中国科学院大学环境电镜课题组是2024年由孙宪虎博士加盟中国科学院大学化学科学学院组建。课题组围绕先进原位电镜技术、微纳反应装置开发和材料智能制造，开展能源和催化材料的原位合成和反应动力学研究。通过开发微纳反应装置提供材料反应外场；联用环境气氛电镜技术（Environmental TEM）、环境液相电化学电镜技术（Liquid-cell electrochemical TEM）、冷冻电镜技术 （Cyro-TEM）和原位谱学技术，多维度、多尺度解构功能材料在反应中的活性结构基因；利用大数据和机器学习，构建活性结构与性能的构效关系；凭借人工智能和机器人定向开发（智能制造）富含活性结构基因的高效功能材料，致力于“双碳”发展战略。

              

硕士研究生 （1-2名/年）

申请人应具有材料、化学、物理或其他相关领域学士学位，具有工业催化背景优先。

博士研究生（1名/年）

申请人应具有材料、化学、物理或其他相关领域硕士学位，或入职前即将获得相应硕士学位；发表过化学，物理，材料顶级期刊。

博士后研究员（2名额，2025年）

申请人应具有材料、化学、物理或其他相关领域博士学位，或入职前即将获得相应博士学位。发表过化学，物理，材料顶级期刊至少1篇。

   

​2016-2022     博士     纽约州立大学

2022-2023     博后     劳伦斯伯克利国家实验室 

2016.08-2022.02   纽约州立大学                     科研助理

2019.03-2022.02   匹兹堡大学                        访问学生

2018.06-2018.09   布鲁克海文国家实验室       访问学生

2018.03-2019.03   美国标准与技术研究所       访问学生

• 中国国家留学基金委海外优秀自费留学生奖学金 (2022)

• 美国纽约州立大学博士研究生优秀科研奖 (2022)

• 山西省优秀硕士毕业论文 (2016)

• 研究生国家奖学金 (2015)

#  co-first author              *  corresponding author

2025

32. D.X. Wu, X.H. Sun, L.F. Zou, D. Zakharov, J.C. Yang, G.W. Zhou*. Dynamic surface restructuring in Cu(Au) alloys driven by oxygen-mediated Au mobility. J. Phys. Chem. Lett. 16, 7280-‌7287, 2025. (download)

31. X.H. Sun*, D. Wu, J. Wang, S.B. Patel1, W. Zhu, J. Yang, T. T. Yang, S. Ye, X. Chen, Y. Zhu, L. Qiao, M. Li, S.D. House, J. Su, W.A. Saidi, J.A. Boscoboinik, J.C. Yang, R. Sharma, G.W. Zhou*. Oscillatory redox behavior in oxides: cyclic surface reconstruction and reactivity modulation via Mars-van Krevelen mechanism. PNAS 122, e2422711122 (2025). (download)

30. W. Tu, Z. Zeng, Y.J. Zhao, Z.H. Jia, C.X. Meng, W. Liu*, X.H. Sun*, J.Y. Huang*, In-situ multi-scale study of iron oxidation at high temperatures. Nano Letters 25, 20, 8089-8095 (2025). (download)

29. Y.J. Zhao, M.R. Huang, Y.S. Kang, Y. Fang, T.Y. Zhao, H. Wang, J.Y. Ou, J.J. Liu, M.X. Zhong, T. Wang, X.H. Sun*, C.Y. Zhao*, D. Wang*. Ligand effects enhancing low-temperature oxygen reduction kinetics in neutral conditions. Energy & Environmental Science 18, 5298-5308 (2025). (download)  

(Energy & Environmental Science Recent HOT Articles, 2025)

28. Z. Zhou, X. Chen, D. Wu, D. Zhu, J. Chen, X.H. Sun, M. Li, C. Cai, J. Yang, G. Zhou*, In-situ electron microscopy: atomic-level insights into metal oxidation dynamics. npj Materials Degradation, 9, 28 (2025). (download)

2024

27. Q. B. Zhang^#, Z.G. Song^#, X. H. Sun^#, Y. Liu^#, J.W. Wan, S. B. Betzler, Q. Zheng, J.Y. Shangguan, K.C. Bustillo, P. Ercius, P. Narang, Y. Huang, H. M. Zheng*, Atomic dynamics of electrified solid-liquid interfaces in liquid cell TEM. Nature 630, 643-647 (2024). (download)

26. Z. Liang, D. Wu, X.H. Sun, X. Chen, D. Zakharov, J. Yang, G.W. Zhou, Atomic-scale visualization of surface segregation and ordering of Pt in dilute Cu(Pt) alloy under hydrogen atmosphere. Journal of Physical Chemistry C 128 (43), 18236-18246 (2024). (download)

