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High-Power-Density Thermoelectrochemical Cell Based on Ni/NiO Nanostructured Microsphere Electrodes with Alkaline Electrolyte.

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Title: High-Power-Density Thermoelectrochemical Cell Based on Ni/NiO Nanostructured Microsphere Electrodes with Alkaline Electrolyte.
Authors: Artyukhov, Denis1,2 (AUTHOR) a-asmolova@mail.ru, Kiselev, Nikolay3,4 (AUTHOR) nikokisely12345@gmail.com, Boychenko, Elena3,4,5 (AUTHOR) elena.boychenko.sar@gmail.com, Asmolova, Aleksandra2 (AUTHOR) zheleznov_denis@internet.ru, Zheleznov, Denis2 (AUTHOR), Artyukhov, Ivan1 (AUTHOR), Burmistrov, Igor3,4 (AUTHOR) glas100@yandex.ru, Gorshkov, Nikolay2 (AUTHOR) art@labmem.ru
Source: Nanomaterials (2079-4991). Aug2023, Vol. 13 Issue 16, p2290. 14p.
Subjects: Waste heat, Seebeck coefficient, Energy conversion, Electrodes, Electrolytes, Hollow fibers
Abstract: Effective low-grade waste heat harvesting and its conversion into electric energy by the means of thermoelectrochemical cells (TECs) are a strong theme in the field of renewable energy investigation. Despite considerable scientific research, TECs have not yet been practically applied due to the high cost of electrode materials and low effectiveness levels. A large hypothetical Seebeck coefficient allow the harvest of the low-grade waste heat and, particularly, to use TECs for collecting human body heat. This paper demonstrates the investigation of estimated hypothetical Seebeck coefficient dependency on KOH electrolyte concentration for TECs with hollow nanostructured Ni/NiO microsphere electrodes. It proposes a thermoelectrochemical cell with power density of 1.72 W·m−2 and describes the chemistry of electrodes and near-electrode space. Also, the paper demonstrates a decrease in charge transfer resistance from 3.5 to 0.52 Ω and a decrease in capacitive behavior with increasing electrolyte concentration due to diffusion effects. [ABSTRACT FROM AUTHOR]
Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Label: Title
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  Data: High-Power-Density Thermoelectrochemical Cell Based on Ni/NiO Nanostructured Microsphere Electrodes with Alkaline Electrolyte.
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  Data: <searchLink fieldCode="AR" term="%22Artyukhov%2C+Denis%22">Artyukhov, Denis</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> a-asmolova@mail.ru</i><br /><searchLink fieldCode="AR" term="%22Kiselev%2C+Nikolay%22">Kiselev, Nikolay</searchLink><relatesTo>3,4</relatesTo> (AUTHOR)<i> nikokisely12345@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Boychenko%2C+Elena%22">Boychenko, Elena</searchLink><relatesTo>3,4,5</relatesTo> (AUTHOR)<i> elena.boychenko.sar@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Asmolova%2C+Aleksandra%22">Asmolova, Aleksandra</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> zheleznov_denis@internet.ru</i><br /><searchLink fieldCode="AR" term="%22Zheleznov%2C+Denis%22">Zheleznov, Denis</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Artyukhov%2C+Ivan%22">Artyukhov, Ivan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Burmistrov%2C+Igor%22">Burmistrov, Igor</searchLink><relatesTo>3,4</relatesTo> (AUTHOR)<i> glas100@yandex.ru</i><br /><searchLink fieldCode="AR" term="%22Gorshkov%2C+Nikolay%22">Gorshkov, Nikolay</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> art@labmem.ru</i>
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  Data: <searchLink fieldCode="JN" term="%22Nanomaterials+%282079-4991%29%22">Nanomaterials (2079-4991)</searchLink>. Aug2023, Vol. 13 Issue 16, p2290. 14p.
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  Data: <searchLink fieldCode="DE" term="%22Waste+heat%22">Waste heat</searchLink><br /><searchLink fieldCode="DE" term="%22Seebeck+coefficient%22">Seebeck coefficient</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+conversion%22">Energy conversion</searchLink><br /><searchLink fieldCode="DE" term="%22Electrodes%22">Electrodes</searchLink><br /><searchLink fieldCode="DE" term="%22Electrolytes%22">Electrolytes</searchLink><br /><searchLink fieldCode="DE" term="%22Hollow+fibers%22">Hollow fibers</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Effective low-grade waste heat harvesting and its conversion into electric energy by the means of thermoelectrochemical cells (TECs) are a strong theme in the field of renewable energy investigation. Despite considerable scientific research, TECs have not yet been practically applied due to the high cost of electrode materials and low effectiveness levels. A large hypothetical Seebeck coefficient allow the harvest of the low-grade waste heat and, particularly, to use TECs for collecting human body heat. This paper demonstrates the investigation of estimated hypothetical Seebeck coefficient dependency on KOH electrolyte concentration for TECs with hollow nanostructured Ni/NiO microsphere electrodes. It proposes a thermoelectrochemical cell with power density of 1.72 W·m−2 and describes the chemistry of electrodes and near-electrode space. Also, the paper demonstrates a decrease in charge transfer resistance from 3.5 to 0.52 Ω and a decrease in capacitive behavior with increasing electrolyte concentration due to diffusion effects. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3390/nano13162290
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      – Code: eng
        Text: English
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        PageCount: 14
        StartPage: 2290
    Subjects:
      – SubjectFull: Waste heat
        Type: general
      – SubjectFull: Seebeck coefficient
        Type: general
      – SubjectFull: Energy conversion
        Type: general
      – SubjectFull: Electrodes
        Type: general
      – SubjectFull: Electrolytes
        Type: general
      – SubjectFull: Hollow fibers
        Type: general
    Titles:
      – TitleFull: High-Power-Density Thermoelectrochemical Cell Based on Ni/NiO Nanostructured Microsphere Electrodes with Alkaline Electrolyte.
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            NameFull: Artyukhov, Denis
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            NameFull: Kiselev, Nikolay
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            NameFull: Boychenko, Elena
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            – D: 15
              M: 08
              Text: Aug2023
              Type: published
              Y: 2023
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