A new high temperature reactor for operando XAS: Application for the dry reforming of methane over Ni/ZrO2 catalyst

Antonio Aguilar-Tapia; Samy Ould-Chikh; Eric Lahera; Alain Prat; William Delnet; Olivier Proux; Isabelle Kieffer; Jean-Marie Basset; Kazuhiro Takanabe; Jean-Louis Hazemann

doi:10.1063/1.4998929

A new high temperature reactor for operando XAS: Application for the dry reforming of methane over Ni/ZrO₂ catalyst

Rev Sci Instrum. 2018 Mar;89(3):035109. doi: 10.1063/1.4998929.

Affiliations

¹ King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center (KCC) and Physical Sciences and Engineering Division (PSE), 4700 KAUST, Thuwal 23955-6900, Saudi Arabia.
² OSUG, UMS 832 CNRS-Université Grenoble Alpes, F-38041 Grenoble, France.
³ Institut Néel, UPR 2940 CNRS-Université Grenoble Alpes, F-38000 Grenoble, France.

PMID: 29604772
DOI: 10.1063/1.4998929

Abstract

The construction of a high-temperature reaction cell for operando X-ray absorption spectroscopy characterization is reported. A dedicated cell was designed to operate as a plug-flow reactor using powder samples requiring gas flow and thermal treatment at high temperatures. The cell was successfully used in the reaction of dry reforming of methane (DRM). We present X-ray absorption results in the fluorescence detection mode on a 0.4 wt. % Ni/ZrO₂ catalyst under realistic conditions at 750 °C, reproducing the conditions used for a conventional dynamic microreactor for the DRM reaction. The setup includes a gas distribution system that can be fully remotely operated. The reaction cell offers the possibility of transmission and fluorescence detection modes. The complete setup dedicated to the study of catalysts is permanently installed on the Collaborating Research Groups French Absorption spectroscopy beamline in Material and Environmental sciences (CRG-FAME) and French Absorption spectroscopy beamline in Material and Environmental sciences at Ultra-High Dilution (FAME-UHD) beamlines (BM30B and BM16) at the European Synchrotron Radiation Facility in Grenoble, France.