Universal Synthesized Strategy for Amorphous Pd‐Based Nanosheets Boosting Ambient Ammonia Electrosynthesis

Abstract

high-purity hydrogen and nitrogen under extreme and demanding conditions such as high temperature and pressure, leading to energy intensive and greenhouse gas emissions. [2] Therefore, it is particularly important to develop a green and sustainable strategy for producing ammonia. Electrochemical catalytic nitrogen reduction reaction (NRR) attracts widespread attention due to its high efficiency, low energy consumption, and zero emission ammonia synthesis under mild conditions. Whereas,

Intermetallic Nanocrystals for Fuel-Cells-Based Electrocatalysis

“…After discussing the downsizing of intermetallics, we next divert our attention into another trend in intermetallics, multidimensional morphology-controlled synthesis. This is because that these multidimensional structures can provide stronger interaction with supports than zero-dimensional (0D) counterparts, inducing the elevated structural stability and fast electron and mass transport. − In addition, the strong interaction between them and supports, as well as less dependence on the supports induce the superior structural stability and fast electron and mass transport. − Multidimensional properties also endow intermetallics with high surface-to-volume ratio to show a larger number of catalytically surface active sites, beneficial for enhancing electrocatalysis. − Therefore, developing anisotropic intermetallics is an important trend for designing high-performance electrocatalysts. However, the required high-temperature annealing conditions will inevitably destroy the shape of the initial crystals, inducing thermodynamically stable 0D structure, which makes the morphology-controlled synthesis of intermetallics be much more difficult.…”