Articles with "mn3o4" as a keyword



Photothermal Hydrogel with Mn3O4 Nanoparticles Alleviates Intervertebral Disc Degeneration by Scavenging ROS and Regulating Extracellular Matrix Metabolism

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Published in 2025 at "Advanced Functional Materials"

DOI: 10.1002/adfm.202422817

Abstract: Annulus fibrosus (AF) injury plays a critical role in intervertebral disc degeneration (IVDD), with oxidative stress and extracellular matrix (ECM) imbalance being major pathogenic factors. However, effective repair methods are limited. In this study, an… read more here.

Keywords: mn3o4; disc degeneration; intervertebral disc; extracellular matrix ... See more keywords

One-step synthesis of an octahedral Mn3O4/rGO composite for use as an electrocatalyst in the oxygen reduction reaction

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Published in 2018 at "Journal of Solid State Electrochemistry"

DOI: 10.1007/s10008-018-3902-6

Abstract: AbstractThe development of low-cost, high-performance, non-precious-metal catalysts for the oxygen reduction reaction (ORR) is highly desirable. In this work, a composite comprising octahedral manganese oxide supported on reduced graphene oxide (Mn3O4/rGO) was synthesized by a… read more here.

Keywords: rgo composite; mn3o4 rgo; mn3o4; reduction reaction ... See more keywords

Electrocatalytic activity of new Mn3O4@oxidized graphene flakes nanocomposites toward oxygen reduction reaction

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Published in 2019 at "Journal of Materials Science"

DOI: 10.1007/s10853-019-03508-6

Abstract: The demand for cost-efficient and non-precious metal-based electrocatalysts toward oxygen reduction reaction (ORR) is crucial in the field of electrochemical energy conversion/storage technologies. Herein, we report a facile one-step co-precipitation route for the in situ… read more here.

Keywords: electrocatalytic activity; toward oxygen; mn3o4; reduction reaction ... See more keywords
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Thermally activated structural transformations in manganese oxide nanoparticles under air and argon atmospheres

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Published in 2020 at "Journal of Materials Science"

DOI: 10.1007/s10853-020-04525-6

Abstract: The properties of manganese oxide nanomaterials are dictated by the structure and morphology of the particular phases they can adopt. In this work, the effects of post-synthesis heat treatments on amorphous monodisperse manganese oxide nanoparticles… read more here.

Keywords: manganese oxide; oxide nanoparticles; air; mn3o4 ... See more keywords

Free-standing and binder-free electrochemical capacitor electrode based on hierarchical microfibrous carbon–graphene–Mn3O4 nanocomposites materials

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Published in 2018 at "Journal of Materials Science: Materials in Electronics"

DOI: 10.1007/s10854-018-9618-7

Abstract: Hierarchical microfibers carbon–graphene–Mn3O4 (MFC–G–Mn3O4) nanocomposites have been successfully prepared via a simple, effective, and scalable chemical deposition method. It was applied as a free-standing and binder-free electrodes for an electrochemical capacitor. The graphene was first… read more here.

Keywords: graphene; graphene mn3o4; mn3o4; electrode ... See more keywords

3D porous Mn3O4/PANi electrodes similar to reinforced concrete structure for high performance supercapacitors

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Published in 2018 at "Journal of Materials Science: Materials in Electronics"

DOI: 10.1007/s10854-018-9787-4

Abstract: A tetraphenyl porphyrin tetrasulfonic acid (TPPS)-modified three-dimensional porous Mn3O4/PANi composites electrode was prepared, which has excellent electrical conductivity and rate performance. The conductivity and stability of polyaniline (PANi) gels have been improved due to the… read more here.

Keywords: porous mn3o4; mn3o4 pani; mn3o4; structure ... See more keywords

Synthesis and Characterization of ZnO, Mn3O4, and ZnMn2O4 Spinel by New Chelation-Precipitation Method: Magnetic and Antimicrobial Properties

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Published in 2024 at "Journal of Inorganic and Organometallic Polymers and Materials"

DOI: 10.1007/s10904-024-03489-3

Abstract: Using a chelation-precipitation method, five samples were synthesized in the presence of chelating agents by altering the proportion of ZnO to Mn3O4. Specifically, Z contains only ZnO, Z3M1 has a 3:1 ratio of ZnO to… read more here.

Keywords: mn3o4; chelation precipitation; precipitation method; zno mn3o4 ... See more keywords

Mn3O4/p(DCPD)HIPE nanocomposites as an efficient catalyst for oxidative degradation of phenol

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Published in 2020 at "Journal of Nanoparticle Research"

DOI: 10.1007/s11051-020-04931-6

Abstract: The increase in the amount of wastewater containing organic pollutants in various industrial processes creates serious problems for the environment. Sulfate radical-based advanced oxidation process (AOP) is an effective route to remove pollutants from wastewater.… read more here.

Keywords: mn3o4 dcpd; dcpd hipe; catalyst; mn3o4 ... See more keywords
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Imidacloprid degradation by electro-Fenton process using composite Fe3O4–Mn3O4 nanoparticle catalyst

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Published in 2020 at "Research on Chemical Intermediates"

DOI: 10.1007/s11164-020-04246-0

Abstract: Imidacloprid (IMI) is a widely used systemic pesticide that acts on the central nervous system of insects. In Vietnam, IMI was imported and manufactured in large quantities for agriculture activities. The presence of high IMI… read more here.

Keywords: catalyst; electro fenton; fe3o4; mn3o4 ... See more keywords

Facile synthesis of three-dimensional Mn3O4 hierarchical microstructures for efficient catalytic phenol oxidation with peroxymonosulfate

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Published in 2019 at "Applied Surface Science"

DOI: 10.1016/j.apsusc.2019.143568

Abstract: Abstract Hierarchical porous materials have a wide application prospect in heterogeneous catalysis because they can provide plentiful surface active sites and well-developed mass transfer channels while being easily separable, as compared with their nanosized counterparts.… read more here.

Keywords: phenol oxidation; surface; oxidation; mn3o4 ... See more keywords

In-situ generated Mn3O4-reduced graphene oxide nanocomposite for oxygen reduction reaction and isolated reduced graphene oxide for supercapacitor applications

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Published in 2019 at "Carbon"

DOI: 10.1016/j.carbon.2019.08.012

Abstract: Abstract We have generated in situ nanocomposite of Mn3O4 and reduced graphene oxide (rGO) upon employing wet-chemical reduction of graphene oxide (GO) by Mn(II) salt as mild-reducing agent for the first time and examined the… read more here.

Keywords: reduction; supercapacitor; reduced graphene; graphene oxide ... See more keywords