Theoretical and experimental studies together show phosphorene as a highly potent polysulfide immobilizer for lithium–sulfur batteries, enabling high capacity, good rate capability, excellent cycling stability.

Transition-metal dichalcogenide (TMD) nanolayers show potential as high-performance catalysts in energy conversion and storage devices. Synthetic TMDs produced by chemical-vapor deposition (CVD) methods tend to grow parallel the growth substrate. Here, we that with right precursors appropriate tuning of CVD conditions, ReS2 nanosheets can be made orient perpendicular This accomplishes two important objectives; first, it drastically increases wetted or exposed surface area sheets, second,...

Cobalt-catalysed sp(2) C-H bond functionalization has attracted considerable attention in recent years because of the low cost cobalt complexes and interesting modes action process. In comparison, much less efforts have been devoted to sp(3) carbons. Here we report cobalt-catalysed site-selective dehydrogenative cyclization aliphatic amides via a process on unactivated carbons with assistance bidentate directing group. This method provides straightforward synthesis monocyclic spiro β- or...

Rational regulation on polysulfide behaviors is of great significance in pursuit reliable solution-based lithium-sulfur (Li-S) battery chemistry. Herein, we develop a unique polymeric zwitterion (PZI) to establish smart Li-S batteries. The zwitterionic nature PZI integrates sulfophilicity and lithiophilicity the matrix, fostering an ionic environment for selective ion transfer through chemical interactions with lithium polysulfides (LiPS). When implemented as functional interlayer cell...

Although single-function camouflage under infrared/visible bands has made great advances, it is still difficult for materials to cope with the synergy detection spanning both visible and infrared spectra adapt complex variable scenarios. Herein, a trilayer composite integrating thermal insulation, heat absorption, solar/electro-thermal conversions, thermochromism fabricated dual camouflages by combining anisotropic MXene/reduced graphene oxide hybrid aerogel n-octadecane phase change...

Using utg-C₃N₄/TiO₂, a photoelectrochemical platform was designed for the sensing of global antioxidant capacity, which presented rapid response, and anti-fouling colour-interference-proof properties.

The next generation of deformable and shape-conformable electronics devices will need to be powered by batteries that are not only flexible but also foldable. Here we report a foldable lithium–sulfur (Li–S) rechargeable battery, with the highest areal capacity (∼3 mAh cm–2) reported date among all types energy-storage devices. key this result lies in use fully superelastic carbon nanotube current-collector films impregnation active materials (S Li) into current-collectors checkerboard...

Two new graphene allotropes, penta-graphene and phagraphene, have been proposed recently with unique electronic properties,<italic>e.g.</italic>quasi-direct band gap, direction-dependent Dirac cones tunable Fermi velocities.

A nickel-catalyzed direct sulfenylation of unactivated arenes using removable 2-(pyridine-2-yl)-isopropylamine as a directing group has been developed.

Abstract Stimuli‐triggered changes in the emission color of functional materials are demand for a variety potential applications. Herein, strategy to reversibly phototune fluorescence cholesteric liquid crystal (CLC) with self‐organized luminescent helical superstructure via resonance energy transfer (FRET) is developed. This dynamic FRET system constructed by doping 1,2‐dithienyldicyanoethene‐based chiral fluorescent photoswitch (switch 7 ) as an acceptor and conventional coumarin dye C6...

The brain-storm of designing low-cost and commercialized eutectic electrolytes for zinc (Zn)-based electrochemical energy storage (ZEES) remains unresolved attractive, especially when implementing it at low temperatures. Here, we report an appealing layout advancing chlorine-functionalized (Cl-FE) via exploiting Cl anion-induced interaction with Zn acetate solutions. This novel liquid shows high affinity to collaborate 1,3-dioxolane (DOL) is prone constitute Cl-FE/DOL-based a unique...

