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The dissolution of a polymeric solid typically starts with the absorption of solvent molecules, followed by swelling and volume expansion. Only when the extent of swelling reaches a threshold can the polymer chains be disentangled and then dissolved into the solvent. When the polymeric solid is encapsulated in a rigid shell, the swelling process will be impeded. Despite the widespread use of this...
Highly efficient thermoelectric materials require, including point defects within the host matrix, secondary phases generating positive effects on lowering lattice thermal conductivity (κL). Amongst effective dopants for a functional thermoelectric material, SnTe, Cu doping realizes the ultra‐low κL approaching the SnTe amorphous limit. Such effective κL reduction is first attributed to strong phonon...
The fiber‐shaped aqueous battery (FSAB) has the advantages of flexibility, portability and safety making it promising for energy storage applications. In particular, FSABs based on metal wire current collectors with good electrical conductivity can provide excellent energy storage properties. However, the low adhesion caused by the smooth surface of the metal wire and the unavailability of many electrochemically...
Magnetic field enhanced electrocatalysis has recently emerged as a promising strategy for the development of a viable and sustainable hydrogen economy via water oxidation. Generally, the effects of magnetic field enhanced electrocatalysis are complex including magnetothermal, magnetohydrodynamic and spin selectivity effects. However, the exploration of magnetic field effect on the structure regulation...
An RhFe bimetallene with Fe atoms doped into Rh host for efficient hydrogen evolution reaction (HER), is constructed. When two doped Fe atoms occupy neighboring asymmetric spatial positions, their asymmetric exchange interaction drives electron hopping between the dxy orbital of a Fe atom and the dz2 orbital of its neighboring Fe atom to push the d band center closer to the Fermi level as a result...
It is desirable for secondary batteries to have high capacities and long lifetimes. This paper reports the use of Na2FeS2 with a specific structure consisting of edge‐shared and chained FeS4 as the host structure and as a high‐capacity active electrode material. An all‐solid‐state sodium cell that uses Na2FeS2 exhibits a high capacity of 320 mAh g−1, which is close to the theoretical two‐electron...
The possibility to precisely control important properties of nanoparticles (NPs) such as their size, morphology, surface charge, or doping content is crucial for enhancing the performance of existing solutions beyond the state‐of‐the‐art and for enabling novel applications. In this work, custom‐tailored ZnxFe3−xO4 NPs are synthesized at different Zn doping concentrations to augment and expand their...
The therapeutic outcomes of oral nanomedicines against colon cancer are heavily compromised by their lack of specific penetration into the internal tumor, favorable anti‐tumor activity, and activation of anti‐tumor immunity. Herein, hydrogen peroxide (H2O2)/ultrasound (US)‐driven mesoporous manganese oxide (MnOx)‐based nanomotors are constructed by loading mitochondrial sonosensitizers into their...
Halide perovskites with various compositions are potential candidates in low‐dosage X‐ray detection due to their large sensitivity and tunable optoelectronic properties. Here, cations engineering induced dimensional evolution of halide perovskites between 0D, 2D, and 3D is reported. Centimeter‐sized 2D lead‐free perovskite single‐crystal of 4‐fluorophenethylammonium antimony iodide (FPEA3SbI6) is...
Limited by the insufficient active sites and the interference from breath humidity, designing reliable gas sensing materials with high activity and moisture resistance remains a challenge to analyze human exhaled breath for the translational application of medical diagnostics. Herein, the dual sensing and cooperative diagnosis is achieved by utilizing metal‐organic frameworks (MOFs) and its derivative...
Recent advances in nanolithography, miniaturization, and material science, along with developments in wearable electronics, are pushing the frontiers of sensor technology into the large‐scale fabrication of highly sensitive, flexible, stretchable, and multimodal detection systems. Various strategies, including surface engineering, have been developed to control the electrical and mechanical characteristics...
Exploration of advanced carbon anode material is the key to circumventing the sluggish kinetics and poor rate capability for potassium ion storage. Herein, a synergistic synthetic strategy of engineering both surface and structure is adopted to design N, S co‐doped carbon nanotubes (NS‐CNTs). The as‐designed NS‐CNTs exhibit unique features of defective carbon surface, hollow tubular channel, and enlarged...
Lithium batteries occupy the large‐scale electric mobility market raising concerns about the environmental impact of cell production, especially regarding the use of poly(vinylidene difluoride) (teratogenic) and N‐methyl‐2‐pyrrolidone (NMP, harmful). To avoid their use, an aqueous electrode processing route is utilized in which a water‐soluble hybrid acrylic‐fluoropolymer together with sodium carboxymethyl...
Herein, a sequential gas‐phase process involving air jet milling followed by chemical vapor deposition (CVD), is demonstrated to be an efficient strategy for the fabrication of heterolayered 2D nanohybrids (2DNHs) decorated with nanocatalysts. Tens of grams of the nanohybrids, which is a substantial quantity at the laboratory scale, are produced in the absence of solvents and water, and without the...
Intensive research is underway to further enhance the performance of lithium‐ion batteries (LIBs). To increase the capacity of positive electrode materials, Li‐rich layered oxides (LLO) are attracting attention but have not yet been put to practical use. The structural mechanisms through which LLO materials exhibit higher capacity than conventional materials remain unclear because their disordered...
Liquid metals (LMs) play a growing role in flexible electronics and connected applications. Here, LMs come into direct contact with metal electrodes thus allowing for corrosion and additional alloying, potentially compromising device stability. Nevertheless, comprehensive studies on the interfacial interaction of the materials are still sparse. Therefore, a correlated material interaction study of...
In this study, manganese‐based multiply hierarchical chiral supraparticles (SPs), with an anisotropy factor (g‐factor) of 0.102 and circular dichroism (CD) intensity of 260 mdeg at 530 nm, are successfully synthesized with polar‐solvent‐mediated strategies. Notably, the g‐factor of the SPs is further enhanced to 0.121 by the addition of an external chiral solvent, generating a chiral biased environment,...
In biomolecular electronics, the role of structural order in charge transport (CT) is poorly understood. It has been reported that the metal oxide cores of protein cages (e.g., iron oxide and ferrihydrite nanoparticles (NPs) present in ferritin and E2‐LFtn, which is E2 protein engineered with an iron‐binding sequence) play an important role in the mechanism of CT. At the same time, the NP core also...
Nowadays, artificial intelligence (AI) creates numerous promising opportunities in the life sciences. AI methods can be significantly advantageous for analyzing the massive datasets provided by biotechnology systems for biological and biomedical applications. Microfluidics, with the developments in controlled reaction chambers, high‐throughput arrays, and positioning systems, generate big data that...
Selective electrocatalytic nitrate‐to‐ammonia conversion holds significant potential in treatment of nitrate wastewater and simultaneously produces high‐value‐added ammonia. However, today's development of nitrate‐to‐ammonia technology remains hindered by the lack of electrocatalysts with high activity and selectivity. In this work, metal‐organic framework‐derived CuPd bimetallic nanoparticles/nitrogen‐doped...
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