Nitrogen-Doped Carbon Nanosheets Decorated With Mn2O3 Nanoparticles for Excellent Oxygen Reduction Reaction

Maryam Qasim; Jianhua Hou; M. A. Qadeer; Sajid Butt; M. Hassan Farooq; M. Qasim Farooq; Faryal Idrees; M. Tanveer; Jijun Zou; Muhammad Tahir

doi:10.3389/fchem.2019.00741

Nitrogen-Doped Carbon Nanosheets Decorated With Mn₂O₃ Nanoparticles for Excellent Oxygen Reduction Reaction

Maryam Qasim, Jianhua Hou, M. A. Qadeer, Sajid Butt, M. Hassan Farooq, M. Qasim Farooq, Faryal Idrees, M. Tanveer, Jijun Zou, Muhammad Tahir^*

^*Corresponding author for this work

Chemical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The purpose of this study is to develop an active, low cost, non-precious, stable, and high-performance catalyst for oxygen reduction reaction (ORR). In this regard, Mn₂O₃-decorated nitrogen-doped carbon nanosheets (Mn₂O₃/NC) are fabricated by a two-step strategy involving a hydrothermal method and a solid-state method. In the resultant structures, very fine Mn₂O₃ nanoparticles with an average size of about 5 nm are strongly attached to nitrogen-doped carbon nanosheets. The role of the Mn₂O₃ nanoparticles is to provide active sites for ORR, while the presence of the nitrogen-doped carbon not only enhances the conductivity of the overall structure but is also helpful for overall stability. The Mn₂O₃/NC shows good onset potential (0.80 V@−1 mA/cm²), methanol crossover effect, and stability (90%).

Original language	English
Article number	741
Journal	Frontiers in Chemistry
Volume	7
DOIs	https://doi.org/10.3389/fchem.2019.00741
Publication status	Published - 7 Nov 2019

Bibliographical note

Publisher Copyright:
© Copyright © 2019 Qasim, Hou, Qadeer, Butt, Farooq, Farooq, Idrees, Tanveer, Zou and Tahir.

Keywords

MnO
nanosheeet
nitrogen doped carbon
oxygen evaluation reaction
PT

ASJC Scopus subject areas

General Chemistry

Access to Document

10.3389/fchem.2019.00741

Cite this

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title = "Nitrogen-Doped Carbon Nanosheets Decorated With Mn2O3 Nanoparticles for Excellent Oxygen Reduction Reaction",

abstract = "The purpose of this study is to develop an active, low cost, non-precious, stable, and high-performance catalyst for oxygen reduction reaction (ORR). In this regard, Mn2O3-decorated nitrogen-doped carbon nanosheets (Mn2O3/NC) are fabricated by a two-step strategy involving a hydrothermal method and a solid-state method. In the resultant structures, very fine Mn2O3 nanoparticles with an average size of about 5 nm are strongly attached to nitrogen-doped carbon nanosheets. The role of the Mn2O3 nanoparticles is to provide active sites for ORR, while the presence of the nitrogen-doped carbon not only enhances the conductivity of the overall structure but is also helpful for overall stability. The Mn2O3/NC shows good onset potential (0.80 V@−1 mA/cm2), methanol crossover effect, and stability (90\%).",

keywords = "MnO, nanosheeet, nitrogen doped carbon, oxygen evaluation reaction, PT",

author = "Maryam Qasim and Jianhua Hou and Qadeer, \{M. A.\} and Sajid Butt and Farooq, \{M. Hassan\} and Farooq, \{M. Qasim\} and Faryal Idrees and M. Tanveer and Jijun Zou and Muhammad Tahir",

note = "Publisher Copyright: {\textcopyright} Copyright {\textcopyright} 2019 Qasim, Hou, Qadeer, Butt, Farooq, Farooq, Idrees, Tanveer, Zou and Tahir.",

year = "2019",

month = nov,

day = "7",

doi = "10.3389/fchem.2019.00741",

language = "English",

volume = "7",

journal = "Frontiers in Chemistry",

issn = "2296-2646",

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TY - JOUR

T1 - Nitrogen-Doped Carbon Nanosheets Decorated With Mn2O3 Nanoparticles for Excellent Oxygen Reduction Reaction

AU - Qasim, Maryam

AU - Hou, Jianhua

AU - Qadeer, M. A.

AU - Butt, Sajid

AU - Farooq, M. Hassan

AU - Farooq, M. Qasim

AU - Idrees, Faryal

AU - Tanveer, M.

AU - Zou, Jijun

AU - Tahir, Muhammad

PY - 2019/11/7

Y1 - 2019/11/7

N2 - The purpose of this study is to develop an active, low cost, non-precious, stable, and high-performance catalyst for oxygen reduction reaction (ORR). In this regard, Mn2O3-decorated nitrogen-doped carbon nanosheets (Mn2O3/NC) are fabricated by a two-step strategy involving a hydrothermal method and a solid-state method. In the resultant structures, very fine Mn2O3 nanoparticles with an average size of about 5 nm are strongly attached to nitrogen-doped carbon nanosheets. The role of the Mn2O3 nanoparticles is to provide active sites for ORR, while the presence of the nitrogen-doped carbon not only enhances the conductivity of the overall structure but is also helpful for overall stability. The Mn2O3/NC shows good onset potential (0.80 V@−1 mA/cm2), methanol crossover effect, and stability (90%).

AB - The purpose of this study is to develop an active, low cost, non-precious, stable, and high-performance catalyst for oxygen reduction reaction (ORR). In this regard, Mn2O3-decorated nitrogen-doped carbon nanosheets (Mn2O3/NC) are fabricated by a two-step strategy involving a hydrothermal method and a solid-state method. In the resultant structures, very fine Mn2O3 nanoparticles with an average size of about 5 nm are strongly attached to nitrogen-doped carbon nanosheets. The role of the Mn2O3 nanoparticles is to provide active sites for ORR, while the presence of the nitrogen-doped carbon not only enhances the conductivity of the overall structure but is also helpful for overall stability. The Mn2O3/NC shows good onset potential (0.80 V@−1 mA/cm2), methanol crossover effect, and stability (90%).

KW - MnO

KW - nanosheeet

KW - nitrogen doped carbon

KW - oxygen evaluation reaction

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