Operando Micro-Raman Spectroscopy: Intermediate Temperature MEIC Air-Separation Membranes

Abstract

This final report describes work towards development of operando Raman spectroscopic methods for characterization of intermediate temperature (500-650C) mixed ionic-electronic conducting (MIEC) oxide membranes for air separation. The proposal aims were to (1) develop procedures for preparation of MIECs for oxygen separation, and (2) to develop operando Raman spectroscopic methodologies applicable to hot MIEC membranes beneath a CaF2 window. A consideration related to Raman micro-spectroscopy of hot surfaces is the distance required between the microscope objective and the hot oxide surface. In addition to this, the in-house procedure for making mixed fluorite-perovskite disks was established.

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Document Details

Document Type
Technical Report
Publication Date
Dec 27, 2018
Accession Number
AD1099678

Entities

People

  • Eugene S Smotkin

Organizations

  • Northeastern University

Tags

DTIC Thesaurus Topics

  • Carbon Monoxide
  • Cells
  • Chemistry
  • Detectors
  • Dielectric Gases
  • Electron Density
  • Electrons
  • Elements
  • Fuel Cells
  • High Temperature
  • Membranes
  • Oxides
  • Raman Spectra
  • Raman Spectroscopy
  • Spectra
  • Spectroscopy
  • Students

Fields of Study

  • Materials science

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Nanoscale Plasmonic Nanotechnology

Technology Areas

  • Microelectronics