Accepted articles
Instruments and methods of investigation

Belousov—Zhabotinsky reaction dynamics research by time-resolving X-ray absorption spectroscopy using adaptive X-ray optics elements

A.I. Protsenko^a, b, I.A. Eliovich^a, b, A.E. Blagov^a, c, Yu.V. Pisarevskii^a, b, A.V. Targonsky^a, b, A.V. Rogachev^a, V.A. Korzhov^a, b, S.N. Yakunin^a, M.V. Kovalchuk^a, b
^aNational Research Centre ‘Kurchatov Institute’, pl. akad. Kurchatova 1, Moscow, 123182, Russian Federation
^bFederal Scientific Research Center "Crystallography and Photonics", Russian Academy of Sciences, Leninskii prosp 59, Moscow, 119333, Russian Federation
^cFederal Scientific Research Center "Crystallography and Photonics", Russian Academy of Sciences, Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninskii prosp. 59, Moscow, 119333, Russian Federaion

The time-resolved X-ray absorption spectroscopy method was developed and implemented using adaptive bending X-ray optics (ABXO). It was applied to the in-situ study of the Belousov—Zhabotinsky self-oscillating chemical reaction. During the reaction bromine (Br) transfer between various compounds, and its absorption spectra was tracked. The bromine K-edge was serially recorded in the spectral range of 275 eV with a spectral resolution over 1.4 eV, a acquisition time was 1 s per spectrum, and a repetition rate was 0.71 Hz. The resulting spectra series make it possible to trace the Belousov—Zhabotinsky reaction kinetics and the kinetics of related chemical self-oscillations in particular.

Keywords: quick XAS, time-resolved spectroscopy, adaptive X-ray optics, bending actuator
DOI: 10.3367/UFNe.2022.12.039281
Citation: Protsenko A I, Eliovich I A, Blagov A E, Pisarevskii Yu V, Targonsky A V, Rogachev A V, Korzhov V A, Yakunin S N, Kovalchuk M V "Belousov—Zhabotinsky reaction dynamics research by time-resolving X-ray absorption spectroscopy using adaptive X-ray optics elements" Phys. Usp., accepted

Received: 31st, October 2022, revised: 30th, November 2022, accepted: 1st, December 2022

Оригинал: Проценко А И, Элиович Я А, Благов А Е, Писаревский Ю В, Таргонский А В, Рогачев А В, Коржов В А, Якунин С Н, Ковальчук М В «Исследование динамики реакции Белоусова—Жаботинского методом времяразрешающей рентгеновской спектроскопии поглощения с использованием адаптивных элементов рентгеновской оптики» УФН, принята к публикации; DOI: 10.3367/UFNr.2022.12.039281

Accepted articles

Belousov—Zhabotinsky reaction dynamics research by time-resolving X-ray absorption spectroscopy using adaptive X-ray optics elements