Track topics on Twitter Track topics that are important to you
Aqueous Zn-ion batteries present a low cost, safe, and high-energy battery technology, but suffer from the lack of suitable cathode materials because of the sluggish intercalation kinetics associated with the large size of hydrated zinc ions. Herein we report an effective and general strategy to transform inactive intercalation hosts into efficient Zn2+ storage materials through intercaltion energy tuning. Using MoS2 as a model system, we show both experimentally and theoretically that even hosts with originally poor Zn2+ diffusivity can allow fast Zn2+ diffusion. Through simple interlayer spacing and hydrophilicity engineering that can be experimentally achieved by oxygen incorporation, the Zn2+ diffusivity is boosted by 3 orders of magnitude, effectively enabling the otherwise barely active MoS2 to achieve a high capacity of 232 mAh g-1 that is 10 times as its pristine form. The strategy developed in our work can be generally applied for enhancing the ion storage capacity of metal chalcogenides and other layered materials, making them promising cathodes for challenging multivalent ion batteries.
This article was published in the following journal.
Name: Nano letters
Aqueous Zn-ion batteries, which are being proposed as large scale energy storage solutions due to their unparalleled safety and cost advantage, are comprised of a positive host (cathode) material, a m...
MoS2 holds great promise as high-rate electrode for lithium ion batteries since its large interlayer can allow fast lithium diffusion in 3.0-1.0 V. However, the low theoretical capacity (167 mAh/g) li...
Rechargeable aqueous zinc-ion batteries (ZIBs) are promising energy storage devices due to their low cost and high safety. However, their energy storage mechanisms are complicated and not well establi...
A high-performance low-cost aqueous Al-ion supercapacitor was fabricated based on nanostructured V2O5 impregnated mesoporous carbon microspheres (MCM/V2O5) electrodes and Al2(SO4)3 electrolyte for the...
Activated carbon (AC) with large surface area and high electrical conductivity is widely applied on supercapacitors (SC), but the energy storage mechanism for the pure electrical double layer capacito...
Assessment of the impact of oral Human Milk Oligosaccharides (HMO) application on acute diarrhoea and the development of prolonged and persistent diarrhoea in paediatric patients hospitali...
This study will be performed as a local multicenter, randomized, phase III clinical study. It will compare the adjuvant chemotherapy in Stage IB-IIIA NSCLC with common EGFR mutation (Exon ...
The purpose of this study is to obtain and assay human aqueous samples following pre-operative dosing with 0.1% Brimonidine Purite™ (pH 7.8) or with 0.15% Brimonidine Purite® (pH 7.2) f...
Comparison of aqueous and plasma glucose level in diabetic patients High glucose concentrations in aqueous humor are thought to be related of diabetic ocular injury, including cataract an...
Glycogen, is the storage form of glucose. It is usually formed from sugar and stored in the liver. When tissues, such as muscle, need glucose for fuel the stored glycogen is converted in...
Electric power supply devices which convert biological energy, such as chemical energy of metabolism or mechanical energy of periodic movements, into electrical energy.
The transfer of energy of a given form among different scales of motion. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed). It includes the transfer of kinetic energy and the transfer of chemical energy. The transfer of chemical energy from one molecule to another depends on proximity of molecules so it is often used as in techniques to measure distance such as the use of FORSTER RESONANCE ENERGY TRANSFER.
Measurement of light given off by fluorescein in order to assess the integrity of various ocular barriers. The method is used to investigate the blood-aqueous barrier, blood-retinal barrier, aqueous flow measurements, corneal endothelial permeability, and tear flow dynamics.
Any of a group of polysaccharides of the general formula (C6-H10-O5)n, composed of a long-chain polymer of glucose in the form of amylose and amylopectin. It is the chief storage form of energy reserve (carbohydrates) in plants.
A 16-kDa peptide hormone secreted from WHITE ADIPOCYTES. Leptin serves as a feedback signal from fat cells to the CENTRAL NERVOUS SYSTEM in regulation of food intake, energy balance, and fat storage.