A universal nano‐capillary based method of catalyst immobilization for liquid‐cell transmission electron microscopy
- A universal nano‐capillary based method for sample deposition on the silicon nitride membrane of liquid‐cell transmission electron microscopy (LCTEM) chips is demonstrated. It is applicable to all substances which can be dispersed in a solvent and are suitable for drop casting, including catalysts, biological samples, and polymers. Most importantly, this method overcomes limitations concerning sample immobilization due to the fragility of the ultra‐thin silicon nitride membrane required for electron transmission. Thus, a straightforward way is presented to widen the research area of LCTEM to encompass any sample which can be externally deposited beforehand. Using this method, Ni\(_x\)B nanoparticles are deposited on the μm‐scale working electrode of the LCTEM chip and in situ observation of single catalyst particles during ethanol oxidation is for the first time successfully monitored by means of TEM movies.
| Author: | Tsvetan TarnevORCiDGND, Steffen CychyGND, Corina AndronescuORCiDGND, Martin MuhlerORCiDGND, Wolfgang SchuhmannORCiDGND, Yen-Ting ChenGND |
|---|---|
| URN: | urn:nbn:de:hbz:294-80771 |
| DOI: | https://doi.org/10.1002/anie.201916419 |
| Parent Title (German): | Angewandte Chemie International Edition |
| Publisher: | Wiley |
| Place of publication: | Weinheim |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2021/05/12 |
| Date of first Publication: | 2020/01/20 |
| Publishing Institution: | Ruhr-Universität Bochum, Universitätsbibliothek |
| Tag: | electrocatalysis; ethanol oxidation; liquid-cell TEM; nano electrochemistry; nickel boride |
| Volume: | 59 |
| Issue: | 14 |
| First Page: | 5586 |
| Last Page: | 5590 |
| Note: | Dieser Beitrag ist auf Grund des DEAL-Wiley-Vertrages frei zugänglich. |
| Institutes/Facilities: | Lehrstuhl für Analytische Chemie - Elektroanalytik & Sensorik |
| Dewey Decimal Classification: | Naturwissenschaften und Mathematik / Chemie, Kristallographie, Mineralogie |
| open_access (DINI-Set): | open_access |
| faculties: | Fakultät für Chemie und Biochemie |
| Licence (English): |  Creative Commons - CC BY 4.0 - Attribution 4.0 International |
