The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Chemical Etching
The controlled voltage‐assisted chemical etching (ECE) and metal‐assisted chemical etching (MaCE) of silicon at the micro and nano scales represent two sides of the same coin, as illustrated in the cover art. In article number 2400499, Salvatore Surdo and Giuseppe Barillaro provide a unique understanding of ECE and MaCE technologies, highlighting the most recent advancements and exploring...
Oxygen Exchange
The link between the macro‐ and nanoworld is one of the most important aspects of modern nanoscience. A unique phenomenon related to the effective oxygen exchange between SnO2 and Si surface, resembling a natural volcanic process and occurring at the nanoscale during the growth of a layer of SnO2 due to the thermodynamic instability of the system, has been discovered. More in article...
SERS Sensing Platform
A novel approach involved with simulation realizes plasmonic nanostructures with broadened resonances, undesired absorptive losses, and inhomogeneous field enhancement. This design showcases technological aspects for high SERS enhancement, holding potential for sensitive sensing application. More In article number 2311937, Thorsten Feichtner, Muhammad Y. Bashouti, and co‐workers...
Here, a phenomenon of efficient oxygen exchange between a silicon surface and a thin layer of tin dioxide during chemical vapor deposition is presented, which leads to a unique Sn:SiO2 layer. Under thermodynamic conditions in the temperature range of 725–735 °C, the formation of nanostructures with volcano‐like shapes in “active” and “dormant” states are observed. Extensive characterization techniques,...
Thermoelectric Power Generation
In article number 2403020, Gang Pei, Bin Zhao, Chongwen Zou, and co‐workers present an innovative all‐day power generation strategy that adaptively integrates diurnal photothermal and nocturnal radiative cooling processes into the thermoelectric generator via a spectrally dynamically modulated coating, which opens up new possibilities for continuous power supply during...
Heterogeneous catalysts have attracted extensive attention among various emerging catalysts for their exceptional oxygen evolution reaction (OER) capabilities, outperforming their single‐component counterparts. Nonetheless, the synthesis of heterogeneous materials with predictable, precise, and facile control remains a formidable challenge. Herein, a novel strategy involving the decoration of catalysts...
The simple and low‐cost construction of a 3D network structure is an ideal way to prepare high‐performance electromagnetic wave (EMW) absorption materials. Herein, a series of carbon skeleton/carbon nanotubes/Ni3ZnC0.7 composites (CS/CNTs/Ni3ZnC0.7) are successfully prepared by in situ growth of Ni3ZnC0.7 and CNTs on 3D melamine sponge carbon. With the increase of precursor, Ni3ZnC0.7 nanoparticles...
Pathogen Detection
In article number 2308317, Kyoung G. Lee, Seunghwa Ryu, Taejoon Kang, and co‐workers describe the on‐site detection of multiple foodborne bacteria using 3D nanostructure swab and deep learning‐based classification of bacterial Raman spectra. The authors analyzed multiple bacterial species captured on the 3D nanostructure using their Raman signals and employed the Grad‐CAM method...
Metal‐Air Batteries
The diversified chemical environment of Co cations with the coordination of Co‐S, Co‐S‐C and Co‐Nx‐C in the Co‐S@NC nanocrystal induces the transition of Co 3d orbitals to a high spin‐state, which accelerates the oxygen reduction reaction and oxygen evolution reaction electrocatalytic kinetics of the Co‐S@NC, boosting the performance of metal‐air batteries. More in article number...
Energy conversion from the environment into electricity is the most direct and effective electricity source to sustainably power off‐grid electronics, once the electricity requirement exceeds the capability of traditional centralized power supply systems. Normally photovoltaic cells have enabled distributed power generation during the day, but do not work at night. Thus, efficient electricity generation...
The electronic states of metal catalysts can be redistributed by the rectifying contact between metal and semiconductor e.g., N‐doped carbon (NC), while the interfacial regulation degree is very limited. Herein, a deep electronic state regulation is achieved by constructing a novel double‐heterojunctional Co/Co3O4@NC catalyst containing Co/Co3O4 and Co3O4/NC heterojunctions. When used for dilute electrochemical...
Nanosized drug formulations are broadly explored for the improvement of cancer therapy. Prediction of in vivo nanoparticle (NP) behavior, however, is challenging, given the complexity of the tumor and its microenvironment. Microfluidic tumor‐on‐a‐chip models are gaining popularity for the in vitro testing of nanoparticle targeting under conditions that simulate the 3D tumor (microenvironment). In...
Global healthcare based on the Internet of Things system is rapidly transforming to measure precise physiological body parameters without visiting hospitals at remote patients and associated symptoms monitoring. 2D materials and the prevailing mood of current ever‐expanding MXene‐based sensing devices motivate to introduce first the novel iridium (Ir) precious metal incorporated vanadium (V)‐MXene...
Solid‐state batteries (SSBs) are under development as high‐priority technologies for safe and energy‐dense next‐generation electrochemical energy storage systems operating over a wide temperature range. Solid‐state electrolytes (SSEs) exhibit high thermal stability and, in some cases, the ability to prevent dendrite growth through a physical barrier, and compatibility with the “holy grail” metallic...
The industrialization of lithium–sulfur (Li–S) batteries faces challenges due to the shuttling effect of lithium polysulfides (LiPSs) and the growth of lithium dendrites. To address these issues, a simple and scalable method is proposed to synthesize 2D membranes comprising a single layer of cubic graphitic cages encased with few‐layer, curved MoS2. The distinctive 2D architecture is achieved by confining...
The fabrication of perovskite single crystal‐based optoelectronics with improved performance is largely hindered by limited processing techniques. Particularly, the local halide composition manipulation, which dominates the bandgap and thus the formation of heterostructures and emission of multiple‐wavelength light, is realized via prevalent liquid‐ or gas‐phase anion exchange with the utilization...
Mn2+/MnO2 aqueous battery is a promising candidate for large‐scale energy storage owing to its feature of low‐cost and abundant crustal reserves. However, the inherent MnO2 shedding issue results in a limited areal capacity and poor cycling life, which prohibits its further commercialization. In this manuscript, it is revealed that the cause of shedding is the cracking of MnO2 layer due to stress...
Prussian blue analogues (PBAs) have emerged as highly promising cathode materials for sodium‐ion batteries (SIBs) due to their affordability, facile synthesis, porous framework, and high theoretical capacity. Despite their considerable potential, practical applications of PBAs face significant challenges that limit their performance. This review offers a comprehensive retrospective analysis of PBAs'...
Inert inorganic nano‐building blocks, such as carbon nanotubes (CNTs) and boron nitride (BN) nanosheets, possess excellent physicochemical properties. However, it remains challenging to build aerogels with these inert nanomaterials unless they are chemically modified or compounded with petrochemical polymers, which affects their intrinsic properties and is usually not environmentally friendly. Here,...