In Situ TEM Imaging of Solution‐Phase Chemical Reactions Using 2D‐Heterostructure Mixing Cells
AuthorsKelly, Daniel J.; orcid: 0000-0003-1318-3515
Clark, Nick; orcid: 0000-0003-3351-5628
Gebauer, Denis; orcid: 0000-0003-1612-051X
Gorbachev, Roman V.; orcid: 0000-0003-3604-5617; email: email@example.com
Haigh, Sarah J.; orcid: 0000-0001-5509-6706; email: firstname.lastname@example.org
MetadataShow full item record
AbstractAbstract: Liquid‐phase transmission electron microscopy is used to study a wide range of chemical processes, where its unique combination of spatial and temporal resolution provides countless insights into nanoscale reaction dynamics. However, achieving sub‐nanometer resolution has proved difficult due to limitations in the current liquid cell designs. Here, a novel experimental platform for in situ mixing using a specially developed 2D heterostructure‐based liquid cell is presented. The technique facilitates in situ atomic resolution imaging and elemental analysis, with mixing achieved within the immediate viewing area via controllable nanofracture of an atomically thin separation membrane. This novel technique is used to investigate the time evolution of calcium carbonate synthesis, from the earliest stages of nanodroplet precursors to crystalline calcite in a single experiment. The observations provide the first direct visual confirmation of the recently developed liquid‐liquid phase separation theory, while the technological advancements open an avenue for many other studies of early stage solution‐phase reactions of great interest for both the exploration of fundamental science and developing applications.
CitationAdvanced Materials, page 2100668
DescriptionFrom Wiley via Jisc Publications Router
History: received 2021-01-26, rev-recd 2021-03-31, pub-electronic 2021-06-09
Article version: VoR
Publication status: Published
Funder: Engineering and Physical Sciences Research Council (UK) EPSRC; Grant(s): EP/M010619/1, EP/S021531/1, EP/P009050/1
Funder: European Commission H2020 ERC Starter grant EvoluTEM; Grant(s): 715502
Funder: Henry Royce Institute for Advanced Materials
Funder: EPSRC; Id: http://dx.doi.org/10.13039/501100000266; Grant(s): EP/R00661X/1, EP/S019367/1, EP/P025021/1, EP/P025498/1
Funder: Royal Society Fellowship
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