A mesoporous ternary transition metal oxide nanoparticle composite for high-performance asymmetric supercapacitor devices with high specific energy

被引：29

作者：

Deyab, Nourhan M. ^{[1
,2
]}

Taha, Manar M. ^{[1
]}

Allam, Nageh K. ^{[1
]}

机构：

[1] Amer Univ Cairo, Sch Sci & Engn, Energy Mat Lab, New Cairo 11835, Egypt

[2] Natl Res Ctr, Phys Chem Dept, Giza, Egypt

来源：

NANOSCALE ADVANCES | 2022年 / 4卷 / 05期

关键词：

NANOTUBE ARRAYS; TIO2; ELECTRODES; ARCHITECTURES; NICKEL;

D O I：

10.1039/d1na00694k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report on the optimized fabrication and electrochemical properties of ternary metal oxide (Ti-Mo-Ni-O) nanoparticles as electrochemical supercapacitor electrode materials. The structural, morphological, and elemental composition of the fabricated Ti-Mo-Ni-O via rapid breakdown anodization are elucidated by field emission scanning electron microscopy, Raman, and photoelectron spectroscopy analyses. The Ti-Mo-Ni-O nanoparticles reveal pseudocapacitive behavior with a specific capacitance of 255.4 F g(-1). Moreover, the supercapacitor device Ti-Mo-Ni-O NPs//mesoporous doped-carbon (TMN NPs//MPDC) device exhibited a superior specific energy of 68.47 W h kg(-1) with a corresponding power density of 2058 W kg(-1). The supercapacitor device shows 100% coulombic efficiency with 96.8% capacitance retention over 11 000 prolonged charge/discharge cycles at 10 A g(-1).

引用

页码：1387 / 1393

页数：7

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