Growth restriction of
 <scp>
 Co
 3
 O
 4
 </scp>
 nanoparticles by
 <scp>
 α‐MnO
 2
 </scp>
 nanorods as air cathode catalyst for rechargeable aluminum‐air battery

Hu, Tongrui; Zhang, Wenfeng; Xia, Zijie; Zhu, Yunfeng; Liu, Yana; Zhang, Ji‐Guang; Li, Liquan

doi:10.1002/er.7917

Cited by 7 publications

(3 citation statements)

References 45 publications

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“…[6] Furthermore, its integration into a hybrid catalyst or mixing with an OER active catalyst is quite common in literature. [4,[15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34] Since the electronic conductivity of metal-oxide catalysts is low compared to metallic catalysts, they are typically mixed with conductive additives and major work on MnO 2 -based catalysts bifunctional air electrodes has been performed in carbon-based systems. [4,12,[15][16][17]22,24,25,[28][29][30][35][36][37][38][39][40][41] However, the long-term stability of carbon-based bifunctional air electrodes is not satisfactory due to the carbon corrosion potential being close to that of the OER.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of Highly Active Carbon‐, Cobalt‐, and Noble Metal‐Free MnO₂/NiO/Ni‐Based Bifunctional Air Electrodes for Metal–Air Batteries with an Alkaline Electrolyte

et al. 2023

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Compared to other battery technologies, metal-air batteries offer high specific capacities because the active material at the cathode side is supplied by ambient atmosphere. To secure and further extend this advantage, the development of highly active and stable bifunctional air electrodes is currently the main challenge that needs to be resolved. Herein, a highly active carbon-, cobalt-, and noble-metal-free MnO 2 /NiO-based bifunctional air electrode is presented for metal-air batteries in alkaline electrolytes. Notably, while electrodes without MnO 2 reveal stable current densities over 100 cyclic voltammetry cycles, MnO 2 containing samples show a superior initial activity and an elevated open circuit potential. Along this line, the partial substitution of MnO 2 by NiO drastically increases the cycling stability of the electrode. X-ray diffractograms, scanning electron microscopy images, and energy-dispersive X-ray spectra are obtained before and after cycling to investigate structural changes of the hot-pressed electrodes. XRD results suggest that MnO 2 is dissolved or transformed into an amorphous phase during cycling. Furthermore, SEM micrographs show that the porous structure of a MnO 2 and NiO containing electrode is not maintained during cycling.

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Section: Introductionmentioning

confidence: 99%

“…[ 6 ] Furthermore, its integration into a hybrid catalyst or mixing with an OER active catalyst is quite common in literature. [ 4 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 ]…”

Section: Introductionmentioning

confidence: 99%

Investigation of Highly Active Carbon‐, Cobalt‐, and Noble Metal‐Free MnO₂/NiO/Ni‐Based Bifunctional Air Electrodes for Metal–Air Batteries with an Alkaline Electrolyte

et al. 2023

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“…The factors those distinguish MOFs from other materials are their distinctive qualities such as multifunctionality, and diversity of structure that can be customized by varying either the physical or chemical properties or the both. These properties of MOFs make them attractive in different research communities for a variety of applications such as enzyme immobilization, photocatalysts, metal-ion batteries, supercapacitors etc [8][9][10][11][12][13][14][15][16][17][18][19][20]. Many research groups are paying noticeable attention on how well solar cells work by employing this new class of porous solid-state MOF materials, as these materials have been characterized and explored as interfacial modifiers, functional or light-harvesting active layers in third-generation solar cells viz.…”

Section: Introductionmentioning

confidence: 99%

State-of-the-art with the prospects of cobalt-based metal-organic frameworks for solar cell applications

Chuhadiya,

Sharma,

Beniwal

et al. 2023

Phys. Scr.

