Electrochemical studies of perovskite cathode material for direct natural gas fuel cell

Javed, Muhammad Sufyan; Raza, Rizwan; Ahsan, Zishan; Rafique, Muhammad; Shamaila, S.; Shaukat, Saleem Farooq; Shaheen, Nusrat; Khalid, Maryam; Chengou, Hu; Zhu, Bin

doi:10.1016/j.ijhydene.2015.11.144

Cited by 27 publications

(11 citation statements)

References 36 publications

(16 reference statements)

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“…The two semicircular diameters are dened by transfer resistance and electric double layer capacitance, separately. 33,34 Due to the deposition and dissolution of the corrosion products, bring the inductive loop at lower frequency, these diffusion process called "diffusion admittance". 35 This phenomenon indicates that the change in capacitance on rough surface electrode and its equivalent circuit can represents in CPE.…”

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

The effects of NaF concentration on electrochemical and corrosion behavior of AZ31B magnesium alloy in a composite electrolyte

Yang

Javed

et al. 2017

RSC Adv.

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Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

The effects of NaF concentration on electrochemical and corrosion behavior of AZ31B magnesium alloy in a composite electrolyte

Yang

Javed

et al. 2017

RSC Adv.

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“…However, its high tendency for explosion and difficulty in handling, storage, and transportation hinder the commercialization of SOFCs . Natural gas is of great interest, due to its wide availability, low cost, higher energy density, and well‐developed distribution infrastructure compared to other fuels, such as hydrocarbon, biogas, methanol, and ammonia , . Recent discoveries of abundant reserves of shale gas also greatly increase its appeal, especially regarding the costs.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Different Perovskite Cathodes in Solid Oxide Fuel Cells

Shen

2018

Fuel Cells

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This study compares the electrochemical performance of three perovskite cathode materials, La0.6Sr0.4Co0.2Fe0.8O3 (LSCF), Ba0.5Sr0.5Co0.2Fe0.8O3 (BSCF), and Sm0.5Sr0.5Co0.2Fe0.8O3 (SSCF), at different operating temperatures, in order to provide optimal operating condition and performance for different solid oxide fuel cells. Among these three cathodes, BSCF has the highest power density of 39 mW cm−2 at 600 °C, 88 mW cm−2 at 650 °C, and 168 mW cm−2 at 700 °C; LSCF has the highest power density of 263 mW cm−2 at 750 °C and 456 mW cm−2 at 800 °C. The cathode overpotentials have the same trend as the power densities. Activation energies for the total cathode area specific resistance (ASR) are calculated to be 0.44 eV, 0.38 eV, and 0.52 eV for the LSCF, BSCF, and SSCF cathodes, respectively. Stability testing of 100 h shows that the open circuit voltages of the LSCF and BSCF cathodes drop 16.1% and 22.9% at 800 °C, respectively, as well as 15.3% and 11.3% at 600 °C, respectively, indicating that the LSCF cathode is more stable at 800 °C while the BSCF cathode is more stable at 600 °C. This work should provide important guidance for the solid oxide fuel cell designs and properties.

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“…The difference between total and ohmic resistance calculated as polarization resistance ( R p ). The big and small semicircles at high and low frequencies are the indication of ionic and electronic behavior of the sample at this two frequency regions .…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Electrochemical Studies of Novel Cobalt Free (Nd_0.9La_0.1)_1.6Sr_0.4 Ni_0.75Cu_0.25O_3.8 (NLSNC4) Cathode Material for IT‐SOFCs

et al. 2019

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A novel cathode material of (Nd0.9La0.1)1.6Sr0.4Ni0.75Cu0.25O3.8 (NLSNC4), is synthesized by solid state reaction and is further investigated in combination with samarium doped ceria (SDC) as composite cathodes including 0, 10, 30, 50, and 70 of SDC electrolyte phase. The X‐ray diffraction analysis showed that NLSNC4 was produced in pure phase and was chemically compatible with SDC electrolyte. Electrical conductivities of single phase and composite cathode materials along with their electrochemical performances on SDC electrolytes in symmetric cells were measured by DC four‐probe method and electrochemical impedance spectroscopy (EIS), respectively. Results indicated that the maximum electrical conductivity is 135.56 S cm−1 at 350 °C, measured for single phase NLSNC4, sintered at 1,300 °C. Polarization resistance of pure NLSNC4 cathode was 2.71 Ω cm2 at 800 °C, and NLSNC4‐x wt.% SDC composite cathodes displayed Rp value of 0.35, 0.14, 0.12, and 0.32 Ω cm2 at 800 °C, for x = 10, 30, 50, and 70, respectively.

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Electrochemical studies of perovskite cathode material for direct natural gas fuel cell

Cited by 27 publications

References 36 publications

The effects of NaF concentration on electrochemical and corrosion behavior of AZ31B magnesium alloy in a composite electrolyte

The effects of NaF concentration on electrochemical and corrosion behavior of AZ31B magnesium alloy in a composite electrolyte

Comparison of Different Perovskite Cathodes in Solid Oxide Fuel Cells

Synthesis and Electrochemical Studies of Novel Cobalt Free (Nd_0.9La_0.1)_1.6Sr_0.4 Ni_0.75Cu_0.25O_3.8 (NLSNC4) Cathode Material for IT‐SOFCs

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Electrochemical studies of perovskite cathode material for direct natural gas fuel cell

Cited by 27 publications

References 36 publications

The effects of NaF concentration on electrochemical and corrosion behavior of AZ31B magnesium alloy in a composite electrolyte

The effects of NaF concentration on electrochemical and corrosion behavior of AZ31B magnesium alloy in a composite electrolyte

Comparison of Different Perovskite Cathodes in Solid Oxide Fuel Cells

Synthesis and Electrochemical Studies of Novel Cobalt Free (Nd0.9La0.1)1.6Sr0.4 Ni0.75Cu0.25O3.8 (NLSNC4) Cathode Material for IT‐SOFCs

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Product

Resources

About

Synthesis and Electrochemical Studies of Novel Cobalt Free (Nd_0.9La_0.1)_1.6Sr_0.4 Ni_0.75Cu_0.25O_3.8 (NLSNC4) Cathode Material for IT‐SOFCs