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Showing 1–9 of 9 results
Advanced filters: Author: Dmitri Zakharov Clear advanced filters

  • Environmental transmission electron microscopy reveals distinct atomistic pathways for the reduction of NiO to metallic nickel by CO and H2, with H2 more effective in transforming the entire bulk material.

    • Xiaobo Chen
    • Jianyu Wang
    • Guangwen Zhou
    Research
    Nature
    Volume: 644, P: 927-932

  • Dealloying usually relies on chemical dissolution of an alloy component. By contrast, the authors demonstrate an atomic-scale phase separation process that differs completely from the chemical dealloying mechanism and thus represents a significant departure from the well-known Hume-Rothery rules.

    • Lianfeng Zou
    • Penghui Cao
    • Guangwen Zhou
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-10

  • Understanding the behavior and structural transformation of metal species under reaction conditions is instrumental for developing more efficient and stable catalysts. Here, the authors reveal the evolution and stabilization of subnanometric Pt species confined in MCM-22 zeolite using in situ transmission electron microscopy.

    • Lichen Liu
    • Dmitri N. Zakharov
    • Avelino Corma
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-10

  • In situ transmission electron microscopy combined with theory modelling reveals that surface segregation in CuAu solid solution generates misfit dislocations, providing atomistic mechanisms of dislocation nucleation and dynamics at heterointerfaces.

    • Lianfeng Zou
    • Chaoming Yang
    • Guangwen Zhou
    Research
    Nature Materials
    Volume: 17, P: 56-63

  • Metal/oxide interfaces play an important role in heterogeneous catalysis and redox reactions, but their buried nature makes them difficult to study. Here, the authors use environmental transmission electron microscopy to probe the atomic-level transformations at Cu2O/Cu interfaces as they undergo redox reactions.

    • Lianfeng Zou
    • Jonathan Li
    • Guangwen Zhou
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-8

  • Understanding the atomic structure of active sites is important but challenging due to the complexity of heterogeneous systems. Here, the dynamic nature of Pt/CeO2 during the water-gas-shift reaction is studied using multiple in situ characterization tools to establish structure-performance relationships.

    • Gengnan Li
    • Dmitri N. Zakharov
    • Jorge Anibal Boscoboinik
    ResearchOpen Access
    Communications Materials
    Volume: 5, P: 1-8