25. Y.C. Zhang ^#, H. Chen ^#, R.Z. Yu , W. Yang , J. He , H.Y. Li , X.H. Sun*, Zhengyan Lun*, Unlocking fast Li ion transport in micrometer sized Mn based cation disordered rocksalt cathodes. J. Energy Chem. 99, 645-653 (2024). (download) 

24. S.N. Ye, X.B. Chen, X.H. Sun, S. Patel, Y.P. Wu, T. Singler, P. Zhang, G.W. Zhou*, Oxidation-induced oxide shell rupture and phase separation in eutectic gallium-indium nanoparticles, ACS Nano, 18, 36, 25107 (2024). (download)

   

23. D.X. Wu^#, X.H. Sun^#, J.C. Yang, G.W. Zhou^*, Intermittent oxidation kinetics and metal/oxide interfacial undulation, Phys. Rev. B 110, 085402 (2024). (download)

22. H. Chen^#, Y. Zhang^#, Y. Zhao^#, J. Liao, J. He, R. Yu, S. Tan, R. Zhang, T. Hou*, X.H. Sun*, Z. Lun*, Chelator optimization enabled defect engineering for cation disordered rocksalt cathodes via solution-based synthesis method. Energy Storage Materials, 103990 (2024). (download)

21. X. H. Sun, D. X. Wu, W. A. Saidi, W. Zhu, W. D. Yang, S. D. House, M. Li, R. Sharma, J. C. Yang, and G. W. Zhou, Atomic dynamics of multi-interfacial migration and transformations. Small, 2305746 (2024). (download)

Before 2024

20. X. H. Sun^#, D. X. Wu^#, L. F. Zou, S. D. House, X. B. Chen, M. Li, D. N. Zakharov, J. C. Yang, G. W. Zhou, Dislocation-induced stop-and-go kinetics of interfacial transformations. Nature, 607, 708–713 (2022). (download)      

          

19. X. H. Sun, J. Y. Wang, X. B. Chen, S. N. Ye, Z. L. Liang, J. C. Yang, G. W. Zhou, In-situ environmental TEM observations of structural evolution of oxygenated Cu(110) in CO. Microscopy & Microanalysis, 28, 186-188 (2022).

18. Z. L. Liang, J. Y. Wang, X. H. Sun, X. Chen, D. Zakharov, G. W. Zhou, In-situ Atomic-scale Observations of Disconnection Dynamics at the Metal/Oxide Interfaces. Microscopy & Microanalysis, 28, 150-151 (2022).

17. X. B. Chen, S. M. Zhang, C. Li, Z. J. Liu, X. H. Sun, S. B. Cheng, D. N. Zakharov, S. Hwang, Y. M. Zhu, J. Y. Fang, G. F. Wang, and G. W. Zhou, Composition-dependent ordering transformations in Pt-Fe nanoalloys. PNAS 119, e2117899119 (2022).

16. X. B. Chen, Z. Y. Liu, D. X. Wu, N. Cai, X. H. Sun, D. N. Zakharov, S. Hwang, D. Su, G. F. Wang, and G. W. Zhou, Passive Oxide Film Growth Observed On the Atomic Scale. Advanced Materials Interfaces 2102487 (2022).

15. H. W. Yao, Y. M. Liu, X. H. Sun, Y. P. Lu, T. M. Wang, and T. J. Li, Microstructure and mechanical properties of Ti₃V₂NbAl_xNi_y low-density refractory multielement alloys. Intermetallics 133, 107187 (2021).

14. Z. L. Liang, D. X. Wu, X. H. Sun, X. B. Chen, D. Zakharov, G. W. Zhou, Hydrogen-adsorption induced surface segregation and chemical ordering in Cu-Pt alloys. Microscopy & Microanalysis 27, 50-51 (2021).

13. X. B. Chen, J. Y. Wang, X. H. Sun, D. Zakharov, S. Hwang, G. W. Zhou, In-situ atomic-scale visualization of atomic-step induced NiO growth during the oxidation of Ni. Microscopy & Microanalysis 27, 1958-1959 (2021).

12. X. H. Sun^#, D. X. Wu^#, W. H. Zhu, X. B. Chen, R. Sharma, J. C. Yang, and G. W. Zhou, Atomic origin of the autocatalytic reduction of monoclinic CuO in a hydrogen atmosphere. The Journal of Physical Chemistry Letters, 12, 9547–9556 (2021).

