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How to control the stability of oil‐in‐water (O/W) emulsions is one of the main topics for scientists working in colloidal systems. Recently, carbon dots (CDs) have received great interest as smart materials because of their excellent physicochemical properties and versatile applications. Herein, for the first time, advanced and switchable O/W emulsions are presented that are stabilized by the synergistic...
Aggredation‐induced electrochemiluminescence (AIECL) promises an efficient strategy for synthesize highly luminescent emitter and co‐reactant for ECL analysis, however, rational control of electrogenerated emission intensity is still challenging. The low electroconductivity and amorphous molecular configuration are intrinsic bottleneck. This work reveals the impact of polyvinyl pyrrolidone backbone...
The rational design of ingenious strategies to boost the intrinsic activity and stability of ruthenium (Ru) is of great importance for the substantial progression of water electrolysis technology. Based on Mott–Schottky effect, electronic regulation within a metal/semiconductor hybrid electrocatalyst represents a versatile strategy to boost the electrochemical performance. Herein, a typical Mott–Schottky...
Ternary architecture has been widely demonstrated as a facile and efficient strategy to boost the performance of organic solar cells (OSCs). However, the rational design of the third component with suitable core and end‐group modification is still a challenge. Herein, two new small‐molecule (SM) donors BT‐CN and BT‐ER, featuring the identical conjugated backbone with distinct end group, have been...
Water/Methanol Coelectrolysis
NiCo2S4 is developed through electrochemical deposition on carbon cloth, with the surface magnetism fine‐tuned. The surface spin enhanced NiCo2S4 electrodes possess high stable bifunctional performance even in high current density in water/methanol coelectrolysis system. Hydrogen and value‐added formate are harvested on both sides of the electrodes in the membrane‐less...
Nickel based materials are promising electrocatalysts to produce hydrogen from water in alkaline media. However, the stability is of great challenge, limiting its practical material functions. Herein, a new technique for electro‐deposition flower‐like NiCo2S4 nanosheets on carbon‐cloth (CC@NiCo2S4) is proposed for energy‐saving production of H2 from water/methanol coelectrolysis at high current density...
Surface states are one of the crucial factors determining the phase stability of formamidinium‐based perovskites. Compared with other compositions, exclusive lattice strain in FAPbI3 perovskite generates defects at the surface more readily, making them more vulnerable at the surface and easier to trigger the phase transition from α‐phase to the non‐perovskite δ‐phase. In order to regulate the surface...
Deformations triggered by body heat are desirable in the context of shape‐morphing applications because, under the majority of circumstances, the human body maintains a higher temperature than that of its surroundings. However, at present, this bioenergy‐triggered action is primarily limited to soft polymeric networks. Thus, herein, the programming of body temperature‐triggered deformations into rigid...
Room‐temperature sodium‐sulfur (RT‐Na‐S) batteries are attracting increased attention due to their high theoretical energy density and low‐cost. However, the traditional RT‐Na‐S batteries assembled with glass fiber (GF) separators are still hindered by the polysulfide shuttle effect and sodium dendrite growth, limiting the battery's capacity and cycling stability. Here, a facile and effective method...
Ethanol Oxidation Reaction
In article number 2203506, Xinlong Tian and co‐workers prepare 2D ternary Pd3Pt1Rh0.1 nanorings with efficient ethanol oxidation reaction performance via a facile one‐pot solvothermal approach, and systematic studies are carried out to reveal the mechanisms of the enhanced performance and C–C bond selectivity. The density functional theory calculations show that the introduction...
High Performance Pt–Co Electrocatalysts
Pt–Co electrocatalysts have been widely studied in many electrochemical reactions. In article number 2204100, Jing‐Li Luo, Xian‐Zhu Fu, and co‐workers summarize the recent progress in the syntheses, structure and applications of Pt–Co electrocatalysts. This will help readers to design and understand electrocatalysts for different applications.
Pt–Co electrocatalysts have attracted significant attention because of their excellent performance in many electrochemical reactions. This review focuses on Pt–Co electrocatalysts designed and prepared for electrocatalytic applications. First, the various synthetic methods and synthesis mechanisms are systematically summarized; typical examples and core synthesis parameters are discussed for regulating...
Ethanol as a fuel for direct ethanol fuel cells (DEFCs) has the advantages of being highly energetic, environmentally friendly, and low−cost, while the slow anodic ethanol oxidation reaction (EOR), intermediate poisoning effect, and incomplete oxidation of ethanol became obstacles to the development of DEFCs. Herein, a 2D ternary cyclic Pd3Pt1Rh0.1 nanorings (NRs) catalyst with efficient EOR performance...
Tin chalcogenides are regarded as promising anode materials for potassium ion batteries (PIBs) due to their considerable specific capacity. However, the severe volume effect, limited electronic conductivity, and the shuttle effect of the potassiation product restrict the application prospect. Herein, based on the metal evaporation reaction, a facile structural engineering strategy for yolk–shell SnSe...
Heterostructures play an irreplaceable role in high‐performance optoelectronic devices. However, the preparation of robust perovskite heterostructures is challenging due to spontaneous interdiffusion of halogen anions. Herein, a vapor‐phase anion exchange method universally suitable for the preparation of robust 2D Ruddlesden–Popper perovskite (RPP) heterostructures is developed. A variety of heterostructures...
The precise and comprehensive manipulation of the component, size, and geometric nano‐architecture of platinum‐based electrocatalysts into porous and hollow structure can effectively impart the catalysts with substantially improved electrochemical performance, yet remain formidably challenging. Herein, a straightforward fabrication of porous platinum‐copper alloyed nanobowls (abbreviated as Pt3Cu...
Neural stem cells (NSCs) are used to treat various nervous system diseases because of their self‐renewal ability and multidirectional differentiation potential. However, an insufficient ability to track their migration in vivo and poor control over their survival and differentiation efficiency are two major critical challenges for clinical application. Here, it is shown that when magnetic nanobubbles...
Photodetecting Paper
In article number 2200563, Xiaohong Chen, Duanjun Cai, and co‐workers develop a solar‐blind photodetecting paper based on ZnO nanoarray and 2D h‐BN interlayer with ultrahigh responsivity up to 700 A W−1 @ 265–276 nm and switchable detection bands between UVA (>315 nm) and UVC (<280 nm), through up‐conversion absorption and negative differential resistance effect.
Solar‐blind photodetectors (PDs) are widely applicable in special, military, medical, environmental, and commercial fields. However, high performance and flexible PD for deep ultraviolet (UV) range is still a challenge. Here, it is demonstrated that an upconversion of photon absorption beyond the energy bandgap is achieved in the ZnO nanoarray/h‐BN heterostructure, which enables the ultrahigh responsivity...
In‐plane anisotropy in 2D rhenium disulfide (ReS2) offers intriguing opportunities for designing future electronic and optical devices, and toward such applications, it is crucial to identify the crystal orientation in such 2D anisotropic materials. Existing spectroscopy or electron microscopy methods for determining the crystalline orientation often require complicated sample preparing procedures...
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