SGER: Carbon Supported Non-Noble Metal Electrocatalysts Based on Macrocyclic Compounds

SGER：基于大环化合物的碳负载非贵金属电催化剂

• 批准号: 0736111
• 负责人: Alevtina White Smirnova
• 金额: --
• 依托单位: University of Connecticut
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2008-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0736111&HistoricalAwards=false
• 关键词: SGER; Carbon; Supported; Non; Noble

0736111Smirnova, Alevtina Noble metal electrocatalysts are well known and extensively used for manufacturing of various kinds of electrochemical devices, however the high cost of these materials significantly restricts their commercial application. Though remarkable progress has been made recently, none of the existing non-noble metal catalysts can reach the level of a Pt based catalysts in terms of catalytic activity, durability and chemical/electrochemical stability.The proposed research is focused on synthesis and characterization of novel nonnoble metal electro-catalysts based on macrocyclic compounds. The catalysts will be synthesized from transition metals chelated with organic precursors and impregnated into modified carbon supports forming nitrogen enriched nano-structures. As a result, a self-organized network of macro-cycles containing stabilized transition metal cations will be formed inside the modified carbon support possessing high catalytic activity toward oxygen reduction and hydrogen oxidation.The intellectual merit of the proposed work is in designing new catalysts and understanding the structure-properties relationship of the electrocatalysts based on macrocyclic compounds that have direct influence on industrial, environmental, national security and sustainable energy resources. The novel catalysts will be investigated with emphasis on carbon support functionality, coordination effect between metal cation macrocycles and support, and the distribution of active catalytic sites. The broader impacts of this work will enhance design of a new generation of non-noble electrocatalysts that can be used in different kinds of low temperature fuel cells, such as H2, methanol, ethanol, or formic acid fuel cells, electrolyzers, and hydrogen separation devices. The completed experimental cycle from synthesizing catalyst to manufacturing a fuel cell will validate the results of the work. This study will form links to other scientific disciplines, such as those regarding bio-catalysts in which a single enzymatic site containing iron cation is two orders of magnitude more active than Pt atom.This work will give a significant educational background for the students in the emerging area of non-noble metal catalysts. Furthermore, it will allow to enhance relationships with other universities, e.g. University of Illinois in Chicago, and to seed money for future projects. This project is vitally important for the PI as a new faculty member at the University of Connecticut to continue her work in the area of fuel cell catalysts that has been started earlier and has already found national and international recognition.

0736111SMIRNOVA，ALEVTINA贵金属电催化剂是众所周知的，并且广泛用于制造各种电化学设备，但是这些材料的高成本显着限制了其商业应用。尽管最近已经取得了显着的进展，但现有的非拨金属催化剂都无法在催化活性，耐用性和化学/电化学稳定性方面达到基于PT的催化剂水平。该研究的侧重于基于微生物基于微生物的新型金属电催化剂的合成和表征，基于微生物基于微生物的化合物。催化剂将与有机前体螯合的过渡金属合成，并浸入改良的碳支持形成富含氮的纳米结构的碳。结果，将形成一个自组织的宏观循环网络，其中包含稳定过渡金属阳离子将在修改后的碳支持中形成，该碳支持具有高催化活性，促进氧气减少和氢氧化。拟议的工作的智力优点在于设计新的催化剂，并理解基于机构的结构性销售机构的结构性，以实现电型蜂蜜量的结构性依据，使其具有工业序列型蜂蜜量的影响。和可持续能源。将研究新型催化剂，重点是碳支持功能，金属阳离子大环与支撑之间的协调效应以及活性催化位点的分布。这项工作的更广泛的影响将增强新一代非拨动电催化剂的设计，这些电催化剂可用于不同种类的低温燃料电池，例如H2，甲醇，乙醇或甲醇或甲酸燃料电池，电解液和氢分离设备。从合成催化剂到制造燃料电池的完整实验周期将验证工作结果。这项研究将形成与其他科学学科的联系，例如关于生物催化剂的链接，其中包含铁阳离子的单个酶位部位比PT原子更活跃的两个数量级。这项工作将为非诺布金属催化剂新兴领域的学生提供重要的教育背景。此外，它将允许加强与其他大学的关系，例如伊利诺伊大学的芝加哥大学，并为未来的项目筹集资金。对于PI作为康涅狄格大学的新教职员工而言，该项目至关重要，要继续在较早开始的燃料电池催化剂领域工作，并且已经找到了国家和国际认可。