Low-temperature synthesis of doped MnO2–carbon dots nanocomposite: an analysis of nanostructure and electrical properties

E. Hastuti; F. Fitriana; M. Zainuri; S. Suasmoro

doi:10.1007/s40243-023-00237-4

Low-temperature synthesis of doped MnO₂–carbon dots nanocomposite: an analysis of nanostructure and electrical properties

E. Hastuti
, F. Fitriana
, M. Zainuri
, S. Suasmoro^*

^*Corresponding author for this work

State Islamic University Of Malang
Universitas Negeri Surabaya
Institut Teknologi Sepuluh Nopember

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

7 Citations (Scopus)

Abstract

The synthesis of δ-MnO₂, δ-MnO₂ carbon dots nanocomposite, and Fe/Cu-doped δ-MnO₂ carbon dots nanocomposite has been successfully carried out through a stirring process at room temperature and 80 °C. The synthesized powder shows a low crystallization determined through XRD and TEM analysis. Furthermore, the carbon dots are well attached to MnO₂ performing a core–shell composite material, while the doping ions Fe and Cu were incorporated into the matrix substitute Mn in the MnO₆ octahedron, although potassium ions were also detected. The manganese possess an oxidation state of + 3 and + 4, which promotes the oxygen vacancy creation VO·· denoting the conductivity decrease.

Original language	English
Pages (from-to)	159-169
Number of pages	11
Journal	Materials for Renewable and Sustainable Energy
Volume	12
Issue number	2
DOIs	https://doi.org/10.1007/s40243-023-00237-4
Publication status	Published - Aug 2023

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Low temperatures
Manganese oxide
Nanocomposite
Oxidation state
Synthesis

Access to Document

10.1007/s40243-023-00237-4

Cite this

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title = "Low-temperature synthesis of doped MnO2–carbon dots nanocomposite: an analysis of nanostructure and electrical properties",

abstract = "The synthesis of δ-MnO2, δ-MnO2 carbon dots nanocomposite, and Fe/Cu-doped δ-MnO2 carbon dots nanocomposite has been successfully carried out through a stirring process at room temperature and 80 °C. The synthesized powder shows a low crystallization determined through XRD and TEM analysis. Furthermore, the carbon dots are well attached to MnO2 performing a core–shell composite material, while the doping ions Fe and Cu were incorporated into the matrix substitute Mn in the MnO6 octahedron, although potassium ions were also detected. The manganese possess an oxidation state of + 3 and + 4, which promotes the oxygen vacancy creation VO·· denoting the conductivity decrease.",

keywords = "Low temperatures, Manganese oxide, Nanocomposite, Oxidation state, Synthesis",

author = "E. Hastuti and F. Fitriana and M. Zainuri and S. Suasmoro",

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year = "2023",

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doi = "10.1007/s40243-023-00237-4",

language = "English",

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T1 - Low-temperature synthesis of doped MnO2–carbon dots nanocomposite

T2 - an analysis of nanostructure and electrical properties

AU - Hastuti, E.

AU - Fitriana, F.

AU - Zainuri, M.

AU - Suasmoro, S.

PY - 2023/8

Y1 - 2023/8

N2 - The synthesis of δ-MnO2, δ-MnO2 carbon dots nanocomposite, and Fe/Cu-doped δ-MnO2 carbon dots nanocomposite has been successfully carried out through a stirring process at room temperature and 80 °C. The synthesized powder shows a low crystallization determined through XRD and TEM analysis. Furthermore, the carbon dots are well attached to MnO2 performing a core–shell composite material, while the doping ions Fe and Cu were incorporated into the matrix substitute Mn in the MnO6 octahedron, although potassium ions were also detected. The manganese possess an oxidation state of + 3 and + 4, which promotes the oxygen vacancy creation VO·· denoting the conductivity decrease.

AB - The synthesis of δ-MnO2, δ-MnO2 carbon dots nanocomposite, and Fe/Cu-doped δ-MnO2 carbon dots nanocomposite has been successfully carried out through a stirring process at room temperature and 80 °C. The synthesized powder shows a low crystallization determined through XRD and TEM analysis. Furthermore, the carbon dots are well attached to MnO2 performing a core–shell composite material, while the doping ions Fe and Cu were incorporated into the matrix substitute Mn in the MnO6 octahedron, although potassium ions were also detected. The manganese possess an oxidation state of + 3 and + 4, which promotes the oxygen vacancy creation VO·· denoting the conductivity decrease.

KW - Low temperatures

KW - Manganese oxide

KW - Nanocomposite

KW - Oxidation state

KW - Synthesis

UR - https://www.scopus.com/pages/publications/85166562122

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DO - 10.1007/s40243-023-00237-4

M3 - Article

AN - SCOPUS:85166562122

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SP - 159

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JO - Materials for Renewable and Sustainable Energy

JF - Materials for Renewable and Sustainable Energy

IS - 2

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