Cellulose/BaTiO3 aerogel paper based flexible piezoelectric nanogenerators and the electric coupling with triboelectricity. (March 2019)

• Record Type: Journal Article
• Authors: Shi, Kunming; Huang, Xingyi; Sun, Bin; Wu, Zhiyi; He, Jinliang; Jiang, Pingkai
• Is Part Of: Nano energy. Volume 57(2019)
• Page Start: 450
• Page End: 458
• Publication Date: 2019-03
• Subjects: BaTiO3 nanoparticles -- Cellulose -- Nanocomposites -- Piezoelectricity -- Triboelectricity -- Hybridized nanogenerator; Nanoscience -- Periodicals; Nanotechnology -- Periodicals; Nanostructured materials -- Periodicals; Power resources -- Technological innovations -- Periodicals; Nanoscience; Nanostructured materials; Nanotechnology; Power resources -- Technological innovations; Periodicals; 621.042
• DOI: 10.1016/j.nanoen.2018.12.076
• Languages: English
• ISSNs: 2211-2855

Abstract

Abstract: Flexible piezoelectric nanogenerators (PENGs) with high output performance are highly desirable for energy harvesting. Coupling triboelectric nanogenerators (TENGs) with the PENGs is a feasible method to enhance the output performance, while the complicated structure and the requirement of skillful operation limited the development of hybridized nanogenerators. In this work, flexible high-performance PENGs are developed using regenerated cellulose/BaTiO3 (C/BT) aerogel papers based polydimethylsiloxane (PDMS) nanocomposites. Benefiting from the high loading but uniform dispersion of tetragonal BT nanoparticles and the enhanced Young Modulus of the nanocomposites, the PENGs can exhibit a maximum voltage of 15.5 V and a maximum power of 11.8 μW under an external mechanical impact. By introducing a single electrode TENG, an innovative hybridized nanogenerator has been designed and prepared, which combine different mechanical energy harvesting techniques in a single device. Polarized along proper direction of the PENG, the positive coupling effect can efficiently increase the output voltage and power of the hybridized nanogenerator to 48 V and 85 μW, respectively. This research offers new insights into the design and preparation of high output hybridized nanogenerator with simple structure, high flexibility and easy operation. Graphical abstract: fx1 Highlights: Flexible PENGs were developed using cellulose/BaTiO3 aerogel papers based PDMS nanocomposites. The single-device nanogenerators combining piezoelectric and triboelectric effects were prepared. Electric coupling in nanogenerators varies with the piezoelectric polarity. Cellulose contributes to high loading but uniform dispersion of BaTiO3 nanoparticles.