作为性燃料电池应用的阴极催化剂的3,5-胺-1,2,4-二醇的碳支持铜复合体
Fikile R Brushett1, Matthew S Thorum, Nicholas S Lioutas
1Department of Chemical & Biomolecular Engineering , University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, USA.
Journal of the American Chemical Society
|August 19, 2010
概括
一个新的复合铜阴极 (Cu-tri/C) 的性能与在/氧燃料电池中的相当. 这种新型催化剂提供了更大的质量活动,表明了具有成本效益的能源解决方案的潜力.
科学领域:
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
- 催化剂是一种催化剂.
背景情况:
- /氧燃料电池对于清洁能源至关重要.
- 开发高效且具有成本效益的阴极材料是必不可少的.
- 基于的催化剂是有效的,但昂贵.
研究的目的:
- 为了评估一个新型的碳支持的铜复合体3,5-diamino-1,2,4-triazole (Cu-tri/C) 作为一个阴极材料.
- 为了比较其性能与传统的白金催化剂.
- 为了评估Cu-tri/C阴极的耐用性.
主要方法:
- 一个Cu-tri/C阴极的制造.
- 在性微流体H(2)/O(2) 燃料电池中进行测试.
- 在各种潜力下进行绩效评估.
- 加快耐久性测试. 加快耐久性测试.
主要成果:
- Cu-tri/C 阴极性能与 Pt/C 的性能相当.
- 未经优化的Cu-tri/C在相关的电位上表现出比Pt/C和Ag/C显著更大的质量活性.
- 耐久性研究显示,随着时间的推移,多种降解机制.
结论:
- Cu-tri/C 是一个有前途的替代性阴极材料,用于H(2)/O(2) 燃料电池.
- 催化剂和电极准备的优化可以进一步提高性能和耐用性.
- 这为更经济的燃料电池技术提供了潜力.
相关概念视频
03:12Batteries and Fuel Cells
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
02:47Voltaic/Galvanic Cells
Spontaneous Chemical Reactions
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
01:23Microbial Fuel Cells
Microbial fuel cells (MFCs) are bioelectrochemical devices that generate electricity by exploiting the metabolic processes of electrogenic bacteria. These systems provide a renewable energy source and serve as an innovative method for treating organic waste, such as wastewater.A typical MFC consists of two chambers: an anoxic (oxygen-free) compartment that houses the bacteria and an oxic (oxygen-rich) compartment that contains oxygen as the terminal electron acceptor. Many MFCs use proton...