The nickel‐rich LiNi0.91Co0.06Al0.03O2 cathode material has attracted wide attention due to its high energy density and appropriate thermal stability, however, its practical application has been greatly restricted by exorbitant residual LiOH/Li2CO3 and poor cycling performance. In this work, we have reduced the residual LiOH/Li2CO3 through washing the LiNi0.91Co0.06Al0.03O2 fabricated by a high‐temperature

Noncovalent chemical interactions, including electrostatic interaction, hydrogen‐bonding, and hydrophobic interaction, constitute crucial driving forces in the bottom‐up assembly of multifunctional molecular complexes and nanomaterials. Electrostatic interaction in chemical environments is generally considered as non‐specific interaction, which poses notable challenges for control and direct measurement

The interest in polymer electrolyte membrane fuel cells for automotive applications is nowadays increasing. To run such systems efficiently, the operating strategy relies on information about the stacks operational conditions. The cell capacitance in most cases contains such information and it can be measured in real‐time using electrochemical impedance spectroscopy. However, the influence of the operating

The electrocatalytic water splitting is considered as the attractive way for the clean and sustainable energy production. Herein, a series of self‐supported oxygen and molybdenum dual‐doped cobalt phosphides grown on Ni foam (O,Mo‐CoP/NFs) were prepared. The O,Mo‐CoP/NFs exhibited 3D hierarchical morphologies including urchin‐like nanostructures assembled with nanorods and nanoflowers assembled with

Some errors with the academic titles of the authors have recently been identified. The authors are Tongrui Zhang, Dr. Haifu Huang, Dr. Junxing Han, Faxin Yan, and Prof. Dr. Chunwen Sun. The author apologizes for this oversight and for any inconvenience caused.

MFe 2 O 4 (M = Zn, Cu, Mg, Ca) spinel ferrites, with electronic band gaps between 1.4 and 2.1 eV and only earth‐abundant elements containing, are promising visible light harvesting materials for photoelectrochemical (PEC) water splitting. In‐situ growing the semiconducting thin films on metallic substrate directly usually could produce highly mechanical stable photoelectrodes and lower interfacial

We report a study of the role transition and post‐transition metals have on a model non‐precious metal catalyst for the oxygen reduction reaction (ORR) prepared via a molecularly defined terpyridine unit covalently attached to a carbon black support. We had previously reported on the use of a terpyridine modified iron‐based catalyst that allowed for the controlled deposition of highly active nitrogen

Electrodes made up of aligned 1D semiconductor nanostructures have drawn much attention in photoelectrochemical applications, as they are expected to be ideal configuration for channeling electrons towards the substrate without lateral electron scattering. However, efforts were hardly made to optimize the defect states in such systems. Herein, we observed significant enhancement (~20 fold) in photoelectrochemical

The biosynthesis of metallic nanomaterials, especially noble metal nanomaterials, has attracted extensive attention due to the multifarious potential applications of these materials. In this study we have explored the effects of Cu(II) on Pd(II) removal, and of Cu(II) as well as phosphate on the morphologies and composition of biogenic nanoparticles (NPs) from aqueous Pd(II) systems by Shewanella oneidensis

As one of the potential next‐generation energy storage systems, sodium ion batteries possess the advantages of Na natural resources and relatively low cost. However, the serious volume changes and poor cycle stability of the anode materials hindered the further application of sodium ion batteries. Herein, a facile and green method has been proposed to fabricate a high performance Co7Se8@C anode with

Selenium exhibits smaller volume expansion and much higher electrical conductivity compared with sulfur, which makes it considered as a potential cathode material. In order to improve electrochemical performance of potassium‐selenium (K‐Se) batteries, we prepared porous carbon/Se (PC) composite via carbonization, KOH activation and melt diffusion and synthesized a novel porous carbon/Se/graphene oxide

Novel conductive polymer‐based metal complexes were electrochemically synthesized and characterized in relation to (spectro)electrochemical stimuli. Particularly, we focused our attention on terthiophenes functionalized with terpyridine groups, along with Fe2+ cations present during electrochemical synthesis. The resultant electroactive films are coherent, robust, and exhibit mixed absorption profiles

Cobalt‐free perovskite oxides with mixed ionic and electronic conducting (MIEC) properties have been considered as promising alternatives for solid oxide fuel cell (SOFC) cathode material. Among the cobalt‐free perovskite oxides, iron‐based perovskite oxides have received much spotlight as potential candidates for high‐temperature SOFC cathode material attributed to their great catalytic activity for

Renewable energy driven electrochemical processes are becoming increasingly important in the transition away from fossil fuels. One of the key reactions is electrochemical water splitting to generate green hydrogen which ideally could be directly integrated with a wind or solar electricity source. However, alkaline electrolysers suffer from significant degradation in performance if they are rapidly

Modulation of activity of a quasicrystalline or amorphous matrix by selective dealloying of less reactive metal is a trade‐off between activity increment due to enhanced electronic structure/surface area and activity decrement due to an increase in crystallinity. We evaluate this trade‐off in melt‐spun ribbons of amorphous PtZr 4 and quasicrystalline PdZr 3 metallic glasses for hydrogen evolution reaction

The use of silicon (Si) in the form of nanoparticles is one of the most promising routes for boosting the capacity of modern Li‐ion batteries. Many parameters influence the performance of Si making the comparison of materials complicated. The present work demonstrates a direct comparison of Si nanoparticles with amorphous and crystalline structures prepared through the same chemistry with the same

The Kolbe or Non‐Kolbe electrolysis is one of the most studied electro‐organic reactions and a fundamental pillar of organic chemistry. In contrast to classical Kolbe dimerization of monocarboxylic acids, dicarboxylic acids are only scarcely subject for Kolbe electrolysis in literature despite their vast natural abundance. Herein, we report on the intramolecular biradical recombination of dicarboxylic

High‐working potential layered oxides as cathode materials have been considered as an effective way to improve the energy density of Na ion batteries (NIBs) to enhance their competitiveness as a promising alternative for lithium ion batteries in large‐scale energy storage applications. However, they generally suffer irreversible phase transition, large volume change and electrolyte corrosion when charged

The design of efficient electrochemical setups to precisely and timely quantify the oxygen permeability, which dictates how the lens let O 2 to reach the eye, is important for the development lens‐based materials. We report herein a home‐made electro‐analytical platform made of a 3D‐printed diffusion electrochemical cell to assess this parameter. The design overcomes edge effects and allows analysis

Silicon (Si) is regarded as one of the most promising anode materials for lithium‐ion batteries (LIBs) due to its high capacity and low working voltage. However, dramatic volume expansion and inferior electrical conductivity greatly impede the commercial use of Si anodes. Herein, we design and synthesize a novel nanocomposite of Si nanosphere coated by carbon (Si@C) and hollow porous Co9S8/C polyhedron