Energetics of the manganese oxide cluster cations MnNO+ (N=2–5): Role of oxygen in the binding of manganese atoms

Rechargeable aqueous aluminium batteries are the subject of growing interest, but the charge storage mechanisms at manganese oxide-based cathodes remain poorly understood with as many mechanisms as studies. Here, we use an original in situ spectroelectrochemical methodology to unambiguously demonstrate that the reversible proton-coupled MnO2-to-Mn2+ conversion is the main charge storage mechanism occurring at MnO2 cathodes over a range of slightly acidic Al3+-based aqueous electrolytes. In Zn/MnO2 assemblies, this mechanism is associated with high gravimetric capacity and discharge potentials, up to 560 mAh·g-1 and 1.76 V respectively, attractive efficiencies (CE > 98.5 % and EE > 80%) and excellent cyclability (> 750 cycles at 10 A·g-1). Finally, we conducted a critical analysis of the data previously published on MnOx cathodes in Al3+-based aqueous electrolytes to conclude on a universal charge storage mechanism, i.e., the reversible electrodissolution/electrodeposition of MnO2.

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Photodissociation of Manganese Oxide Cluster Cations

The Journal of Physical Chemistry A ◽

10.1021/acs.jpca.8b01441 ◽

2018 ◽

Vol 122 (13) ◽

pp. 3383-3390 ◽

Cited By ~ 9

Author(s):

J. H. Marks ◽

T. B. Ward ◽

M. A. Duncan

Keyword(s):

Manganese Oxide ◽

Oxide Cluster

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Catalytic Activity of Manganese Oxide Anchored on to Alumina and Zirconia for the Synthesis of Dihydropyrimidinones: Role of Acidity, Crystal Phase and Morphology

Current Catalysis ◽

10.2174/2211544703999140130115808 ◽

2014 ◽

Vol 3 (1) ◽

pp. 88-102 ◽

Cited By ~ 2

Author(s):

Mahadevaiah Rekha ◽

Hagalahalli Hareesh ◽

Nagaraju Kathyayini ◽

Narasimaiah Nagaraju

Keyword(s):

Catalytic Activity ◽

Manganese Oxide ◽

Crystal Phase

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The role of surface carboxylates in catalytic ozonation of acetone on alumina-supported manganese oxide

Chemical Engineering Research and Design ◽

10.1016/j.cherd.2017.10.002 ◽

2017 ◽

Vol 128 ◽

pp. 73-84 ◽

Cited By ~ 11

Author(s):

Mostafa Aghbolaghy ◽

Jafar Soltan ◽

Ronny Sutarto

Keyword(s):

Manganese Oxide ◽

Catalytic Ozonation

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Efficient Dye Degradation Catalyzed by Manganese Oxide Nanoparticles and the Role of Cation Valence

ChemistrySelect ◽

10.1002/slct.201600806 ◽

2016 ◽

Vol 1 (14) ◽

pp. 4265-4273 ◽

Cited By ~ 19

Author(s):

Bharati Debnath ◽

Anupam Singha Roy ◽

Sutanu Kapri ◽

Sayan Bhattacharyya

Keyword(s):

Manganese Oxide ◽

Dye Degradation ◽

Oxide Nanoparticles ◽

Manganese Oxide Nanoparticles

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Multiwalled carbon nanotube supported polypyrrole manganese oxide composite supercapacitor electrode: Role of manganese oxide dispersion in performance evolution

Electrochimica Acta ◽

10.1016/j.electacta.2013.10.173 ◽

2014 ◽

Vol 116 ◽

pp. 137-145 ◽

Cited By ~ 43

Author(s):

Sonia Grover ◽

Shashank Shekhar ◽

Raj Kishore Sharma ◽

Gurmeet Singh

Keyword(s):

Carbon Nanotube ◽

Manganese Oxide ◽

Multiwalled Carbon Nanotube ◽

Oxide Dispersion ◽

Supercapacitor Electrode ◽

Multiwalled Carbon ◽

Oxide Composite

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Infrared photodissociation spectroscopy of di-manganese oxide cluster cations

Physical Chemistry Chemical Physics ◽

10.1039/c9cp04586d ◽

2019 ◽

Vol 21 (43) ◽

pp. 23922-23930 ◽

Cited By ~ 4

Author(s):

Nina Zimmermann ◽

Thorsten M. Bernhardt ◽

Joost M. Bakker ◽

Uzi Landman ◽

Sandra M. Lang

Keyword(s):

Density Functional Theory ◽

Dft Calculations ◽

Manganese Oxide ◽

Geometric Structure ◽

Density Functional ◽

Oxide Cluster ◽

Functional Theory ◽

Infrared Multiple Photon Dissociation

Infrared multiple-photon dissociation (IR-MPD) spectroscopy and density functional theory (DFT) calculations have been employed to elucidate the geometric structure of a series of di-manganese oxide clusters Mn2Ox+ (x = 4–7).

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