CAREER: Coordination Polymer Superlattices with Tailored Properties through Chemical Vapor Deposition Synthesis

职业:通过化学气相沉积合成具有定制特性的配位聚合物超晶格

基本信息

  • 批准号:
    1848046
  • 负责人:
  • 金额:
    $ 62.98万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2019
  • 资助国家:
    美国
  • 起止时间:
    2019-02-01 至 2024-01-31
  • 项目状态:
    已结题

项目摘要

Non-Technical AbstractCoordination polymers are versatile materials that are currently used to filter pollutants, store energy, and convert raw materials into useful chemicals. Recently, there has been great interest in using the extensive structural and chemical tunability of these materials to make a new generation of electronic devices, such as switches, sensors, and smart energy storage systems. However, the poor electrical performance of these materials, and a lack of synthetic methods capable of creating desired material properties has slowed progress. This CAREER project, supported by the Solid State and Materials Chemistry program in the Division of Materials Research, addresses these challenges by developing new methods to grow high quality crystalline coordination polymers from the gas phase. Furthermore, this proposal addresses the need to improve the electrical performance of these materials by creating a new material architecture called a superlattice, which is composed of single crystal sheets of various coordination polymers stacked on top of one another. The composition, structure, and layering of the individual sheets can be controlled. Because structure and function are so tailorable in the superlattice, it has the potential to support enhanced and novel properties, allowing it to exceed the performance limits of conventional polymers and solid-state materials. This research can enable technological advances in energy storage and conversion, and spawn a new generation of filters, actuators, sensors, and optical/electronic devices. Many of these technologies can be used to assure the sustainability and improved welfare of society. The research innovations and methods used in this research provide a multitude of student training opportunities in the synthesis, structure-property determination, and application of materials. In addition to the research objectives described in this proposal, the principal investigator is introducing two education and outreach activities: a podcast channel focused on materials science topics, and an online crowd-sourced database that curates materials synthesis protocols. These activities aim to increase the participation of under-represented minorities in STEM fields and to build a research infrastructure to accelerate the dissemination and verification of research protocols. Technical AbstractCoordination polymers (CPs) can be designed to express a diverse array of structures, porosities, and chemistries rendering them useful for applications in energy storage, separations, and catalysis. However, CPs with more complex functionalities and responsive properties are desired if they are to be successfully integrated into electronic devices. The principal hypothesis of this project, supported by a CAREER award through the Solid State and Materials Chemistry program in the Division of Materials Research, is that a CP superlattice can support complex, multivariate, and responsive properties. A superlattice comprising layered two-dimensional CP crystal lattices is an attractive architecture, because its inherent hierarchies of structure and composition can be tailored to promote desired or emergent physical properties. This CAREER project addresses the development of chemical vapor deposition methods for the tailored synthesis of CP superlattices and the study of these materials' dynamic and responsive properties. Chemical vapor deposition (CVD) is introduced as a strategy for the preparation of high-quality crystalline CP superlattices. The project focuses on three core objectives. First, the scope and mechanism of chemical vapor deposition synthesis of CP superlattices are being established. Second, transport studies conducted on devices fabricated on single crystals of CP superlattices are being used to elucidate their electronic properties. Third, heterostructured CP superlattices with multivariate and responsive properties are being developed and their potential to surpass the performance limits of conventional bulk 3D materials is being determined. In addition to the research objectives of this project, the principal investigator has introduced two education and outreach activities: a podcast channel focused on materials science topics, and an online crowd-sourced database that curates CVD synthesis protocols. These activities aim to increase the participation of under-represented minorities in STEM fields and to build a research infrastructure to accelerate the dissemination and verification of research protocols.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
配位聚合物是目前用于过滤污染物、储存能量和将原材料转化为有用化学品的通用材料。最近,人们对使用这些材料的广泛的结构和化学可调性来制造新一代电子器件,如开关、传感器和智能储能系统产生了极大的兴趣。然而,这些材料的电性能差,以及缺乏能够产生所需材料特性的合成方法,减缓了进展。该职业项目由材料研究部门的固态和材料化学项目支持,通过开发从气相生长高质量结晶配位聚合物的新方法来应对这些挑战。此外,该提案通过创建一种称为超晶格的新材料架构来解决改善这些材料的电性能的需求,该超晶格由堆叠在彼此顶部的各种配位聚合物的单晶片组成。可以控制各个片材的组成、结构和分层。由于超晶格的结构和功能是如此可定制,它有可能支持增强和新颖的性能,使其超过传统聚合物和固态材料的性能极限。 这项研究可以促进能量存储和转换方面的技术进步,并催生新一代滤波器、执行器、传感器和光学/电子设备。其中许多技术可用于确保社会的可持续性和改善社会福利。在这项研究中使用的研究创新和方法提供了大量的学生在合成,结构性能测定和材料的应用培训的机会。除了本提案中描述的研究目标外,首席研究员还介绍了两项教育和外展活动:一个专注于材料科学主题的播客频道,以及一个在线众包数据库,用于策划材料合成协议。这些活动旨在增加在STEM领域代表性不足的少数群体的参与,并建立研究基础设施,以加速研究协议的传播和验证。配位聚合物(CP)可以被设计成表达各种各样的结构、孔隙率和化学性质,使它们在能量储存、分离和催化方面的应用非常有用。然而,如果要将CP成功地集成到电子设备中,则需要具有更复杂功能和响应特性的CP。该项目的主要假设,通过材料研究部的固态和材料化学计划获得了CAREER奖的支持,是CP超晶格可以支持复杂,多元和响应特性。包含层状二维CP晶格的超晶格是一种有吸引力的架构,因为其固有的结构和组成层次可以被定制以促进期望的或出现的物理性质。这个CAREER项目致力于开发用于定制合成CP超晶格的化学气相沉积方法,并研究这些材料的动态和响应特性。介绍了化学气相沉积(CVD)作为制备高质量结晶CP超晶格的一种策略。 该项目侧重于三个核心目标。首先,CP超晶格的化学气相沉积合成的范围和机制正在建立。 其次,对CP超晶格单晶上制造的器件进行的输运研究正在被用来阐明它们的电子特性。第三,具有多元和响应特性的异质结构CP超晶格正在开发中,并且正在确定其超越常规块体3D材料的性能极限的潜力。 除了该项目的研究目标外,首席研究员还介绍了两项教育和推广活动:一个专注于材料科学主题的播客频道,以及一个在线众包数据库,用于策划CVD合成协议。这些活动旨在提高代表性不足的少数民族在STEM领域的参与,并建立研究基础设施,以加速研究协议的传播和验证。该奖项反映了NSF的法定使命,并通过使用基金会的知识价值和更广泛的影响审查标准进行评估,被认为值得支持。

项目成果

期刊论文数量(10)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
2D molecular crystal lattices: advances in their synthesis, characterization, and application
  • DOI:
    10.1039/c9ta06534b
  • 发表时间:
    2019-10
  • 期刊:
  • 影响因子:
    11.9
  • 作者:
    Marina A. Solomos;F. Claire;T. Kempa
  • 通讯作者:
    Marina A. Solomos;F. Claire;T. Kempa
Selective CO2 Reduction Electrocatalysis using AgCu Nanoalloys Prepared by a Host-Guest Method
主客体法制备的 AgCu 纳米合金选择性 CO2 还原电催化
  • DOI:
  • 发表时间:
    2024
  • 期刊:
  • 影响因子:
    10.8
  • 作者:
    Śliwa, M.;Zhang, H.;Gao, J.;Hall, A. S.;Kempa, T. J.
  • 通讯作者:
    Kempa, T. J.
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