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Advancing energy storage and supercapacitor applications through the development of Li-doped MgTiO perovskite nano-ceramics.

作者信息

Magar Hend S, Mansour A M, Hammad Ali B Abou

机构信息

Applied Organic Chemistry Department, National Research Centre (NRC), 33 El‑Bohouth St., Dokki, 12622, Cairo, Egypt.

Solid State Physics Department, Physics Research Institute, National Research Centre, 33 El Bohouth St., Dokki, 12622, Giza, Egypt.

出版信息

Sci Rep. 2024 Jan 22;14(1):1849. doi: 10.1038/s41598-024-52262-6.

DOI:10.1038/s41598-024-52262-6
PMID:38253766
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10803294/
Abstract

Perovskite oxide materials, specifically MgTiO (MT) and Li-doped MgTiO (MTxLi), were synthesized via a sol-gel method and calcination at 800 °C. This study explores the impact of varying Li doping levels (x = 0, 0.01, 0.05, and 0.1) on the crystalline structure and properties of MgTiO. X-ray diffraction analysis revealed a well-defined rhombohedral MgTiO phase. Optical diffuse reflectance measurements provided insights into energy gap values, refractive index, and dielectric constant. Li doping enhanced the electrical properties of MgTiO, with a notable phase transition observed at 50 °C. The study investigated impedance and AC conductivity under varying temperature and frequency conditions (25-120 °C, 4 Hz to 8 MHz). Electrochemical analysis through cyclic voltammetry and electrochemical impedance spectroscopy confirmed highly electrocatalytic properties for MTxLi, particularly when modified onto screen-printed electrodes. This work not only advances the understanding of Li-doped MgTiO nanostructures but also highlights their significant potential for direct electrochemical applications, particularly in the realm of energy storage.

摘要
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/173a0125bf41/41598_2024_52262_Fig15_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/df1067297e58/41598_2024_52262_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/4d723cdcf138/41598_2024_52262_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/c82fa386d633/41598_2024_52262_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/8d8cc33dffac/41598_2024_52262_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/022a284ae53b/41598_2024_52262_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/3523c24a8b39/41598_2024_52262_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/34b8c685340b/41598_2024_52262_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/13c083dd8496/41598_2024_52262_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/70a700b9d3ce/41598_2024_52262_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/c4c692708628/41598_2024_52262_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/85ba43945562/41598_2024_52262_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/833d41b79772/41598_2024_52262_Fig12_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/3d42e20ad860/41598_2024_52262_Fig13_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/ec77ddcea7f8/41598_2024_52262_Fig14_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/173a0125bf41/41598_2024_52262_Fig15_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/df1067297e58/41598_2024_52262_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/4d723cdcf138/41598_2024_52262_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/c82fa386d633/41598_2024_52262_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/8d8cc33dffac/41598_2024_52262_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/022a284ae53b/41598_2024_52262_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/3523c24a8b39/41598_2024_52262_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/34b8c685340b/41598_2024_52262_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/13c083dd8496/41598_2024_52262_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/70a700b9d3ce/41598_2024_52262_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/c4c692708628/41598_2024_52262_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/85ba43945562/41598_2024_52262_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/833d41b79772/41598_2024_52262_Fig12_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/3d42e20ad860/41598_2024_52262_Fig13_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/ec77ddcea7f8/41598_2024_52262_Fig14_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a7d9/10803294/173a0125bf41/41598_2024_52262_Fig15_HTML.jpg

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