Single atomic metal-N-C materials have attracted immense interest as promising candidates to replace noble metal-based electrocatalysts for the oxygen reduction reaction (ORR). The coordination environment of active centers plays a critical role in determining their catalytic activity and durability, however, attention is focused only on metal atoms. Herein, Fe single atoms clusters co-embedded N-doped carbon (Fe/NC) that deliver synergistic enhancement pH-universal ORR catalysis via...

Limited by preparation time and ligand solubility, synthetic protocols for cyclodextrin-based metal-organic framework (CD-MOF), as well subsequent derived materials with improved stability properties, still remains a challenge. Herein, an ultrafast, environmentally friendly, cost-effective microwave method is proposed, which induced graphene oxide (GO) to design CD-MOF/GOs. This applicable technique can control the crystal size of CD-MOFs from macro- nanocrystals. CD-MOF/GOs are investigated...

It is still a challenging task to develop facile and scalable process synthesize porous hybrid materials with high electrochemical performance. Herein, strategy developed for the synthesis of few-layer MoS2 incorporated into hierarchical carbon (MHPC) nanosheet composites as anode both Li- (LIB) Na-ion battery (SIB). An inexpensive oleylamine (OA) introduced not only serve hinder stacking nanosheets but also provide conductive carbon, allowing large scale production. In addition, SiO2...

Sulfur powder was coated with poly(3,4-ethylenedioxythiophene)–polystyrenesulfonic acid (PEDOT:PSS) using a wet mixing process in water. The modified sulfur material investigated for use as cathode lithium-sulfur (Li-S) batteries. surface modification the conducting polymer identified Fourier transform infrared (FTIR) spectra, scanning electron microscopy (SEM), and high-resolution transmission (HR-TEM) analyses. Electrochemical evaluation revealed that PEDOT:PSS leads to increases initial...

Abstract Polymeric metal phthalocyanines have great potential as electrocatalysts, yet their incorporation on a current collector without losing the activity of centers remains challenge. Herein, new strategy for preparing series polymeric cobalt containing S linkers ( p CoPc‐1) or SO 2 CoPc‐2) and tunable electrochemical properties are reported. The CoPcs coated various substrates show favorable electrocatalytic activities toward oxygen hydrogen evolution reactions (OER HER). Particularly,...

Abstract Metal phthalocyanine (Pc) complexes are considered to be promising functional organic materials owing their tunable properties and unique π‐electron structure. Despite these advantages, the application of polymeric metal Pc into lithium–sulfur (LiS) batteries has yet explored. Herein, this work demonstrates a molecular design multifunctional cobalt with triethylene glycol linkers (TCP) that provide redox mediating capability for Co ion in center Pc, strong polar interaction N atoms...

Abstract Few‐layer black phosphorus (BP) is an emerging 2D material suitable for energy applications. However, its controllable preparation remains challenging. Herein, a highly efficient route presented the scalable production of few‐layered BP nanosheets using pulsed laser in low‐boiling point solvents. Changing irradiation time, energy, and solvent type leads to precise control over layer number lateral size with narrow distribution. The process understood by plasma quenching mechanism...

There is a growing need to improve the electrical conductivity of cathode and suppress rapid capacity decay during cycling in lithium–sulfur (Li–S) batteries. This can be achieved by developing facile methods for synthesis novel nanostructured carbon materials that function as effective hosts. In this Article, we report scalable ordered mesoporous nanosheets (OMCNS) via etching self-assembled iron oxide/carbon hybrid (IO–C NS), which serve an advanced sulfur host Li–S The obtained...

A wide range of green solvents are explored to process TIPS-PEN (6,13-bis(triisopropylsilylethynyl)pentacene), and several other p- n-type organic semiconductors for their potential generality in fabricating thin-film transistors.

Abstract Although lithium‐air batteries (LABs) are considered the promising alternative of existing lithium–ion owing to their high energy density 11 680 W h kg −1 , practical applications limited by technical issues, such as unstable solid electrolyte interface and dendrite formation from metal anode insufficient bifunctional activities durability cathode catalyst. In order resolve these bottlenecks, carbon nanostructures have been investigated surface area, excellent electrical...

Wearable and stretchable strain sensors have potential values in the fields of human motion health monitoring, flexible electronics, soft robotic skin. The wearable can be directly attached to skin, providing visualized detection for motions personal healthcare. Conductive polymer composites (CPC) composed conductive fillers polymers advantages high stretchability, good flexibility, superior durability, which used prepare with large working outstanding sensitivity. This review has put...

End-of-life lithium-ion batteries (LIBs) constitute an "urban mine" that offers a great opportunity to repurpose the metal species. However, direct and cross-domain reuse of their functional materials has been ignored. Herein, we report case study upcycling LIB cathode, LiFePO4 particles embedded in N-doped carbon spheres (LFP/C), single-atomic (SA) electrocatalyst for oxygen reduction reaction (ORR). Using top-down leaching method, LFP/C was converted Fe SA-embedded hollow containing minor...

Regulating lithium (Li) plating/stripping behavior in three‐dimensional (3D) conductive scaffolds is critical to stabilizing Li metal batteries (LMBs). Surface protrusions and roughness these can induce uneven distributions of the electric fields ionic concentrations, forming “hot spots.” Hot spots may cause uncontrollable dendrites growth, presenting significant challenges cycle stability safety LMBs. To address issues, we construct a conductive‐dielectric gradient bifunctional interlayer...

A nanostructured material of sulfur-loaded monodisperse carbon nanocapsules anchored on a graphene nanosheet was prepared for application to Li–S batteries.

To meet the ever-increasing market requirements for energy storage devices with improved performances, lithium-sulfur (Li-S) batteries high theoretical capacity and density have been extensively studied. However, to bring Li-S into real life, several challenges still need be overcome, such as dissolution of intermediate polysulfides, large volume change, low electrical conductivity sulfur. In this study, phosphorus-doped graphene anchored well-dispersed cerium oxide nanocrystals (CeO2/PG)...

Graphene nanocomposites have attracted much attention in many applications due to their superior properties. However, preparing graphene requires a time-consuming thermal treatment reduce the or synthesize nanomaterials, most cases. We present an ultrafast synthesis of carbon-coated silicon-graphene nanocomposite using commercial microwave system. Electrochemically exfoliated is used as novel susceptor deliver efficient energy conversion. Unlike oxide, it does not require pre-thermal...

The use of a conducting interlayer between separator and cathode is one the most promising methods to trap lithium polysulfides (LiPSs) for enhancing performance lithium-sulfur (Li-S) batteries. Red phosphorus nanoparticles (RPEN )-coated carbon nanotube (CNT) film @CF) reported herein as novel Li-S batteries, which shows strong chemisorption LiPSs, good flexibility, excellent electric conductivity. A pulsed laser ablation method engaged ultrafast production RPEN uniform morphology, are...