journal article·2022-11-09

Self-Cleaning and Shape-Adaptive Triboelectric Nanogenerator-Contained TiO2 Nanoparticle Coating

Qi Yan, Shuyao Li, Xinglin Tao, Tao Wang, Xiyan Xu, Xingling Wang, Hexing Li, Xiangyu Chen, Zhenfeng Bian

ACS Applied Materials & Interfaces· Volume 14· Issue 44
Publisher page

Abstract

With the rapid development of triboelectric nanogenerators (TENGs) for flexible wearable devices and electronic skins, challenges have gradually emerged related to the electrification surface, such as pollutant contamination and sophisticated surface adaptability. Hence, we report a simple spraying method to produce a shape-adaptive photocatalytic (SAP) triboelectric material with both self-cleaning and shape-adaptive functions. By spraying the polyvinyl alcohol solution with TiO2 photocatalysts and pre-drying cyclic, the SAP film can be adapted to a varied and intricate substrate. The highest transferred charge density of the SAP film reaches 197.5 μC/m2, when it contacts with the PTFE film. At the same time, it can degrade 74.4% of simulated pollutants under sunlight illumination, and 97% of the transferred charge density can be maintained after the degradation process, indicating good self-cleaning function and stable electrical output. Moreover, the spraying method of this allows it to have shape-adaptive functions. Accordingly, the SAP film can be deposited on the rectangular pyramid and hemispherical surface for fabricating TENGs with special shapes. This low-cost and simple spraying method further promotes the commercialized application of TENGs in the field of wearable devices and skin sensors.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Conducting polymers and applications · Tactile and Sensory Interactions

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

MOE Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, PR China

CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro−Nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, P. R. China

College of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China

Shanghai University of Electric Power, Shanghai 200090, PR China

Funding

Ministry of Science and Technology of the People's Republic of China · Youth Innovation Promotion Association of the Chinese Academy of Sciences · Shanghai Municipal Education Commission · Shanghai Municipal People's Government · National Natural Science Foundation of China · Beijing Nova Program · Higher Education Discipline Innovation Project · Shanghai Engineering Research Center of Green Energy Chemical Engineering · Program of Shanghai Academic Research Leader · Young Top-Notch Talents Program of Beijing Excellent Talents Funding · Chinese Education Ministry Key Laboratory and International Joint Laboratory on Resource Chemistry · Shanghai Frontiers Science Center of Biomimetic Catalysis

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