共 57 条
Engineering squandered cotton into eco-benign microarchitectured triboelectric films for sustainable and highly efficient mechanical energy harvesting
被引:75
作者:
Graham, Sontyana Adonijah
[1
]
Dudem, Bhaskar
[1
]
Mule, Anki Reddy
[1
]
Patnam, Harishkumarreddy
[1
]
Yu, Jae Su
[1
]
机构:
[1] Kyung Hee Univ, Inst Wearable Convergence Elect, Dept Elect Engn, 1732 Deogyeong Daero, Yongin 446701, Gyeonggi Do, South Korea
来源:
基金:
新加坡国家研究基金会;
关键词:
Coin-cell type triboelectric nanogenerators;
Squandered cotton;
PVA loaded cellulose films;
Microarchitectures;
Kapton;
Self-powering systems;
HIGH-PERFORMANCE;
CELLULOSE NANOCRYSTALS;
COMPOSITE FILMS;
RENEWABLE ENERGY;
NANOGENERATORS;
POLYDIMETHYLSILOXANE;
FIBERS;
D O I:
10.1016/j.nanoen.2019.04.081
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Harvesting mechanical energy from daily life human activities has gained tremendous interest, along with the concept of waste to wealth which has been also a major concern from a few decades. In this regards, firstly, we fabricated microcrystalline cellulose (MCC) particles from the squandered cotton and they were further dissolved into biocompatible polyvinyl alcohol (PVA) to develop a triboelectric material. The resultant cellulose loaded PVA film (CPF) was employed as a positive triboelectric material to design a coin-cell type TENG, whereas the Kapton was used as a negative material. Design of such TENG using CPF can reduce the processing cost and is also significant to incorporate the waste cotton into an energy harvesting device. Besides, the effect of electrical output performance of CPF-based prototype TENG (CPF-pTENG) as a function of the concentration of MCC particles loaded into PVA was also systematically studied and optimized. Thus, the CPF-pTENG with the 2.5 wt% of cellulose added into PVA exhibited a stable and high electrical output. The electrical performance of CPF-pTENG was further enhanced by introducing the microarchitectures on the surface of CPF, and it exhibited comparatively very high voltage, current and power density values of similar to 600 V, 50 mu A and 84.5 W/m(2), respectively. Finally, to demonstrate the practical or commercial applications, a MACPF-based coin-cell type TENG (i.e., MACPF-ccTENG) was developed to harvest the mechanical energies available in daily human life by placing it under the human-foot medial arch, which can be further utilized as a self-power system to drive various portable electronics.
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页码:505 / 516
页数:12
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