Ce(OH)<sub>2</sub>Cl and lanthanide-substituted variants as precursors to redox-active CeO<sub>2</sub>materials

Dunn, Alexander J A; Annis, James W.; Fisher, Janet M.; Thompsett, David; Walton, Richard I.

doi:10.1039/d0dt03435e

Cited by 2 publications

(2 citation statements)

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“…The TPR peak (Figure c) ranging from 400 to 600 °C gradually shifted to the higher temperature and decreased in intensity with Pr 4+ doping as a result of the reduction of Mn 4+ or Mn 3+ to accommodate the charge neutrality in the as-prepared sample. The unique peak of Pr50STM at 640 °C could be attributed to the transformation from Pr 4+ to Pr 3+ …”

Section: Resultsmentioning

confidence: 99%

“…The unique peak of Pr50STM at 640 °C could be attributed to the transformation from Pr 4+ to Pr 3+ . 50 The TEC (Figure 2d) of Pr50STM was 9.38 ppm K −1 in air, which was lower than that of Pr30STM (9.82 ppm K −1 ). The TEC of Pr50STM (8.10 ppm K −1 ) in 5% H 2 was higher than that of Pr30STM (4.98 ppm K −1 ) whose irregular expansion of Pr30STM could be related to decomposition, and this was consistent with the complete fracture of Pr10STM during heating in 5% H 2 .…”

Section: Materials Characterizationmentioning

confidence: 99%

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Pr-Doped SrTi_0.5Mn_0.5O_3−δ as an Electrode Material for a Quasi-Symmetrical Solid Oxide Fuel Cell Using Methane and Propane Fuel

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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The use of identical electrodes for both the cathode and the anode in a symmetrical solid oxide fuel cell (SSOFC) can simplify the preparation process and increase the durability of the cell, but it is also demanding on the properties of the electrode including stability, electric conductivity, and electrocatalysis. The doping of variable-valence Mn 4+/3+2+ on the B site of stable SrTiO 3 is explored in this study as both the cathode and the anode for an SSOFC. Though the limit of Mn doping in SrTiO 3 is generally low, the additional Pr 3+/4+ donor on the Sr site of SrTi 0.5 Mn 0.5 O 3 was found to enhance the structure stability, electric conductivity, and electrocatalysis. The cell with Pr 0.5 Sr 0.5 Ti 0.5 Mn 0.5 O 3 electrodes excels under H 2 , propane, or CH 4 /H 2 fuel, providing the cocatalyst was infiltrated on the anode side. The polarization resistance value of Pr 0.5 Sr 0.5 Ti 0.5 Mn 0.5 O 3 was 0.27 Ω•cm 2 as the cathode and 0.33 Ω•cm 2 for the SSOFC using H 2 fuel. The performance under CH 4 / H 2 fuel can be boosted to above 0.9 W cm −2 if Ni/ceria was loaded onto the anode to enhance the methane reforming. This work contributes to a perovskite anode with high Mn doping in SrTiO 3 for application in SSOFC for natural gas with renewable H 2 injection.

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Section: Resultsmentioning

confidence: 99%

Section: Materials Characterizationmentioning

confidence: 99%

Pr-Doped SrTi_0.5Mn_0.5O_3−δ as an Electrode Material for a Quasi-Symmetrical Solid Oxide Fuel Cell Using Methane and Propane Fuel

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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A synthetic method for lanthanum hydroxychloride suitable for industrialization and its thermal decomposition properties

Tian,

Guo,

Pei

et al. 2024

RSC Adv.

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Ce(OH)₂Cl and lanthanide-substituted variants as precursors to redox-active CeO₂materials

Abstract: The cerium(III) hydroxide chloride Ce(OH)2Cl crystallises directly as a polycrystalline powder from a solution of CeCl3·7H2O in poly(ethylene) glycol (Mn = 400) heated at 240 oC and is found to...

Cited by 2 publications

References 79 publications

Pr-Doped SrTi_0.5Mn_0.5O_3−δ as an Electrode Material for a Quasi-Symmetrical Solid Oxide Fuel Cell Using Methane and Propane Fuel

Pr-Doped SrTi_0.5Mn_0.5O_3−δ as an Electrode Material for a Quasi-Symmetrical Solid Oxide Fuel Cell Using Methane and Propane Fuel

A synthetic method for lanthanum hydroxychloride suitable for industrialization and its thermal decomposition properties

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Ce(OH)2Cl and lanthanide-substituted variants as precursors to redox-active CeO2materials

Abstract: The cerium(III) hydroxide chloride Ce(OH)2Cl crystallises directly as a polycrystalline powder from a solution of CeCl3·7H2O in poly(ethylene) glycol (Mn = 400) heated at 240 oC and is found to...

Cited by 2 publications

References 79 publications

Pr-Doped SrTi0.5Mn0.5O3−δ as an Electrode Material for a Quasi-Symmetrical Solid Oxide Fuel Cell Using Methane and Propane Fuel

Pr-Doped SrTi0.5Mn0.5O3−δ as an Electrode Material for a Quasi-Symmetrical Solid Oxide Fuel Cell Using Methane and Propane Fuel

A synthetic method for lanthanum hydroxychloride suitable for industrialization and its thermal decomposition properties

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Product

Resources

About

Ce(OH)₂Cl and lanthanide-substituted variants as precursors to redox-active CeO₂materials

Pr-Doped SrTi_0.5Mn_0.5O_3−δ as an Electrode Material for a Quasi-Symmetrical Solid Oxide Fuel Cell Using Methane and Propane Fuel

Pr-Doped SrTi_0.5Mn_0.5O_3−δ as an Electrode Material for a Quasi-Symmetrical Solid Oxide Fuel Cell Using Methane and Propane Fuel