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Hemin-functionalized polypyrrole/paper-derived biochar electrocatalysts: Enhanced sensor platforms for H2O2.

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Title: Hemin-functionalized polypyrrole/paper-derived biochar electrocatalysts: Enhanced sensor platforms for H2O2.
Authors: Jiang, Yuhang1 (AUTHOR), Bao, Tianshuang1 (AUTHOR), Zhao, Xiangchuan1 (AUTHOR), Wang, Qi1 (AUTHOR), Cao, Yue1 (AUTHOR), Cao, Jun1 (AUTHOR), Ji, Xingxiang2 (AUTHOR), Si, Weimeng1 (AUTHOR) siweimeng@foxmail.com
Source: Progress in Natural Science. Apr2024, Vol. 34 Issue 2, p280-289. 10p.
Abstract: As a H 2 O 2 electrochemical biomimetic enzyme sensor, the stability, repeatability and sensitivity of hemin-based composites are closely connected with the loading of hemin on high-performance matrix. Herein, polypyrrole/paper-derived carbon (PPy/PC) nanocomposite was used for the construction of a hemin-based non-enzymatic sensor to detect H 2 O 2. Where the poplar wood is used to obtain crude cellulose through a straightforward paper-making process. This crude cellulose is then subjected to pyrolysis to yield the desired paper-based carbon material. The hemin-decorated PPy/PC was demonstrated possessing remarkable electrocatalytic activity for H 2 O 2 reduction, and the possible mechanism of the reactions was discussed. The electrochemical sensor, utilizing the H-PPy/PC composite, achieved a low detection limit of 30 ​nM, along with enhanced selectivity and stability under optimized conditions. The favorable results observed can primarily be attributed to the superior electrochemical performance of PPy/PC, as well as its unique 3D interconnected structure. This structure effectively impedes the self-dimerization of hemin, thereby ensuring the generation of active catalytic species. [ABSTRACT FROM AUTHOR]
Copyright of Progress in Natural Science is the property of Elsevier B.V. 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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  Data: Hemin-functionalized polypyrrole/paper-derived biochar electrocatalysts: Enhanced sensor platforms for H2O2.
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  Data: <searchLink fieldCode="AR" term="%22Jiang%2C+Yuhang%22">Jiang, Yuhang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bao%2C+Tianshuang%22">Bao, Tianshuang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhao%2C+Xiangchuan%22">Zhao, Xiangchuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Qi%22">Wang, Qi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cao%2C+Yue%22">Cao, Yue</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cao%2C+Jun%22">Cao, Jun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ji%2C+Xingxiang%22">Ji, Xingxiang</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Si%2C+Weimeng%22">Si, Weimeng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> siweimeng@foxmail.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Progress+in+Natural+Science%22">Progress in Natural Science</searchLink>. Apr2024, Vol. 34 Issue 2, p280-289. 10p.
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: As a H 2 O 2 electrochemical biomimetic enzyme sensor, the stability, repeatability and sensitivity of hemin-based composites are closely connected with the loading of hemin on high-performance matrix. Herein, polypyrrole/paper-derived carbon (PPy/PC) nanocomposite was used for the construction of a hemin-based non-enzymatic sensor to detect H 2 O 2. Where the poplar wood is used to obtain crude cellulose through a straightforward paper-making process. This crude cellulose is then subjected to pyrolysis to yield the desired paper-based carbon material. The hemin-decorated PPy/PC was demonstrated possessing remarkable electrocatalytic activity for H 2 O 2 reduction, and the possible mechanism of the reactions was discussed. The electrochemical sensor, utilizing the H-PPy/PC composite, achieved a low detection limit of 30 ​nM, along with enhanced selectivity and stability under optimized conditions. The favorable results observed can primarily be attributed to the superior electrochemical performance of PPy/PC, as well as its unique 3D interconnected structure. This structure effectively impedes the self-dimerization of hemin, thereby ensuring the generation of active catalytic species. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Progress in Natural Science is the property of Elsevier B.V. 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: 10.1016/j.pnsc.2024.02.017
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        Text: English
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              Text: Apr2024
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