His research interest focuses on using In-situ/Ex-situ Multimodal Characterizations (especially in-situ TEM, synchrotron X-ray absorption, electrochemical testing etc.) to solve fundamental and technologically-important problems, especially those related to environmental application, energy conversion and storage, nano-electronics and bioelectronics. He has published 153 SCI papers (108 IF > 10) with total citation 22574 times and H-index 61 (google scholar), which include Nat. Mater., Nat. Rev. Chem., Nat. Protoc., Nat. Synth., Nat. Water, Nat. Commun., Chem. Soc. Rev., Prog. Mater. Sci., Matter, Adv. Mater., Angew. Chem. Int. Ed., etc. He was awarded the 2023/2024 Young Collaborative Research Grant (Y-CRF, 4,832,040 HKD) by the University Grants Committee (UGC) of Hong Kong, and he has been listed as the Highly Cited Researcher (Top 1%, Clarivate Analytics) in 2023, 2022, 2020 and 2018. He has also been listed as the World's Top 2% Scientists in Nanosci. & Nanotechnol. for single year in 2023, 2022, 2021 and 2020 (by Stanford University).