Promising electrochemical study of titanate based anodes in direct carbon fuel cell using walnut and almond shells biochar fuel

Ali, Amjad; Raza, Rizwan; Shakir, Muhammad Imran; Iftikhar, Asia; Alvi, Farah; Ullah, Muhammad Kaleem; Hamid, Abdul; Kim, Jung-Sik

doi:10.1016/j.jpowsour.2019.05.085

Cited by 28 publications

(27 citation statements)

References 55 publications

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“…The obtained gel was burnt and turned to ash, which was dried in an oven at 120 °C for 12 h. The final powder was fired at 1000 °C for 6 h. The sintered powder was ground to obtain the anode material. The preparation step of the anode is shown in our previously published work . Doped ceria–binary carbonate SDC-(Li-Na)CO 3 electrolyte (LN-SDC) was synthesized by the coprecipitation technique in a molar ratio of 1:2.…”

Section: Methodsmentioning

confidence: 99%

“…The molten hydroxide electrolyte shows better ionic conductivity and catalytic reactivity for carbon oxidation and reduces the operating temperature of DCFCs . Cooper and his coworkers developed a DCFC anode using molten carbonate electrolytes mixed with carbon and achieved a cell performance of 100 mW cm –2 at 800 °C. , Ali and his group prepared DCFCs using the doped ceria–binary carbonate SDC-(Li-Na)CO 3 (LN-SDC) electrolyte, La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3‑δ (LSCF) cathode, and La 0.4 Sr 0.6 Fe 0.09 Ti 0.91 O 3-δ (LSFT), La 0.4 Sr 0.6 Ni 0.09 Ti 0.91 O 3-δ (LSNT), La 0.4 Sr 0.6 Co 0.09 Ti 0.91 O 3-δ (LSCT), and La 0.4 Sr 0.6 Zn 0.09 Ti 0.91 O 3-δ (LSZT) anodes and observed power densities of 78, 54, 51, and 28 mW cm −2 , respectively, using sub-bituminous fuel at 700 °C . Ding et al studied the electrode and anode materials for DCFCs, which are highly resistant and stable for hydrocarbon fuel. , The electrical conductivity and cell performance of the materials increase with the addition of Cu content .…”

Section: Introductionmentioning

confidence: 99%

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Electrochemical Analysis of a Titanate-Based Anode for Direct Carbon Fuel Cells

Ali

Raza

Khalil

et al. 2020

ACS Appl. Energy Mater.

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The grand challenge in the commercialization of direct carbon fuel cell (DCFC) technology is the development of a cost-effective and thermally stable material, which facilitates fast ionic and electronic conduction and exhibits good resistance for carbon deposition at electrodes. Titanate-based materials have high ionic and electronic conductivity at higher temperature. Perovskite anodes based on titanate and transition metals show a good catalytic activity for hydrocarbon fuels. Therefore, perovskite materials, based on lanthanum strontium and copper titanate La0.4Sr0.6Cu x Ti1–x O3‑δ (x = 0.02, 0.04, 0.06, and 0.08), were synthesized using the sol–gel method and examined as anodes for DCFCs. The powders were analyzed using various characterization techniques. X-ray diffraction shows that the material has a cubic perovskite structure. The conductivity of the synthesized powder LS8CT was found to be 4.21 Scm–1 at 600 °C. The button cell developed using LS8CT exhibits a performance of 61mWcm–2 at 600 °C. The computational study using the Wien2k code has been performed, which shows that the Fermi level is at nonzero density of states (DOS) and reveals that the compound is metallic in nature. Therefore, no forbidden region occurs between the maxima of the valence band and minima of the conduction band. Results of DOS confirm the metallic nature of the compound. On the basis of theoretical and experimental studies, it can be depicted that substitution of Cu in La0.3Sr0.7TiO3 increases the conductivity. Therefore, a La0.4Sr0.6Cu x Ti1–x O3‑δ perovskite material can be used as an anode for DCFCs.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electrochemical Analysis of a Titanate-Based Anode for Direct Carbon Fuel Cells

Ali

Raza

Khalil

et al. 2020

ACS Appl. Energy Mater.

Self Cite

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“…In the same field, Ali et al [261] used titanate-based anodes in a direct carbon fuel cell by using biochar from pyrolyzed walnut and almond shells as fuel. The authors claimed a generated power of up to 78 mW/cm −2 .…”

Section: Biochar Used For Fuel Cell Productionmentioning

confidence: 99%

A Review of Non-Soil Biochar Applications

et al. 2020

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Biochar is the solid residue that is recovered after the thermal cracking of biomasses in an oxygen-free atmosphere. Biochar has been used for many years as a soil amendment and in general soil applications. Nonetheless, biochar is far more than a mere soil amendment. In this review, we report all the non-soil applications of biochar including environmental remediation, energy storage, composites, and catalyst production. We provide a general overview of the recent uses of biochar in material science, thus presenting this cheap and waste-derived material as a high value-added and carbonaceous source.

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“…Therefore, it would be economically beneficial to utilize biochar particles to develop innovative carbon nanofibrous felt for high-value applications. Because of biochar’s carbon-rich feature, it is particularly promising for use in energy storage and conversion applications [ 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ]. However, most of the reported biochar particles were in powder form rather than being incorporated in the matrix, which limits its application as a binder-free electrode.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Electrospinning and Electrospraying for the Preparation of a Precursor Membrane Containing Hydrothermally Generated Biochar Particles to Produce the Value-Added Product of Carbon Nanofibrous Felt

Liang

et al. 2021

Polymers

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Biochar is a byproduct generated from the hydrothermal liquefaction of biomass, such as corn stover, in an anaerobic environment. This work aims to convert biochar into a value-added product of carbon nanofibrous felt. First, the biochar-containing precursor membrane was prepared from simultaneous electrospinning and electrospraying. After thermal stabilization in air and carbonization in argon, the obtained precursor membrane was converted into a mechanically flexible and robust carbon nanofibrous felt. Electrochemical results revealed that the biochar-derived carbon nanofibrous felt might be a good candidate as a supercapacitor electrode with a good rate capability and high kinetic performance.

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Promising electrochemical study of titanate based anodes in direct carbon fuel cell using walnut and almond shells biochar fuel

Cited by 28 publications

References 55 publications

Electrochemical Analysis of a Titanate-Based Anode for Direct Carbon Fuel Cells

Electrochemical Analysis of a Titanate-Based Anode for Direct Carbon Fuel Cells

A Review of Non-Soil Biochar Applications

Simultaneous Electrospinning and Electrospraying for the Preparation of a Precursor Membrane Containing Hydrothermally Generated Biochar Particles to Produce the Value-Added Product of Carbon Nanofibrous Felt

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