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Exploiting active and stable non‐precious metal electrocatalysts for alkaline hydrogen evolution reaction (HER) at large current density plays a key role in realizing large‐scale industrial hydrogen generation. Herein, a self‐supported microporous Ni(OH)x/Ni3S2 heterostructure electrocatalyst on nickel foam (Ni(OH)x/Ni3S2/NF) that possesses super‐hydrophilic property through an electrochemical process...
Rationally modulating the catalytic microenvironment is important for targeted induction of specific molecular behaviors to fulfill complicated catalytic purposes. Herein, a metal pre‐chelating assisted assembly strategy is developed to facilely synthesize the hollow carbon spheres with ultrafine ruthenium clusters embedded in pore channels of the carbon shell (Ru@Shell‐HCSs), which can be employed...
Ultrafine Ruthenium Clusters
In article number 2201361, Xuebin Lu and co‐workers develop ultrafine ruthenium clusters shell‐embedded hollow nanoreactors for the efficient furfural tandem hydrogenation with preferred electronic and geometric catalytic microenvironments. The channel microenvironment‐driven synergy between reinforced interfacial metal‐support charge transfer and prolonged molecular diffusion...
To fully leverage the power of image simulation to corroborate and explain patterns and structures in atomic resolution microscopy, an initial correspondence between the simulation and experimental image must be established at the outset of further high accuracy simulations or calculations. Furthermore, if simulation is to be used in context of highly automated processes or high‐throughput optimization,...
It is an effective strategy to develop novel electrocatalysts with controllable defects to enhance their electrocatalytic activity and stability. However, how to precisely design these catalysts on the atom scale remains very difficult. Herein, several vacancy‐dependent CoZnxMn2–xO4 catalysts are prepared through tailoring the concentration of Zn ions. The in situ activation of the obtained products...
Carbon materials have been widely considered as the frameworks in lithium (Li) metal anodes due to their lightweight, high electrical conductivity, and large specific surface area. Various heteroatom‐doping strategies have been developed to enhance the lithiophilicity of carbon frameworks, thus rendering a uniform Li nucleation in working Li metal batteries. The corresponding lithiophilicity chemistry...
Mesoporous metal sulfides (MMSs) with high surface areas and large pore volumes show great potential in many applications such as gas sensing, photodetection, and catalysis. However, the synthesis of MMSs is still challenging due to the uncontrollable fast precipitation between metal ions and S2− ions and the large volume contraction during the conversion of metal precursors to sulfides. Here, a general...
Hard carbons (HCs) are emerging as promising anodes for potassium‐ion batteries (PIBs) due to overwhelming advantages including cost effectiveness and outstanding physicochemical properties. However, the fundamental K+ storage mechanism in HCs and the key structural parameters that determining K+ storage behaviors remain unclear and require further exploration. Herein, HC materials with controllable...
Engineering high‐performance electrocatalysts is of great importance for energy conversion and storage. As an efficient strategy, element doping has long been adopted to improve catalytic activity, however, it has not been clarified how the valence state of dopant affects the catalytic mechanism and properties. Herein, it is reported that the valence state of a doping element plays a crucial role...
Potassium ion hybrid capacitors (PIHCs) are of particular interest benefiting from high energy/power densities. However, challenges lie in the kinetic mismatch between battery‐type anode and capacitive‐type cathode, as well as the difficulty in achieving optimized charge/mass balance. These significantly sacrifice the electrochemical performance of PIHCs. Here, strategies including charge/mass balance...
Electromagnetic (EM) wave absorption materials have attracted considerable attention because of EM wave pollution caused by the proliferation of electronic communication devices. One‐dimentional (1D) structural magnetic metals have potential as EM absorption materials. However, fabricating 1D core–shell bimetallic magnetic species is a significant challenge. Herein, 1D core–shell bimetallic magnetic...
Targeting programmed cell death protein 1 (PD‐1)/programmed death ligand 1 (PD‐L1) immunologic checkpoint blockade with monoclonal antibodies has achieved recent clinical success in antitumor therapy. However, therapeutic antibodies exhibit several issues such as limited tumor penetration, immunogenicity, and costly production. Here, Bristol‐Myers Squibb nanoparticles (NPs) are prepared using a reprecipitation...
Despite the promises of applying nano‐photosensitizers (nano‐PSs) for photodynamic therapy (PDT) against cancer, severe tumor hypoxia and limited tumor penetration of nano‐PSs would lead to nonoptimized therapeutic outcomes of PDT. Therefore, herein a biocompatible nano‐PS is prepared by using tamoxifen (TAM), an anti‐estrogen compound, to induce self‐assembly of chlorin e6 (Ce6) modified human serum...
The study of circulating tumor cells (CTCs) offers pathways to develop new diagnostic and prognostic biomarkers that benefit cancer treatments. In order to fully exploit and interpret the information provided by CTCs, the development of a platform is reported that integrates acoustics and microfluidics to isolate rare CTCs from peripheral blood in high throughput while preserving their structural,...
In article number 1801131, Ming Dao, Tony Jun Huang, and co‐workers develop an acoustofluidic device design, which employs an acoustic enclosure and a divider, and enables the isolation of rare circulating tumor cells from peripheral blood in high throughput while preserving their structural, biological, and functional integrity.
In article number 1800288, Ye Zhou, Su‐Ting Han, Vellaisamy A. L. Roy, and co‐workers develop a biological spiking synaptic device with important synaptic behaviors constructed from solution processed bimetal core‐shell nanoparticle based composites. This work demonstrates that the polymer–metal nanoparticle composites based artificial synaptic devices have great potential for the realization of a...
Inspired by the highly parallel processing power and low energy consumption of the biological nervous system, the development of a neuromorphic computing paradigm to mimic brain‐like behaviors with electronic components based artificial synapses may play key roles to eliminate the von Neumann bottleneck. Random resistive access memory (RRAM) is suitable for artificial synapse due to its tunable bidirectional...
Transcription factor EB (TFEB) is a master regulator of autophagy and lysosomal biogenesis. Here, silver nanoparticles (Ag NPs)‐induced cytoprotective autophagy required TFEB is shown. Ag NPs‐induced nucleus translocation of TFEB through a well‐established mechanism involving dephosphorylation of TFEB at serine‐142 and serine‐211 but independent of both the mTORC1 and ERK1/2 pathways. TFEB nucleus...
Recently, the development of multifunctional theranostic nanoplatforms to realize tumor‐specific imaging and enhanced cancer therapy via responding or modulating the tumor microenvironment (TME) has attracted tremendous interests in the field of nanomedicine. Herein, tungsten disulfide (WS2) nanoflakes with their surface adsorbed with iron oxide nanoparticles (IONPs) via self‐assembly are coated with...
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