一维磷酸铈氢（1D-Ce(HPO).xHO）衍生的新型超级电容器电极。

Novel Supercapacitor Electrode Derived from One Dimensional Cerium Hydrogen Phosphate (1D-Ce(HPO).xHO).

机构信息

Department of Electrical and Computer Engineering, Pusan National University, Busan 46241, Korea.

Green Hydrogen Lab (GH2Lab), Institute for Hydrogen Research (IHR), Université du Québec à Trois-Rivières (UQTR), 3351 Boulevard des Forges, Trois-Rivières, QC G9A 5H7, Canada.

出版信息

Molecules. 2022 Nov 9;27(22):7691. doi: 10.3390/molecules27227691.

DOI:10.3390/molecules27227691

PMID:36431792

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9694725/

Abstract

In this manuscript, we are reporting for the first time one dimensional (1D) cerium hydrogen phosphate (Ce(HPO).xHO) electrode material for supercapacitor application. In short, a simple hydrothermal technique was employed to prepare Ce(HPO).xHO. The maximum surface area of 82 m g was obtained from nitrogen sorption isotherm. SEM images revealed Ce(HPO).xHO exhibited a nanorod-like structure along with particles and clusters. The maximum specific capacitance of 114 F g was achieved at 0.2 A g current density for Ce(HPO)/NF electrode material in a three-electrode configuration. Furthermore, the fabricated symmetric supercapacitor (SSC) based on Ce(HPO).xHO//Ce(HPO).xHO demonstrates reasonable specific energy (2.08 Wh kg), moderate specific power (499.88 W kg), and outstanding cyclic durability (retains 92.7% of its initial specific capacitance after 5000 GCD cycles).

摘要

在本文中，我们首次报道了一维（1D）磷酸铈（Ce(HPO).xHO）电极材料在超级电容器中的应用。简而言之，采用简单的水热技术制备了 Ce(HPO).xHO。氮吸附等温线获得的最大比表面积为 82 m²/g。SEM 图像显示 Ce(HPO).xHO 呈现纳米棒状结构，同时存在颗粒和团簇。在三电极配置中，Ce(HPO)/NF 电极材料在 0.2 A/g 的电流密度下实现了 114 F/g 的最大比电容。此外，基于 Ce(HPO).xHO//Ce(HPO).xHO 的制备的对称超级电容器（SSC）具有合理的比能量（2.08 Wh/kg）、适度的比功率（499.88 W/kg）和出色的循环耐久性（在 5000 次 GCD 循环后保留其初始比电容的 92.7%）。