4.6 Review

Recent Progress on Revealing 3D Structure of Electrocatalysts Using Advanced 3D Electron Tomography: A Mini Review

期刊

FRONTIERS IN CHEMISTRY
卷 10, 期 -, 页码 -

出版社

FRONTIERS MEDIA SA
DOI: 10.3389/fchem.2022.872117

关键词

3D electron tomography; transmission electron microscopy; electrocatalysis; nanostructures; 3D structures

资金

  1. National Natural Science Foundation of China [12074017]
  2. Beijing Municipal High Level Innovative Team Building Program [IDHT20190503]
  3. National Natural Science Fund for Innovative Research Groups of China [51621003]

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This mini-review summarizes recent progress on revealing 3D structures of electrocatalysts using 3D electron tomography. It discusses the information that can be revealed at nanoscale and atomic scale, and explores the application of this technique in durability investigation and post-treatment of electrocatalysts.
Electrocatalysis plays a key role in clean energy innovation. In order to design more efficient, durable and selective electrocatalysts, a thorough understanding of the unique link between 3D structures and properties is essential yet challenging. Advanced 3D electron tomography offers an effective approach to reveal 3D structures by transmission electron microscopy. This mini-review summarizes recent progress on revealing 3D structures of electrocatalysts using 3D electron tomography. 3D electron tomography at nanoscale and atomic scale are discussed, respectively, where morphology, composition, porous structure, surface crystallography and atomic distribution can be revealed and correlated to the performance of electrocatalysts. (Quasi) in-situ 3D electron tomography is further discussed with particular focus on its impact on electrocatalysts' durability investigation and post-treatment. Finally, perspectives on future developments of 3D electron tomography for eletrocatalysis is discussed.

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