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Ultrathin 2D conjugated polymer nanosheets are an emerging class of photocatalysts for solar‐to‐chemical energy conversion. Until now, the majority of ultrathin 2D polymer photocatalysts are produced through exfoliation of layered polymers. Unfortunately, it still remains a great challenge to exfoliate layered polymers into ultrathin nanosheets with high yields. In this work, a liquid‐phase protonation‐assisted...
In article number 1800994, Lan Yin and co‐workers propose a high‐performance fully biodegradable primary battery system. Energy provided by a single cell could satisfy most ultralow‐power implantable devices and maintain robust functions. The battery is fully degradable both in vitro and in vivo. The battery system could find application in biodegradable, electronic implants for advanced diagnosis...
Biodegradable transient devices represent an emerging type of electronics that could play an essential role in medical therapeutic/diagnostic processes, such as wound healing and tissue regeneration. The associated biodegradable power sources, however, remain as a major challenge toward future clinical applications, as the demonstrated electrical stimulation and sensing functions are limited by wired...
Developing cost‐effective electrocatalysts with high activity and stability for hydrogen evolution reaction (HER) plays an important role in modern hydrogen economy. Amorphous molybdenum sulfide (MoSx) has recently emerged as one of the most promising alternatives to Pt‐based catalysts in HER, especially in acidic electrolytes. Here this study reports a simple ultrasonic spray pyrolysis method to...
Bifunctional oxygen electrocatalyst: A metal–amino acid complex is developed to prepare high‐performance mesoporous carbon electrocatalyst for both oxygen reduction and oxygen evolution reactions. Such prepared catalyst can be used to assemble rechargeable zinc–air batteries with excellent durability. This work represents a new route toward low‐cost, highly active, and durable bifunctional electrocatalysts...
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