Il‐Kwon Oh 교수

Electrochemical splitting of water is an attractive way to produce hydrogen fuel as a clean and renewable energy source. However, a major challenge is to accelerate the sluggish kinetics of the anodic half‐cell reaction where oxygen evolution reaction (OER) takes place. Here, a seamlessly conductive 3D architecture is reported with a carbon‐shelled Ni‐Co nanowire network as a highly efficient OER electrocatalyst. Highly porous and granular Ni‐Co nanowires are first grown on a carbon fiber woven

A silk nanofiber-networked bio-triboelectric generator (Silk Bio-TEG) is developed using an eco-friendly and sustainable silk biomaterial with strong hydrogen bonding between peptide blocks. The electrospun Silk Bio-TEG shows highly durable and reliable energy harvesting performances due to its notably high surface-to-volume ratio, mechanically super-strong silk fibers, and fracture tolerant behavior of nanofiber-networks. As a service to our authors and readers, this journal provides supporting

Existing ionic artificial muscles still require a technology breakthrough for much faster response speed, higher bending strain, and longer durability. Here, we report an MXene artificial muscle based on ionically cross-linked Ti₃C₂T <i>_x</i> with poly(3,4 ethylenedioxythiophene)-poly(styrenesulfonate), showing ultrafast rise time of within 1 s in DC responses, extremely large bending strain up to 1.37% in very low input voltage regime (0.1 to 1 V), long-term cyc

PSS electrodes, and 96% of initial strain after demonstration over 18 000 cycles), provide remarkable electro-chemo-mech anical properties: specific capacitance, electrical conductivity, and large surface area with mesoporosity.

Abstract A novel electro‐active polymer actuator employing the ionic networking membrane of poly(styrene‐ alt ‐maleimide) (PSMI)‐incorporated poly(vinylidene fluoride) (PVDF) was developed to improve the electrical and mechanical performance of the artificial muscles. The main drawback of the previous ionic polymer‐metal composite actuator was the straightening‐back and relaxation under the constant voltage excitation. The present ionic networking membrane actuator overcomes the relaxation of th

High‐performance electoactive artificial muscles with biofriendly, biodegradable, and biocompatible functionalities have attracted enormous attention in the era of human friendly electronic devices such as wearable electronics, soft haptic devices, and implantable or disposal biomedical devices. Here, a high‐fidelity bioelectronic soft actuator is reported based on biofriendly 2,2,6,6‐tetramethylpiperidine‐1‐oxyl radical‐oxidized bacterial cellulose (TOBC), chemically modified graphene, and ioni

Abstract Biopolymer‐based artificial muscles are promising candidates for biomedical applications and smart electronic textiles due to their multifaceted advantages like natural abundance, eco‐friendliness, cost‐effectiveness, easy chemical modification and high electical reactivity. However, the biopolymer‐based actuators are showing relatively low actuation performance compared with synthetic electroactive polymers because of inadequate mechanical stiffness, low ionic conductivity and ionic ex