A metal/semiconductor contact induced Mott–Schottky junction for enhancing the electrocatalytic activity of water-splitting catalysts

Abstract

Hydrogen, with clean and high gravimetric energy density features, has been considered as an ideal energy carrier. Electrochemical water splitting that can convert the intermittent electricity generated from wind and...

Electronic Redistribution Through the Interface: A Prodigy that Enhances Electrocatalysis

“…The junction formed between metal and semiconductor is also known as Schottky junctions accelerates the reaction by redistributing charge at the interface, also tune the adsorption energy of the intermediates. [122][123][124][125] Hou et al developed a conceptual model in which they created a range of metalsemiconductor interfaces, such as Cu/CuO x , Co/CoO x , and CuCo/ CuCoO x (Figure 7a). [126] The implementation of a roadmap for continuous electron transport between metals and semiconductors has been attempted.…”

“…The interface between the metal and semiconductor has unique ability to synergistically enhance the reaction kinetics of different types of electrocatalytic reactions. The junction formed between metal and semiconductor is also known as Schottky junctions accelerates the reaction by redistributing charge at the interface, also tune the adsorption energy of the intermediates [122–125] . Hou et al.…”

Palladium nanoparticles on gallium nitride as a Mott–Schottky catalyst for efficient and durable photoactivation of unactivated alkanes

“…Recently, the design of Mott–Schottky catalysts consisting of a metal–semiconductor heterojunction has made it possible to control the charge transfer between the metal and semiconductor components through the rectifying contact at the interface offering a feasible method for significantly enhancing energy conversion, organic synthesis, photocatalytic reactions, and electrochemical reactions. 20–22 So far, the introduction of a Schottky junction in photocatalysts is mainly focused on water splitting, 23 CO 2 reduction, 24 and water treatment. 25 However, their potential in the field of C–H activation, especially for the functionalization of unactivated alkanes, has rarely been studied.…”

Review of Mott–Schottky-Based Nanoscale Catalysts for Electrochemical Water Splitting

“…48 Few recent reviews have provided comprehensive overviews of the enhancement of the Mott−Schottky effect in water splitting, with a special focus on the effect of interfacial component coupling in heterostructures, 49 preparation strategies for M−S catalysts, structural and compositional connections, and their catalytic performances. 31 These reviews cover the basic principles, characterization techniques, possible structures, and design of M−S catalysts 50 in photocatalysis, electrocatalysis, and organic synthesis applications including HER, OER, nitrogen reduction reaction (NRR) and carbon dioxide (CO 2 ) reduction. The main goal of this Review (Figure 1c) is to address the fundamentals of M−S-based heterojunctions and summarize the corresponding techniques for evaluating electrocatalytic performances.…”

“…Similarly, the insertion of an amorphous phase into the crystalline phase and stimulating a local coordination environment through the creation of lattice distortion and vacancy sites through controllable atom embedment can also lead to robust electrochemical performances. , However, rather than solely concentrating on the development of new nanocomposites, combining nanoscale featured materials with interfacial engineering, , can provide highly potent electrocatalysts that effectively improve the intrinsic catalytic activity, electronic transfer ability, and electron density of the active sites. One such fundamental interface and valence engineering strategy includes the Mott–Schottky effect. − …”