Manganese MOF-based cathodes achieve high discharge capacity, reduced overpotentials and promoted reversibility in Li–CO₂batteries.

In recent years, inorganic CsPbBr₃-based perovskites have accomplished considerable progress owing to their superior stability under harsh humid environment.

Monodispersed MnO nanoparticles in a 3D conductive carbon framework are designed as an effective cathode for highly efficient, powerful and stable Li–CO₂ battery.

The rational design of hierarchical hollow nanomaterials is critical significance in energy storage materials. Herein, dual-wall nanospheres (DWHNS) Sn/MoS2@C are constructed by situ confined growth and interface engineering. inner spheres Sn/MoS2 formed atomic soldering MoS2 nanosheets with liquid Sn at high temperature. formation mechanism the structure explored morphology evolutions different temperatures. DWHNS manifest abundant space specific surface area, which provides more support...

Since the booming research on perovskite solar cells (PSCs), organic–inorganic hybrid halide perovskites have triggered widespread attention. This is seen in unprecedented improvement of power conversion efficiency (PCE) from an initial 3.8% to a remarkable 25.5%. Despite fascinating PCEs, toxicity detrimental lead element major limiting factor that hampers commercialization prospect lead‐based materials. Extensive efforts been dedicated progress lead‐free, stable, and ecofriendly materials...

Electronic nicotine delivery systems (ENDSs) are designed as a non-combustible alternative to cigarettes, aiming deliver without the harmful byproducts of tobacco combustion. As category evolves and new ENDS products emerge, it is important continually assess levels toxicologically relevant chemicals in aerosols characterize any related toxicology. Herein, we present proposed framework for characterizing novel (i.e., devices formulations) determining reduced risk potential utilizing...

An ultrahigh-areal-capacity Li–CO₂ cathode was fabricated with a revelation of the relationship between electrode structure and cell's energy density.

The preparation route has striking impacts on the morphology and photovoltaic performance of solar cells, development a feasible strategy to make such technology applicable industry is utmost significance. Compared with solution processing, vapor deposition been demonstrated as an effective way fabricate compact uniform perovskite thin films excellent versatility controllability. While vast majority literature emphasizes processing method for cells (PSCs), vapor‐deposited PSCs are closing...

Commutation failure (CF) in the line-commutated converter based high-voltage direct-current system will result a large amount of reactive power surplus on rectifier ac system. It cause transient overvoltage and lead to massive disconnection renewable sources. In this article, mechanism caused by CF is analyzed suppression strategy improved voltage-dependent current order limiter (VDCOL) control proposed. First, during process CF, dynamic behavior consumption analyzed. proposed that when...

Cs2SnI6 has recently been reported as a promising material to replace Pb-based perovskite materials due its appropriate optical and electrical properties well high stability in the ambient environment. Here, study focuses on introducing different types of reactants form highly stable films via modified two-step process. The structural analysis was examined using X-ray diffraction measurements lattice strain average crystallite size were calculated by Williamson hall method. All prepared...

In this work, based on first-principles calculations, we theoretically predict two kinds of two-dimensional tetragonal Si-Se compounds, Si2Se2 and SiSe2, as the anode materials for alkali metal-ion batteries. The results show that SiSe2 are thermally dynamically stable have good electronic conductivity. diffusion barriers Li, Na K atoms 0.07 eV, 0.17 eV surface Si2Se2, 0.45 0.43 0.30 respectively, which indicate excellent rate capability. Most remarkably, can deliver high specific...

In the past decade, organic–inorganic halide perovskites (OIHPs) perovskite solar cells (PSCs) have received gigantic research attention owing to their prompt development in power conversion efficiency (PCE) from initial 3.8% for first prototype 2009 present state‐of‐the‐art value of 25.5%. However, due weak‐bonded organic components hybrid crystal structure, intrinsic chemical instability OIHPs persuaded by humidity, ultraviolet light, and heat remain a challenging issue them meet...

Abstract In recent years, the organic-inorganic perovskite materials have revolutionized Photovoltaic industry with highly efficient power conversion devices accompanied by a high growth rate. However, these experience major environmental and stability issues that hinder their true potential. More recently, rarely studied material Cs 2 SnI 6 is gaining enormous attention due to its superior suitable bandgap. this work, we developed modified two-step process prepare uniform films, influence...

Abstract As potential candidates for organic–inorganic hybrid perovskite materials, Pb-free Cs 2 SnI 6 has gained considerable attention because of their better stability under atmospheric conditions containing oxygen and water vapor. Herein, we fabricate films using the vapor-assisted deposition method with Sn I powders as reactants. To obtain uniform pure films, two different reaction systems are applied properties samples characterized via x-ray diffraction, scanning electron microscopy,...

Li-O2 batteries are considered promising electrochemical energy storage devices due to their high specific capacity and low cost. However, this technology currently suffers from two serious problems: round-trip efficiency slow reaction dynamics at the cathode. Solving these problems requires designing novel catalysis materials. In study, a bilayer tetragonal AlN nanosheet as catalyst is theoretically designed for system, discharge/charge process simulated by first-principles approach. It...

Abstract CsPbI 3 perovskite materials have triggered enormous research attention as promising light-harvesting or fluorescent materials, owing to their high photoluminescence quantum yields, narrow (PL) emission spectra and excellent photophysical properties based on the confinement effect. However, formation of desirable black-phase requires complex processing at higher annealing temperatures upon it suffers from instability issues room temperature, hindering its potential for...

Parallel to the booming of all‐inorganic CsPbX 3 halide perovskites, growth lead‐free perovskites is accelerating, with efficiency values over 10% being realized. Eco‐friendly and stable double superior stability are considered as an encouraging alternative address concerns related lead perovskites. Recently, Cs 2 SnI 6 defect perovskite structure has appeared a “superstar” material owing its environmental friendliness exceptional stability. Herein, iodine‐rich strategy (IRS) developed based...