Structural effects and catalytic performance of Pd catalysts with micro-mesoporous structure on coal tar hydrodesulfurization

Controlling the SAPO-34 Particle Size to Enhance Reaction-Diffusion Behavior for Improving Catalytic Efficiency in the MTO Reaction

“…The configurational diffusion in the pores of zeolites has brought the shape selective catalysis effect, which greatly improves the selectivity of the target product, but it is also unable to avoid the blockage caused by the nondiffusion of coke molecules after a deep reaction. − The diffusion properties under nonreactive conditions have been measured in existing research methods, including macroscopic methods such as membrane diffusion and zero column length chromatography (ZLC), , according to limiting boundary conditions to determine the diffusion behavior of molecules in zeolite crystals. The diffusion data can be calculated by Fick’s law.…”

Tannic acid modified PdAu alloy nanowires as efficient oxygen reduction electrocatalysts

“…Alloying Pd with Au not only can tailor the electronic structure of Pd, but also inhibit the dissolution of Pd, thereby enhancing activity and stability of Pd-based electrocatalysts in alkaline environment [7,13,17]. Moreover, the structural engineering is also an effective strategy to improve the catalytic performance of catalysts [18][19][20][21][22][23][24]. Therefore, PdAu bimetallic catalysts with various morphologies have previously been demonstrated, such as nanowires [25][26][27], nanoparticles [28][29][30][31], nanochains [32], nanospheres [17], nanoflowers [33], which showed excellent catalytic performance.…”

Mechanistic insights into acid-affected hydrogenolysis of glycerol to 1,3-propanediol over an Ir–Re/SiO2 catalyst

“…These negative effects could be caused by the adsorption of anions associated with these liquid acids. 28,29 To address this issue, the adsorptions of SO 4 2− , NO 3 − and Cl − on the surface were further studied by DFT calculations. As described in Fig.…”