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Clever and rational design of structural hierarchy, along with precise component adjustment, holds profound significance for the construction of high‐performance supercapacitor electrode materials. In this study, a binder‐free self‐supported CCO@N0.5C0.5OH/NF cathode material is constructed with hierarchical hetero‐core–shell honeycomb nanostructure by first growing CuCo2O4 (CCO) nanopin arrays uniformly...
Flexible energy storage device is one of the most critical components as power source for wearable electronics. The emergence of MXenes, a growing family of 2D nanomaterials, has demonstrated a brand‐new possibility for flexible energy storage. However, the fabrication of MXene films with satisfactory mechanical, electrical, and electrochemical reliabilities remains challenging due to the weak interlayer...
The ambient electrochemical N2 reduction reaction (NRR) is a future approach for the artificial NH3 synthesis to overcome the problems of high‐energy consumption and environmental pollution by Haber–Bosch technology. However, the challenge of N2 activation on a catalyst surface and the competitive hydrogen evolution reaction make the current NRR unsatisfied. Herein, this work demonstrates that NbB...
Conventional pressure sensing devices are well developed for either indirect evaluation or internal measuring of fluid pressure over millimeter scale. Whereas, specialized pressure sensors that can directly work in various liquid environments at micrometer scale remain challenging and rarely explored, but are of great importance in many biomedical applications. Here, pressure sensor technology that...
In article number 1804732, Shayan Seyedin, Joselito M. Razal, and co‐workers make a class of flexible and highly conductive fibers from MXene and PEDOT:PSS that when fabricated into elastic energy storing devices demonstrate high performance even when stretched multiple times. This work provides a promising energy storage solution for powering miniaturized or wearable electronics.
Fiber‐shaped supercapacitors (FSCs) are promising energy storage solutions for powering miniaturized or wearable electronics. However, the scalable fabrication of fiber electrodes with high electrical conductivity and excellent energy storage performance for use in FSCs remains a challenge. Here, an easily scalable one‐step wet‐spinning approach is reported to fabricate highly conductive fibers using...
Tungsten oxide (WO3−x), a new alternative to conventional semiconductor material, has attracted numerous attentions owning to its widespread potential applications. Various methods have been reported for the synthesis of WO3−x nanostructures such as nanowires or nanodots. However, templates or surfactants are often required for the synthesis, which significantly complicate the process and hinder the...
Graphene has been regarded as a promising candidate for a new generation of transparent electrodes (TEs) due to its prominent characteristics including high optical transmittance, exceptional electronic transport, outstanding mechanical strength, and environmental stability. Comprehensive and critical insights into the latest advances in graphene‐based TEs (GTEs) since, but not limited to 2013, are...
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