High yield production of phase-pure mono- or few-layer two-dimensional (2D) nanosheets of graphene like materials by electrochemical exfoliation

通过电化学剥离高产率生产纯相单层或少层二维（2D）石墨烯类材料纳米片

• 批准号: 571325-2021
• 负责人: Lu, Qingye
• 金额: $ 3.64万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=729144
• 关键词: yield; production; phase; pure; mono

Two dimensional (2D) nanosheets of graphene-like materials have attracted great attention in diverse fields including photonics, electronics, optoelectronics, magnetism, energy generation and storage, catalysis, environment remediation, and bio-application, to name but a few. However, producing these 2D nanosheets with high purity and defined structure is extremely challenging. This proposed two-year project aims to develop a sustainable, innovative, scalable, reliable, and high-yield strategy for producing phase-pure mono- or few-layer 2D nanosheets of graphene-like materials. The typical procedure will involve an electrochemical intercalation of large cations into the interlayer spaces of layered materials, followed by a mild exfoliation process. Large numbers of atomically thin nanosheets will be prepared by this strategy, including but not limited to graphene, borophene, phosphorene, silicene, germanene, hexagonal boron nitride, transition metal dichalcogenides, graphitic carbon nitride, metal carbides and nitrides. The highly qualified personnel (postdoc, graduate students, summer undergraduates) will be trained in this research area of strategic importance to Alberta and Canada through this proposed project.

石墨烯状材料的二维纳米片（2D）纳米片在包括光子学，电子学，光电子，磁性，能量产生和存储，催化，环境补救和生物应用等不同领域引起了极大的关注。但是，生产具有较高纯度和定义结构的这2D纳米片是极具挑战性的。该提议的为期两年的项目旨在开发一种可持续的，创新的，可扩展的，可靠和高收益的策略，用于生产类似石墨烯的材料的相位单层或几层纳米片。典型的程序将涉及大阳离子在分层材料的层间空间中进行电化学插入，然后进行轻度的去角质过程。该策略将制备大量原子稀薄的纳米片，包括但不限于石墨烯，唯一的磷烯，磷，硅，德国烯，六角形硝化硼，过渡金属二分法，石墨二硫酸盐，石墨性碳氮化碳，硝酸盐，金属碳化物和硝酸盐。高素质的人员（博士后，研究生，夏季本科生）将通过该拟议项目在对艾伯塔省和加拿大的战略重要性中进行培训。