11. X. H. Sun, R. B. Garza, X. B. Chen, M. Li, S. D. House, W. A. Saidi, J. C. Yang, G. W. Zhou, In-situ ETEM observation of intergranular oxidation of copper. Microscopy & Microanalysis, 27, 1308-1311 (2021).                                                          

10. X. H. Sun, W. H. Zhu, D. X. Wu, C. R. Li, J. Y. Wang, Y. G. Zhu, X. B. Chen, J. A. Boscoboinik, R. Sharma, G. W. Zhou, Surface-reaction induced structural oscillations in the subsurface. Nature Communications 11, 305 (2020).

(Featured in a Nature Communications Editors’ Highlights webpage. Mentioned in news and blogs: Newswise, Phys.org, Long Room, Mining room, Device Materials Community, Bioengineer)

9.  X. H. Sun^#, W. H. Zhu^#, D. X. Wu, Z. Y. Liu, X. B. Chen, L. Yuan, G. F. Wang, R. Sharma, and G. W. Zhou, Atomic-scale mechanism of unidirectional oxide growth, Advanced Functional Materials 30, 1906504 (2020).

                  

8. X. H. Sun, D. X. Wu, W. H. Zhu, M. Li, W. C. D. Yang, S. D. House, X. B. Chen, R. Sharma, J. C. Yang, and G. W. Zhou, In-situ atomic-scale visualization of autocatalytic reduction of CuO with H₂. Microscopy & Microanalysis 26, 3048-3050 (2020).

7. L. F. Zou, P. H. Cao, Y. K. Lei, D. N. Zakharov, X. H. Sun, S. D. House, L. L. Luo, J. Li, Y. Yang, Q. Y. Yin, X. B. Chen, C. R. Li, H. L. Qin, E. Stach, J. C. Yang, G. F. Wang, and G. W. Zhou, Atomic-scale phase separation induced clustering of solute atoms. Nature Communications 11, 3934 (2020).

6. K. Liu, S. M. Zhang, D. X. Wu, L. L. Luo, X. H. Sun, X. B. Chen, D. N. Zakharov, J. C. Yang, G. F. Wang, G. W. Zhou, Effect of surface steps on composition ordering and restructuring in the subsurface of Cu(Au) solid solution. Physical Review B 103, 035401 (2020).

5. X. B. Chen, D. X. Wu, X. H. Sun, D. N. Zakharov, S. Hwang, D. Su, G. W. Zhou, In-situ atomic-resolution observations of surface passivation induced metal/oxide interfacial transformation. Microscopy & Microanalysis 26 , 3048-3050 (2020).

4. Y. S. Wang, X. H. Sun, G. J. Hao, Z. X. Guo, Y. Zhang, J. P. Lin, and J. W. Qiao, Fracture morphology and local deformation characteristics in the metallic glass matrix composite under tension. Metallurgical and Materials Transactions A 48, 1545-1550 (2017).

3. X. H. Sun, J. W. Qiao, Z. M. Jiao, Z. H. Wang, H. J. Yang and B. S. Xu, An improved tensile deformation model for in-situ dendrite/metallic glass matrix composites. Scientific Reports 5, 13964 (2015).

2. X. H. Sun, Y. S. Wang, J. Fan, H. J. Yang, S. G. Ma, Z. H. Wang and J. W. Qiao, Plasticity improvement for dendrite/metallic glass matrix composites by pre-deformation. Materials and Design 86, 266–271 (2015).

1. X. H. Sun, H. J. Yang, Y. S. Wang, S. P. Pan, Z. H. Wang, B. S. Xu and J. W. Qiao, Evolution of hardness and modulus within a cold-rolled in situ dendrite-reinforced metallic glass matrix composites. Materials Research Innovations 19, 170-174 (2015).

      

课题负责人：主持科技部重点研发课题 1项  2024-2029

项目负责人​：主持校企合作项目 1项  2024-2026

Our ETEM group has established good cooperative relationships with world-class-level research groups from the State University of New York, University of Pittsburgh, Lawrence Berkeley National Laboratory, University of California at Berkeley, Institute of Standards and Technology, Sandia National Laboratories, and Brookhaven National Laboratory. We strongly encourage our group members to engage in international cooperation and studying/visiting abroad.

   

2025/05/29   BBQ under the great wall. Send-off party for Mr. Jiacheng Wei & Birthday party for Ms. Lu Jin. 

2024/11  The first anniversary of our ETEM group

• 2025/06/11 Our new paper entitled "Oscillatory redox behavior in oxides: Cyclic surface reconstruction and reactivity modulation via the Mars–van Krevelen mechanism" is on-line in PNAS. This study visualizes a tranditional Mars–van Krevelen (MvK) mechanism proposed about 70 years ago. Our results refine the understanding of how surface–bulk interactions shape reactivity, with broad implications for catalysis and materials design.

​

• 2025/05/30  Congratulations!  Mr. Jiacheng Wei will study abroad at Aalto University at Finland to obtain Computer Science Master Degree.