Although conductive hydrogel-based flexible electronic devices have superb flexibility and high conductivities, they tend to malfunction in dry or frigid areas. Herein, an ultralow-temperature tolerant, antidrying, composite hydrogel is designed for skin applications on the basis of synergy double-cross-linked polymer networks, Hofmeister effect, electrostatic interaction fabricated by situ free radical polymerization 2-acrylamido-2-methyl-1-propanesulfonic acid acrylic presence poly(vinyl...

Transition metal phosphides (TMPs) have emerged as promising anode materials for lithium-ion batteries (LIBs). However, their poor intrinsic conductivity and significant volume changes result in slow redox kinetics structural collapse during cycling, which hinder practical application. Here, a hierarchical hybrid is synthesized by evenly dispersing Ni2P particles with N-doped carbon encapsulation on Co(OH)2 nanosheets (Co(OH)2/Ni2P@N–C). This distinctive structure enhances electron/ion...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAb Initio Calculations on Small Molecule Analogs of PolycarbonatesH. Sun, S. J. Mumby, R. Maple, and A. T. HaglerCite this: Phys. Chem. 1995, 99, 16, 5873–5882Publication Date (Print):April 1, 1995Publication History Published online1 May 2002Published inissue 1 April 1995https://pubs.acs.org/doi/10.1021/j100016a022https://doi.org/10.1021/j100016a022research-articleACS PublicationsRequest reuse permissionsArticle Views679Altmetric-Citations138LEARN...

Graphene oxide (GO) is considered as one of the most promising layered materials with tunable physical properties and applicability in many important engineering applications. In this work, interfacial behavior multilayer GO films was directly investigated via GO-to-GO friction force microscopy, shear strength (ISS) measured to be 5.3 ± 3.2 MPa. Based on high resolution atomic microscopy images available chemical data, targeted molecular dynamics simulations were performed evaluate influence...

Cobalt-catalyzed decarboxylative cross-coupling of oxazoles and thiazoles with α-oxocarboxylic acids was developed through an sp(2) C-H bond functionalization process. This work represents the first example cobalt-catalyzed provides efficient means building some important bioactive heteroaryl ketone derivatives.

A novel early and late transition-metal relay catalysis has been developed by combining a gold-catalyzed cycloisomerization Yb(OTf)3-catalyzed diastereoselective [3 + 2] cycloaddition with aziridines in selective C-C bond cleavage mode. Various biologically significant complex nitrogen-containing spiro heterocycles were rapidly constructed from readily available starting materials under mild conditions.

A near-infrared light-driven self-organized emissive helical superstructure was constructed by doping a new chiral fluorescent photoswitch and upconversion nanoparticles (UCNPs) into nematic LC. The reversible switching of circularly polarized luminescence (CPL) can be achieved modulating the power intensity 980 nm NIR excitation light.

Titanium (Ti) implants are widely used in medicine. Meanwhile, surface modification of Ti can strengthen the osseointegration implants. In this study, we modified implant surfaces, which was coated with GO, HA, HA-2wt%GO and HA-5wt%GO via electrophoresis deposition, to investigate their mechanisms biological activity. Uncoated as control. Further, examined behavior osteogenic performance mouse bone marrow mesenchymal stem cells (BMSCs) cultured on coatings vitro. We found that HA-GO...

Bacterial infections are one of the major contributing factors to human mortality, which can cause secondary damage injured area, such as leading inflammation, tissue death, and even personal death. Herein, we developed a novel cyclodextrin (CD)-modified amphiphilic microgel with 3D network nanostructure that encapsulates hydrophilic indocyanine green (ICG) trigger for photothermal therapy (PTT) hydrophobic N,N'-disubstituted-butyl-N,N'-dinitro-1,4-benzenediamine (BNN6) heat-sensitive nitric...

The incorporation of a trideuteromethyl group in diverse pharmaceutical building blocks and drug-like molecules serves as valuable strategy medicinal industrial chemistry. Trideuteromethylation reactions have gained significant, continuous attention at rapid pace recent years. However, the lack known trideuteromethylated reagents prevents range applications terms substrate reaction type. In this study, we report synthesis application thianthrenium triflate (TT-CD3+OTf−) trideuteromethylating...