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Cobalt (Co) is an efficient oxygen reduction reaction (ORR) catalyst but suffers from issues of easy deactivation and instability. Here, it shows that ZrO2 can stabilize Co through interface electron coupling and enables highly efficient 4e− ORR catalysis. Porous carbon nanofibers loaded with dispersed Co‐nanodots (≈10 nm, 9.63 wt%) and ZrO2 nanoparticles are synthesized as the catalyst. The electron...
Reversible oxygen redox (OR) is considered as a paradigmatic avenue to boost the energy densities of layered oxide cathodes. However, its activation is largely coupled with the local coordination environment around oxygen, which is usually accompanied with irreversible oxygen release and unfavorable structure distortion. Herein, it is revealed that the synergistic effect of transition‐metal (TM) vacancy...
Cobalt phthalocyanine (CoPc) has attracted particular interest owing to its excellent activity during the electrochemical CO2 conversion to CO. However, the efficient utilization of CoPc at industrially relevant current densities is still a challenge owing to its nonconductive property, agglomeration, and unfavorable conductive substrate design. Here, a microstructure design strategy for dispersing...
Microstructure Design Strategies
In article number 2300051, Qian Fu and co‐workers report a microstructure design strategy for dispersing CoPc molecules on macroporous hollow nanocarbon sheets in CO2 electrolysis. The carbon sheets' interconnected and macroporous structure provides a large surface area for anchoring CoPc with high dispersion and promotes reactant mass transport, thus improving the...
Developing nanomedicines with superior reactive oxygen species (ROS) scavenging capability has emerged as a promising strategy in treating ROS‐related diseases, for example, drug‐induced liver injury. However, designing nanoscavengers with the self‐propelling ability to scavenge ROS actively remains challenging. Here, a self‐propelled silica‐supported ultrasmall gold nanoparticles‐tannic acid hybrid...
Drug Screening
In article number 2207194, Mengsu Yang and co‐workers design a high throughput microfluidic chip that could achieve multi‐function drug screening against collective migration of cancer cells under confined environment. Using this device, three new compounds that could significantly inhibit confined migration of cancer cells are found: MA‐5, SB‐705498 and diphenyleneiodonium chloride...
Cancer metastasis is the major cause of cancer‐related death. Excessive extracellular matrix deposition and increased stiffness are typical features of solid tumors, creating confined spaces for tumor cell migration and metastasis. Confined migration is involved in all metastasis steps. However, confined and unconfined migration inhibitors are different and drugs available to inhibit confined migration...
Magnetic field enhanced electrocatalysis has recently emerged as a promising strategy for the development of a viable and sustainable hydrogen economy via water oxidation. Generally, the effects of magnetic field enhanced electrocatalysis are complex including magnetothermal, magnetohydrodynamic and spin selectivity effects. However, the exploration of magnetic field effect on the structure regulation...
Nanoparticle drug delivery is largely restricted by the low drug loading capacity of nanoparticle carriers. To address this critical challenge and maximize the potential of nanoparticle drug delivery, a 2D ultra‐thin layered double hydroxide (LDH) nanosheet with exceptionally high drug loading, excellent colloidal stability, and prolonged blood circulation for cancer treatment is constructed. The...
Aqueous Zn‐ion batteries (ZIBs) have emerged as a promising energy supply for next‐generation wearable electronics, yet they are still impeded by the notorious growth of zinc dendrite and uncontrollable side reaction. While the rational design of electrolyte composition or separator decoration can effectively restrain zinc dendrite growth, synchronously regulating the interfacial electrochemical performance...
Wool Keratin Gel‐Electrolyte
In article number 2107163, Lei Zhang, Jingshu Hui, Yuanlong Shao, and co‐workers develop a wool keratin derived hybrid biogel electrolyte to regulate the interfacial Zn‐ion migration in aqueous Zn‐ion battery. Thanks to the merits of keratin triggered Zn‐ion transport promotion, a durable wearable quasi‐solid‐state Zn‐ion battery is developed with depressed dendrite formation...
Oxide perovskite ceramics are cornerstone materials of electronic devices, but they easily break under bending. Such brittle failure phenomenon limits their applications in emerging flexible electronics. Here, the authors propose a scalable approach of sol–gel electrospinning to synthesize flexible perovskite Li0.35La0.55TiO3 (LLTO) nanofibers (NFs) by reducing grain sizes and pore defects in the...
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