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Defect engineering is recognized as an attractive method for modulating the electronic structure and physicochemical characteristics of carbon materials. Exploiting heteroatom‐doped porous carbon with copious active sites has attracted great attention for capacitive deionization (CDI). However, traditional methods often rely on the utilization of additional heteroatom sources and strong corrosive...
There is increasing demand to power Internet of Things devices using ambient energy sources. Flexible, low‐temperature, organic/inorganic thermoelectric devices are a breakthrough next‐generation approach to meet this challenge. However, these systems suffer from poor performance and expensive processing preventing wide application of the technology. In this study, by combining a ferroelectric polymer...
Covalent organic frameworks (COFs) with flexible periodic skeletons and ordered nanoporous structures have attracted much attention as potential candidate electrode materials for green energy storage and efficient seawater desalination. Further improving the intrinsic electronic conductivity and releasing porosity of COF‐based materials is a necessary strategy to improve their electrochemical performance...
Antimony‐based chalcogenides have emerged as promising candidates for next‐generation thin film photovoltaics. Particularly, binary Sb2S3 thin films have exhibited great potential for optoelectronic applications, due to the facile and low‐cost fabrication, simple composition, decent charge transport and superior stability. However, most of the reported efficient Sb2S3 solar cells are realized based...
In this work, high‐performance epoxy resin (EP) composites with simultaneous excellent thermal conductivity (TC) and outstanding electromagnetic shielding properties are fabricated through the structural synergy of 1D carbon nanotubes and 2D silver‐modified boron nitride nanoplates (CNT/AgBNs) to erect microscopic 3D networks on long‐range carbon fiber (CF) felt skeletons. The line‐plane combination...
Vanadium trioxide (V6O13) cathode has recently aroused intensive interest for aqueous zinc‐ion batteries (AZIBs) due to their structural and electrochemical diversities. However, it undergoes sluggish reaction kinetics and significant capacity decay during prolonged cycling. Herein, an oxygen‐vacancy‐reinforced heterojunction in V6O13−x/reduced graphene oxide (rGO) cathode is designed through electrostatic...
Recently, metal 1halide perovskites have shown compelling optoelectronic properties for both light‐emitting devices and scintillation of ionizing radiation. However, conventional lead‐based metal halide perovskites are still suffering from poor material stability and relatively low X‐ray light yield. This work reports cadmium‐based all‐inorganic metal halides and systematically investigates the influence...
Humidity is one of the most important indicators affecting human health. Here, a pair of covalent organic frameworks (COFs) of positional isomers (p‐COF and o‐COF) for indoor humidity regulation is reported. Although p‐COF and o‐COF have the same sql topology and pore size, they exhibit different water adsorption behaviors due to the subtle differences in water adsorption sites. Particularly, o‐COF...
This work reports a portable, origami‐type paper device with a plasmonic fluor‐labeled microneedle sensing module for the multiplexed quantification of anemia biomarkers in whole blood. Sequential steps, including serum separation, target enrichment, and multiplexed readout by a gel imager, are rapidly accomplished with the flexible and highly integrated device. The microneedle array enabled efficient...
Inorganic cesium lead halide perovskite single crystals are particularly intriguing to ionizing radiation detection by virtue of their material stability and high attenuation coefficients. However, the growth of high‐quality inorganic perovskite single crystals remains challenging, mainly due to the limited solubility. In this work, an additive‐enhanced crystallization method is proposed for cesium...
Developing nature‐inspired nanomaterials with enzymatic activity is essential in combating bacterial biofilms. Here, it is reported that incorporating the carboxylic acid in phenolic/Fe nano‐networks can efficiently manipulate their peroxidase‐like activity via the acidic microenvironment and neighboring effect of the carboxyl group. The optimal gallic acid/Fe (GA/Fe) nano‐networks demonstrate highly...
Piezoelectric nanomaterials open new avenues in driving green catalysis processes (e.g., H2 evolution from water) through harvesting mechanical energy, but their catalytic efficiency is still limited. The predicted enormous piezoelectricity for 2D SnSe, together with its high charge mobility and excellent flexibility, renders it an ideal candidate for stimulating piezocatalysis redox reactions. In...
Atomically thin monolayer semiconducting transition metal dichalcogenides (TMDs), exhibiting direct band gap and strong light‐matter interaction, are promising for optoelectronic devices. However, an efficient band alignment engineering method is required to further broaden their practical applications as versatile optoelectronics. In this work, the band alignment of two vertically stacked monolayer...
For conventional polycrystalline Ni‐rich cathode material consisting of numerous primary particles in disordered orientation, the crystal anisotropy in charge/discharge process results in the poor rate capability and rapid capacity degradation. In this work, highly‐dispersed submicron single‐crystal LiNi0.8Co0.15Al0.05O2 (SC‐NCA) cathode is efficiently prepared by spray pyrolysis (SP) technique followed...
Exploiting spontaneous polarization of ferroelectric materials to achieve high charge separation efficiency is an intriguing but challenging research topic in solar energy conversion. This work shows that loading high work function RuO2 cocatalyst on BiFeO3 (BFO) nanoparticles enhances the intrinsic ferroelectric polarization by efficient screening of charges to RuO2 via RuO2/BFO heterojunction. This...
This article reports the fabrication of a smart biomimetic enzyme system, which incorporates a pH‐responsive chemodynamic therapy (CDT) combined with a photothermal (PTT) therapy approach in resolving the high recurrence rate of deadly cancers. The resulting enzyme system comprises copper sulfide (CuS) nanoparticle (NP) cores as Fenton‐like catalysts, and a photothermal‐active generation 5 poly(amidoamine)...
Flexible self‐standing transitional metal sulfides (TMSs)/carbon nanoarchitectures have attracted widespread research interests for sodium ion batteries (SIBs), thanks to their enormous capability to address intrinsic issues of TMSs for SIBs applications. However, controllable synthesis of hierarchical hybrid structures is always laborious and involves complicated procedures. Herein, a simple yet...
Hexagonal nickel‐organic framework (Ni‐MOF) [Ni(NO3)2·6H2O, 1,3,5‐benzenetricarboxylic acid, 4‐4′‐bipyridine] is fabricated through a one‐step solvothermal method. The {001} crystal plane is exposed to the largest hexagonal surface, which is an ideal structure for electron transport and ion diffusion. Compared with the surrounding rectangular crystal surface, the ion diffusion length through the {001}...
Lithium–sulfur (Li–S) batteries are considered as promising candidates for energy storage systems owing to their high theoretical capacity and high energy density. The application of Li–S batteries is hindered by several obstacles, however, including the shuttle effect, poor electrical conductivity, and the severe volume expansion of sulfur. The traditional method is to integrate sulfur with carbon...
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