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One of the difficulties limiting covalent organic frameworks (COFs) from becoming excellent adsorbents is their stacking/aggregation architectures owing to poor morphology/structure control during the synthesis process. Herein, an inorganic‐organic nanoarchitectonics strategy to synthesize the MXene/COF heterostructure (Ti3C2Tx/TAPT‐TFP) is developed by the assembly of β‐ketoenamine‐linked COF on...
Materials with low thermal conductivity have received significant attention across various research fields, including thermal insulation materials, thermal barrier coatings, and thermoelectric materials. Exploring novel materials with intrinsically low thermal conductivity and investigating their phonon transport properties, chemical bonding, and atomic coordination are crucial. In this study, a novel...
Asymmetric Bonding
In article number 2304718, Zhengyang Zhou, Xun Shi, and co‐workers present an innovative approach for achieving low thermal conductivity through the incorporation of low‐coordination atoms into transition metal dichalcogenides (TMDCs). The resulting asymmetric bonds formed by these low‐coordination ions induce strong phonon scattering, ultimately resulting in a substantial reduction...
Hg‐based chalcogenides, as good candidates for the exploration of high‐performance infrared (IR) nonlinear optical (NLO) materials, usually exhibit strong NLO effects, but narrow bandgaps. Herein, an unprecedented wide bandgap Hg‐based IR NLO material Zn2HgP2S8 (ZHPS) with diamond‐like structure is rationally designed and fabricated by a tetrahedron re‐organization strategy with the aid of structure...
Chloride‐ion batteries (CIBs) have drawn growing attention in large‐scale energy storage applications owing to their comprehensive merits of high theoretical energy density, dendrite‐free characteristic, and abundance of chloride‐containing materials. Nonetheless, cathodes for CIBs are plagued by distinct volume effect and sluggish Cl− diffusion kinetics, leading to inferior rate capability and short...
Copper‐based electrocatalysts effectively produce multicarbon (C2+) compounds during the electrochemical CO2 reduction (CO2RR). However, big challenges still remain because of the chemically unstable active sites. Here, cerium is used as a self‐sacrificing agent to stabilize the Cu+ of CuS, due to the facile Ce3+/Ce4+ redox. CeO2‐modified CuS nanoplates achieve high ethanol selectivity, with FE up...
A surface adsorption strategy is developed to enable the engineering of microcomposites featured with ultrahigh loading capacity and precise ratiometric control of co‐encapsulated peptides. In this strategy, peptide molecules (insulin, exenatide, and bivalirudin) are formulated into nanoparticles and their surface is decorated with carrier polymers. This polymer layer blocks the phase transfer of...
Heteroatom interaction of atomically thin nanomaterials enables the improvement of electronic transfer, band structure, and optical properties. Black phosphorus quantum dots (BP QDs) are considered to be candidate diagnostic and/or therapeutic agents due to their innate biocompatibility and exceptional photochemical effects. However, BP QDs are not competitive regarding second near‐infrared (NIR‐II)...
Water in motion presented in natural systems contains a rich source of renewable mechanical energy. Harvesting this water energy to trigger the generation of reactive oxygen species (ROS) for water purification is a desirable yet underexplored solution. Herein, the authors report a self‐powered water motion triggered Fenton‐like reaction system for wastewater treatment through the piezo‐activation...
Hard carbon (HC) is a promising anode material for sodium‐ion batteries, but the performance remains unsatisfactory and the sodiation mechanism in HC is one of the most debated topics. Here, from self‐assembled cellulose nanocrystal sheets with crystallographic texture, unique HC nanosheets with vertically oriented (002) planes are fabricated and used as a model HC to investigate the sodiation mechanisms...
Ionic Diodes
In article number 2100383, Xinyu Liu and co‐workers utilize horizontally aligned multi‐walled carbon nanotubes (MWCNTs) with polyelectrolyte decorated terminals as ion nanochannels to construct ionic diodes. The working mechanism of the CNT‐based ionic diode is systematically investigated through both numerical simulations and experiments. A general guideline for designing 1D nanochannel‐polyelectrolyte‐based...
The rectification of ion transport through biological ion channels has attracted much attention and inspired the thriving invention and applications of ionic diodes. However, the development of high‐performance ionic diodes is still challenging, and the working mechanisms of ionic diodes constructed by 1D ionic nanochannels have not been fully understood. This work reports the systematic investigation...
In recent years, atomically thin superconductors, including atomically thin elemental superconductors, single layer FeSe films, and few‐layer cuprate superconductors, have been studied extensively. This hot research field is mainly driven by the discovery of significant superconductivity enhancement and high‐temperature interface superconductivity in single‐layer FeSe films epitaxially grown on SrTiO...
The spin‐gapless semiconductors (SGSs) are a new class of zero‐gap materials which have fully spin polarized electrons and holes. They bridge the zero‐gap materials and the half‐metals. The band structures of the SGSs can have two types of energy dispersion: Dirac linear dispersion and parabolic dispersion. The Dirac‐type SGSs exhibit fully spin polarized Dirac cones, and offer a platform for massless...
Ultraviolet‐visible‐near infrared (UV‐Vis‐NIR) broadband detection is important for image sensing, communication, and environmental monitoring, yet remains as a challenge in achieving high external quantum efficiency (EQE) in the broad spectrum range. Herein, sensitive broadband integrated photodetectors (PDs) with high EQE levels are reported. The organic bulk‐heterojunction (OBHJ) layer, based on...
A crucial challenge in nanotherapies is achieving accurate and real‐time control of the therapeutic action, which is particularly relevant in local thermal therapies to minimize healthy tissue damage and necrotic cell deaths. Here, a nanoheater/thermometry concept is presented based on magnetoplasmonic (Co/Au or Fe/Au) nanodomes that merge exceptionally efficient plasmonic heating and simultaneous...
Fullerene‐free OSCs employing n‐type small molecules or polymers as the acceptors have recently experienced a rapid rise with efficiencies exceeding 12%. Owing to the good optoelectronic and morphological tunabilities, non‐fullerene acceptors exhibit great potential for realizing high‐performance and practical OSCs. In this Review, recent exciting progress made in developing highly efficient non‐fullerene...
Introducing heterojunction is an effective way for improving the intrinsic photocatalytic activity of a graphitic carbon nitride (GCN) semiconductor. These heterostructures are mostly introduced by interfacing GCN with foreign materials that normally have entirely different physicochemical properties and show unfavorable compatibility, thus resulting in a limited improvement of the photocatalytic...
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