Experimental setup for probing electron-induced chemistry in liquid micro-jets

0576741 - ÚFCH JH 2024 RIV US eng J - Journal Article
Nag, Pamir - Ranković, Miloš - Schewe, Hanns Christian - Rakovský, Jozef - Sala, Leo Albert - Kočišek, Jaroslav - Fedor, Juraj
Experimental setup for probing electron-induced chemistry in liquid micro-jets.
Journal of Physics B-Atomic Molecular and Optical Physics. Roč. 56, č. 21 (2023), č. článku 215201. ISSN 0953-4075. E-ISSN 1361-6455
R&D Projects: GA ČR(CZ) GX21-26601X; GA MŠMT(CZ) LTC20067
Institutional support: RVO:61388955
Keywords : liquid micro-jet * electron-induced chemistry * electron collision
OECD category: Physical chemistry
Impact factor: 1.6, year: 2022
Method of publishing: Open access

We present an experimental setup for probing chemical changes in liquids induced by electron collisions. The setup utilizes a custom-designed electron gun that irradiates a liquid microjet with an electron beam of tunable energy. Products of the electron-induced reactions are analyzed ex-situ. The microjet system enables re-circulation of the liquid and thus multiple irradiation of the same sample. As a proof-of-principle experiment, an aqueous solution of TRIS (2-Amino-2-(hydroxymethyl)propane-1,3-diol) was irradiated by 300 eV electron beam. Optical UV–VIS analysis shows that the electron impact on the liquid surface leads to the production of OH radicals in the solution which are efficiently scavenged by TRIS.

Permanent Link: https://hdl.handle.net/11104/0346162