相关实验视频

Updated: Jun 8, 2025

An Available Technique for Preparation of New Cast MnCuNiFeZnAl Alloy with Superior Damping Capacity and High Service Temperature

An Available Technique for Preparation of New Cast MnCuNiFeZnAl Alloy with Superior Damping Capacity and High Service Temperature

Published on: September 23, 2018

异质化MnO₂纳米结构与工业杂质离子用于电气化中可防止泄漏的阳极

Siwei Zhuang¹, Fuyuan Xu¹, Ning Duan¹

¹State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.

Journal of hazardous materials

|November 3, 2024

概括

本研究引入了用于电的改性基阳极,增强了活性并减少了泄漏. 用改造的二氧化阳极显示出更好的性能和环境效益.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
环境工程环境工程

背景情况:

用二氧化 (γ-MnO2) 涂覆的 (Pb) 基阳极对电气化和重金属减少有希望.
工业应用受到MnO2前体中的杂质离子 (M) 的阻碍,影响阳极性能.

研究的目的:

研究M-MnO2中异构诱导的氧空缺对阳极活性和稳定性的影响.
确定减轻泄漏和改善电气化中阳极寿命的策略.

主要方法:

用各种M-MnO2涂层 (M = Co, Ni, Fe, Cu) 制造改性基阳极.
电化学测试以评估阳极活动和稳定性.
对泄漏和阳极粘液形成的分析.

主要成果:

阳极活动遵循了这一趋势:Pb/Co-MnO2 > Pb/Ni-MnO2 > Pb/Fe-MnO2 ≈ Pb/Cu-MnO2 > Pb/MnO2.
泄漏是显著的,其中Pb/Fe-MnO2和Pb/Cu-MnO2显示出最明显的问题.
与Pb/MnO2和Pb/Fe-MnO2相比,Pb/Co-MnO2阳极分别减少了12.4%和72.3%的含阳极粘液,最大限度地减少了产品的污染.

结论:

在M-MnO2中,异构结构工程可以通过氧空隙来增强阳极活性,但活性取决于度.
(Pb2+) 扩散是阳极失活的主要原因.
改性二氧化 (Co-MnO2) 阳极通过抑制泄漏并保持高电力开采活性,提供了具有成本效益和环保的解决方案.

关键词:

异构结构异构结构杂质离子杂质离子导致泄漏的情况.MnO ((2)) 是一种有氧化物.在电力制造中获得电力.

更多相关视频

Zinc-Sponge Battery Electrodes that Suppress Dendrites

Zinc-Sponge Battery Electrodes that Suppress Dendrites

Published on: September 29, 2020

Preparation of ZnO Nanorod/Graphene/ZnO Nanorod Epitaxial Double Heterostructure for Piezoelectrical Nanogenerator by Using Preheating Hydrothermal

Preparation of ZnO Nanorod/Graphene/ZnO Nanorod Epitaxial Double Heterostructure for Piezoelectrical Nanogenerator by Using Preheating Hydrothermal

Published on: January 15, 2016

相关概念视频

Electrodeposition

Electrodeposition

Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
Electrodeposition can...

Extraction: Advanced Methods

Extraction: Advanced Methods

Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...