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Microbial fuel cells (MFCs) are of great potential for wastewater remediation and chemical energy recovery. Nevertheless, limited by inefficient electron transfer between microorganisms and electrode, the remediation capacity and output power density of MFCs are still far away from the demand of practical application. Herein, a pore‐matching strategy is reported to develop uniform electroactive biofilms...
MXenes are considered a promising negative electrode material for potassium ion batteries (PIBs) in view of their low potassium ion diffusion barrier and excellent electrical conductivity. However, the stacking phenomenon in practical applications severely reduces their active surface and leads to slow K+ diffusion. Herein, a facile composite template method is proposed to construct stacking‐resistance...
Bismuth (Bi) has attracted attention as a promising anode for sodium‐ion batteries (SIBs) owing to its suitable potential and high theoretical capacity. However, the large volumetric changes during cycling leads to severe degradation of electrochemical performance and limits its practical application. Herein, Bi nanoflowers are encapsulated in N‐doped carbon frameworks to construct a novel Bi@NC composite...
How to collaboratively reduce Cr(VI) and break Cr(III) complexes is a technical challenge to solve chromium‐containing wastewater (CCW) pollution. Solar photovoltaic (SPV) technology based on semiconductor materials is a potential strategy to solve this issue. Sb2S3 is a typical semiconductor material with total visible‐light harvesting capacity, but its large‐sized structure highly aggravates disordered...
A cross‐linking strategy can result in a three‐dimensional network of interconnected chains for the copolymers, thereby improving their mechanical performance. In this work, a series of cross‐linked conjugated copolymers, named PC2, PC5, and PC8, constructed with different ratios of monomers are designed and synthesized. For comparison, a random linear copolymer, PR2 is also synthesized based on the...
Developing novel synthetic strategies to downsize metal‐organic frameworks (MOFs) from polydisperse crystals to monodisperse nanoparticles is of great importance for their potential bioapplications. In this work, a novel synthetic strategy termed gelothermal synthesis is proposed, in which coordination polymer gel is first prepared and followed by a thermal reaction to give the monodisperse MOF nanoparticles...
It remains a challenge to develop efficient noble metal‐free electrocatalysts for the oxygen reduction reaction (ORR) in various renewable energy systems. Single atom catalysts have recently drawn great attention as promising candidates both due to their high activity and their utmost atom utilization for electrocatalytic ORR. Herein, the synthesis of an efficient ORR electrocatalyst that is composed...
Tendon stem/progenitor cells (TSPCs) therapy is a promising strategy for enhancing cell matrix and collagen synthesis, and regulating the metabolism of the tendon microenvironment during tendon injury repair. Nevertheless, the barren microenvironment and gliding shear of tendon cause insufficient nutrition supply, damage, and aggregation of injected TSPCs around tendon tissues, which severely hinders...
Nowadays, the exploration of electromagnetic (EM) wave absorbers with anticorrosion to improve the survivability and environmental adaptability of military targets in the harsh environments is becoming an attractive and unavoidable challenge. Herein, through modulation of the metal composition in the precursors, the core@shell structure Prussian blue analog‐derived NiCo@C, CoFe@C, NiFe@C, and NiCoFe@C...
Self‐assembly of cellulose nanocrystals (CNCs) is invaluable for the development of sustainable optics and photonics. However, the functional failure of CNC‐derived materials in humid or liquid environments inevitably impairs their development in biomedicine, membrane separation, environmental monitoring, and wearable devices. Here, a facile and robust method to fabricate insoluble hydrogels in a...
Hard carbons (HCs) with high sloping capacity are considered as the leading candidate anode for sodium‐ion batteries (SIBs); nevertheless, achieving basically complete slope‐dominated behavior with high rate capability is still a big challenge. Herein, the synthesis of mesoporous carbon nanospheres with highly disordered graphitic domains and MoC nanodots modification via a surface stretching strategy...
Organic ferromagnetic materials offer great promise for spintronic devices, carbon‐based chips, and quantum communications, but remain as a challenging issue due to their low saturation magnetization and/or unsustainable ferromagnetic properties. To date, magnetic ion polymers have displayed paramagnetism without exception at room‐temperature. In this study, it is reported for the first time that,...
Magnetoelectric Multifunctional Nanodevices
In article number 2206824, Run‐Wei Li, Xiaojian Zhu, and co‐workers demonstrate the selective dual‐ion manipulation in a Pt/HfO2−x/NiOy/Ni magnetoelectric nanodevice and the reconfiguration of its magnetoresistance. A proof‐of‐concept magnetoelectric device with integrated memory and encryption functionality is designed for the secure storage of information...
Nanoionic technologies are identified as a promising approach to modulating the physical properties of solid‐state dielectrics, which have resulted in various emergent nanodevices, such as nanoionic resistive switching devices and magnetoionic devices for memory and computing applications. Previous studies are limited to single‐type ion manipulation, and the investigation of multiple‐type ion modulation...
Electrocatalytic hydrogen evolution reaction (HER) in alkaline media is important for hydrogen economy but suffers from sluggish reaction kinetics due to a large water dissociation energy barrier. Herein, Pt5P2 nanocrystals anchoring on amorphous nickel phosphate nanorods as a high‐performance interfacial electrocatalyst system (Pt5P2 NCs/a‐NiPi) for the alkaline HER are demonstrated. At the unique...
With an extremely high theoretical energy density, poly(ethylene oxide) (PEO)‐based solid‐state lithium‐sulfur (Li‐S) batteries are emerging as one of the most feasible and safest battery storage systems. However, the long‐term cycling performance is severely impeded by polysulfides (Li2Sn, n = 4–8) shuttling and terrible electrode passivation from the electronic insulating Li2S. Here, a novel cathode...
Two‐dimensional (2D) mesoporous polymers, combining the advantages of organic polymers, porous materials, and 2D materials, have received great attention in adsorption, catalysis, and energy storage. However, the synthesis of 2D mesoporous polymers is not only challenged by the complex 2D structure construction, but also by the low yield and difficulty in controlling the dynamics of the assembly during...
The development of highly active carbon‐based bifunctional electrocatalysts for both the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) is highly desired, but still full of challenges in rechargeable Zn–air batteries. Metal organic frameworks (MOFs) and covalent organic frameworks (COFs) have gained great attention for various applications due to their attractive features of structural...
Droplet impact is a ubiquitous phenomenon in nature, daily life, and industrial processes. It is thus crucial to tune the impact outcomes for various applications. As a special outcome of droplet impact, the bouncing of droplets keeps the form of the droplets after the impact and minimizes the energy loss during the impact, being beneficial in many applications. A unified understanding of droplet...
2D heterostructures provide a competitive platform to tailor electrical property through control of layer structure and constituents. However, despite the diverse integration of 2D materials and their application flexibility, tailoring synergistic interlayer interactions between 2D materials that form electronically coupled heterostructures remains a grand challenge. Here, the rational design and...
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