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Copper is a vital micronutrient for lives and an important ingredient for bactericides and fungicides. Given its indispensable biological and agricultural roles, there is an urgent need to develop simple, affordable, and reliable methods for detecting copper in complicated matrixes, particularly in underdeveloped regions where costly standardized instruments and sample dilution procedures hinder progress...
The research on systems with coexistence of superconductivity and nontrivial band topology has attracted widespread attention. However, the limited availability of material platforms severely hinders the research progress. Here, it reports the first experimental synthesis and measurement of high‐quality single crystal van der Waals transition‐metal dichalcogenide InNbS2, revealing it as a topological...
Designing artificial interface is a promising strategy to protect Zn metal anode but achieving long Zn plating/stripping lifespans and efficient nucleation/deposition kinetics, particularly at high current densities, remains a challenge. In this study, a permselective zincophilic heterogeneous interface consisting of metallic Ag layer and poly(3,4‐ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS)...
Heteroatom‐doped porous carbon materials with distinctive surface properties and capacitive behavior have been accepted as promising candidates for supercapacitor electrodes. Currently, the researches mainly focus on developing facile synthetic method and unveiling the structure‐activity relationship to further elevate their capacitive performance. Here, the B, N co‐doped porous carbon sheet (BN‐PCS)...
In this work, inspired by the great advantage of the unique “brick‐mortar” layered structure as electromagnetic interference (EMI) shielding materials, a multifunctional flexible graphene nanosheets (GNS)/polytetrafluoroethylene (PTFE) composite film with excellent EMI shielding effects, impressive Joule heating performance, and light‐to‐heat conversion efficiency is fabricated based on the self‐emulsifying...
Deformation twinning merits attention because of its intrinsic importance as a mode of energy dissipation in solids. Herein, through the atomistic electron microscopy observations, the size‐dependent twinning mechanisms in refractory body‐centered cubic molybdenum nanocrystals (NCs) under tensile loading are shown. Two distinct twinning mechanisms involving the nucleation of coherent and inclined...
Boosting charge separation and transfer of photoanodes is crucial for providing high viability of photoelectrochemical hydrogen (H2) generation. Here, a structural engineering strategy is designed and synthesized for uniformly coating an ultrathin CoFe bimetal‐organic framework (CoFe MOF) layer over a BiVO4 photoanode for boosted charge separation and transfer. The photocurrent density of the optimized...
Morphological control of noble‐metal‐based nanocrystals has attracted enormous attention because their catalytic behaviors can be optimized well by adjusting the size and shape. Herein, the controllable synthesis of web‐footed PdCu nanosheets via a facile surfactant‐free method is reported. It is discovered that the Cu(II) precursor in this synthetic system displays a critical role in growing branches...
Pursuing high areal energy density and developing scalable fabrication strategies of micro‐batteries are the key for the progressive printed microelectronics. Herein, the scalable fabrication of multi‐layer printable lithium ion micro‐batteries (LIMBs) with ultrahigh areal energy density and exceptional flexibility is reported, based on highly conductive and mechanically stable inks by fully incorporating...
Hydrogen Evolution Reaction
In article number 2103866, Weiyong Yuan, Chang Ming Li, and co‐workers report the synthesis of high‐density macropores‐oriented CoP‐impregnated 3‐D N‐doped carbon‐sheets nanostructure via self‐assembly, demonstrating superior hydrogen evolution reaction catalytic performance even compared to commercial Pt/C, and thus great potential for industry‐scale hydrogen production...
3D ZIF‐67‐particles‐impregnated cellulose‐nanofiber nanosheets with oriented macropores are synthesized via directional‐freezing‐assisted in situ self‐assembly, and converted to 3D CoP‐nanoparticle (NP)‐embedded hierarchical, but macropores‐oriented, N‐doped carbon nanosheets via calcination and phosphidation. The obtained nanoarchitecture delivers overpotentials at 10 and 50 mA cm−2 and Tafel slope...
2D bismuth nanosheets are a promising layered material for formate‐producing via electrocatalytic CO2 conversion. However, the commercial interest of bismuth nanosheets in CO2 electroreduction is still rare due to the undesirable current density for formate at moderate operation potentials (about 200 mA mg−1) and harsh synthesis conditions (high temperature and/or high pressure). This work reports...
It is a tough challenge for many decades to decipher the complex relationships between cell behaviors and cellular physical properties. Single particle tracking (SPT) with high spatial and temporal resolution has been applied extensively in cell research to understand physicochemical properties of cells and their bio‐functions by tracking endogenous or exogenous probes. This review describes the fundamental...
Infection with live‐attenuated vaccines always inevitably induces side effects that reduce their safety. This study suggests a concept of magnetic virus produced by genetically modifying viral surfaces with Fe3O4 nanoparticles (NPs) to control their tropisms. An iron‐affinity peptide is designed to be displayed on the viral surface protein (VP1) of human enterovirus type 71 (EV71), a typical nonenveloped...
Exploiting efficient electrocatalysts for electrochemical nitrogen reduction (NRR) is highly desired and deeply meaningful for realizing sustainable ammonia (NH3) production under ambient conditions. The Fe protein contains one [Fe4S4] cluster and P cluster, which play an important role for transfer electron during the nitrogen fixing of nitrogenases. Based on the understanding of nitrogenase, the...
Perforated ultrathin Pd nanosheets with crystalline/amorphous heterostructures are rationally synthesized to offer a large electrochemically active surface area of 172.6 m2 g−1 and deliver a 5.6 times higher apparent reaction rate in comparison to commercial Pd/C, thus offering a facile confined growth method to generate superior catalysts.
Nanocarrier‐mediated codelivery of multiple anticancer drugs is a potential strategy for enhanced efficacy of combination cancer treatment by unifying differential pharmacokinetic properties and maintaining an optimal ratio of drug cargoes. However, a programmable codelivery system is highly desired to deliver different therapeutics to their specific sites of action to pursue maximized combinational...
In article number 1902998, Ran Mo and co‐workers develop a liposome‐based assembly for site‐specific delivery of an apoptotic protein and a tumor‐suppressor gene. The liposome can deliver cargoes to their differential intracellular targets as represented by the melting snow from the mountains feeding two rivers, therefore enhancing the combined anticancer effect as represented by the rivers joining...
Tin diselenide (SnSe2) nanosheets as novel 2D layered materials have excellent optical properties with many promising application prospects, such as photoelectric detectors, nonlinear optics, infrared photoelectric devices, and ultrafast photonics. Among them, ultrafast photonics has attracted much attention due to its enormous advantages; for instance, extremely fast pulse, strong peak power, and...
Tin diselenide (SnSe2) nanosheets as novel 2D layered materials have excellent optical properties. In article number 1902811, Xiao‐Hui Li and co‐workers characterize SnSe2 nanosheets systemically and successfully apply SnSe2 nanosheets in an Er‐doped fiber laser to obtain 31th order subpicosecond harmonic mode‐locking, corresponding to a 257.3‐MHz repetition rate.
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