SUSCHEM: Exploring Specific Heating in Microwave-assisted Synthesis of Hierarchical Hybrid Nanomaterials for Future Sustainable Batteries

SUSCHEM：探索微波辅助合成未来可持续电池的分层混合纳米材料中的比热

• 批准号: 1707585
• 负责人: Jun Li
• 金额: $ 29.84万
• 依托单位: Kansas State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-08-15 至 2022-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1707585&HistoricalAwards=false
• 关键词: SUSCHEM; Exploring; Specific; Heating; Microwave

PART 1:   NON-TECHNICAL SUMMARYBatteries are ubiquitous electrical energy storage devices in our life to support anything from portable electronics to electrical grids. A key component that determines the cost and performance of batteries is the electrode materials. This project, funded by the Solid State Materials and Chemistry Program in the Division of Materials Research at NSF, seeks to develop new methods to prepare novel electrode materials that can be used for two types of emerging batteries, i.e. sodium ion batteries and magnesium ion batteries. These new battery-types use earth-abundant sodium and magnesium ions in electrochemical reactions and hence have the potential to significantly lower the cost of energy storage compared to current state-of-the-art Li-ion batteries, making them attractive for large-scale electrical energy storage. However, currently used single-phase electrode materials in these batteries exhibit poor stability and a short lifetime due to hosting the much larger sodium ions and higher-charged magnesium ions. Therefore this project targets hybrid materials which consist of active electrode materials deposited on stable three-dimensional nanostructured carbon scaffolds. The research approach makes use of the relatively strong microwave absorption by the nanocarbon materials to accelerate the synthesis process and create strong hybrid materials that otherwise may be unstable in separated phases. In addition to creating a better understanding of the fundamental properties of hybrid solid state materials and potentially improving the performance of electrical energy storage devices, this project provides cross-disciplinary training to students from diverse backgrounds including underrepresented groups. All three aspects are critical for maintaining our nation's leading role in the strategically important fields of energy conversion and storage.PART 2:   TECHNICAL SUMMARYThis project, funded by the Solid State Materials and Chemistry Program in the Division of Materials Research at NSF, targets the development of well-controlled three-dimensional (3D) hierarchical hybrid electrode materials for two types of emerging batteries, i.e. sodium ion batteries and magnesium ion batteries, by depositing desired active electrode materials (metal oxides and chalcogenides) on nanostructured carbon templates using an innovative microwave-assisted synthesis method. Rapid heating, based on the specific microwave absorption of the nanocarbon templates, induces rapid nucleation and growth of metastable phases which combine into stable hybrid electrode materials that cannot be readily synthesized with conventional methods. Different types of nanocarbons, including dispersed nanoflakes of reduced graphene oxides (rGOs), stacked 3D films of carbon nanotubes (CNTs) or electrospun carbon nanofibers (CNFs), and arrays of vertically aligned carbon nanofibers (VACNFs), are investigated as highly conductive and mechanically robust templates to control the morphology, composition and phases of the deposited active electrode materials. This provides techniques for synthesizing delicate 3D hierarchical core-shell hybrid materials containing metastable materials such as hydrated metal oxides (V2O5·nH2O bilayers) and metal chalcogenides (VS4 chains) which have more opened structures to facilitate reversible storage of large Na+ ions and divalent Mg2+ ions. Such hybrid hierarchical materials may break the intrinsic limits of single-phase electrode materials by enhancing the electrical conductivity and reducing the ion diffusion path length in the solid materials while significantly improving the electrode's stability. The capability of fast heating by microwave irradiation shortens the materials synthesis processes and greatly accelerates materials discovery and optimization. This project also provides cross-disciplinary training to both graduate and undergraduate students in nanomaterials synthesis/characterization, electrochemistry and electrical energy storage technologies. Outreach activities are aimed at interesting K-12 students (particularly girls) in Kansas in STEM education, and engaging an undergraduate student from Xavier University (underrepresented minority) in summer research and further career development each year.

