RESUMEN
Based on the theoretical approach of multi-body interaction dynamics, a theoretical model is constructed to simulate the nonlinear response amplification of the projectile structure. The accuracy and universality of the theoretical model were verified by comparing the response data calculated by the theoretical model with the experimental data. The results show that the theoretical model can predict the acceleration and strain response of the projectile structure more accurately, providing a non-linear dynamic analysis method for the projectile structure from the perspective of structural dynamics.
RESUMEN
In this communication, a PdMn bimetallene is synthesized using a template-free solvothermal method with the assistance of diamines. The PdMn bimetallene with rich defects and highly curved structures shows superior performance for the formate oxidation reaction (FOR) and the hydrogen evolution reaction (HER). For the two-electrode HER-FOR system, the PdMn bimetallene achieves a much lower voltage of 0.376 V at 10 mA cm-2, demonstrating an energy-effective path for hydrogen production.
RESUMEN
Nonmetal doping is a promising strategy to improve electrocatalytic performance of noble metal based catalysts for oxygen reduction reaction (ORR). Herein, we report a facile method to fabricate PdCuBP nanothorn assemblies (PdCuBP NTAs) by co-doping B and P into pre-synthesized PdCu NTAs using NaBH4and NaH2PO2as B source and P source, respectively. The metal-nonmetal structure and multi-branched morphology can optimize oxygen adsorption energy and avoid catalyst migration, agglomeration and Ostwald ripening. As such, the obtained PdCuBP NTAs exhibit efficient activity and excellent long-term stability for ORR. This research offers an excellent strategy for co-doping nonmetal elements into metal nanocrystals with controllable composition and structure to improve electrocatalytic ORR performance.
