Luminescent and Transparent Nanocellulose Films Containing
Europium Carboxylate Groups as Flexible Dielectric Materials
Version 2 2018-09-20, 18:48
Version 1 2018-09-20, 18:36
Posted on 2018-09-20 - 18:48
Transparent, flexible,
and luminescent 2,2,6,6-tetramethylpiperidine-1-oxyl
radical-oxidized cellulose nanofibril films with europium carboxylate
groups (TOCN-Eu) are proposed as potential flexible dielectric materials.
The TOCN-Eu films were prepared from TOCN films with sodium carboxylate
groups (TOCN-Na) by immersion in Eu(NO3)3 solution
and subsequent washing with water and drying of the wet TOCN-Eu hydrogel
films. The nanolayered TOCN-Eu films emit red light under ultraviolet-light
irradiation and exhibit greatly improved dry and wet mechanical properties,
water resistance, thermal stability, oxygen-barrier properties, dielectric
breakdown strength, and energy density than conventional TOCN-Na films.
These characteristic properties of the TOCN-Eu films are most likely
caused by the formation of strong ionic bonds between the carboxylate
groups and Eu3+ ions. These high-performance cellulose
nanofibril films are promising for application as multifunctional
materials in light-emitting, photovoltaic, and energy storage devices.
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Yang, Quanling; Zhang, Chenggang; Shi, Zhuqun; Wang, Jinyu; Xiong, Chuanxi; Saito, Tsuguyuki; et al. (2018). Luminescent and Transparent Nanocellulose Films Containing
Europium Carboxylate Groups as Flexible Dielectric Materials. ACS Publications. Collection. https://doi.org/10.1021/acsanm.8b01112
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AUTHORS (7)
QY
Quanling Yang
CZ
Chenggang Zhang
ZS
Zhuqun Shi
JW
Jinyu Wang
CX
Chuanxi Xiong
TS
Tsuguyuki Saito
AI
Akira Isogai