Inhibited Passivation by Bioinspired Cell Membrane Zn Interface for Zn-Air Batteries with Extended Temperature Adaptability.

Due to the slow dynamics of mass and charge transfer at Zn|electrolyte interface, the stable operation of Zn-air batteries (ZABs) is challenging, especially at low temperature. Herein, inspired by cell membrane, a hydrophilic-hydrophobic dual modulated Zn|electrolyte interface is constructed. This amphiphilic design enables the quasi-solid-state (QSS) ZABs to display a long-term cyclability of 180 h@50 mA cm at 25 °C.

Highly Reversible Zn-Air Batteries Enabled by Tuned Valence Electron and Steric Hindrance on Atomic Fe-N-C Sites.

The bifunctional oxygen electrocatalyst is the Achilles' heel of achieving robust reversible Zn-air batteries (ZABs). Herein, durable bifunctional oxygen electrocatalysis in alkaline media is realized on atomic Fe-N-C sites reinforced by NiCoO (NiCoO@Fe/NC). Compared with that of pristine Fe/NC, the stability of the oxygen evolution reaction (OER) is increased 10 times and the oxygen reduction reaction (ORR) performance is also improved.

Ruthenium Single Atomic Sites Surrounding the Support Pit with Exceptional Photocatalytic Activity.

Single-metal atomic sites and vacancies can accelerate the transfer of photogenerated electrons and enhance photocatalytic performance in photocatalysis. In this study, a series of nickel hydroxide nanoboards (Ni(OH) NBs) with different loadings of single-atomic Ru sites (w-SA-Ru/Ni(OH)) were synthesized via a photoreduction strategy. In such catalysts, single-atomic Ru sites are anchored to the vacancies surrounding the pits.

Built-in Electric Field Promotes Interfacial Adsorption and Activation of CO for C Products over a Wide Potential Window.

The unsatisfactory adsorption and activation of CO suppress electrochemical reduction over a wide potential window. Herein, the built-in electric field (BIEF) at the CeO/InO n-n heterostructure realizes the C (CO and HCOO) selectivity over 90.0% in a broad range of potentials from -0.

Long-cycle Zn-air batteries at high depth of discharge enabled by a robust Zn|electrolyte interface.

It is an urgent need to improve the depth of discharge (DOD) of Zn-air batteries (ZABs), considering that most reported ZABs with long cycle life are realized at low DOD (<1%). In this work, our solid-state ZABs achieved a long cycle life of more than 220 h at 3.2% DOD (the discharge capacity of 10 mA h cm per cycle).

Insight on Atomically Dispersed Cu Catalysts for Electrochemical CO Reduction.

Electrochemical CO reduction (ECOR) with renewable electricity is an advanced carbon conversion technology. At present, copper is the only metal to selectively convert CO into multicarbon (C) products. Among them, atomically dispersed (AD) Cu catalysts have received great attention due to the relatively single chemical environment, which are able to minimize the negative impact of morphology, valence state, and crystallographic properties, etc.