Laser ablation in air and its application in catalytic water splitting and Li-ion battery

Abstract

Summary Pulse laser has been widely used in both fundamental science and practical technologies. In this perspective, we highlight the employment of pulse laser ablation in air (LAA) in energy-related catalytic reactions. With LAA, samples are directly ablated in ambient air, which makes this technology facile to conduct. Materials can be modified by LAA in multiple aspects, such as morphology modulation, heterojunction fabrication, or defects engineering, which are desired features for energy-related catalytic reactions. We begin this perspective with a brief introduction of this technology, including the mechanism, the experimental setup, and the characteristic of laser-ablated materials. The recent works utilizing LAA are then summarized to prove the promising prospects of LAA in the energy field. Finally, several opportunities about the future usage of LAA are proposed and discussed.

Influence of Temperature on ZnO/Co3O4 Nanocomposites for High Energy Storage Supercapacitors

“…In these systems, materials and structures are crucial. Electrode materials with high activity, large surface area, and sufficient durability are commonly required for both effective energy storage and energy conversion. , Since the activity of materials depends on the applications, various materials have been examined as electrode materials for LIBs, as catalysts for the hydrogen evolution reaction (HER), − and the oxygen evolution reaction (OER) in water splitting . Electrodes have also been developed for supercapacitors.…”

“…2,3 Since the activity of materials depends on the applications, various materials have been examined as electrode materials for LIBs, 4 as catalysts for the hydrogen evolution reaction (HER), 5−7 and the oxygen evolution reaction (OER) 8 in water splitting. 9 Electrodes have also been developed for supercapacitors. Supercapacitors, also known as ultracapacitors or electrochemical capacitors, are advanced electronic devices that store and release bulk electrical energy with a charge separation between the electrolyte and the surface of nanostructured electrodes.…”

Oxygen vacancy-expedited ion diffusivity in transition-metal oxides for high-performance lithium-ion batteries

“…Creating vacancies in crystal lattices could intrinsically change the physicochemical properties of materials. Previous research on oxygen vacancies focused on catalysis [22][23][24][25][26]. Only a few studies analyzed the effect of oxygen vacancies on lithium storage [27].…”

PtSe2/Pt Heterointerface with Reduced Coordination for Boosted Hydrogen Evolution Reaction

“…Constructing heterointerface is powerful strategy to design high-performance materials,w here exceptional phenomenon and physics can be observed, including band bending, [6] charge redistribution, [7] phase transaction [8] and so on. In electrocatalytic HER, the density of active sites and the intrinsic activity are two vital factors that define the efficiency of ac atalyst.…”