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The high crystalline covalent triazine framework‐1 (CTF‐1), composed of alternating triazine and phenylene, has emerged as an efficient photocatalyst for solar‐driven hydrogen evolution reaction (HER). However, it is of great challenge to further improve photocatalytic HER performance via increasing crystallinity due to its near‐perfect crystallization. Herein, an alternative strategy of scaffold...
Hole transporting layers (HTLs), strategically positioned between electrode and light absorber, play a pivotal role in shaping charge extraction and transport in organic solar cells (OSCs). However, the commonly used poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) HTL, with its hygroscopic and acidic nature, undermines the operational durability of OSC devices. Herein, an environmentally...
Given that the ion‐exchange membrane takes up more than 30% of redox flow battery (RFB) cost, considerable cost reduction is anticipated with the membrane‐free design. However, eliminating the membrane/separator would expose the membrane‐free RFBs to a higher risk of short‐circuits, and the dendrite growth may aggravate this issue. The current strategy based on expanding distances between electrodes...
Developing a silicone elastomer with high strength, exceptional toughness, good crack tolerance, healability, and recyclability, poses significant challenges due to the inherent trade‐offs between these properties. Herein, the design of silicone‐based elastomers with a nanoscopic microphase separation structure and comprehensive mechanical properties is achieved by combining bi‐incompatible soft segments...
Solar energy conversion technologies, particularly solar‐driven photothermal conversion, are both clean and manageable. Although much progress has been made in designing solar‐driven photothermal materials, significant challenges remain, not least the photobleaching of organic dyes. To tackle these issues, micro‐carbonized polysaccharide chains, with carbon dots (CDs) suspended from the chains, are...
Acute thrombosis and its complications are leading global causes of disability and death. Existing thrombolytic drugs, such as alteplase and urokinase (UK), carry a significant bleeding risk during clinical treatments. Thus, the development of a novel thrombolysis strategy is of utmost urgency. Based on the previous work, the hollow structure of microcapsules (MC) is fabricated. Subsequently, armor‐piercing...
Currently, research on thermal interface materials (TIMs) is primarily focused on enhancing thermal conductivity. However, strong adhesion and multifunctionality are also important characteristics for TIMs when pursing more stable interface heat conduction. Herein, a novel poly(urethane‐urea‐imide) (PUUI) elastomer containing abundant dynamic hydrogen bonds network and reversible disulfide linkages...
Organic–inorganic hybrid linear and nonlinear optical (NLO) materials have received increasingly wide spread attention in recent years. Herein, the first hybrid noncentrosymmetric (NCS) borophosphate, (C5H6N)2B2O(HPO4)2 (4PBP), is rationally designed and synthesized by a covalent‐linkage strategy. 4‐pyridyl‐boronic acid (4 PB) is considered as a bifunctional unit, which may effectively improve the...
Highly flexible and superelastic aerogels at large deformation have become urgent mechanical demands in practical uses, but both properties are usually exclusive. Here a trans‐scale porosity design is proposed in graphene nanofibrous aerogels (GNFAs) to break the trade‐off between high flexibility and superelasticity. The resulting GNFAs can completely recover after 1000 fatigue cycles at 60% folding...
Lithium (Li) metal batteries are deemed as promising next‐generation power solutions but are hindered by the uncontrolled dendrite growth and infinite volume change of Li anodes. The extensively studied 3D scaffolds as solutions generally lead to undesired “top‐growth” of Li due to their high electrical conductivity and the lack of ion‐transporting pathways. Here, by reducing electrical conductivity...
Solar‐driven interfacial evaporation (SDIE) is a highly promising approach to achieve sustainable desalination and tackle the global freshwater crisis. Despite advancements in this field, achieving balanced thermal localization and salt resistance remains a challenge. Herein, the study presents a 3D hierarchical porous ceramic platform for SDIE applications. The utilized alumina foam ceramics (AFCs)...
Supercapacitive swing adsorption (SSA) modules with bipolar stacks having 2, 4, 8, and 12 electrode pairs made from BPL 4 × 6 activated carbon are constructed and tested for carbon dioxide capture applications. Tests are performed with simulated flue gas (15%CO2 /85%N2) at 2, 4, 8, and 12 V, respectively. Reversible adsorption with sorption capacities (≈58 mmol kg−1) and adsorption rates (≈38 µmol...
Graphene‐Based Heterojunctions
In article number 2401150, Xiaojuan Sun, Dabing Li, and co‐workers developed an in‐situ growth strategy for the wafer‐scale patterned graphene array on non‐catalytic substrates. It enables the easy fabrication and mass production of optoelectronic artificial synaptic devices, showing great potential for biomimetic vision systems.
Photocatalytic water splitting using covalent organic frameworks (COFs) is a promising approach for harnessing solar energy. However, challenges such as slow kinetic dynamics in the photocatalytic oxygen evolution reaction (OER) and COFs' self‐oxidation hinder its progress. In this study, an enamine‐based COF coordinated is introduced with cobalt dichloride, CoCl2 (CoCl2‐TpBPy). The coordination of...
With ever‐increasing requirements for cathodes in the lithium‐ion batteries market, an efficiency and eco‐friendly upcycling regeneration strategy is imperative to meet the demand for high‐performance cathode materials. Herein, a facile, direct and upcycling regeneration strategy is proposed to restore the failed LiCoO2 and enhance the stability at 4.6 V. Double effects combination of relithiation...
Polarization‐sensitive broadband optoelectronic detection is crucial for future sensing, imaging, and communication technologies. Narrow bandgap 2D materials, such as Te and PdSe2, show promise for these applications, yet their polarization performance is limited by inherent structural anisotropies. In this work, a self‐powered, broadband photodetector utilizing a Te/PdSe2 van der Waals (vdWs) heterojunction,...
Lead (Pb) poisoning and CO2‐induced global warming represent two exemplary environmental and energy issues threatening humanity. Various biomass‐derived materials are reported to take up Pb and convert CO2 electrochemically into low‐valent carbon species, but these works address the problems separately rather than settle the issues simultaneously. In this work, cheap, natural ellagic acid (EA) extracted...
Ionic liquids have been widely used to improve the efficiency and stability of perovskite solar cells (PSCs), and are generally believed to passivate defects on the grain boundaries of perovskites. However, few studies have focused on the relevant effects of ionic liquids on intragrain defects in perovskites which have been shown to be critical for the performance of PSCs. In this work, the effect...
Currently, the only thermoelectric (TE) materials commercially available at room temperature are those based on bismuth telluride. However, their widespread application is limited due to their inferior thermoelectric and mechanical properties. In this study, a strategy of growing a rigid second phase of MoSe2 is employed, in situ within the matrix phase to achieve n‐type bismuth telluride‐based materials...
1D nanowire networks, sharing similarities of structure, information transfer, and computation with biological neural networks, have emerged as a promising platform for neuromorphic systems. Based on brain‐like structures of 1D nanowire networks, neuromorphic synaptic devices can overcome the von Neumann bottleneck, achieving intelligent high‐efficient sensing and computing function with high information...