Toward a Reliable Synthesis of Strontium Ruthenate: Parameter Control and Property Investigation of Submicrometer-Sized Structures

Correlating the chemical composition and size of various metal oxide substrates with the catalytic activity and stability of as-deposited Pt nanoparticles for the methanol oxidation reaction

“…Specifically, Figure S1 All BET values were found to be consistent with other measured BET data for each metal oxide tested herein, possessing a particular range in size, as noted from prior literature. 14,23,[38][39][40][41][42] It is also important to note that the synthesis method plays an important role in controlling the overall surface area of the material. A table including data from metal oxides synthesized by others with similar BET surface area analysis measurements to our own can be found in the SI, which support our own BET data (Table S1).…”

“…Interestingly, the peaks in both regions can be solely attributed to the Pt NPs themselves at the surface, an observation indicative of the fact that the identity of the 'A' site metal, Sr, likely does not itself contribute significantly to the adsorption of hydroxyl groups; this assertion is supported by Figure S2 as well as by prior reports. 23 In fact, both strontium and titanium are known to be "inactive" and electrochemically passive, since they do not possess obvious active sites for adsorption. 36,37 By contrast, the RuO 2 and SrRuO 3 samples maintain peaks in the hydrogen and oxygen adsorption regions, which are similar to what has been previously observed with Pt/RuO 2 materials.…”

Aerosol‐Assisted Molten Salt Synthesis of NaInS2 Nanoplates for Use as a New Photoanode Material

“…The MSS method is a versatile route to low defect, crystalline particles of inorganic solids at significantly lower temperatures and shorter reaction times when compared to traditional solid state heating methods 25, 26. This technique can also facilitate the synthesis of metastable phases and there are even examples where the flux acts as a habit modifier, although with few notable exceptions, the product particles have poorly defined shapes and are micrometers or larger in size 27–30. However, with USP, each aerosol droplet serves as a micrometer‐sized reactor and provides an opportunity to spatially confine the flux to previously unobtainable dimensions.…”

Nanoscale Perovskites as Catalysts and Supports for Direct Methanol Fuel Cells

“…Cyclic voltammograms (Figure 2E), measuredi na na cidic electrolyte, revealed thato ur well-defined faceted octahedra SRO exhibited af ourfold increase in mass-normalized activity relative to their rounded analogues.T his observation was attributed not only to ac orrespondingf ourfold increaseinactive availables urfacea rea relative to rounded particles but also to a1 00 mV lower onset potential (i.e.,s uppression of the anodic overpotential), associated with octahedra, thereby emphasizing ac lear morphological effect governing the behavior of faceted SRO crystalsfor electrochemical applications. [52] Relevance of size Our lab also conducted ac omparative study with respect to examining the effect of size. This analysisw as conducted with respectt ob oth SRO and SrTiO 3 (STO).…”

“…C) SEM and D) HRTEMi mages coupled with the associatedSAED(inset) pattern are presented for SrRuO 3 samples,p repared under optimizedr eactionc onditions. E) Voltammetry curves of am ass-normalized methanol oxidation process, involving SrRuO 3 particles and facetedo ctahedra in a0 .5 m CH 3 OH/0.1 m HClO 4 solutiona t1 0mVs À1 .The mass-specific methanol oxidation activityo ft he SrRuO 3 particles is showna t1.2 V. Reprinted with permission from Ref [52]…”