Stability of LaNiO3 gas diffusion oxygen electrodes

Silva, R. A.; Soares, C. O.; Carvalho, Maria Graça; Rangel, C. M.; Pereira, M. I. da Silva

doi:10.1007/s10008-013-2330-x

Cited by 9 publications

(4 citation statements)

References 32 publications

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“…Since the surface is seen to change over time, results from the first set of measurements (test1) are chosen as more representative of the intrinsic activity of the materials. The activity of LN varies substantially when looking into the literature; the Tafel slopes reported vary from 43-122 mV, 6,[28][29][30][31] in 0.1/1.0 M KOH. The variation is likely a result of several factors.…”

Section: Resultsmentioning

confidence: 99%

Oxygen Evolution Activity and Chemical Stability of Ni and Fe Based Perovskites in Alkaline Media

Adolphsen

Sudireddy

Gil

et al. 2018

J. Electrochem. Soc.

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toward the oxygen evolution reaction (OER) was measured in 1M KOH at room temperature. All materials showed comparable OER activity with Tafel slopes in the range 56-98 mV/dec. The overvoltage at 10 mA • cm −2 , measured on a well-defined geometric surface area, was in the range 0.38-0.45 V. The best performing materials among the ones investigated were LaNiO 3 (multiphase) and La 2 Ni 0.9 Fe 0.1 O 4 . The chemical stability of the stoichiometric materials was also assessed in 31wt% and 45 wt% KOH respectively at 100 • C and 220 • C. All materials were partially decomposed after 1 week of exposure at 220 • C. After 1 week of exposure at 100 • C LaNiO 3 had formed secondary phases whereas LaNi 0.6 Fe 0.4 O 3 and La 2 Ni 0.9 Fe 0.1 O 4 showed only traces of secondary phase. The main secondary phases were in all cases La(OH) 3 , NiO, Ni(OH) 2 and Fe 2 O 3 . These observations indicate that the investigated oxygen electrode materials are not suitable for operation in alkaline electrolysis cells above 100 • C.

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Section: Resultsmentioning

confidence: 99%

Oxygen Evolution Activity and Chemical Stability of Ni and Fe Based Perovskites in Alkaline Media

Adolphsen

Sudireddy

Gil

et al. 2018

J. Electrochem. Soc.

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“…Furthermore, an additional disadvantage of carbon in nonaqueous LABs is that it is reactive with Li 2 O 2 and produces an interfacial layer of Li 2 CO 3 between carbon and Li 2 O 2 on the charge (oxidation) cycle. This reaction is believed to be responsible for the large overpotential/low efficiency and drives the charging voltage to higher than 4 V. , To overcome this drawback and to provide a low-cost and oxidation-resistant support/substrate, electronically conductive substitutes, including mesoporous silica, titanium oxide, boron carbide, Ni foam/mesh, titanium metal sheets, and stainless steel, have been explored. − …”

Section: Summaries and Research Directionsmentioning

confidence: 99%

Nonstoichiometric Oxides as Low-Cost and Highly-Efficient Oxygen Reduction/Evolution Catalysts for Low-Temperature Electrochemical Devices

et al. 2015

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Introduction 9870 1.1. Background 9870 1.2. Oxygen Catalysts 9871 1.3. Nonstoichiometric Oxides 9872 2. ABO 3-δ Perovskite-Type Catalysts 9873 2.1. General Introduction 9873 2.2. Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3−δ Oxygen Catalysts 9873 2.3. Effects of Cations 9876 2.3.1. Effects of A-Site Cations 9876 2.3.2. Effects of B-Site Cations 9877 2.3.3. Effects of A′-Site Cations 9878 2.3.4. Effects of B′-Site Cations 9879 2.4. Extrinsic Strategies for Enhancing Performance and Stability 9880 2.4.1. Controlling Phase Structure and Surface Activities 9880 2.4.2. Nanostructured Materials 9881 2.4.3. Crystallographic Orientations 9884 2.4.4. Amorphous Phases 9886 2.4.5. Composites 9886 2.5. Summary 9886 3. Layered-Perovskite-Type Catalysts 9887 3.1. Ruddlesden−Popper Phases 9887 3.2. Double Perovskites 9887 3.3. Summary 9889 4. Pyrochlore-Type Catalysts 9890 4.1. Structure and Properties 9890 4.2. Summary 9891 5. Other Typical Nonstoichiometric Oxides 9891 5.1. MnO x Oxygen Catalysts 9891 5.2. Ceria-Related Oxygen Catalysts 9892 5.3. NiO x -Based Oxygen Catalysts 9893 5.4. Delithiated LiCoO 2 −Related Oxygen Catalysts 9894 5.5. Summary 9894 6. Benchmarking Oxygen Catalysts 9894 6.1. Overview of the State-of-the-Art Oxygen Catalysts 9894 6.2. ORR/OER Bifunctional Oxygen Catalysts 9895 7. Design Principles 9897 7.1. Descriptors from Molecular Orbital Theory 9897 7.2. Descriptors from DFT Calculations 9899 8. Mechanistic Understanding 9900 9. Summaries and Research Directions 9904 9.1. Perovskite-Type Oxygen Catalysts 9904 9.2. Pyrochlore-Type Oxygen Catalysts 9904 9.3. MnO x , CeO x , and NiO x Related Oxygen Catalysts 9904 9.4. Catalyst Support 9904 9.5. Electrode Architectures 9905 9.6. Solid Electrolytes/Separators/Protectors 9905 9.7. System 9905 9.8. Advanced Characterizations 9905 9.9. Transferring Current Materials 9905 9.10.

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“…1 From this ranking it was found that the LaNiO 3 phase possessed a remarkably high conductivity compared to the other mixed oxides phases. LaNiO 3 has additionally also been recognized as one of the most promising OER catalysts [50]. Based on these findings it was decided to incorporate this well known perovskite in the electrodes.…”

Section: Structural Characterizationmentioning

confidence: 99%

Manufacturing of a LaNiO3 composite electrode for oxygen evolution in commercial alkaline water electrolysis

Egelund

Caspersen

Nikiforov

et al. 2016

International Journal of Hydrogen Energy

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Stability of LaNiO3 gas diffusion oxygen electrodes

Cited by 9 publications

References 32 publications

Oxygen Evolution Activity and Chemical Stability of Ni and Fe Based Perovskites in Alkaline Media

Oxygen Evolution Activity and Chemical Stability of Ni and Fe Based Perovskites in Alkaline Media

Nonstoichiometric Oxides as Low-Cost and Highly-Efficient Oxygen Reduction/Evolution Catalysts for Low-Temperature Electrochemical Devices

Manufacturing of a LaNiO3 composite electrode for oxygen evolution in commercial alkaline water electrolysis

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