Intelligent Design of Electron-rich Intermetallic Materials

Junjie Wang

State Key Laboratory of Solidification Processing, School of Materials Science and Engineering Department, 

Northwestern Polytechnical University, Xi'an, Shaanxi 710072 

EXTENDED ABSTRACT: Electron-rich intermetallic compounds, such as electrides and MAX/MAB phases, possess several key characteristics including low work function, strong electron-donating ability, and strong inert bonding force, which show great potential in various catalytic reactions. However, electron-rich materials exhibit wide compositional variation and diverse structures, which presents a challenge in efficiently designing new multi­element compounds of this type. To address this issue, the speaker has employed materials genetic engineering techniques, such as high-throughput computational screening, structure prediction, and machine learning, to design and develop novel electron-rich materials more efficiently (Figure 1). The speaker will present the results of recent research efforts that utilize these materials genetic engineering methods for the design and development of novel electron-rich materials.

Keywords: electrides; hexagonal MAB phase; high-throughput computing; machine learning;
REFERENCES 

[1] J. Wang et al., J. Am. Chem. Soc. 139 (44), 15668-15680 (2017);
[2] J. Wang et al., Nat. Commun. 10, 2284 (2019);
[3] J. Wang et al., Chem. Mater. 32 (16), 6947-6957 (2020);
[4] J. Wang et al., J. Am. Chem. Soc. 143 (23), 8821-8828 (2021);
[5] J. Wang et al., Adv. Funct. Mater. 32 (17), 2112198 (2022);
[6] J. Wang et al., Angew. Chem. Int. Ed. e202308436 (2023).

Brief Introduction of Speaker
Dr. Junjie Wang

Dr. Junjie Wang is a Professor at Northwestern Polytechnical University, Xi'an, where he holds the deputy director position of the State Key Laboratory of Solidification Processing. Junjie obtained his B.Sc., Master and Ph.D. in Materials Science at Northwestern Polytechnical University. This was followed by a CNRS postdoctoral fellowship at IEMN from 2010 to 2012. Then he worked as a postdoc of VITO from 2012-2013 in Belgium. He was awarded the 2013 JSPS research fellowship and spent two years at NIMS as a JSPS research fellow. He held his first faculty position at the Tokyo Institute of Technology, Tokyo, from 2016 to 2018, before returning to China. He has been engaged in material genetic engineering research of electronic materials, catalytic materials and energy materials, and has published more than 70 papers in academic journals such as "Nature Catalysis" and "JACS".