Biomimetic [AV-Er2O3-doped δ-Bi2O3]-stacked nanoplates: an efficient electrocatalyst for OER/HER and electrode material for supercapacitor application

被引：18

作者：

Azhar, Sundus ^{[1
]}

Ahmad, Khuram Shahzad ^{[1
]}

Abrahams, Isaac ^{[2
]}

Jaffri, Shaan Bibi ^{[1
]}

Ingsel, Tenzin ^{[3
]}

Gupta, Ram K. ^{[3
]}

Ali, Daoud ^{[4
]}

机构：

[1] Fatima Jinnah Women Univ, Dept Environm Sci, Mat & Environm Chem Lab, Lab E21, Rawalpindi 46000, Pakistan

[2] Queen Mary Univ London, Sch Biol & Chem Sci, London, England

[3] Pittsburg State Univ, Dept Chem, Pittsburg, KS 66762 USA

[4] King Saud Univ, Coll Sci, Dept Zool, POB 2455, Riyadh 11451, Saudi Arabia

来源：

IONICS | 2023年 / 29卷 / 06期

关键词：

Nanomaterials; Hydrogen evolution reaction; Oxygen evolution reaction; Cyclic voltammetry; MAGNETIC-PROPERTIES; HIGHLY EFFICIENT; WATER OXIDATION; NANOPARTICLES; NANOCOMPOSITES; FABRICATION; BI2O3;

D O I：

10.1007/s11581-023-05002-1

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：

Current investigation explores the role of the phyto-metabolites of the Amaranthus viridis for development of the energy-active nanocomplex. The green route adopted for synthesis of doped nanocomplexes signifies economic viability and ecological convivial. Biomimetically prepared nanoparticles synthesized in different doping concentrations exhibited bandgap in the range of 2.5 to 3.2 eV. Average crystallite sizes of 13.97, 19.64, 16.11, and 11.16 nm were determined through XRD for the doped concentrations of 2.5, 5, 7.5, and 10%, respectively. Synthesized doped nanoparticles exhibit porous sheet-like morphology. The synthesized material was then explored for HER and OER potential through linear sweep voltammetry and electrochemical impedance spectroscopy studies. Overpotential value of 154 mV was obtained for hydrogen evolution reaction and 445 mV for oxygen evolution reaction. Furthermore, highest capacitance of 287 F/g was obtained at 2 mV/s through cyclic voltammetry.

引用

页码：2485 / 2500

页数：16

共 71 条

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