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Green fuel from water splitting is hardcore for future generations, and the limited source of fresh water (<1%) is a bottleneck. Seawater cannot be used directly as a feedstock in current electrolyzer techniques. Until now single atom catalysts were reported by many synthetic strategies using notorious chemicals and harsh conditions. A cobalt single‐atom (CoSA) intruding cobalt oxide ultrasmall...
Single‐Crystal Ferroelectrics
In article number 2304360, Yuho Min, Geon Dae Moon, and co‐workers develop single‐crystal ferroelectric‐based‐(K,Na)NbO3/CuO micro/nano heterostructures and demonstrate highly efficient photo‐piezocatalytic RhB degradation. This enhancement can be attributed to the improved separation of charge carriers and the appropriate alignment of the energy band structure to the...
2D metal‐organic frameworks‐based (2D MOF‐related) materials benefit from variable topological structures, plentiful open active sites, and high specific surface areas, demonstrating promising applications in gas storage, adsorption and separation, energy conversion, and other domains. In recent years, researchers have innovatively designed multiple strategies to avoid the adverse effects of conventional...
Twisted Homobilayers
In article number 2305200, Pengfei Qi, Zheyu Fang, and co‐workers have systematically studied the nonequilibrium dynamics of indirect exciton in homobilayers. The homobilayers with slightly twist‐angle can induce a deep moiré potential (>50 meV) in energy landscape, resulting in a strongly localized moiré excitons insulating the transport dynamics from phonons and disorder...
Hierarchical Interfaces
The unique electronic structure in hierarchical interfaces endows Ni12P5‐Ni2P porous nanosheets with efficient electrocatalysis effects towards both sulfides' reduction and oxidation, indicating a bidirectional conversion acceleration. Importantly, Ni12P5‐Ni2P porous nanosheets with hierarchical interfaces also reduce Li nucleation energy barrier and a dendrite‐free Li deposition...
Phosphorescent materials with time‐dependent phosphorescence colors (TDPCs) have great potential in advanced optical applications. Synthesis of such materials is attractive but challenging. Here, a series of carbon dot‐porous Al2O3 composites exhibiting distinctive TDPC characteristics is prepared by high‐temperature pyrolysis of Al‐based metal–organic frameworks NH2‐MIL‐101(Al). The composite synthesized...
Traditional fluorescent anti‐counterfeiting labels based on “on‐off” fluorescence can be easily cloned. It is important to explore advanced anti‐counterfeiting fluorescent labels with high‐level security. Here, a pioneering ion species‐ and ion concentration‐dependent anti‐counterfeiting technique is developed. By successive loading Cu2+‐sensitive yellow emitted carbon dots (Y‐CDs) and Cu2+ non‐sensitive...
Ammonia is an efficient and clean hydrogen carrier that promises to tackle the increasing energy and environmental problems. However, more than 90% of ammonia is produced by the Haber–Bosch process, and its enormous energy consumption and CO2 emissions require the development of novel alternatives. Chemical looping technology can decouple the one‐step ammonia synthesis reaction into separated nitridation...
Poor water stability and single luminous color are the major drawbacks of the most phosphors reported. Therefore, it is important to realize multicolor luminescence in a phosphor with single host and single activator as well as moisture resistance. LaF3:Pr3+@SiO2 yolk‐shell nanospheres are facilely obtained by a designing new technology of a simple and cost‐effective electrospray ionization combined...
Rampant dendrite growth, electrode passivation and severe corrosion originate from the uncontrolled ions migration behavior of Zn2+, SO42−, and H+, which are largely compromising the aqueous zinc ion batteries (AZIBs) performance. Exploring the ultimate strategy to eliminate all the Zn anode issues is challenging but urgent at present. Herein, a fluorinated separator interface (PVDF@GF) is constructed...
Photocatalytic membranes can effectively integrate membrane separation and photocatalytic degradation processes to provide an eco‐friendly solution for efficient water purification. It is of great significance to develop highly efficient photocatalytic membranes driven by visible light to ensure the long‐term stability of membrane separation systems and the maximum utilization of solar energy. Metal‐organic...
Solid‐state batteries have become the most anticipated option for compatibility with high‐energy density and safety. In situ polymerization, a novel strategy for the construction of solid‐state systems, has extended its application from solid polymer electrolyte systems to other solid‐state systems. This review summarizes the application of in situ polymerization strategies in solid‐state batteries,...
Artificially molding exciton flux is the cornerstone for developing promising excitonic devices. In the emerging hetero/homobilayers, the spatial separated charges prolong exciton lifetimes and create out‐plane dipoles, facilitating electrically control exciton flux on a large scale, and the nanoscale periodic moiré potentials arising from twist‐angle or/and lattice mismatch can substantially alter...
For metal halide perovskite solar cells, bidentate passivation (BP) is highly effective, but currently, only passivation sites rather than molecular environments are being considered. Here, the authors report an effective approach for high‐performance fully printable mesoscopic perovskite solar cells (FP‐PSCs) through the BP strategy using the multidentate molecule 6‐chloropurine (6‐CP). By utilizing...
Vanadium‐based oxides have attracted much attention because of their rich valences and adjustable structures. The high theoretical specific capacity contributed by the two‐electron‐transfer process (V5+/V3+) makes it an ideal cathode material for aqueous zinc‐ion batteries. However, slow diffusion kinetics and poor structural stability limit the application of vanadium‐based oxides. Herein, a strategy...
Single‐atom catalysts (SACs) are promising cathode materials for addressing issues faced by lithium–sulfur batteries. Considering the ample chemical space of SACs, high‐throughput calculations are efficient strategies for their rational design. However, the high throughput calculations are impeded by the time‐consuming determination of the decomposition barrier (Eb) of Li2S. In this study, the effects...
Nanogenerator (NG) is a potential technology that allows to build self‐powered systems, sensors, flexible and portable electronics in the current Internet of Things (IoT) generation. Nanogenerators include piezoelectric nanogenerators (PENGs) and triboelectric nanogenerators (TENGs), convert different forms of mechanical motion into useful electrical signals. They have evolved and expanded their applications...
Tumor Microenvironments
In article number 2304491, Zhiyuan Tian and co‐workers develop a metal‐organic framework (MOF)‐based nanoagent capable of sequentially killing cancer‐associated fibroblast and tumor cells via phototriggered dual‐channel generation of •OH, activating tumor immune response, and regulating tumor microenvironment, which enables the potently synergistic antitumor phototherapy.
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