Recent advances in the field of carbon-based cathode electrocatalysts for Zn–air batteries

Abstract

Carbon-based catalysts are widely regarded as one of the most promising materials for energy storage and conversion technologies due to their high electrical conductivity as well as the tunable micro-...

Atomically Dispersed Transition Metal-Nitrogen-Carbon Bifunctional Oxygen Electrocatalysts for Zinc-Air Batteries: Recent Advances and Future Perspectives

“…Intrinsic defects (such as topological defects, edge defects, and vacancy defects) in carbon catalysts have been gradually demonstrated to be an efficient, crucial strategy to contribute to enhancing the catalytic activities toward both ORR and OER [114][115][116][117][118]. The intentionally introduced defect sites to carbon materials can enhance the electrocatalytic activity under a similar mechanism of heteroatom doping.…”

Synthesis of a novel Sr2TiMnO6 double perovskite electrocatalyst for rechargeable zinc–air batteries

“…14,[25][26][27][28][29][30] Recently, transition metals and their compounds have focused on energy research cause of their state of being, deduced cost, abundance, and environmental friendliness. 31,32 Their ability to tune themselves for ORR activities also proves them highly competent for energy research. 27 Thus, in current energy research, researchers concentrate on perovskite oxide materials with the structural formula of simple-ABO 3 and double-layered A 2 B 2 O 6 , where A is Alkali metals or rare earth metals site B is transition metal ions in the structure.…”

“…Several materials including, perovskite oxides, nonprecious metals, alloys, metal oxides, nanoparticles based on carbon, and other material composites, have been investigated and studied as electrocatalysts in response to their increased catalytic activity toward ORR‐OER 14,25‐30 . Recently, transition metals and their compounds have focused on energy research cause of their state of being, deduced cost, abundance, and environmental friendliness 31,32 . Their ability to tune themselves for ORR activities also proves them highly competent for energy research 27 .…”

Efforts at Enhancing Bifunctional Electrocatalysis and Related Events for Rechargeable Zinc‐Air Batteries

“…Although there are a number of reviews about RZABs published recently, most of them focused purely on the bifunctional catalysts for the oxygen reduction (ORR) and oxygen evolution reactions (OER) in RZABs, without highlighting the rational design of RZABs as a whole or modulating their performance and durability from a systematic point of view. [8][9][10][11][12] In pursuit of this aim, this review discusses the fabrication methods of highly efficient RZABs. The discussion roots from the fundamental mechanism of Zn anode and cathode reactions to introduce the current challenges (i. e., dendrite growth, shape change, passivation, and H 2 evolution) (Scheme 1).…”