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.
High internal phase emulsions (HIPEs) have been of great interest for fabricating fluorinated porous polymers having controlled pore structures and excellent physicochemical properties. However, it remains a challenge to prepare stable fluorocarbon HIPEs, due to the lack of suitable surfactants. By randomly grating hydrophilic and fluorophilic side chains to polyphosphazene (PPZ), a comb‐like amphiphilic...
Humidity‐responsive materials hold broad application prospects in sensing, energy production, and other fields. Particularly, humidity‐sensitive, flexibility, and water resistance are pivotal factors in the development of optimized humidity‐responsive materials. In this study, hydrophobic linear polyurethane and hydrophilic 4‐vinylphenylboronic acid (4‐VPBA) form a semi‐intercross cross‐linking network...
Photothermal treatment (PTT) has emerged as a promising avenue for biofilm elimination, yet its potential drawbacks, such as local hyperpyrexia and bacterial heat resistance, have posed challenges. To address these concerns, an innovative nanoplatform (Au@mSiO2‐arg/ICG) is devised that integrates phototherapeutic and gas therapeutic functionalities. This multifaceted nanoplatform is composed of mesoporous...
Silicon nanotubes (SNTs) have been considered as promising anode materials for lithium‐ion batteries (LIBs). However, the reported strategies for preparing SNTs generally have special requirements for either expensive templates or complex catalysts. It is necessary to explore a cost‐effective and efficient approach for the preparation of high‐performance SNTs. In this work, a biphasic transformation...
Anode materials with high‐rate performances and good electrochemical stabilities are urgently required for the grid‐scale application of lithium‐ion batteries (LIBs). Theoretically, transition metal borides are desirable candidates because of their appropriate working potentials and good conductivities. However, the reported metal borides exhibit poor performances owing to their lack of favorable...
The transformation of the two‐electron oxygen reduction reaction (2e‐ORR) to produce hydrogen peroxide (H2O2) is a promising green synthesis approach that can replace the high‐energy consumption anthraquinone process. However, designing and fabricating low‐cost, non‐precious metal electrocatalysts for 2e‐ORR remains a challenge. In this study, a method of combining complexation precipitation and thermal...
Metal–support interaction (MSI) provides great possibilities to tune the activity, selectivity, and stability of heterogeneous catalysts. Herein, the Au/ZnO catalyst is prepared by commercial ZnO and chloroauric acid, and the structure evolution of the catalyst pretreated by H2 and O2 gas at varied temperature is investigated to provide mechanistic insights of MSI. It is found that the H2 treatment...
As a high energy density power system, lithium–carbon dioxide (Li–CO2) batteries play an important role in addressing the fossil fuel crisis issues and alleviating the greenhouse effect. However, the sluggish transformation kinetic of CO2 and the difficult decomposition of discharge products impede the achievement of large capacity, small overpotential, and long life span of the batteries, which require...
Covalent Organic Frameworks
In article number 2304989, Lei‐Lei Liu, Zhongyue Li, and co‐workers synthesize a calix[4]arene‐derived covalent organic framework (COF)‐C4A‐benzothiadiazole (BTD), which exhibits high crystallinity and features a non‐interpenetrating undulating 2D layered structure with AA‐stacking. COF‐C4A‐BTD has an appropriate electron donor‐acceptor and energy band structures which...
The calixarenes are ideal building blocks for constructing photocatalytic covalent organic frameworks (COFs), owing to their electron‐rich and bowl‐shaped π cavities that endow them with electron‐donating and adsorption properties. However, the synthesis and structural confirmation of COFs based on calixarenes are still challenging due to their structural flexibility and conformational diversity....
Silicon (Si) is considered the most promising anode material for the next generation of lithium‐ion batteries (LIBs) because of its high theoretical specific capacity and abundant reserves. However, the volume expansion of silicon in the cycling process causes the destruction of the electrode structure and irreversible capacity loss. As a result, the commercial application of silicon materials is...
Tunnel oxide passivating contact (TOPCon) solar cells (SCs) as one of the most competitive crystalline silicon (c‐Si) technologies for the TW‐scaled photovoltaic (PV) market require higher passivation performance to further improve their device efficiencies. Here, the successful construction of a double‐layered polycrystalline silicon (poly‐Si) TOPCon structure is reported using an in situ nitrogen...
The high conductivities and good mechanical properties of hydrogel electrolyte films are critical for energy storage devices with high flexibility, fast redox kinetics, and long life. Herein, a low water content (6.63 wt%) hydrogel film is prepared, and a favorable environment is created, with an electrochemical stability window of 2.26 V and a high ionic conductivity of 2.6 mS cm−1. The hydrogel...
Lithium‐rich manganese‐based layered oxides (LRM) have garnered considerable attention as cathode materials due to their superior performance. However, the inherent structural degradation and obstruction of ion transport during cycling lead to capacity and voltage decay, impeding their practical applications. Herein, an Sb‐doped LRM material with local spinel phase is reported, which has good compatibility...
Magnetic Nanoparticles
In article number 2302686, Jiurong Liu, Zhihui Zeng, and co‐workers report a type of N‐doped carbon nanotube encapsulated CoNi alloy nanocomposites with diverse heterostructures, which deliver excellent electromagnetic wave absorption performance involving a minimum reflection loss of −84.0 dB at the thickness of 3.2 mm and a maximum effective bandwidth of 4.3 GHz.
Developing carbon encapsulated magnetic composites with rational design of microstructure for achieving high‐performance electromagnetic wave (EMW) absorption in a facile, sustainable, and energy‐efficiency approach is highly demanded yet remains challenging. Here, a type of N‐doped carbon nanotube (CNT) encapsulated CoNi alloy nanocomposites with diverse heterostructures are synthesized via the facile,...
Superlattice Films
Work function difference induces spontaneous charge donation and band bending at the interfaces of superlattices, which causes optimization effects of modulation doping and energy filtering, leading to remarkably enhanced thermoelectric performances. This optimizing strategy is successfully elucidated in 1T′‐MoTe2/Bi2Te3 superlattice films. Meanwhile, the rational manipulation of...
Interfacial charge effects, such as band bending, modulation doping, and energy filtering, are critical for improving electronic transport properties of superlattice films. However, effectively manipulating interfacial band bending has proven challenging in previous studies. In this study, (1T′‐MoTe2)x(Bi2Te3)y superlattice films with symmetry‐mismatch were successfully fabricated via the molecular...
2D Dion–Jacobson (DJ) phase hybrid perovskites have shown great promise in the photoelectronic field owing to their outstanding optoelectronic performance and superior structural rigidity. However, DJ phase lead‐free double perovskites are still a virgin land with direct X‐ray detection. Herein, we have designed and synthesized a new DJ phase lead‐free layered double perovskite of (HIS)2AgSbBr8 (1...
It is facing a tremendous challenge to develop the desirable hybrids for photocatalytic H2 generation by integrating the advantages of a single semiconductor. Herein, an all‐sulfide ZnIn2S4/CdS/PdS heterojunction is constructed for the first time, where CdS and PdS nanoparticles anchor in the spaces of ZnIn2S4 micro‐flowers due to the confinement effects. The morphology engineering can guarantee rapid...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.