Pd-based intermetallic nanocrystals: From precise synthesis to electrocatalytic applications in fuel cells

Pd/CuO–Ni(OH)2/C as a highly efficient and stable catalyst for the electrocatalytic oxidation of ethanol

“…The CH 3 CO ads intermediate will block the active sites or decompose into CO, resulting in a reduction in the catalytic activity of the catalyst. 59 Therefore, it is desirable to design a catalyst to increase the proportion of the C 1 path to make efficient use of ethanol. To explore the influence of the CuO, Ni(OH) 2 and alloys on the enhanced activity, in situ FTIR reflectance spectroscopy was used to qualitatively analyze the reaction species, and the CO 2 selectivity was quantitatively calculated.…”

In situ electrochemical synthesis of Pd aerogels as highly efficient anodic electrocatalysts for alkaline fuel cells

“…Various fuel cells with alcohols (like ethanol, ethylene glycol, and glycerol), formic acid, and glucose as the chemical fuels have been proposed recently, and different Pd-based materials have been investigated as efficient anodic catalysts. [52][53][54] Herein, the electrocatalytic performances towards isopropanol, ethylene glycol, glycerol, formic acid, and glucose for alkaline fuel cells on Pd aerogels as the anodic electrocatalysts were explored. Surprisingly, the Pd aerogels exhibited much higher activity towards the above fuels, showing lower onset potentials and larger peak current densities as anodic electrocatalysts towards various fuels for their fuel cell applications (Fig.…”

Activating Pd Nanoparticles on Oxygen-Doped g-C3N4 for Visible Light-Driven Thermocatalytic Oxidation of Benzyl Alcohol

“…Benzaldehyde (BzH) is an important organic intermediate and industrial chemical, which is widely used in perfumery, printing and dyeing, pharmaceutical and agrochemical industries, and other fields. − Currently, there are many methods for producing BzH in both laboratory and industry, such as toluene oxidation , and benzyl chloride hydrolysis. , Among them, selective oxidation of benzyl alcohol (BzOH) in liquid phase to BzH by O 2 is considered to be the most environmentally friendly and promising route. − Such an oxidation process involves the cleavage of C–H and O–H bonds of BzOH and the activation of O 2 , which are heavily catalyst-dependent. − Among the various catalysts explored, noble metal-based nanocatalysts, − especially Pd-based nanocatalysts, − have shown immense potential in enabling O 2 as the oxidant in the selective oxidation of BzOH. In Pd-based nanocatalysts, the main focus has been to tailor their composition, size, morphology, and surface structure so as to enhance their catalytic performance in various catalytic oxidation reactions. − Normally, the abovementioned control methods inevitably use capping agents or surfactants . The presence of capping agents or surfactants inevitably leads to the existence of residual organic molecules on the surface of catalysts that inhibit the catalytic performance, which can also increase the cost of subsequent processing. , In this sense, the establishment of a facile and clean method to optimize the catalytic performance of Pd-based nanocatalysts for BzOH selective oxidation that will hopefully accelerate the development and practical application of the BzOH selective oxidation process is quite anticipated, while it remains a large challenge to date.…”

“…25−28 Normally, the abovementioned control methods inevitably use capping agents or surfactants. 29 The presence of capping agents or surfactants inevitably leads to the existence of residual organic molecules on the surface of catalysts that inhibit the catalytic performance, which can also increase the cost of subsequent processing. 30,31 In this sense, the establishment of a facile and clean method to optimize the catalytic performance of Pd-based nanocatalysts for BzOH selective oxidation that will hopefully accelerate the development and practical application of the BzOH selective oxidation process is quite anticipated, while it remains a large challenge to date.…”