Production of graphene using diamagnetic graphite ore

利用抗磁性石墨矿生产石墨烯

• 批准号: 486116-2015
• 负责人: Yu, Aiping
• 金额: $ 1.82万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=585411
• 关键词: Production; graphene; using; diamagnetic; graphite

Saint Jean Carbon, one of Canada's leading graphite mining companies, is currently planning to create a commercial manufacturing platform for graphene in order to take advantage of high value-added properties associated with this emerging material. Recently, Saint Jean developed a very unique product for the graphite market, called diamagnetic graphite. These materials find rich applications in levitation and electronic devices. However most conventional diamagnetic materials with high diamagnetic susceptibility are metals, which are both prohibitively heavy and expensive. Thus, Saint Jean is planning to explore ways to produce diamagnetic graphene material to meet and exceed the performance of their current diamagnetic graphite product. Conventional graphene production, using Hummer's method, does not apply to diamagnetic graphite ore as it only applies to graphite powder with particle sizes smaller than 10 µm. Grinding graphite ore to such a small size requires a ball mill, electronic sieve, and other expensive equipment and the process incurs high yield loss. Saint Jean will partner with Prof. Aiping Yu at the University of Waterloo to develop a new approach for diamagnetic graphene material production using the company's graphite ore. They will also work together to fully characterize the resulting material to ensure it meets performance expectations for commercial production. The developed technology will enable Saint Jean Carbon to have a new type a graphene produce, which will bring significant economic benefits to them. Moreover, the new knowledge and techniques developed for producing graphene directly from graphite ore will save the Canadian graphite industry millions of dollars in operating, equipment, and maintenance costs, but will also introduce new graphene products to the down-stream industry, including electronics, energy storage, plastic, coating and biomedical industry.

Saint Jean Carbon 是加拿大领先的石墨开采公司之一，目前正计划创建石墨烯商业制造平台，以利用与这种新兴材料相关的高附加值特性。最近，圣让为石墨市场开发了一种非常独特的产品，称为抗磁性石墨。这些材料在悬浮和电子设备中有着丰富的应用。然而，大多数具有高抗磁化率的传统抗磁材料是金属，其既重又昂贵。因此，Saint Jean 计划探索生产抗磁性石墨烯材料的方法，以满足并超越其当前抗磁性石墨产品的性能。 传统的石墨烯生产采用Hummer法，不适用于抗磁性石墨矿石，因为它仅适用于粒径小于10微米的石墨粉。将石墨矿石磨至如此小的尺寸需要球磨机、电子筛和其他昂贵的设备，并且该过程会产生很高的产量损失。 Saint Jean 将与滑铁卢大学的 Aiping Yu 教授合作，开发一种利用该公司的石墨矿石生产抗磁性石墨烯材料的新方法。他们还将共同努力，全面表征所得材料，以确保其满足商业生产的性能预期。所开发的技术将使Saint Jean Carbon能够生产出新型石墨烯，这将为他们带来显着的经济效益。此外，新知识、新技术 直接从石墨矿石生产石墨烯而开发的技术将为加拿大石墨行业节省数百万美元的运营、设备和维护成本，同时也将为下游行业推出新的石墨烯产品，包括电子、储能、塑料、涂料和生物医学行业。