Large-scale multilayer reduced graphene oxide coatings on metals - market study

金属上的大规模多层还原氧化石墨烯涂层 - 市场研究

• 批准号: 514257-2017
• 负责人: Rosei, Federico
• 金额: $ 0.88万
• 依托单位: Institut national de la recherche scientifique
• 依托单位国家: 加拿大
• 项目类别: Idea to Innovation
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=618382
• 关键词: Large; scale; multilayer; reduced; graphene

A major challenge in modern materials engineering is to make cost effective anticorrosive coatings. Reducedgraphene oxide (rGO) is a great candidate in this arena as it can be used in water lubricated coatings, offeringan environmentally safe replacement to oil lubrications in oil tankers and pipelines. Significant efforts focusedon developing methods to produce rGO thin-films through thermal, chemical or electrical treatments. However,the most common protocols for reducing graphene oxide (GO) to rGO rely on using toxic solvents, causingserious safety and environmental concerns. The growth of rGO directly on stainless steel for implantapplications has not been assessed. We recently developed a simple process for growing multilayer rGO filmson stainless steel (SS316L) surfaces using solution-phase molecular precursors of coronene. Coronene isbasically a small flake of graphene which can undergo dimerization by subsequent annealing. Our processconsists of drop casting a solution of coronene on SS316L, followed by thermal annealing under air andsubsequent cooling. Th rGO coating enhances the mechanical properties of SS316L for various applications.We also improved a number of factors such as good film uniformity and thickness control, minimization ofsolution consumption, large area deposition capability, and cost effectiveness. Our approach elucidates thestructure/function relationship in the rGO films, targeting corrosion-resistance properties that lead to durability,reliability, survivability and maintainability of rGO thin-films. The diverse applicability of our method makes itpromising and warrants market assessment. Such anticorrosive coatings are expected to have a significantimpact on the Canadian industry including manufacturing, automotive and submarine technologies.

现代材料工程中的一个主要挑战是制造成本有效的防腐蚀涂层。还原氧化石墨烯（rGO）是这一竞技场中的一个很好的候选者，因为它可以用于水润滑涂料，为油轮和管道中的油润滑提供环境安全的替代品。重要的努力集中在开发通过热、化学或电处理来生产rGO薄膜的方法上。然而，用于将氧化石墨烯（GO）还原为rGO的最常见的方案依赖于使用有毒溶剂，从而引起严重的安全性和环境问题。尚未评估rGO直接在用于植入应用的不锈钢上的生长。我们最近开发了一种简单的方法，用于在不锈钢（SS 316L）表面上生长多层rGO膜，使用溶液相分子前体的晕苯。Coronene基本上是石墨烯的小薄片，可以通过随后的退火进行二聚。我们的工艺包括滴铸晕苯溶液在SS 316L上，然后在空气中热退火和随后的冷却。GO涂层提高了SS 316L的机械性能，使其适用于各种应用场合，并改善了许多因素，如良好的膜层均匀性和厚度控制，最小化溶液消耗，大面积沉积能力和成本效益。我们的方法阐明了rGO薄膜中的结构/功能关系，目标是耐腐蚀性能，导致耐用性，可靠性，生存性和可维护性的rGO薄膜。我们的方法的不同适用性使其有前途，并保证市场评估。这种防腐涂料预计将对加拿大工业产生重大影响，包括制造业，汽车和潜艇技术。