Facile Aqueous-Phase Synthesis and Electrochemical Properties of Novel PtPd Hollow Nanocatalysts

Convenient Synthesis of 3D Fluffy PtPd Nanocorals Loaded on 2D h-BN Supports as Highly Efficient and Stable Electrocatalysts for Alcohol Oxidation Reaction

“…We found that the optimal Pt/Pd composition of 1:1 in h-BN/PtPd NCs provides higher ECSA values in comparison with the two other conditions. As illustrated in previous works, ,− the optimized metallic composition of h-BN/PtPd NCs can provide an enhanced synergistic effect between Pt and Pd atoms, showing a promising potential for improving electrocatalytic activity.…”

“…For MORs in acidic medium, each CV image in Figure a contains two oxidation peaks, including a forward peak and a backward peak. The oxidation peak observed in the forward sweep corresponds to the direct oxidation of methanol molecules, which is usually regarded as an important parameter to elucidate the catalytic activity of nanocatalysts. − The mass activity and specific activity of these five samples (Figure b) reveal that h-BN/PtPd NCs provide enhanced electrocatalytic activity toward MORs in an acidic solution. For instance, the mass activity of h-BN/PtPd NCs is about 540.3 mA mg PtPd –1 , which is much higher than that of the other four samples.…”

Biogenic platinum from agricultural wastes extract for improved methanol oxidation reaction in direct methanol fuel cell

“…The comparison of Pt NPs- sugarcane bagasse with other Pt-based catalysts in terms of synthesis method and electrocatalytic performance in MOR reported in recent years were summarized in Table 4 . Interestingly to note that the electrochemical performance of the biosynthesized Pt NPs is superior than Pt-based materials synthesized by conventional methods, such as wet-chemical reduction with vary morphologies of Pt sponge-like structure [36] , Pt nanosponge foil [37] , bimetallic PtPd sheet-assembled network [38] , bimetallic PtAu stellated morphology [30] , bimetallic PtPd porous nanostructure [39] and other conventional technique such as electrodeposition of Pt needle-flower like structures [4] , galvanic replacement reaction of PtPd hollow [40] , hydrothermal technique of PtAg octahedral shape [35] and seed-mediated approaches of bimetallic CuPt stellated morphologies [41] . Clearly, the power density for Pt NPs-sugarcane baggase showed the highest performance compared to other catalysts.…”

Intermix of metal nanoparticles–single wall carbon nanotubes

“…4,16,17 Thus, the mixed solid samples show a striking similar electro-catalytic behaviour as bimetallic catalysts. 4,16,17 CO stripping voltammograms are shown in Fig. 1B and the peak potentials of CO stripping of different catalysts are presented in Fig.…”