Zinc-Air Batteries (ZABs) are a promising solution for grid-scale torage. In this work, ZAB chemistry is reviewed and the role of catalysts at the cathode is explained. Transition metal oxides are an economical substitute for noble-metal based catalysts. However, their poor electrical ...
Composing atomic transition metal sites for high-performance bifunctional oxygen electrocatalysis in rechargeable zinc–air batteries Noble-metal-free electrocatalystsOxygen reduction reactionOxygen evolution reactionRechargeable zinc-air batteries have attracted extensive attention as clean,safe,... J Wang,C Zha...
Highly efficient and cost-effective electro-catalysts are very much desirable if fuel cells2–4, hydrogen generation from solar and electrolytic water splitting5 and metal air battery technologies6,7 are to become ubiquitously practical on a large scale. To date, expensive noble metals based electro...
In recent years, non-noble metal composite catalysts have attracted increasing attention due to their advantages of excellent catalytic activity and cost compared with noble metal-based catalysts. This review summarizes the latest progress in this field. Firstly, the OER mechanism and the evaluation ...
Fig. 1. Schematics of the structure of a metal-air battery (MAB) as compared with a standard battery. Table 1 gives a comparative summary of the electrochemical properties of main anode metal materials (Li, Zn, Mg, Al, and Na) in MABs (calculations are based on the weight of anode mat...
Zinc–air batteries (ZABs) are promising energy storage systems because of high theoretical energy density, safety, low cost, and abundance of zinc. However, the slow multi-step reaction of oxygen and heavy reliance on noble-metal catalysts hinder the practical applications of ZABs. Therefore, ...
Noble metal-free N-doped carbon-based electrocatalysts for air electrode of rechargeable zinc-air batterynoble metal-freeoxygen reduction reactionzinc-air batteriesoxygen electrocatalysisN-doped carbon-based materialsLow-cost, high-energy density, and safe zinc-air batteries (ZABs) have been considered ...
Reforming catalysts containing noble metal and zinc and reforming processCatalysts for reforming typically contain platinum supported on a high surface area alumina. During reforming reactions, specifically dehydrocyclization, such catalysts produce undesirable light gases. Applicants have found a new catalyst...
ZincAlkynesCatalysisAlkynes constitute a valuable and versatile functional group in organic synthesis since they can be transformed to build new C–C, C–H and/or C–X (X=N, O, Si) bonds. These processes can be accomplished efficiently under mild conditions by means of transition metals. ...
We also showcase typical prominent examples of their applications in exhaust gas purification, battery manufacturing, water splitting, and selective hydrogenation. Finally, perspectives are discussed in terms of future research opportunities in the realm of noble metal nanocatalysts. Keywords: catalysts; ...