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Your search keyword '"Madagalam, Mallikarjun"' showing total 16 results
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16 results on '"Madagalam, Mallikarjun"'

7. Unraveling the Effect of the Chemical and Structural Composition of ZnxNi1−xFe2O4 on the Electron Transfer at the Electrochemical Interface.

Author

Madagalam, Mallikarjun, Bartoli, Mattia, Rosito, Michele, Blangetti, Nicola, Etzi Coller Pascuzzi, Marco, Padovano, Elisa, Bonelli, Barbara, Carrara, Sandro, and Tagliaferro, Alberto

Subjects
*CHARGE exchange, *TRANSITION metal oxides, *X-ray photoelectron spectroscopy, *CONDUCTION bands, *VALENCE bands, *MASS transfer, *POTENTIOMETRY
Abstract

In order to deepen the understanding of the role of transition metal oxides in electron transfer at the electrochemical interface, the performance of ZnxNi1−xFe2O4 (x = 0, 0.2, 0.4, 0.6, 0.8, 1) nanomaterials in electrochemical sensing is studied. Nanomaterials are synthesized by simple autocombustion synthesis procedure. Field‐emission scanning electron microscopy characterization shows that the particles have a size between 30 and 70 nm with an average crystallite size between 24 and 35 nm. The bandgap energies of the nanomaterials, as estimated by UV–vis experiments, are in the 2.32–2.56 eV range. The valence band maximum is evaluated using X‐ray photoelectron spectroscopy and the position of the conduction band minimum is estimated. The ZnFe2O4 sensor has the best performances: highest rate constant (13.1 ± 2.8 ms−1), lowest peak‐to‐peak separation (386 ± 2 mV), and highest sensitivity (37.75 ± 0.17 μA mM−1). Its limit of detection (7.94 ± 0.04 μM) is second best, and its sensitivity is more than twice the sensitivity of the bare sensor (16.7 ± 0.9 μA mM−1). Nanomaterials energy bands mapping with the experimental redox potentials is performed to predict the electron transfer at the electrochemical interface, and the importance of surface states/defects is highlighted in the electron transfer mechanism. [ABSTRACT FROM AUTHOR]

Published
2023
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8. Laser‐Induced, Green and Biocompatible Paper‐Based Devices for Circular Electronics (Adv. Funct. Mater. 17/2023)

Author

Cantarella, Giuseppe, primary, Madagalam, Mallikarjun, additional, Merino, Ignacio, additional, Ebner, Christian, additional, Ciocca, Manuela, additional, Polo, Andrea, additional, Ibba, Pietro, additional, Bettotti, Paolo, additional, Mukhtar, Ahmad, additional, Shkodra, Bajramshahe, additional, Inam, AKM Sarwar, additional, Johnson, Alexander J., additional, Pouryazdan, Arash, additional, Paganini, Matteo, additional, Tiziani, Raphael, additional, Mimmo, Tanja, additional, Cesco, Stefano, additional, Münzenrieder, Niko, additional, Petti, Luisa, additional, Cohen, Nitzan, additional, and Lugli, Paolo, additional

Published
2023
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11. Assessing the role of textiles in the performance of wearable screen-printed strain sensors for breathing rate monitoring

Author

Costa Angeli, Martina Aurora, primary, Madagalam, Mallikarjun, additional, Petrelli, Mattia, additional, Pogliaghi, Silvia, additional, Scarton, Alessandra, additional, Ibba, Pietro, additional, Avancini, Enrico, additional, Gori, Federico, additional, Biasi, Roberto, additional, Petti, Luisa, additional, and Lugli, Paolo, additional

Published
2021
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12. 2.4 GHz Microstrip Patch Antenna Fabricated by Means of Laser Induced Graphitization of a Cellulose-based Paper Substrate

Author

Ahmad, Mukhtar, primary, Cantarella, Giuseppe, additional, Angeli, Martina Aurora Costa, additional, Madagalam, Mallikarjun, additional, Ebner, Christian, additional, Ciocca, Manuela, additional, Riaz, Raheel, additional, Ibba, Pietro, additional, Petrelli, Mattia, additional, Merino, Ignacio, additional, Cohen, Nitzan, additional, Lugli, Paolo, additional, and Petti, Luisa, additional

Published
2021
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