Tuning the oxidation state of manganese oxide nanoparticles on oxygen- and nitrogen-functionalized carbon nanotubes for the electrocatalytic oxygen evolution reaction

2017 ◽  
Vol 19 (28) ◽  
pp. 18434-18442 ◽  
Author(s):  
Hendrik Antoni ◽  
Wei Xia ◽  
Justus Masa ◽  
Wolfgang Schuhmann ◽  
Martin Muhler
Keyword(s):  
Carbon Nanotubes ◽  
Manganese Oxide ◽  
Oxygen Evolution ◽  
Oxidation State ◽  
Oxygen Evolution Reaction ◽  
Oxide Nanoparticles ◽  
Functionalized Carbon Nanotubes ◽  
Manganese Oxide Nanoparticles

The oxidation state of manganese oxide nanoparticles can be more easily changed when using nitrogen-functionalized carbon nanotubes as the support.

scholarly journals Oxidative Deposition of Manganese Oxide Nanosheets on Nitrogen-Functionalized Carbon Nanotubes Applied in the Alkaline Oxygen Evolution Reaction

ACS Omega ◽  
2018 ◽  
Vol 3 (9) ◽  
pp. 11216-11226 ◽  
Author(s):  
Hendrik Antoni ◽  
Dulce M. Morales ◽  
Qi Fu ◽  
Yen-Ting Chen ◽  
Justus Masa ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Manganese Oxide ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Functionalized Carbon Nanotubes

Effect of cobalt alloying on the electrochemical performance of manganese oxide nanoparticles nucleated on multiwalled carbon nanotubes

2017 ◽  
Vol 28 (15) ◽  
pp. 155403 ◽  
Author(s):  
Sajad Yazdani ◽  
Raana Kashfi-Sadabad ◽  
Alessandro Palmieri ◽  
William E Mustain ◽  
Michael Thompson Pettes
Keyword(s):  
Carbon Nanotubes ◽  
Electrochemical Performance ◽  
Manganese Oxide ◽  
Multiwalled Carbon Nanotubes ◽  
Oxide Nanoparticles ◽  
Multiwalled Carbon ◽  
Manganese Oxide Nanoparticles

scholarly journals Synthesis of Manganese Oxide Nanoparticles in Premixed Flames

2020 ◽  
Author(s):  
Shruthi Dasappa ◽  
Joaquin Camacho
Keyword(s):  
Manganese Oxide ◽  
Oxidation State ◽  
Flame Structure ◽  
Flame Synthesis ◽  
Oxide Nanoparticles ◽  
Particle Nucleation ◽  
Manganese Oxidation ◽  
Oxide Systems ◽  
Manganese Oxide Nanoparticles ◽  
One Dimensional

See also: CrystEngComm (2020) 22, 5509-5521"Formation of nanocrystalline manganese oxide in flames: oxide phase governed by classical nucleation and size-dependent equilibria" by Shruthi Dasappa and Joaquin CamachoSynthesis of manganese oxide nanoparticles was carried out in premixed stagnation flames. The deposition surface was stationary to enable rigorous comparison to flame structure computations using pseudo one-dimensional and full two-dimensional calculations. The pseudo one-dimensional assumption taken by OPPDIF to calculate the flame structure performs reasonably well for the narrow aspect ratio stagnation flow currently studied. Agreement between the measured flame position and both computational methods was within 0.25 cm. The variation in manganese oxidation state in the products observed here is shown to be caused by competing oxidation and particle nucleation processes. Complimentary experimental and modeling studies of flame synthesis were carried out under well-defined boundary conditions to examine this competition. Manganese oxide products having II, II,III, III and IV valence were observed depending on the flame conditions. Unlike iron oxide and titanium oxide systems, complete oxidation to MnO2 is only observed for the most oxidizing growth conditions. The first observation of phase pure MnO by flame synthesis is reported here. Manipulation of the balance between manganese oxidation and particle nucleation through control of the time-temperature-oxygen history may enable selective synthesis of manganese oxide nanoparticles with tailored morphology and oxidation state.

Functionalized Carbon Nanotubes with Ni(II) Bipyridine Complexes as Efficient Catalysts for the Alkaline Oxygen Evolution Reaction

ACS Catalysis ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. 8033-8041 ◽  
Author(s):  
Mohammad Tavakkoli ◽  
Magdalena Nosek ◽  
Jani Sainio ◽  
Fatemeh Davodi ◽  
Tanja Kallio ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Functionalized Carbon Nanotubes

MnO2 nanoflowers as a multifunctional nano-platform for enhanced photothermal/photodynamic therapy and MR imaging

2021 ◽  
Author(s):  
Wanru Sun ◽  
Hui Yu ◽  
Deqiang Wang ◽  
Youjie Li ◽  
Baocheng Tian ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Mr Imaging ◽  
Manganese Oxide ◽  
Oxide Nanoparticles ◽  
Manganese Oxide Nanoparticles

Well-defined flower-shaped manganese oxide nanoparticles modified with 3-aminopropyltriethoxysilane (APTES) and loaded with Ce6 were achieved to realize synergistic PDT/PTT therapy and MR imaging.

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