Titanium carbide (TiC) is an attractive support material used in electro‐catalysis and sensing. We report the electrochemistry of TiC nanoparticles (NPs, 35‐50 nm in diameter) in different electrolytes in the pH range of 0 to 8. The TiC NPs undergo irreversible oxidation in acidic, basic, and neutral media, attributed to the partial conversion into titanium dioxide (TiO 2 ) with the amount of oxidation

Na3V2(PO4)2F3 (NVPF) has captured significant heed for cathode materials of sodium ion battery (SIB) due to its stable three‐dimensional (3D) structure channel which could accommodate Na+ diffusion. However, NVPF is still facing with a major challenge for the electrochemical performance owing to its uncontrollable morphology. Na3V2(PO4)2F3 (NVPF) has captured significant heed for cathode materials

Developing high‐performance low‐loading Ir‐based electrocatalysts for oxygen evolution reaction (OER) in acid media is still a great challenge. Herein, we fabricated an iridium manganese catalyst with only 5% iridium. The influence of manganese dioxide phase states (α‐, β‐, γ‐ and δ‐MnO2 ) on the OER performance of IrO2 /MnO2 catalysts was investigated. α‐MnO2 as substrate, with most advantageous textural

Aiming at a fundamental understanding of synergistic effects of different additives on the electrochemical Mg deposition / dissolution in an ionic liquid, we have systematically investigated these processes in a combined electrochemical and theoretical study, using 1‐butyl‐1‐methylpyrrolidinium bis(trifluoromethylsulfonyl) imide (BMP‐TFSI) as solvent and a cyclic ether (18‐crown‐6) and magnesium borohydride

The cathode catalyst for lithium‐air (Li‐air) battery has a critical effect on battery performance. Two‐dimensional (2D) B, N dual‐doped graphite carbon (BNC) catalyst prepared by a carbonization process was studied as a highly active electrocatalyst in Li‐air battery in this study. The B, N dual‐doped carbon offered high contents of boron and nitrogen, as well as graphene‐like structure. When employed

Hybrids comprising hollow mesoporous nitrogen doped carbon (HMC) nanospheres and metal oxide‐nanoparticles were prepared via a hydrothermal synthesis. These materials exhibit excellent bifunctional catalytic activity in the oxygen reduction and evolution reactions (ORR and OER, respectively) that core to the efficient operation of Zn‐air batteries. When incorporated into prototype devices, Co 3 O 4

Aqueous zinc ion batteries (AZIBs) have attracted wide attention as large scale energy storage system due to their obvious merits such as high safety, low cost, and simple maintenance. However, the development of AZIBs is seriously hindered by Zn dendrite‐induced low efficiency, cell fading, and even cell short‐circuiting. Unlike the traditional anode modification strategies, this work stabilized the

The dissolution and free diffusion of polysulfides in ether‐based electrolyte during cycling causes fast capacity decay and low columbic efficiency in lithium‐sulfur batteries. In this work, Poly(2‐ethyl‐2‐oxazoline) (PEtOx) as an additive of sulfur cathode can gelatinate the electrolyte in the presence of polysulfide species, which can anchor the uncontrollable diffusion of polysulfides during the

Li‐rich layered oxide Li1.2Ni0.13Co0.13Mn0.54O2 (LNCMO) is a promising cathode material for high‐energy‐density lithium‐ion batteries (LIBs). However, it suffers from severe capacity fading and voltage decay, especially at high voltage (>4.5 V). In this study, we successfully design an active LiVOPO4 (LVOP) coating on the LNCMO surface. The LNCMO/LVOP composites exhibit enhanced rate capability and

High‐capacity silicon anodes are attracted more attention owing to their high theoretical capacities and low working potentials. However, massive volume changes and low intrinsic electric conductivity are still substantial challenges and limit the practical applications for these anodes in lithium‐ion batteries (LIBs). In this study, Co‐doped silicon nanoparticles with different Co concentrations (0

N‐doped porous carbon (NPC) materials have attracted increased attention for zinc air battery (ZAB) application because of their comparable electrocatalytic activity to precious metals. However, few metal‐free NPC catalysts exhibit an oxygen reduction reaction performance better than Pt catalysts, together with high oxygen evolution reaction catalytic activity. Herein, an efficient oxygen electrocatalyst