Low Temperature Lithium Metal Batteries In article 2200400, Jia-Qi Huang and co-workers deconvolved the overpotential contributions of Li electroplating in low-temperature operation conditions, which a strong interplay among dominating kinetic overpotential, dynamic evolution solid electrolyte interphase chemistry, corresponding reversibility is identified.

Hematite is a promising catalyst for the photoelectrochemical water oxidation reaction, which however displays a low overall efficiency. To improve it, a systematic understanding of the underlying photocatalytic mechanisms is desirable but difficult to obtain by experimental techniques alone. Here, we have investigated the oxidation of water on the most stable terminations of the bare hematite,...

Sintered electrode lithium-ion batteries contain only electroactive material which has undergone a mild thermal treatment to improve particle connectivity and thus mechanical strength. These electrodes can be made very thick, due the lack of inactive binders or conductive additives there are ion transport advantages relative equivalent thickness porosity composite electrodes. In this study, dis...

Sponge-like Ni3N/NC was prepared through a facile approach and was examined as a catalyst for the oxygen evolution reaction (OER). This material can efficiently catalyze water oxidation to reach a current density of 10 mA cm-2 with a small overpotential of 310 mV in 1.0 M KOH aqueous solution. The high efficiency can be attributed to the good electronic conductivity, large specific surface area...

We discuss the electrochemical reactions at the oxygen electrode of an aprotic Li-air battery. Using density functional theory to estimate the free energy of intermediates during the discharge and charge of the battery, we introduce a reaction free energy diagram and identify possible origins of the overpotential for both processes. We also address the question of electron conductivity through ...

The great promise of the combination urea oxidation reaction (UOR) with hydrogen evolution (HER) to simultaneously achieve wastewater treatment and production calls for rational design high-performance electrocatalysts. Herein, reconstruction formation Ni2P Mo2O72− on surface can largely enhance alkaline HER activity P-NiMoO4 by on-site electrochemical activation strategy. Systematic experiment...

Establishing how Cu facilitates the electrochemical CO2 reduction reaction (CO2RR) to C2+ products remains a critical challenge. Under typical conditions, pH near electrode is considerably more alkaline than that in bulk due mass transport limitations. Challenges with probing pathways using computational methods have limited understanding of CO2RR under experimentally relevant conditions. In th...