RII Track 4: Understanding Defect Chemistry in Sodium Chalcogenide Superionic Conductors by Advanced Neutron Technology
RII 轨道 4:通过先进中子技术了解硫属化钠超离子导体中的缺陷化学
基本信息
- 批准号:2033397
- 负责人:
- 金额:$ 25.25万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2020
- 资助国家:美国
- 起止时间:2020-12-15 至 2024-11-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Solid-state sodium (Na) superionic conductors play a significant role in applications for sensors and solid-state Na batteries. Chalcogenide Na-ion conductors have attracted intense attentions due to high Na+ ionic conductivity and cold-press included densification. For these conductors, the presence of Na defects (i.e. vacancies or interstitials) in their crystal structures strongly influence their ionic conductivities. Thus, it is essential to better understanding on the subtle structural change for the synthesis and doping of chalcogenide Na-ion conductors. One main challenge is the difficulty to accurately catch the subtle defect structure through regular X-ray diffraction technology. This project takes advantages of high resolution of neutrons to access advanced neutron facilities at Oak Ridge National Laboratory (ORNL), where the PI and her collaborators will investigate the crystal structures of Na3SbS4-xSex materials to obtain the fundamental knowledge of defect chemistry in chalcogenide conductors. The findings of this research will promote the development of new solid electrolytes for high performance solid-state Na batteries. In addition, this project will establish a longstanding collaboration between University of Louisville (UofL) and ORNL, which is a bridge to benefit other faculties at Kentucky to foster more collaborative research in boarder materials science fields. Chalcogenide Na superionic conductors (i.e. Na3PCh4 and Na3SbCh4 (Ch=S, Se)) have great potential for applications in solid-state Na batteries. In these conductors, defect chemistry such as Na vacancies significantly affect the ion transport across crystal frameworks. The goal of this proposed research is to use Na3SbS4-xSex conductors as model materials to understand the physical principle underlying the defect changes and reveal how the defect local structures influence the Na+ ion diffusion. Through a collaborative research with neutron scientists in Spallation Neutron Source (SNS) at ORNL, we aim to advance the current state-of-the-art understanding on defect chemistry and their effects on the polymorphs as well as ion transport in chalcogenide Na-ion conductors. This research will involve: (1) Employ in situ neutron diffraction to closely observe phase formation and track the subtle structure changes such as Na defects for Na3SbS4-xSex conductors; (2) Reveal the Se doping effects on the crystal structure (phase stability and Na defect dynamics) as well as the ion diffusion across crystals of Na3SbS4-xSex conductors. The successful demonstration of the proposed work will provide a new fundamental understanding on the synthesis and ion transport in Na3SbS4-xSex chalcogenide conductors. The obtained knowledge will not only pave the way to understand other defects-contained crystalline Na-ion conductors, but also promote the development of new solid electrolytes in solid-state Na batteries for future energy storage.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.
固态钠(Na)超离子导体在传感器和固态钠电池的应用中发挥着重要作用。硫系钠离子导体由于具有高的钠离子电导率和冷压致密化而引起了人们的广泛关注。对于这些导体,在它们的晶体结构中的Na缺陷(即空位或晶体)的存在强烈地影响它们的离子电导率。因此,更好地理解硫系钠离子导体的合成和掺杂的细微结构变化是必要的。一个主要挑战是难以通过常规X射线衍射技术准确捕捉细微缺陷结构。该项目利用中子的高分辨率访问橡树岭国家实验室(ORNL)的先进中子设施,在那里PI和她的合作者将研究Na 3SbS 4-xSex材料的晶体结构,以获得硫属化物导体中缺陷化学的基础知识。本研究结果将促进高性能固态钠电池新型固体电解质的开发。此外,该项目将建立路易斯维尔大学(UofL)和ORNL之间的长期合作关系,这是一个桥梁,使肯塔基州的其他院系受益,以促进在更广泛的材料科学领域的合作研究。硫系钠超离子导体(Na 3 PCh 4和Na 3SbCh 4(Ch=S,Se))在固态钠电池中具有很大的应用潜力。在这些导体中,缺陷化学,如钠空位显着影响跨晶体框架的离子传输。本研究的目的是利用Na 3SbS 4-xSex导体作为模型材料,以了解缺陷变化的物理原理,并揭示缺陷局部结构如何影响Na+离子扩散。通过与ORNL的Spanish中子源(SNS)的中子科学家合作研究,我们的目标是推进当前最先进的理解缺陷化学及其对硫属化物Na离子导体中的多晶型物和离子传输的影响。这项研究将涉及:(1)利用中子衍射原位观察Na_3SbS_4-xSex导体的相形成过程,并跟踪Na缺陷等细微结构变化;(2)揭示Se掺杂对Na_3SbS_4-xSex导体晶体结构(相稳定性和Na缺陷动力学)以及离子在晶体中扩散的影响。该工作的成功演示将为Na 3SbS 4-xSex硫族化合物导体的合成和离子输运提供新的基本理解。所获得的知识不仅为了解其他含有缺陷的晶体钠离子导体铺平了道路,而且还促进了未来能量存储固态钠电池中新型固体电解质的开发。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(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Visualization of Solid‐State Synthesis for Chalcogenide Na Superionic Conductors by in‐situ Neutron Diffraction
