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1£©Õë¶ÔµÄÎÄÕÂÖоßÌåµÄ¾ä×Ó£ºComments to the Author Pg 13, Line 19
¡°In addition, we note that several large nanoparticles were observed in the two monometallic samples due to the inevitable aggregation in impregnation; however, in bimetal oxides families, this negative phenomenon of particles aggregation is largely prevented, signifying the contribution of bimetal oxides systems toward the improvement in the morphological features with well dispersion and smaller particle size.¡±
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£¨1£©The authors should take great care in drawing such grand conclusions from TEM analysis. The method is inherently sporadic in its sampling and it is important that one conscientiously looks across the entire TEM grid in order to ensure fair sampling and proper statistics.
£¨2£©In addition to the possible shortcomings of the ineffective sampling, the authors have drawn an incorrect conclusion with respect to the dispersion of the formed bimetallic nanoparticles. I do not agree that bimetallics from coimpregnation will lead to increased dispersion over monometallics. One could argue that that the metallic precursors (in solution) interact with the support surface differently, and thus have different nucleation sites leading to one metal showing a higher dispersion. This may be the case with Pd versus Ru as monometallic Ru is shown to form smaller particles. However, this would give the two extreme cases for a bimetallic: small particles for Ru and larger ones for Pd. The authors have stated that the co-impregnation of both metals led to increased dispersion beyond that of the expected limiting case of the small Ru particles.

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