Research

Xie's group at Purdue University mainly focuses on the catalyst development for PEMFC and the energy storage materials fabrication for lithium ion batteries.

PGM-free Catalyst

Representative publications:

[1] Nature Catalysis, 2023, 6(12), 1215-1227

[2] Nature Energy, 2022, 7(7), 652-663

Pt-based Catalyst

Representative publications:

[1] Matter, 2023 6(3), 963-982

[2] Energy & Environmental Science, 2023, 16(7), 2977-2990.

Lithium ion batteries

Representative publications:

[1] Nature Energy, 2017, 2(7), 1-10.

[2] Energy & Environmental Science, 2023, 16(12), 5904-5915.

[3] ACS Energy Letters, 2024, 9(10), 5002-5011

Advanced Characterization

Our group is also interested in uncovering new chemistries and physics associated with energy materials (e.g., catalysts and batteries) through advanced characterization techniques, such as synchrotron (in-situ XRD/XAS) and electron-based methods (in-situ TEM/Cryo-TEM), in collaboration with external groups.

In situ TEM revealed the Li dedrite growth with the collaborations with Dr. Yuzi Liu and Prof. Eric Stach from Argonne National Laboratories and University of Pennsylvania.

[1] Nature Energy, 2017, 2(7), 1-10.

Direct SEI structure on the Nb2O5 anode surface, revealed by Cryo-TEM with the help of Prof. Eric Stach from University of Pennsylvania.

[1] Energy & Environmental Science, 2023, 16(12), 5904-5915.

In opertando XANES characterization of the V2O5 cathode during discharge/charge with the collaboration of Dr. Yang Ren and Dr. Chengjun Sun from Argonne National Laboratories.

[1] Nature Communications, 2015, 6(1), 6127.

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