Electrochemical Underpotential Co-deposition of Binary and Ternary Alloys: Towards a Novel Manufacturing Technology

二元和三元合金的电化学欠电位共沉积：迈向新型制造技术

• 批准号: 1131571
• 负责人: Giovanni Zangari
• 金额: $ 28.6万
• 依托单位: University of Virginia Main Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-01 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1131571&HistoricalAwards=false
• 关键词: Electrochemical; Underpotential; Co; deposition; Binary

This grant provides funding to explore the advantages and investigate the fundamental limitations of a novel electrochemical process for alloy film formation, with the objective to assess its viability as a practical manufacturing technology. This process exploits the energy released upon alloy formation to predict the conditions under which a film with a predetermined composition and structure is obtained. Theoretically, this process provides complete control over material formation, but in manufacturing environments the predictive capabilities of this method are limited by the need to achieve sufficiently fast production rates. Experiments with a set of binary alloys will therefore quantify how and to what extent practical production rates will affect the theoretical predictions, ideally providing correction terms that will enable one to maintain process control under practical manufacturing conditions. Fast production rates also hinder the direct synthesis of complex crystal structures of technological interest; formation of such structures will be therefore investigated by tailoring the synthesis conditions, to inhibit the formation of alternative structures. Finally, this process will be extended to alloy materials composed of three elements.If successful, the results of this research will strongly impact current practices in manufacturing processes utilizing alloy films, in particular microfabrication processes, by providing a robust and precise method for the synthesis of new materials, using procedures characterized by low cost and low energetic impact. In particular, new processes for the formation of platinum- and palladium-based alloys will be made available, which may provide enhanced performance in magnetic or energy conversion devices. Other potential benefits include a simplification of current manufacturing processes and the development of new device concepts that may exploit materials made available through this research.

该补助金提供资金，以探索合金膜形成的新型电化学过程的优点和研究其基本局限性，目的是评估其作为实用制造技术的可行性。该过程利用合金形成时释放的能量来预测获得具有预定组成和结构的膜的条件。从理论上讲，这种方法提供了对材料形成的完全控制，但在制造环境中，这种方法的预测能力受到实现足够快的生产速率的需要的限制。因此，一组二元合金的实验将量化实际生产率将如何以及在多大程度上影响理论预测，理想地提供校正项，使人们能够在实际制造条件下保持过程控制。快速的生产速率也阻碍了直接合成技术感兴趣的复杂晶体结构;因此，将通过定制合成条件来研究此类结构的形成，以抑制替代结构的形成。最后，该工艺将扩展到由三种元素组成的合金材料。如果成功，这项研究的结果将通过提供一种稳健且精确的合成方法，强烈影响当前利用合金薄膜的制造工艺，特别是微细加工工艺的实践。新材料，使用低成本和低能量影响的程序。特别是，将提供用于形成铂基和钯基合金的新工艺，这可以在磁性或能量转换装置中提供增强的性能。其他潜在的好处包括简化当前的制造工艺和开发新的设备概念，这些概念可以利用通过这项研究获得的材料。