Recent progress in the use of in situ X-ray methods for the study of heterogeneous catalysts in packed-bed capillary reactors
type: Dataset
contact point: Organization
  fn: CCSD
keyword: infoeu-reposemanticsarticle
keyword: journal-articles
keyword: packed-bed-reactors-and-synchrotron-radiation
keyword: exafs
keyword: in-situ
keyword: heterogeneous-catalysis
keyword: diffraction
keyword: chimmatechemical-sciencesmaterial-chemistry
landing page: 0920-5861
description: Synchrotron-based X-ray techniques, such as Diffraction and Absorption Spectroscopy (XAS), can be readily employed to study catalysts in action, thereby offering great potential for revealing the mechanism and behaviour of catalytic solids both during preparation and reaction. The continued advancement of X-ray generation and collection mean that it is now possible to obtain high quality data from catalysts under reaction conditions with second/sub-second time resolution. In this paper, we describe in detail a specific setup which can be used to obtain transmission in situ data. It is able to mimic industrial preparation/reaction environments and has been developed to such an extent that such measurements are now routine. To illustrate its applicability, we present time-resolved diffraction data obtained from an iron molybdate-based catalyst under pseudo industrial operating conditions revealing its bulk solid-state chemistry and stability, and further show how the catalyst behaviour changes as a function of the Fe/Mo ratio. We also illustrate the versatility of this setup in obtaining data using simultaneous multiple techniques (including non-X-ray-based methods, e.g. UV-vis) from an iron molybdate catalyst under methanol/air-flow. We conclude with a brief outlook towards the future, in which we identify new possibilities for studying catalysts in action which could yield insight into their preparation and behaviour.
issued: 2026-05-05T10:49:39.967870
language: en
modified: 2026-05-05T10:49:39.967874

Recent progress in the use of in situ X-ray methods for the study of heterogeneous catalysts in packed-bed capillary reactors
type: Distribution
access URL: https://hal.science/hal-00993266
format: HTML
issued: 2026-05-05T10:49:39.969236
modified: 2026-05-05T10:49:39.955859

test_moissonnage_selune
type: Agent