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The characteristics of metal–organic framework (MOF) composites make them the most significant materials for energy conversion applications. MOFs are hybrid molecular frameworks synthesized using metal ions like Copper, Cobalt, Zinc, Nickel, etc and organic ligands such as BTC, NDC, etc. To meet and fulfill futuristic energy demands and needs, it is feasible to expand cost-effective energy conversion solar cell devices using MOF materials, therefore in the present work, the Cobalt-based MOFs (Co-MOF) are synthesized by coordinating Cobalt nitrate and 1,3,5 Benzene tricarboxylic acid (BTC or Trimesic acid) ligand using the Solvothermal method. To study the physiochemical properties of synthesized Co-BTC MOFs, these have gone through a variety of characterization processes where the structural exploration unveils that the intensity of the dominant peak obtained at 18.7° gradually decreases with a decrease in the concentration of trimesic acid ligand. First and second weight losses, corresponding to release of the solvent molecules and breakdown of the frameworks, respectively, were detected by thermogravimetric analysis (TGA) measurements. In the FTIR spectra, metal-oxide, modified benzene, carboxylic, and hydroxyl groups with different modes of vibrations are observed. Analysis of surface morphology demonstrated creation of rod-like geometry to the synthesized materials, whereas elemental studies inveterate effective formation of the Co-BTC MOFs. Additionally, the optimized Co-BTC MOF is applied as a potential interfacial layer in solar cells and the outcome implies that the device designed with 10 Co-BTC LBL cycle evolutions provided relatively desirable solar cell performance parameters. The present findings recommended that material progression is necessary to develop cost-effective and high-performance MOF-based solar cell devices.

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Porous transition metal-based nanostructures as efficient cathodes for aluminium-air batteries

Ipadeola

Eid

Abdullah

2023

Current Opinion in Electrochemistry

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Growth restriction of Co ₃ O ₄ nanoparticles by α‐MnO ₂ nanorods as air cathode catalyst for rechargeable aluminum‐air battery

Cited by 7 publications

References 45 publications

Investigation of Highly Active Carbon‐, Cobalt‐, and Noble Metal‐Free MnO₂/NiO/Ni‐Based Bifunctional Air Electrodes for Metal–Air Batteries with an Alkaline Electrolyte

Investigation of Highly Active Carbon‐, Cobalt‐, and Noble Metal‐Free MnO₂/NiO/Ni‐Based Bifunctional Air Electrodes for Metal–Air Batteries with an Alkaline Electrolyte

State-of-the-art with the prospects of cobalt-based metal-organic frameworks for solar cell applications

Porous transition metal-based nanostructures as efficient cathodes for aluminium-air batteries

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Growth restriction of Co 3 O 4 nanoparticles by α‐MnO 2 nanorods as air cathode catalyst for rechargeable aluminum‐air battery

Cited by 7 publications

References 45 publications

Investigation of Highly Active Carbon‐, Cobalt‐, and Noble Metal‐Free MnO2/NiO/Ni‐Based Bifunctional Air Electrodes for Metal–Air Batteries with an Alkaline Electrolyte

Investigation of Highly Active Carbon‐, Cobalt‐, and Noble Metal‐Free MnO2/NiO/Ni‐Based Bifunctional Air Electrodes for Metal–Air Batteries with an Alkaline Electrolyte

State-of-the-art with the prospects of cobalt-based metal-organic frameworks for solar cell applications

Porous transition metal-based nanostructures as efficient cathodes for aluminium-air batteries

Contact Info

Product

Resources

About

Growth restriction of Co ₃ O ₄ nanoparticles by α‐MnO ₂ nanorods as air cathode catalyst for rechargeable aluminum‐air battery

Investigation of Highly Active Carbon‐, Cobalt‐, and Noble Metal‐Free MnO₂/NiO/Ni‐Based Bifunctional Air Electrodes for Metal–Air Batteries with an Alkaline Electrolyte

Investigation of Highly Active Carbon‐, Cobalt‐, and Noble Metal‐Free MnO₂/NiO/Ni‐Based Bifunctional Air Electrodes for Metal–Air Batteries with an Alkaline Electrolyte