Correction: Expanded graphite incorporated with LiTiO nanoparticles as a high-rate lithium-ion battery anode.

[This corrects the article DOI: 10.1039/D4RA00832D.].

Optimizing metal/n-AlGaN contact by recessed AlGaN heterostructure with a polarization effect.

With increasing Al mole fraction, n-contact has become an important issue limiting the development of Al-rich AlGaN-based devices. In this work, we have proposed an alternative strategy to optimize the metal/n-AlGaN contact by introducing a heterostructure with a polarization effect and by etching a recess structure through the heterostructure beneath the n-contact metal. Experimentally, we inserted an n-AlGaN layer into an AlGaN p-n diode on the n-AlGaN layer to form a heterostructure, where a high interface electron concentration of 6 × 10 cm was achieved with the aid of a polarization effect.

Facile preparation and dielectric properties of BaTiO with different particle sizes and morphologies.

BaTiO nanoparticles were prepared by the hydrothermal method, and the effect of 1-(propyl-3-methoxysilyl)-3-methylimidazole chloride on the size of BaTiO particles was investigated. The obtained BaTiO was characterized by XRD, SEM, TEM, and Raman spectroscopy; and the dielectric properties of BaTiO ceramic sheets were tested. The results indicate that the spherical BaTiO-N prepared without an ionic liquid was in a tetragonal phase with an average particle size of 129 nm.

Molecular basis of transport of surface functionalised gold nanoparticles to pulmonary surfactant.

Ligands like alkanethiol ( dodecanethiol, hexadecanethiol, ) and polymers ( poly(vinyl pyrrolidone), polyethylene glycol-thiol) capped to the gold nanoparticles (AuNPs) are widely used in biomedical field as drug carriers and as promising materials for probing and manipulating cellular processes. Ligand functionalised AuNPs are known to interact with the pulmonary surfactant (PS) monolayer once reaching the alveolar region. Therefore, it is crucial to understand the interaction between AuNPs and PS monolayers.

Mechanical properties of an interpenetrating network poly(vinyl alcohol)/alginate hydrogel with hierarchical fibrous structures.

Bioinspired hierarchical fibrous structures were constructed in an interpenetrating poly(vinyl alcohol, PVA)/alginate hydrogel network to improve its mechanical properties. The interpenetrating hydrogel network with hierarchical fibrous structures was prepared by combining the confined drying method and freeze-thaw method. First, Ca cross-linked alginate formed a nano-micro hierarchical fibrous structure the confined drying method.

Quasi-2D Growth of Aluminum Nitride Film on Graphene for Boosting Deep Ultraviolet Light-Emitting Diodes.

Efficient and low-cost production of high-quality aluminum nitride (AlN) films during heteroepitaxy is the key for the development of deep ultraviolet light-emitting diodes (DUV-LEDs). Here, the quasi-2D growth of high-quality AlN film with low strain and low dislocation density on graphene (Gr) is presented and a high-performance 272 nm DUV-LED is demonstrated. Guided by first-principles calculations, it is found that AlN grown on Gr prefers lateral growth both energetically and kinetically, thereby resulting in a Gr-driven quasi-2D growth mode.

Catalytic oxidation of NO over MnO -CoO /TiO in the presence of a low ratio of O/NO: activity and mechanism.

In order to broaden the temperature range of NO oxidation reaction in flue gas and maintain high oxidation efficiency, various loading amounts of MnO -CoO /TiO mesoporous catalysts were tested in the catalytic oxidation of NO. It was found that 15%MnO -CoO (2 : 1)/TiO demonstrated the best adsorption performance to oxygen species and contained more oxygen vacancies, as well as the best surface oxygen mobility, thus exhibiting excellent NO catalytic oxidation activity. O (O/NO < 1) combined with 15%MnO -CoO (2 : 1)/TiO improved the oxidation efficiency of NO at 50-400 °C, especially below 250 °C.

A LiPOF/LiPF dual-salt electrolyte enabled stable cycling performance of nickel-rich lithium ion batteries.

In this work, a dual-lithium salt was proposed for constructing an electrolyte for high energy density lithium ion batteries. LiPOF was composed with traditional LiPF to enhance the high voltage performance of the electrolyte. The electrochemical performance of the NCM811/Li cells with LiPOF/LiPF dual-lithium salt at 2.

New insights into the organic fouling mechanism of an Ca modified thin film composite forward osmosis membrane.

In this study, the effect of organic substances on the fouling behavior of a thin film composite (TFC) membrane with Ca addition (TFC-Ca membrane) was evaluated. Bovine serum albumin (BSA), humic acid (HA) and sodium alginate (SA) were used as surrogate foulants for protein, natural organic substances and polysaccharides, respectively, thus enabling the analysis of foulant-membrane interaction in the membrane fouling process. Fouling experiments were carried out and the fouling mechanism was investigated by extended Derjaguin-Landau-Verwey-Overbeek (XDLVO) theory.

Green synthesis of benzonitrile using ionic liquid with multiple roles as the recycling agent.

Preparation of benzonitrile from benzaldehyde and hydroxylamine hydrochloride is one of the most advantageous approaches. Nevertheless, it suffers from various constraints such as longer reaction time, corrosion and recovery of hydrochloric acid, the use of metal salt catalysts and their separation. For these reasons, a novel green benzonitrile synthetic route was proposed with ionic liquid as the recycling agent in this study.

What will happen when thermoresponsive poly(-isopropylacrylamide) is tethered on poly(ionic liquid)s?

The thermoresponsive ionic liquid diblock copolymer of poly[1-(4-vinylbenzyl)-3-methylimidazolium tetrafluoroborate]--poly(-isopropylacrylamide) (P[VBMI][BF]--PNIPAM) containing a hydrophilic poly(ionic liquid) block of P[VBMI][BF] is prepared by sequential reversible addition-fragmentation chain transfer (RAFT) polymerization. This P[VBMI][BF]--PNIPAM exhibits an abnormal thermoresponsive phase transition at a temperature above the phase transition temperature (PTT) of the PNIPAM block. For P[VBMI][BF]--PNIPAM including a short P[VBMI][BF] block, its aqueous solution becomes turbid at a temperature above the PTT of the thermoresponsive PNIPAM block, whereas for P[VBMI][BF]--PNIPAM containing a relatively long P[VBMI][BF] block even in the case of a relatively long PNIPAM block, the aqueous solution remains transparent at a temperature far above the PTT of the PNIPAM block, although a soluble-to-insoluble phase transition of the PINIPAM block is confirmed by dynamic light scattering (DLS) analysis and variable temperature H NMR analysis.