第1部分：非技术摘要是我们生活中普遍存在的电力储能设备，以支持从便携式电子设备到电网的任何事物。确定电池成本和性能的关键组件是电子材料。该项目由NSF材料研究部的固态材料和化学计划资助，试图开发新方法来制备新型电子材料，这些材料可用于两种类型的新兴电池，即钠离子电池和镁离子电池。这些新的电池类型在电化学反应中使用地球丰富的钠和镁离子，因此与当前最新的锂离子电池相比，有可能显着降低能源储存成本，从而使其对大型电气存储有吸引力。然而，目前在这些电池中使用的单相电极材料表现出较大的稳定性和短期寿命，这是由于托管更大的钠离子和更高的镁离子。因此，该项目的目标是混合材料，这些材料由沉积在稳定的三维纳米结构碳支架上的活性电极材料组成。该研究方法利用纳米碳材料滥用相对较大的微波滥用，以加速合成过程，并创建强大的混合材料，否则在分离阶段可能会不稳定。除了更好地了解混合固态材料的基本特性并有可能改善电能量存储设备的性能外，该项目还为来自代表性不足的群体在内的潜水员背景的学生提供了跨学科培训。所有这三个方面对于在能源转化和存储的战略重要领域中保持领先地位至关重要。第2部分：技术摘要项目，由NSF材料研究部的固态材料和化学计划资助，针对NSF材料研究部，针对良好控制的三维（3D）层次杂种材料的良好控制材料，用于两种类型的Emerion of Emerion of Emering sodies Sodies sodies sodies sodies sodies i.E.eeging sies i。通过使用创新的微波辅助合成方法，通过将所需的活性电极材料（金属氧化物和硫化剂）沉积在纳米结构的碳模板上。基于纳米碳模板的特定微波苦难的快速加热，可诱导亚稳态的快速成核和生长，这些相结合成稳定的混合电极材料，这些材料无法轻易通过常规方法合成。不同类型的纳米碳，包括还原的石墨烯氧化物（RGO）的分散纳米片，堆叠的3D碳纳米管（CNT）或电气传播碳纳米纤维（CNF）的3D膜，以及对垂直比对的碳nanofirer（空白量）的验证和机构，是指导和机构的机构。和沉积活性电极材料的相位。这提供了合成含有可稳定材料的细腻的3D分层芯壳混合材料，例如水合金属氧化物（V2O5·NH2O双层）和金属辣椒剂（VS4链），它们具有更开放的结构，可促进大型NA+离子和Divalent Mg2+ Ions。这种杂交层次材料可能会通过增强电导率并减少实心材料中的离子扩散路径长度，同时显着提高电极的稳定性，从而破坏单相电极材料的内在限制。通过微波辐射快速加热的能力缩短了材料合成过程，并大大加速了材料的发现和优化。该项目还为纳米材料合成/表征，电化学和电力储能技术的研究生和本科生提供跨学科培训。宣传活动针对堪萨斯州的有趣的K-12学生（部分是女生），并参与Xavier大学（代表性不足的少数民族）的一名本科生参与夏季研究和每年进一步的职业发展。

项目成果

Microwave-assisted high-yield exfoliation of vanadium pentoxide nanoribbons for supercapacitor applications

• DOI: 10.1016/j.electacta.2019.135200
• 发表时间: 2020-01
• 期刊: Electrochimica Acta
• 影响因子: 6.6
• 作者: Ya Chen;K. Muthukumar;Levon Leban;Jun Li

High Performance Tin-coated Vertically Aligned Carbon Nanofiber Array Anode for Lithium-ion Batteries

• DOI: 10.1557/adv.2018.520
• 发表时间: 2018-07
• 期刊: MRS Advances
• 影响因子: 0.8
• 作者: G. P. Pandey;K. Jones;Emery Brown;Jun Li;L. Meda

Frontiers in hybrid and interfacial materials chemistry research

• DOI: 10.1557/mrs.2020.271
• 发表时间: 2020-11-01
• 期刊: MRS BULLETIN
• 影响因子: 5
• 作者: Guiton, Beth S.;Stefik, Morgan;Talham, Daniel R.
• 通讯作者: Talham, Daniel R.

Mechanistic understanding of Li metal anode processes in a model 3D conductive host based on vertically aligned carbon nanofibers

• DOI: 10.1016/j.carbon.2023.118174
• 发表时间: 2023-05-31
• 期刊: CARBON
• 影响因子: 10.9
• 作者: Rajendran，Sabari;Sekar，Archana;Li，Jun
• 通讯作者: Li，Jun

3D printing of hybrid MoS2-graphene aerogels as highly porous electrode materials for sodium ion battery anodes

• DOI: 10.1016/j.matdes.2019.107689
• 发表时间: 2019-05-15
• 期刊: MATERIALS & DESIGN
• 影响因子: 8.4
• 作者: Brown, Emery;Yan, Pengli;Li, Jun
• 通讯作者: Li, Jun