| About this Abstract |
| Meeting |
Materials Science & Technology 2020
|
| Symposium
|
Functional Defects in Electroceramic Materials
|
| Presentation Title |
Thermodynamic Insights into Engineering 2D Nano-ceramics Towards Powering Portable Electronic Devices |
| Author(s) |
Cody B. Cockreham, Xianghui Zhang, Gengnan Li, Hongwu Xu, Di Wu |
| On-Site Speaker (Planned) |
Cody B. Cockreham |
| Abstract Scope |
Two-dimensional (2D) nano-ceramic materials like transition metal-based layered double hydroxides (TM-LDH) and layered early transition metal carbides and nitrides (MXenes) are at the forefront of developing high-performance materials to meet the energy storage and power storage demands of portable electronics. Due to the presence of redox capable transition metals and large available surface areas, 2D nano-ceramics provide good specific capacitance and fast charge/discharge rates. These pseudocapacitive materials store charge with redox and intercalative active surface sites. To promote stable active surface sites we tune the chemistry, structure, and morphology. Manipulating the synthesis conditions of MXenes and TM-LDHs, we study the resulting relationships by investigating interlayer species, surface composition, structural/morphological order, and electrochemical performance. Using calorimetry, we probe the energetics of stability and surface interactions. By drawing connections with thermodynamic parameters to the synthesis-controlled variables of our engineered nano-ceramics, we provide insights to advance the design of functional ceramics. |