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.

类石墨烯材料的二维（2D）纳米片在光子学、电子学、光电子学、磁学、能量产生和存储、催化、环境修复和生物应用等多个领域引起了极大的关注。然而，生产这些具有高纯度和明确结构的二维纳米片极具挑战性。这个拟议的为期两年的项目旨在开发一种可持续、创新、可扩展、可靠和高产的策略，用于生产纯相单层或几层二维石墨烯材料纳米片。典型的过程包括将大阳离子电化学嵌入层状材料的层间空间，然后进行温和的剥离过程。通过该策略将制备大量原子级薄的纳米片，包括但不限于石墨烯、硼烯、磷烯、硅烯、锗烯、六方氮化硼、过渡金属二硫属化物、石墨氮化碳、金属碳化物和氮化物。通过该拟议项目，高素质人才（博士后、研究生、暑期本科生）将在这一对艾伯塔省和加拿大具有战略重要性的研究领域接受培训。