原位中子衍射可视化硫属化物 Na 超离子导体的固态合成
- DOI:10.1002/cssc.202101839
- 发表时间:2021
- 期刊:
- 影响因子:8.4
- 作者:Halacoglu, Selim;Chertmanova, Sabina;Chen, Yan;Li, Yang;Rajapakse, Manthila;Sumanasekera, Gamini;Narayanan, Badri;Wang, Hui
- 通讯作者:Wang, Hui
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Hui Wang其他文献
Neural interconnection between acupoint “Chengshan”(承山BL57)and sciatic nerve in the rat
- DOI:
10.1016/j.wjam.2021.02.002 - 发表时间:
2021 - 期刊:
- 影响因子:0.7
- 作者:
Shuang Wu;Jia Wang;Dongsheng Xu;Hui Wang;Ling Zou;Yuxin Su;Yi Shen;Yating Guo;Jingjing Cui;Wanzhu Bai - 通讯作者:
Wanzhu Bai
Strength order and nature of the p-hole bond of cyanuric chloride and 1,3,5-triazine with halide
氰尿酰氯和1,3,5-三嗪与卤化物的p空穴键的强度顺序和性质
- DOI:
- 发表时间:
2015 - 期刊:
- 影响因子:3.3
- 作者:
Hui Wang;Chen Li;Weizhou Wang;Wei Jun Jin - 通讯作者:
Wei Jun Jin
The incidence of heterogeneous vancomycin-intermediate Staphylococcus aureus correlated with increase of vancomycin MIC
万古霉素中间型金黄色葡萄球菌异质性发生率与万古霉素MIC升高相关
- DOI:
- 发表时间:
- 期刊:
- 影响因子:2.9
- 作者:
Hongbin Chen;Yudong Liu;Wenjia Sun;Minjun Chen;Hui Wang - 通讯作者:
Hui Wang
Government Protection and Corporate Risk Management in China
中国的政府保护和企业风险管理
- DOI:
10.2753/ces1097-1475420201 - 发表时间:
2009-03 - 期刊:
- 影响因子:0
- 作者:
Hui Wang;Jianbing Huang - 通讯作者:
Jianbing Huang
A new model for the identification of subcritical surface subsidence in deep pillarless mining
深部无矿柱开采亚临界地表沉陷识别新模型
- DOI:
10.1016/j.engfailanal.2021.105631 - 发表时间:
2021 - 期刊:
- 影响因子:4
- 作者:
Ruikai Pan;Yong Li;Hui Wang;Jie Chen;Youlin Xu;Hongyun Yang;Shugang Cao - 通讯作者:
Shugang Cao
Hui Wang的其他文献
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{{ truncateString('Hui Wang', 18)}}的其他基金
Ligand Dynamics and Chemistry on Locally Curved Metallic Nanoparticle Surfaces
局部弯曲金属纳米颗粒表面的配体动力学和化学
- 批准号:
2202928 - 财政年份:2022
- 资助金额:
$ 25.25万 - 项目类别:
Standard Grant
VIPIRS - Virus Identification via Portable InfraRed Spectroscopy
VIPIRS - 通过便携式红外光谱仪进行病毒识别
- 批准号:
EP/V026488/2 - 财政年份:2021
- 资助金额:
$ 25.25万 - 项目类别:
Research Grant
Multimodal Video Search by Examples (MVSE)
多模态视频搜索示例 (MVSE)
- 批准号:
EP/V002740/2 - 财政年份:2021
- 资助金额:
$ 25.25万 - 项目类别:
Research Grant
Multimodal Video Search by Examples (MVSE)
多模态视频搜索示例 (MVSE)
- 批准号:
EP/V002740/1 - 财政年份:2021
- 资助金额:
$ 25.25万 - 项目类别:
Research Grant
CAREER:Understanding Interfaces in Sulfide-based All-Solid-State Na Batteries
职业:了解硫化物基全固态钠电池中的界面
- 批准号:
2047460 - 财政年份:2021
- 资助金额:
$ 25.25万 - 项目类别:
Continuing Grant
VIPIRS - Virus Identification via Portable InfraRed Spectroscopy
VIPIRS - 通过便携式红外光谱仪进行病毒识别
- 批准号:
EP/V026488/1 - 财政年份:2020
- 资助金额:
$ 25.25万 - 项目类别:
Research Grant
Excellence in Research: Reconfigurable Supply Chain Network Design and Assembly Planning for Factory-in-a-Box Manufacturing
卓越研究:盒装工厂制造的可重构供应链网络设计和装配规划
- 批准号:
1901109 - 财政年份:2019
- 资助金额:
$ 25.25万 - 项目类别:
Standard Grant
EAGER/Collaborative Research: Explore the Theoretical Framework of Engineering Knowledge Transfer in Cybermanufacturing Systems
EAGER/协作研究:探索网络制造系统中工程知识转移的理论框架
- 批准号:
1744131 - 财政年份:2017
- 资助金额:
$ 25.25万 - 项目类别:
Standard Grant
Establishment of International Plant and Insect Pathogen Sequence Database (IPIPSD) Using Existing Deep Sequencing Data
利用现有深度测序数据建立国际植物和昆虫病原体序列数据库(IPIPSD)
- 批准号:
NE/L012863/1 - 财政年份:2014
- 资助金额:
$ 25.25万 - 项目类别:
Research Grant
GOALI: Engineering-Driven Modeling of Multi-Resolution Data for Surface Variation Control
GOALI:用于表面变化控制的多分辨率数据的工程驱动建模
- 批准号:
1434411 - 财政年份:2014
- 资助金额:
$ 25.25万 - 项目类别:
Standard Grant
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