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Heterostructured Mn3O4-2D material nanosheets: One-step vacuum kinetic spray deposition and non-enzymatic H2O2 sensing

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Abstract
Hybrid nanocomposites (NCs) of Mn3O4 nanorods and 2D materials (MoS2 or graphene) nanosheets are successfully deposited on nickel foam porous substrate at room temperature using a one-step kinetic spray process in low-vacuum conditions. Mn3O4-based NCs are utilized for the electrocatalytic detection of H2O2 in 0.1 M NaOH. The synergy improvement between the Mn3O4 nanorods and either MoS2 or graphene nanosheets improved the non-enzymatic detection of H2O2. All modified electrodes exhibit a wide linear detection range from 0.2 to 1 mM. The working electrodes with Mn3O4 nanorods reveal high sensitivity of 2320 μA mM?1 cm?2 toward H2O2 reduction. The hybridization between Mn3O4 nanorods and either MoS2 or graphene enhances the electrocatalytic reduction sensitivity to 3220 or 5400 μA mM?1 cm?2, respectively. Furthermore, the modified electrodes with the Mn3O4-2D material hybrid NCs exhibited high electrocatalytic reduction selectivity for H2O2 in 0.1 M NaOH compared with other interfering species.
Author(s)
라슈완 아흐메드 갈랄 압델레힘천두만
Issued Date
2021
Type
Article
Keyword
Mn3O4-MoS2 nanocompositesMn3O4-graphene nanocompositesNanoparticle deposition system (NPDS)Non-enzymatic H2O2 sensing2D material nanosheets
DOI
10.1016/j.ceramint.2021.09.054
URI
https://oak.ulsan.ac.kr/handle/2021.oak/8892
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_crossref_primary_10_1016_j_ceramint_2021_09_054&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Heterostructured%20Mn3O4-2D%20material%20nanosheets:%20One-step%20vacuum%20kinetic%20spray%20deposition%20and%20non-enzymatic%20H2O2%20sensing&offset=0
Publisher
CERAMICS INTERNATIONAL
Location
영국
Language
영어
ISSN
0272-8842
Citation Volume
47
Citation Number
24
Citation Start Page
35111
Citation End Page
35123
Appears in Collections:
Engineering > Mechanical and Automotive Engineering
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