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Injectable bioadhesives are attractive for managing gastric ulcers through minimally invasive procedures. However, the formidable challenge is to develop bioadhesives that exhibit high injectability, rapidly adhere to lesion tissues with fast gelation, provide reliable protection in the harsh gastric environment, and simultaneously ensure stringent standards of biocompatibility. Here, a natural bioadhesive...
A facile strategy is developed to fabricate 3 nm RuIrOx nanocrystals anchored onto N‐doped hollow carbon for highly efficient and pH‐universal overall water splitting and alkaline seawater electrolysis. The designed catalyst exhibits much lower overpotential and superior stability than most previously reported Ru‐ and Ir‐based electrocatalysts for hydrogen/oxygen evolution reactions. It also manifests...
The development of efficient and affordable electrode materials is crucial for clean energy storage systems, which are considered a promising strategy for addressing energy crises and environmental issues. Metal phosphorous chalcogenides (MPX3) are a fascinating class of two‐dimensional materials with a tunable layered structure and high ion conductivity, making them particularly attractive for energy...
Radiation‐induced heart disease (RIHD) is a common radiotherapy complication. Reducing radiation exposure and post‐irradiation antioxidant therapy are promising approaches. Here, a liquid metal‐based core–shell nanomedicine (LMN) composed of a gallium core and a multifunctional polymeric shell with radiopaque, X‐ray shielding, and X‐ray‐responsive antioxidation properties for preventive therapy of...
Since the discovery of graphene, research on the family of 2D materials has been a thriving field. Metal phosphorous chalcogenides (MPX3) have attracted renewed attention due to their distinctive physical and chemical properties. The advantages of MPX3, such as tunable layered structures, unique electronic properties, thermodynamically appropriate band alignments and abundant catalytic active sites...
Benefiting from the proton's small size and ultrahigh mobility in water, aqueous proton batteries are regarded as an attractive candidate for high‐power and ultralow‐temperature energy storage devices. Herein, a new‐type C4N polymer with uniform micropores and a large specific surface area is prepared by sulfuric acid‐catalyzed ketone amine condensation reaction and employed as the electrode of proton...
With the development of renewable energy systems, clean hydrogen is burgeoning as an optimal alternative to fossil fuels, in which its application is promising to retarding the global energy and environmental crisis. The hydrogen evolution reaction (HER), capable of producing high‐purity hydrogen rapidly in electrocatalytic water splitting, has received much attention. Abundant research about HER...
Emerging Fe bonded with heteroatom P in carbon matrix (FePC) holds great promise for electrochemical catalysis, but the design of highly active and cost‐efficient FePC structure for the electrocatalytic CO2 reduction reaction (CO2RR) and aqueous ZnCO2 batteries (ZCBs) is still challenging. Herein, polyhedron‐shaped bifunctional electrocatalysts, FeP nanocrystals anchored in N‐doped carbon polyhedrons...
Single‐atom catalysts (SACs) have attracted significant attention due to their superior catalytic activity and selectivity. However, the nature of active sites of SACs under realistic reaction conditions is ambiguous. In this work, high loading Pt single atoms on graphitic carbon nitride (g‐C3N4)‐derived N‐doped carbon nanosheets (Pt1/NCNS) is achieved through atomic layer deposition. Operando X‐ray...
N‐coordinated transition‐metal materials are crucial alternatives to design cost‐effective, efficient, and highly durable catalysts for electrocatalytic oxygen reduction reaction. Herein, the synthesis of uniformly distributed Cu−Zn clusters on porous N‐doped carbon, which are accompanied by Cu/Zn‐Nx single sites, is demonstrated. X‐ray absorption fine structure tests reveal the co‐existence of M−...
Development of cost‐effective, active trifunctional catalysts for acidic oxygen reduction (ORR) as well as hydrogen and oxygen evolution reactions (HER and OER, respectively) is highly desirable, albeit challenging. Herein, single‐atomic Ru sites anchored onto Ti3C2Tx MXene nanosheets are first reported to serve as trifunctional electrocatalysts for simultaneously catalyzing acidic HER, OER, and ORR...
Exploring the origin of transition metal (TM) lattice‐doped layered double hydroxides (LDHs) toward the oxygen evolution reaction (OER) plays a crucial role in engineering efficient electrocatalysts. Without understanding the physics behind the TM‐induced catalytic enhancements, it would be challenging to design the next generation of electrocatalysts. Herein, single Ru atoms are introduced into a...
In article number 1905825, Yuan Qiu, Xijun Liu, and co‐workers design a simple yet novel strategy to develop oxygen‐doped Nb4N5 by introducing nitrogen‐vacancy. The catalyst exhibits efficient performance for selective conversion of CO2 to CO and simultaneous excellent durability. The work provides a new perspective for an in‐depth understanding toward the structure–activity relationship between defects...
Surface vacancy engineering holds great promise for boosting the electrocatalytic activity for CO2 reduction reaction; however, the vacancies are generally unstable and may degrade into the inactive phase during electrolysis. Stabilizing the vacancy‐enriched structure by heteroatoms can be an effective strategy to get a robust and active catalyst. Herein, a nitrogen‐vacancy enriched Nb4N5 on N‐doped...
Biodegradable polycaprolactone (PCL) has been widely applied as a scaffold material in tissue engineering. However, the PCL surface is hydrophobic and adsorbs nonspecific proteins. Some traditional antifouling modifications using hydrophilic moieties have been successful but inhibit cell adhesion, which is not ideal for tissue engineering. The PCL surface is modified with bioinspired zwitterionic...
The CO2 reduction reaction (CO2RR) driven by renewable electricity represents a promising strategy toward alleviating the energy shortage and environmental crisis facing humankind. Cu species, as one type of versatile electrocatalyst for the CO2RR, attract tremendous research interest. However, for C2 products, ethanol formation is commonly less favored over Cu electrocatalysts. Herein, AuCu alloy...
In article number 1902229, Jia He, Xijun Liu, and co‐workers report a self‐supported catalyst comprised of Cu submicrocone arrays hybridized with AuCu alloy nanoparticles for highly active CO2 electroreduction. The catalyst exhibits enhanced performance with high ethanol selectivity as well as excellent durability. This work can provide a fascinating insight into the construction of hybrid catalysts...
In article number 1901304, Zewei Quan and co‐workers report the fabrication of free‐standing 2D honeycomb‐like gold superstructures by a simple method, which combines liquid interface‐mediated nanoparticle assembly with metallic attachment. Such ordered mesoporous superstructures are structurally stable and exhibit uniformly enhanced electromagnetic fields at the hexagonally arranged mesopore sites...
2D mesoporous materials fabricated via the assembly of nanoparticles (NPs) not only possess the unique properties of nanoscale building blocks but also manifest additional collective properties due to the interactions between NPs. In this work, reported is a facile and designable way to prepare free‐standing 2D mesoporous gold (Au) superstructures with a honeycomb‐like configuration. During the fabrication...
Herein, a unique ganoderma‐like MoS2/NiS2 hetero‐nanostructure with isolated Pt atoms anchored is reported. This novel ganoderma‐like heterostructure can not only efficiently disperse and confine the few‐layer MoS2 nanosheets to fully expose the edge sites of MoS2, and provide more opportunity to capture the Pt atoms, but also tune the electronic structure to modify the catalytic activity. Because...
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