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Title: Analysis of the CO2 Chemisorption in Li5FeO4, a New High Temperature CO2 Captor Material. Effect of the CO2 and O2 Partial Pressures

Journal Article · · Journal of Physical Chemistry. C
 [1];  [1];  [2];  [3]; ORCiD logo [1]
  1. National Autonomous Univ. of Mexico, Mexico City (Mexico). Inst. of Materials Research
  2. National Energy Technology Lab. (NETL), Pittsburgh, PA (United States)
  3. National Polytechnic Inst. (IPN), Mexico City (Mexico). Higher Education School of Chemical Engineering and Extractive Industries (ESIQIE). Dept. of Engineering in Metallurgy and Materials

Pentalithium ferrite (Li5FeO4) was tested in this paper as possible CO2 captor, both by theoretical calculations and experimental measurements. The pristine Li5FeO4 compound with orthorhombic structure was synthesized via solid-state reaction and it was structural and microstructurally characterized. Later, sample was heat-treated at temperatures from room temperature to 900 °C under different CO2 or CO2–O2 atmospheres. Li5FeO4 exhibits excellent CO2 chemisorption abilities with a capture capacity about 12.9 mmol/g, which is outstanding in comparison to other previously reported ceramic captors. This material is able to react with CO2 from 200 °C to approximately 715 °C showing a high kinetic of reaction even at CO2 partial pressure values as low as 0.2. Finally and additionally, results suggest that oxygen addition does enhance the CO2 chemisorption on Li5FeO4 at temperatures below 700 °C, although oxygen addition seems to favor the desorption process at higher temperatures.

Research Organization:
National Autonomous Univ. of Mexico, Mexico City (Mexico); National Energy Technology Lab. (NETL), Pittsburgh, PA (United States)
Sponsoring Organization:
USDOE; National Council of Science and Technology (CONACYT) (Mexico)
Grant/Contract Number:
251801; IN-101916
OSTI ID:
1399479
Report Number(s):
NETL-PUB-21003
Journal Information:
Journal of Physical Chemistry. C, Vol. 121, Issue 6; ISSN 1932-7447
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 38 works
Citation information provided by
Web of Science

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Cited By (2)

Synthesis of Li 4+x Si 1−x Fe x O 4 solid solution by dry ball milling and its highly efficient CO 2 chemisorption in a wide temperature range and low CO 2 concentrations journal January 2019
Pentalithium Ferrite (Li5FeO4) as Highly Active Material for Hydrogen Production in the Chemical Looping Partial Oxidation of Methane journal May 2019