Comparison of the performance of copper oxide and yttrium oxide nanoparticle based hydroxylethyl cellulose electrolytes for supercapacitors

Abstract

Biodegradable solid polymer electrolyte (SPE) systems composed of hydroxylethyl cellulose blended with copper(II) oxide (CuO) and yttrium(III) oxide (Y 2 O 3 ) nanoparticles as fillers, magnesium trifluoromethane sulfonate salt, and 1-ethyl-3methylimidazolium trifluoromethane sulfonate ionic liquid were prepared, and the effects of the incorporation of CuO and Y 2 O 3 nanoparticles on the performance of the SPEs for electric double-layer capacitors (EDLCs) were compared. The X-ray diffraction results reveal that the crystallinity of the SPE complex decreased upon inclusion of the Y 2 O 3 nanoparticles compared to CuO nanoparticles; this led to a higher ionic conductivity of the Y 2 O 3 -based SPE [(3.08 6 0.01) 3 10 24 S/cm] as compared to CuO [(2.03 6 0.01) 3 10 24 S/cm]. The EDLC performances demonstrated that the cell based on CuO nanoparticles had superior performance in terms of the specific capacitance, energy, and power density compared to the Y 2 O 3 -nanoparticle-based cell. However, Y 2 O 3 -nanoparticle-based cell displayed a high cyclic retention (91.32%) compared to the CuO-nanoparticle-based cell (80.46%) after 3000 chargedischarge cycles.

Electrolyte selection for supercapacitive devices: a critical review

“…Solid-state electrolyte based SCDs have attracted great interest in recent years due to the rapidly growing demand of power for wearable electronics, portable electronics, printable electronics, microelectronics, and especially exible electronic devices. [173][174][175][176][177] The solid-state electrolytes have lot of advantages over other electrolytes such as good ionic conducting media, simple packaging, and liquid-leakage free etc. 178 The solid-state electrolytes developed for SCDs have been based on polymer electrolytes.…”

An intuitive review of supercapacitors with recent progress and novel device applications

“…Solid-state electrolytes that depend on SCDs have gained a dominant interest in recent years because of the rapid growth of power for portable electronics, wearable electronics, microelectronics, printable electronics and especially flexible electronic devices [231][232][233][234][235].…”

Rare earth metal oxide‐doped reduced graphene‐oxide nanocomposite as binder‐free hybrid electrode material for supercapacitor application

“…Among the various types of transition metal oxides, plenty of studies related to pristineY 2 O 3 or conjugated with other metal oxides as electrode material are reported. [26][27][28] Y 2 O 3 is a rare earth metal oxide that is abundant in nature and a promising candidate since it possesses high permittivity, non-toxicity, and environmentally friendly. Naturally, pristine Y 2 O 3 has pseudocapacitive nature with low capacitance, and it behaves like an EDLC material.…”

“…TiO 2 nanobelts/rGO provides enhanced performance than using TiO 2 NPs attributed to the fact that the nanobelt exhibits better charge transport and distinct morphology allows more extensive contact with rGO. Among the various types of transition metal oxides, plenty of studies related to pristineY 2 O 3 or conjugated with other metal oxides as electrode material are reported 26‐28 . Y 2 O 3 is a rare earth metal oxide that is abundant in nature and a promising candidate since it possesses high permittivity, non‐toxicity, and environmentally friendly.…”