Thermoelectric properties of P-doped and V-doped Fe<sub>2</sub>O<sub>3</sub>for renewable energy conversion

Hwang, H. K.; Seo, Jang Woo; Seo, Won Seon; Lim, Young Soo; Park, K.

doi:10.1002/er.3052

Cited by 17 publications

(6 citation statements)

References 37 publications

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“…Foreign ion doping is a widely used method for metal oxides to improve the intrinsic electrical conductivity . Recently, Lu et al .…”

Section: Intrinsic Modifications Of Iron Oxides/hydroxidesmentioning

confidence: 99%

Nanostructured Iron Oxide/Hydroxide‐Based Electrode Materials for Supercapacitors

Xia

et al. 2016

ChemNanoMat

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There is ap ressing need to further increase the energy density of supercapacitors to meet the requirements of next-generation electronic devices.O ne promising solution is to develop advanced electrode materials with large capacitance at fast charge/discharge rates. Among the newly developed electrode materials for supercapacitors, iron oxides/hydroxidesh ave recently emerged as ap romising class of anode materials largely because of their attractive electrochemical performance,s ource abundance,l ow price, and environmental friendliness. However,t he use of these emerging materials in practical set-ups is unfortunately curtailed by their relativelys mall surface area and poor electrical conductivity,w hich could pose detrimental effects on their pseudocapacitive performance. Recently,material scientists and chemists in the energy community have attempted to address these materials'c hallenges by taking the advantage of the unique physical and chemical properties of iron oxides/hydroxides at the nanoscale size regime, which are the key topics discussed in this Focus Review.H ere, we first summarize recent advances in the developmento fh igh-performance iron oxide/hydroxide-based electrode materials, and their use as anode materials in asymmetric supercapacitors. We then highlight and exemplify several effective design strategies, such as architecturald esign, chemical modification, and multifunctional composites of iron oxide/ hydroxide-based electrodes, to further improvet heir electrochemicalp roperties. In the last section, we discuss the challenges and perspectivesi nt his exciting field, shedding some light on the design of iron oxide/hydroxide-based electrodes for practical applications.[a] Q.The ORCID identification number(s) for the author(s) of this article canbe found under http://dx.

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“…Foreign ion doping is a widely used method for metal oxides to improve the intrinsic electrical conductivity . Recently, Lu et al .…”

Section: Intrinsic Modifications Of Iron Oxides/hydroxidesmentioning

confidence: 99%

Nanostructured Iron Oxide/Hydroxide‐Based Electrode Materials for Supercapacitors

Xia

et al. 2016

ChemNanoMat

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“…In this part of the study, the effect of changing the compression ratio (8,10,12) will be shown, which is the most common for SI engines. As the compression ratio increases, the temperature of the combustion gases increases, due to the increase of the pressure of the combustion gases.…”

Section: Resultsmentioning

confidence: 99%

“…Researchers [6][7][8][9][10][11] in literature studied the usage of the TEG on the AWHRAs versus many factors to get better performance. The most used locations according to literature are the radiator and the exhaust pipe.…”

Section: Introductionmentioning

confidence: 99%

Internal combustion engine waste heat recovery by a thermoelectric generator inserted at combustion chamber walls

Al‐Nimr

Alajlouni

2018

Int J Energy Res

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Summary In this study, a thermoelectric module has been inserted at the wall of the combustion chamber of an internal combustion engine (ICE) to improve its performance by taking the advantage of the high‐temperature difference between ICE combustion gases and coolant fluid. A mathematical analysis under steady‐state conditions has been introduced to investigate the effects of the proposed system. The generated electrical power has been studied versus many parameters such as revolution per minute (RPM), compression ratio of the engine, coolant fluid type, and coolant fluid temperature. The proposed position in this study has many features over the other positions, as the promising innovative position can achieve great results. A typical spark ignition (SI) engine has been used with a suitable thermoelectric generation (TEG) inserted at the wall of the engine's combustion chamber. As a result, 600 W of electrical energy was produced by the proposed system and the efficiency was increased by 2.75% at 4000 RPM which is interestingly better than other TEGs inserted on the exhaust pipe or the radiator of the automobile.

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“…Therefore, the value of PF is frequently used in the development of thermoelectric materials. 29,41,42) Figure 9(a) shows the relationships between R and S in this study. Increasing the oxidation temperature produced increases not only in S but also in R. Therefore, a good correlation between R and S can be seen in Fig.…”

Section: Estimation Of Maximum Powermentioning

confidence: 89%

The effect of oxidation temperature on the thermoelectric performance of a plate-type thermoelectric power generator

Ogi¹,

Tohmyoh²

2019

Jpn. J. Appl. Phys.

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This paper reports on the effect of oxidation temperature on the thermoelectric performance of a plate-type thermoelectric power generator. Recently, thermoelectric power generation methods have attracted considerable attention as energy harvesting technologies. Among these, a plate-type thermoelectric power generator in which an Al layer is deposited on a Fe plate has been reported. Although oxidation of the surface of the Fe plate was verified experimentally to be effective in enhancing the thermoelectric performance, the kind of oxide suitable for a plate-type generator has yet to be investigated. In this study we oxidized the surface of an Fe plate at different temperatures, and plate-type thermoelectric power generators having various oxides at the bi-metallic interface were fabricated. It was found that Fe 2 O 3 made a large contribution to increasing the Seebeck coefficient compared with Fe 3 O 4 . The generator with a bi-metallic interface oxidized at 400 °C showed the maximum power, the value being 1.4 μW at a temperature difference of 40 °C. Furthermore, we developed a theoretical model to predict the maximum power of a plate-type generator based on solid-state physics, and the predicted values were in good agreement with the experimental ones.

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Thermoelectric properties of P-doped and V-doped Fe₂O₃for renewable energy conversion

Cited by 17 publications

References 37 publications

Nanostructured Iron Oxide/Hydroxide‐Based Electrode Materials for Supercapacitors

Nanostructured Iron Oxide/Hydroxide‐Based Electrode Materials for Supercapacitors

Internal combustion engine waste heat recovery by a thermoelectric generator inserted at combustion chamber walls

The effect of oxidation temperature on the thermoelectric performance of a plate-type thermoelectric power generator

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Thermoelectric properties of P-doped and V-doped Fe2O3for renewable energy conversion

Cited by 17 publications

References 37 publications

Nanostructured Iron Oxide/Hydroxide‐Based Electrode Materials for Supercapacitors

Nanostructured Iron Oxide/Hydroxide‐Based Electrode Materials for Supercapacitors

Internal combustion engine waste heat recovery by a thermoelectric generator inserted at combustion chamber walls

The effect of oxidation temperature on the thermoelectric performance of a plate-type thermoelectric power generator

Contact Info

Product

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Thermoelectric properties of P-doped and V-doped Fe₂O₃for renewable energy conversion