Bifunctional application of lithium ferrites (Li 5 FeO 4 and LiFeO 2 ) during carbon monoxide (CO) oxidation and chemisorption processes. A catalytic, thermogravimetric and theoretical analysis

Lara-García, Hugo A.; Vera, Elizabeth; Mendoza-Nieto, J. Arturo; Gómez-García, J. Francisco; Duan, Yuhua; Pfeiffer, Heriberto

doi:10.1016/j.cej.2017.06.135

Cited by 37 publications

(21 citation statements)

References 41 publications

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“…Lithium ferrites are CO 2 captors with different behaviors, depending on their structure. For example, the Li 5 FeO 4 phase is able to chemisorb large amounts of CO 2 at temperatures between 300 and 800 °C [ 57 ]. The reactions that occur are: 2LiFeO 2 + CO 2 → Li 2 CO 3 + Fe 2 O 3 Li 5 FeO 4 + 2CO 2 → 2Li 2 CO 3 + LiFeO 2 …”

Section: Resultsmentioning

confidence: 99%

“…The high-resolution spectra of Fe 2p reveal a spinel structure with a typical peak at 717.4 eV. The peaks for Fe 3+ at 710.8 eV corresponding to 2p3/2 transition and Fe 2+ at 709.3 eV and 720 eV associated with 2p3/2 and 2p1/2 transitions could be identified in all iron spectra [ 55 , 56 , 57 , 58 ]. Additionally, since the lithium ferrite is prone to react with the chemosorbed CO 2 , the intensity of Fe 3+ and Fe 2+ peaks is more intense [ 55 , 56 ].…”

Section: Resultsmentioning

confidence: 99%

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Nanostructured LiFe5O8 by a Biogenic Method for Applications from Electronics to Medicine

et al. 2021

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The physical properties of the cubic and ferrimagnetic spinel ferrite LiFe5O8 has made it an attractive material for electronic and medical applications. In this work, LiFe5O8 nanosized crystallites were synthesized by a novel and eco-friendly sol-gel process, by using powder coconut water as a mediated reaction medium. The dried powders were heat-treated (HT) at temperatures between 400 and 1000 °C, and their structure, morphology, electrical and magnetic characteristics, cytotoxicity, and magnetic hyperthermia assays were performed. The heat treatment of the LiFe5O8 powder tunes the crystallite sizes between 50 nm and 200 nm. When increasing the temperature of the HT, secondary phases start to form. The dielectric analysis revealed, at 300 K and 10 kHz, an increase of ε′ (≈10 up to ≈14) with a tanδ almost constant (≈0.3) with the increase of the HT temperature. The cytotoxicity results reveal, for concentrations below 2.5 mg/mL, that all samples have a non-cytotoxicity property. The sample heat-treated at 1000 °C, which revealed hysteresis and magnetic saturation of 73 emu g−1 at 300 K, showed a heating profile adequate for magnetic hyperthermia applications, showing the potential for biomedical applications.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Nanostructured LiFe5O8 by a Biogenic Method for Applications from Electronics to Medicine

et al. 2021

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“…31,[52][53][54][55][56][57][58] In addition, new reports on the synthesis of Li4SiO4 from highly porous precursors such as metal organic frameworks (MOFs) and zeolites for CO2 capture were also reviewed. 59…”

Section: Influence Of Synthesis Methods For Pure Li4sio4mentioning

confidence: 99%

“…This is a result of MOF and zeolite's possession of highly ordered nano-or meso-pores and channels. 59,77 Recently, Moon et al 77 demonstrated that coral-like Li4SiO4 samples can be synthesized from a MOF precursor (Figure 6(a) gas. After 15 cycles, the CO2 uptake of Li-SBA15-4 only slightly decreased by 1.0 wt%, suggesting a very excellent cycling stability.…”

Section: Synthesis Of Li4sio4 From Mofs or Zeolitesmentioning

confidence: 99%

“…In order to increase the purity of H2 and decrease the CO concentration of reformed fuels, catalytic oxidation coupled with subsequent CO2 sorption has been proposed. 202,203 Recently, lithium containing ceramics such as Li2ZrO3, 204 Li2CuO2, 205 Li5FeO4, and LiFeO2 59 have been studied as bi-functional materials, catalysts for CO oxidation and sorbent for the subsequent produced CO2. In the following section, the progress of the use of lithium containing ceramics in the CO oxidation coupled with subsequent CO2 chemisorption process will be reviewed.…”

Section: Co Oxidation Coupled With Subsequent Co2 Chemisorption Processmentioning

confidence: 99%

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Recent advances in lithium containing ceramic based sorbents for high-temperature CO₂ capture

et al. 2019

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Structural and magnetic properties of antifluorite‐type Li_5+xFe_1−xCo_xO₄

Thøgersen,

Fjellvåg,

Fjellvåg

et al. 2023

Zeitschrift anorg allge chemie

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We report on the structural and magnetic properties of Li5+xFe1‐xCoxO4 (0 ≤ x ≤ 1). The system assumes two distinct crystal structures at room temperature (α and β), and shows a transition in preference from α to β between x = 0.18 and x = 0.25. This tendency is supported by DFT‐calculations. Upon heating, Li5FeO4 undergoes a reconstructive transition from α → β at ∼1060 K, while Li6CoO4 shows an order‐disorder transition from β → ε at ∼885 K, where ε is a cubic cation‐disordered antifluorite structure. Li5.50Fe0.50Co0.50O4 is stabilised towards the ordered β‐phase until at least 1170 K. XANES‐measurements confirm that the oxidation states of Fe and Co remain unchanged throughout the series with charge compensation from additional Li+ on increasing x. Magnetic measurements show onset of low‐temperature antiferromagnetic ordering around 3 K to 12 K. The magnetic structure of Li5FeO4 is described on the basis of powder neutron diffraction at 1.5 K, while the magnetic structures of Li5.50Fe0.50Co0.50O4 and Li6CoO4 are found to be slightly incommensurate below the ordering temperature.

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Bifunctional application of lithium ferrites (Li 5 FeO 4 and LiFeO 2 ) during carbon monoxide (CO) oxidation and chemisorption processes. A catalytic, thermogravimetric and theoretical analysis

Cited by 37 publications

References 41 publications

Nanostructured LiFe5O8 by a Biogenic Method for Applications from Electronics to Medicine

Nanostructured LiFe5O8 by a Biogenic Method for Applications from Electronics to Medicine

Recent advances in lithium containing ceramic based sorbents for high-temperature CO₂ capture

Structural and magnetic properties of antifluorite‐type Li_5+xFe_1−xCo_xO₄

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Bifunctional application of lithium ferrites (Li 5 FeO 4 and LiFeO 2 ) during carbon monoxide (CO) oxidation and chemisorption processes. A catalytic, thermogravimetric and theoretical analysis

Cited by 37 publications

References 41 publications

Nanostructured LiFe5O8 by a Biogenic Method for Applications from Electronics to Medicine

Nanostructured LiFe5O8 by a Biogenic Method for Applications from Electronics to Medicine

Recent advances in lithium containing ceramic based sorbents for high-temperature CO2 capture

Structural and magnetic properties of antifluorite‐type Li5+xFe1−xCoxO4

Contact Info

Product

Resources

About

Recent advances in lithium containing ceramic based sorbents for high-temperature CO₂ capture

Structural and magnetic properties of antifluorite‐type Li_5+xFe_1−xCo_xO₄