide is perovskite, how you prove that?
3. Mentioned briefly in the Abstact the measurements that you carried out for fuel cell and then the H2 generation
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
