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Sha H, Cui J, Li J, Zhang Y, Yang W, Li Y, Yu R. Ptychographic measurements of varying size and shape along zeolite channels. SCIENCE ADVANCES 2023; 9:eadf1151. [PMID: 36921047 PMCID: PMC10017048 DOI: 10.1126/sciadv.adf1151] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 02/15/2023] [Indexed: 06/12/2023]
Abstract
Sub-angstrom resolution imaging of porous materials like zeolites is important to reveal their structure-property relationships involved in ion exchange, molecule adsorption and separation, and catalysis. Using multislice electron ptychography, we successfully measured the atomic structure of zeolite at sub-angstrom lateral resolution for 100-nanometer-thick samples. Both lateral and depth deformations of the straight channels are mapped, showing the three-dimensional structural inhomogeneity and flexibility. Since most zeolites in industrial applications are usually tens to hundreds of nanometers thick, the sub-angstrom resolution imaging and accurate measurements of depth-dependent local structures with electron ptychography at low-dose condition will find wide applications in porous materials close to their industrially relevant conditions.
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Affiliation(s)
- Haozhi Sha
- School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
- MOE Key Laboratory of Advanced Materials, Tsinghua University, Beijing 100084, China
- State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, China
| | - Jizhe Cui
- School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
- MOE Key Laboratory of Advanced Materials, Tsinghua University, Beijing 100084, China
- State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, China
| | - Jialu Li
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yuxuan Zhang
- School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
- MOE Key Laboratory of Advanced Materials, Tsinghua University, Beijing 100084, China
- State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, China
| | - Wenfeng Yang
- School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
- MOE Key Laboratory of Advanced Materials, Tsinghua University, Beijing 100084, China
- State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, China
| | - Yadong Li
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Rong Yu
- School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
- MOE Key Laboratory of Advanced Materials, Tsinghua University, Beijing 100084, China
- State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, China
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